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source: trunk/src/helpers/winh.c@ 257

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Last change on this file since 257 was 243, checked in by umoeller, 23 years ago
New build system, multimedia, other misc fixes.
Property svn:eol-style set to `CRLF` Property svn:keywords set to `Author Date Id Revision`
File size: 185.6 KB

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1
2	/*
3	*@@sourcefile winh.c:
4	* contains Presentation Manager helper functions that are
5	* independent of a single application, i.e. these can be
6	* used w/out the rest of the XWorkplace source in any PM
7	* program.
8	*
9	* Usage: All PM programs.
10	*
11	* Function prefixes (new with V0.81):
12	* -- winh* Win (Presentation Manager) helper functions
13	*
14	* Note: Version numbering in this file relates to XWorkplace version
15	* numbering.
16	*
17	*@@header "helpers\winh.h"
18	*/
19
20	/*
21	* Copyright (C) 1997-2002 Ulrich Mller.
22	* This file is part of the "XWorkplace helpers" source package.
23	* This is free software; you can redistribute it and/or modify
24	* it under the terms of the GNU General Public License as published
25	* by the Free Software Foundation, in version 2 as it comes in the
26	* "COPYING" file of the XWorkplace main distribution.
27	* This program is distributed in the hope that it will be useful,
28	* but WITHOUT ANY WARRANTY; without even the implied warranty of
29	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30	* GNU General Public License for more details.
31	*/
32
33	#define OS2EMX_PLAIN_CHAR
34	// this is needed for "os2emx.h"; if this is defined,
35	// emx will define PSZ as _signed_ char, otherwise
36	// as unsigned char
37
38	#define INCL_DOSPROCESS
39	#define INCL_DOSMODULEMGR
40	#define INCL_DOSSEMAPHORES
41	#define INCL_DOSDEVICES
42	#define INCL_DOSDEVIOCTL
43	#define INCL_DOSSESMGR
44	#define INCL_DOSERRORS
45
46	#define INCL_WINWINDOWMGR
47	#define INCL_WINMESSAGEMGR
48	#define INCL_WINFRAMEMGR
49	#define INCL_WININPUT
50	#define INCL_WINDIALOGS
51	#define INCL_WINPOINTERS
52	#define INCL_WINRECTANGLES
53	#define INCL_WINSHELLDATA
54	#define INCL_WINTIMER
55	#define INCL_WINSYS
56	#define INCL_WINHELP
57	#define INCL_WINPROGRAMLIST
58	#define INCL_WINSWITCHLIST
59	#define INCL_WINBUTTONS
60	#define INCL_WINSTATICS
61	#define INCL_WINMENUS
62	#define INCL_WINENTRYFIELDS
63	#define INCL_WINSCROLLBARS
64	#define INCL_WINLISTBOXES
65	#define INCL_WINSTDSPIN
66	#define INCL_WINSTDSLIDER
67	#define INCL_WINCIRCULARSLIDER
68	#define INCL_WINSTDFILE
69	#define INCL_WINCLIPBOARD
70
71	#define INCL_SPL
72	#define INCL_SPLDOSPRINT
73	#define INCL_SPLERRORS
74
75	#define INCL_GPIBITMAPS
76	#define INCL_GPIPRIMITIVES
77	#include <os2.h>
78
79	#include <stdlib.h>
80	#include <string.h>
81	#include <stdio.h>
82	#include <stdarg.h>
83
84	#include "setup.h" // code generation and debugging options
85
86	#include "helpers\dosh.h"
87	#include "helpers\winh.h"
88	#include "helpers\prfh.h"
89	#include "helpers\gpih.h"
90	#include "helpers\standards.h"
91	#include "helpers\stringh.h"
92	#include "helpers\xstring.h" // extended string helpers
93
94	/*
95	*@@category: Helpers\PM helpers\Wrappers
96	*/
97
98	/* ******************************************************************
99	*
100	* Wrappers
101	*
102	********************************************************************/
103
104	#ifdef WINH_STANDARDWRAPPERS
105
106	/*
107	*@@ winhSendMsg:
108	* wrapper for WinSendMsg.
109	*
110	* If WINH_STANDARDWRAPPERS is #defined before
111	* including win.h, all WinSendMsg calls are
112	* redefined to use this wrapper instead. This
113	* reduces the amount of external fixups required
114	* for loading the module.
115	*
116	*@@added V0.9.12 (2001-05-18) [umoeller]
117	*/
118
119	MRESULT winhSendMsg(HWND hwnd, ULONG msg, MPARAM mp1, MPARAM mp2)
120	{
121	// put the call in brackets so the macro won't apply here
122	return (WinSendMsg)(hwnd, msg, mp1, mp2);
123	}
124
125	/*
126	*@@ winhSendDlgItemMsg:
127	* wrapper for WinSendDlgItemMsg.
128	*
129	* If WINH_STANDARDWRAPPERS is #defined before
130	* including win.h, all WinSendMsg calls are
131	* redefined to use this wrapper instead. This
132	* reduces the amount of external fixups required
133	* for loading the module.
134	*
135	*@@added V0.9.13 (2001-06-27) [umoeller]
136	*/
137
138	MRESULT winhSendDlgItemMsg(HWND hwnd, ULONG id, ULONG msg, MPARAM mp1, MPARAM mp2)
139	{
140	return (WinSendDlgItemMsg)(hwnd, id, msg, mp1, mp2);
141	}
142
143	/*
144	*@@ winhPostMsg:
145	* wrapper for WinPostMsg.
146	*
147	* If WINH_STANDARDWRAPPERS is #defined before
148	* including win.h, all WinSendMsg calls are
149	* redefined to use this wrapper instead. This
150	* reduces the amount of external fixups required
151	* for loading the module.
152	*
153	*@@added V0.9.12 (2001-05-18) [umoeller]
154	*/
155
156	BOOL winhPostMsg(HWND hwnd, ULONG msg, MPARAM mp1, MPARAM mp2)
157	{
158	// put the call in brackets so the macro won't apply here
159	return (WinPostMsg)(hwnd, msg, mp1, mp2);
160	}
161
162	/*
163	*@@ winhWindowFromID:
164	*
165	*@@added V0.9.12 (2001-05-18) [umoeller]
166	*/
167
168	HWND winhWindowFromID(HWND hwnd, ULONG id)
169	{
170	// put the call in brackets so the macro won't apply here
171	return (WinWindowFromID)(hwnd, id);
172	}
173
174	/*
175	*@@ winhQueryWindow:
176	*
177	*@@added V0.9.12 (2001-05-18) [umoeller]
178	*/
179
180	HWND winhQueryWindow(HWND hwnd, LONG lCode)
181	{
182	// put the call in brackets so the macro won't apply here
183	return (WinQueryWindow)(hwnd, lCode);
184	}
185
186	/*
187	*@@ winhQueryWindowPtr:
188	*
189	*@@added V0.9.13 (2001-06-21) [umoeller]
190	*/
191
192	PVOID winhQueryWindowPtr(HWND hwnd, LONG index)
193	{
194	// put the call in brackets so the macro won't apply here
195	return (WinQueryWindowPtr)(hwnd, index);
196	}
197
198	/*
199	*@@ winhSetWindowText2:
200	*
201	*@@added V0.9.13 (2001-06-21) [umoeller]
202	*/
203
204	BOOL winhSetWindowText2(HWND hwnd, const char *pcsz)
205	{
206	// put the call in brackets so the macro won't apply here
207	return (WinSetWindowText)(hwnd, (PSZ)pcsz);
208	}
209
210	/*
211	*@@ winhSetDlgItemText:
212	*
213	*@@added V0.9.13 (2001-06-21) [umoeller]
214	*/
215
216	BOOL winhSetDlgItemText(HWND hwnd, ULONG id, const char *pcsz)
217	{
218	// put the call in brackets so the macro won't apply here
219	return (WinSetDlgItemText)(hwnd, id, (PSZ)pcsz);
220	}
221
222	/*
223	*@@ winhRequestMutexSem:
224	*
225	*@@added V0.9.16 (2002-01-26) [umoeller]
226	*/
227
228	APIRET winhRequestMutexSem(HMTX hmtx, ULONG ulTimeout)
229	{
230	// put the call in brackets so the macro won't apply here
231	return (WinRequestMutexSem)(hmtx, ulTimeout);
232	}
233
234	#endif // WINH_STANDARDWRAPPERS
235
236	/*
237	*@@category: Helpers\PM helpers\Rectangle helpers
238	*/
239
240	/* ******************************************************************
241	*
242	* Rectangle helpers
243	*
244	********************************************************************/
245
246	/*
247	*@@ winhOffsetRect:
248	* like WinOffsetRect, but doesn't require
249	* an anchor block to be passed in. Why
250	* the original would need an anchor block
251	* for this awfully complicated task is
252	* a mystery to me anyway.
253	*
254	*@@added V0.9.9 (2001-03-13) [umoeller]
255	*/
256
257	VOID winhOffsetRect(PRECTL prcl,
258	LONG lx,
259	LONG ly)
260	{
261	prcl->xLeft += lx;
262	prcl->xRight += lx;
263	prcl->yBottom += ly;
264	prcl->yTop += ly;
265	}
266
267	/*
268	*@@category: Helpers\PM helpers\Generics
269	*/
270
271	/* ******************************************************************
272	*
273	* Global variables
274	*
275	********************************************************************/
276
277	extern LONG G_cxScreen = 0,
278	G_cyScreen = 0,
279	G_cxIcon = 0,
280	G_cyIcon = 0,
281	G_lcol3DDark = 0, // lo-3D color
282	G_lcol3DLight = 0; // hi-3D color
283
284	/* ******************************************************************
285	*
286	* Generics
287	*
288	********************************************************************/
289
290	/*
291	*@@ winhInitGlobals:
292	* initializes a few global variables that are usually
293	* used all the time in many applications and also
294	* internally by many helper routines. You must call
295	* this at the start of your application if you want
296	* to use these.
297	*
298	*@@added V1.0.1 (2002-11-30) [umoeller]
299	*/
300
301	VOID winhInitGlobals(VOID)
302	{
303	G_cxScreen = WinQuerySysValue(HWND_DESKTOP, SV_CXSCREEN);
304	G_cyScreen = WinQuerySysValue(HWND_DESKTOP, SV_CYSCREEN);
305	G_cxIcon = WinQuerySysValue(HWND_DESKTOP, SV_CXICON);
306	G_cyIcon = WinQuerySysValue(HWND_DESKTOP, SV_CYICON);
307	G_lcol3DDark = WinQuerySysColor(HWND_DESKTOP, SYSCLR_BUTTONDARK, 0);
308	G_lcol3DLight = WinQuerySysColor(HWND_DESKTOP, SYSCLR_BUTTONLIGHT, 0);
309	}
310
311	/*
312	*@@ winhQueryWindowStyle:
313	*
314	*@@added V0.9.13 (2001-07-02) [umoeller]
315	*/
316
317	ULONG winhQueryWindowStyle(HWND hwnd)
318	{
319	return WinQueryWindowULong(hwnd, QWL_STYLE);
320	}
321
322	/*
323	*@@ winhEnableDlgItem:
324	*
325	*@@added V0.9.12 (2001-05-18) [umoeller]
326	*/
327
328	BOOL winhEnableDlgItem(HWND hwndDlg,
329	SHORT id,
330	BOOL fEnable)
331	{
332	return WinEnableWindow(WinWindowFromID(hwndDlg, id), fEnable);
333	}
334
335	/*
336	*@@ winhIsDlgItemEnabled:
337	*
338	*@@added V0.9.12 (2001-05-18) [umoeller]
339	*/
340
341	BOOL winhIsDlgItemEnabled(HWND hwndDlg,
342	SHORT id)
343	{
344	return WinIsWindowEnabled(WinWindowFromID(hwndDlg, id));
345	}
346
347	/*
348	*@@ winhDestroyWindow:
349	* wrapper around WinDestroyWindow that also sets
350	* *phwnd to NULLHANDLE to avoid loose window
351	* handles lying around.
352	*
353	*@@added V1.0.1 (2002-12-11) [umoeller]
354	*/
355
356	BOOL winhDestroyWindow(HWND *phwnd)
357	{
358	if ( (*phwnd)
359	&& (WinDestroyWindow(*phwnd))
360	)
361	{
362	*phwnd = NULLHANDLE;
363
364	return TRUE;
365	}
366
367	return FALSE;
368	}
369
370	/*
371	*@@category: Helpers\PM helpers\Menu helpers
372	*/
373
374	/* ******************************************************************
375	*
376	* Menu helpers
377	*
378	********************************************************************/
379
380	/*
381	*@@ winhQueryMenuItem:
382	* wrapper around MM_QUERYITEM.
383	*
384	*@@added V0.9.12 (2001-05-18) [umoeller]
385	*/
386
387	BOOL winhQueryMenuItem(HWND hwndMenu,
388	USHORT usItemID,
389	BOOL fSearchSubmenus,
390	PMENUITEM pmi) // out: MENUITEM data
391	{
392	return (BOOL)WinSendMsg(hwndMenu,
393	MM_QUERYITEM,
394	MPFROM2SHORT(usItemID, fSearchSubmenus),
395	(MPARAM)pmi);
396	}
397
398	/*
399	*@@ winhQuerySubmenu:
400	* tests whether sID specifies a submenu in
401	* hMenu and returns the submenu window handle
402	* if so.
403	*
404	*@@added V0.9.20 (2002-08-10) [umoeller]
405	*/
406
407	HWND winhQuerySubmenu(HWND hMenu,
408	SHORT sID)
409	{
410	MENUITEM mi = {0};
411	if ( (WinSendMsg(hMenu,
412	MM_QUERYITEM,
413	MPFROM2SHORT(sID,
414	FALSE),
415	(MPARAM)&mi))
416	&& (mi.afStyle & MIS_SUBMENU)
417	)
418	return mi.hwndSubMenu;
419
420	return NULLHANDLE;
421	}
422
423	/*
424	*@@ winhInsertMenuItem:
425	* this inserts one one menu item into a given menu.
426	*
427	* Returns the return value of the MM_INSERTITEM msg:
428	* -- MIT_MEMERROR: space allocation for menu item failed
429	* -- MIT_ERROR: other error
430	* -- other: zero-based index of new item in menu.
431	*/
432
433	SHORT winhInsertMenuItem(HWND hwndMenu, // in: menu to insert item into
434	SHORT iPosition, // in: zero-based index of where to
435	// insert or MIT_END
436	SHORT sItemId, // in: ID of new menu item
437	const char *pcszItemTitle, // in: title of new menu item
438	SHORT afStyle,
439	// in: MIS_* style flags.
440	// Valid menu item styles are:
441	// -- MIS_SUBMENU
442	// -- MIS_SEPARATOR
443	// -- MIS_BITMAP: the display object is a bit map.
444	// -- MIS_TEXT: the display object is a text string.
445	// -- MIS_BUTTONSEPARATOR:
446	// The item is a menu button. Any menu can have zero,
447	// one, or two items of this type. These are the last
448	// items in a menu and are automatically displayed after
449	// a separator bar. The user cannot move the cursor to
450	// these items, but can select them with the pointing
451	// device or with the appropriate key.
452	// -- MIS_BREAK: the item begins a new row or column.
453	// -- MIS_BREAKSEPARATOR:
454	// Same as MIS_BREAK, except that it draws a separator
455	// between rows or columns of a pull-down menu.
456	// This style can only be used within a submenu.
457	// -- MIS_SYSCOMMAND:
458	// menu posts a WM_SYSCOMMAND message rather than a
459	// WM_COMMAND message.
460	// -- MIS_OWNERDRAW:
461	// WM_DRAWITEM and WM_MEASUREITEM notification messages
462	// are sent to the owner to draw the item or determine its size.
463	// -- MIS_HELP:
464	// menu posts a WM_HELP message rather than a
465	// WM_COMMAND message.
466	// -- MIS_STATIC
467	// This type of item exists for information purposes only.
468	// It cannot be selected with the pointing device or
469	// keyboard.
470	SHORT afAttr)
471	// in: MIA_* attribute flags
472	// Valid menu item attributes (afAttr) are:
473	// -- MIA_HILITED: if and only if, the item is selected.
474	// -- MIA_CHECKED: a check mark appears next to the item (submenu only).
475	// -- MIA_DISABLED: item is disabled and cannot be selected.
476	// The item is drawn in a disabled state (gray).
477	// -- MIA_FRAMED: a frame is drawn around the item (top-level menu only).
478	// -- MIA_NODISMISS:
479	// if the item is selected, the submenu remains down. A menu
480	// with this attribute is not hidden until the application
481	// or user explicitly does so, for example by selecting either
482	// another menu on the action bar or by pressing the escape key.
483	{
484	MENUITEM mi;
485
486	mi.iPosition = iPosition;
487	mi.afStyle = afStyle;
488	mi.afAttribute = afAttr;
489	mi.id = sItemId;
490	mi.hwndSubMenu = 0;
491	mi.hItem = 0;
492
493	return SHORT1FROMMR(WinSendMsg(hwndMenu,
494	MM_INSERTITEM,
495	(MPARAM)&mi,
496	(MPARAM)pcszItemTitle));
497	}
498
499	/*
500	*@@ winhInsertSubmenu:
501	* this inserts a submenu into a given menu and, if
502	* sItemId != 0, inserts one item into this new submenu also.
503	*
504	* See winhInsertMenuItem for valid menu item styles and
505	* attributes.
506	*
507	* Returns the HWND of the new submenu.
508	*/
509
510	HWND winhInsertSubmenu(HWND hwndMenu, // in: menu to add submenu to
511	ULONG iPosition, // in: index where to add submenu or MIT_END
512	SHORT sMenuId, // in: menu ID of new submenu
513	const char *pcszSubmenuTitle, // in: title of new submenu
514	USHORT afMenuStyle, // in: MIS* style flags for submenu;
515	// MIS_SUBMENU will always be added
516	SHORT sItemId, // in: ID of first item to add to submenu;
517	// if 0, no first item is inserted
518	const char *pcszItemTitle, // in: title of this item
519	// (if sItemID != 0)
520	USHORT afItemStyle, // in: style flags for this item, e.g. MIS_TEXT
521	// (this is ignored if sItemID == 0)
522	USHORT afAttribute) // in: attributes for this item, e.g. MIA_DISABLED
523	// (this is ignored if sItemID == 0)
524	{
525	MENUITEM mi;
526	SHORT src = MIT_ERROR;
527	HWND hwndNewMenu;
528
529	// create new, empty menu
530	hwndNewMenu = WinCreateMenu(hwndMenu,
531	NULL); // no menu template
532	if (hwndNewMenu)
533	{
534	// add "submenu item" to this empty menu;
535	// for some reason, PM always needs submenus
536	// to be a menu item
537	mi.iPosition = iPosition;
538	mi.afStyle = afMenuStyle \| MIS_SUBMENU;
539	mi.afAttribute = 0;
540	mi.id = sMenuId;
541	mi.hwndSubMenu = hwndNewMenu;
542	mi.hItem = 0;
543	src = SHORT1FROMMR(WinSendMsg(hwndMenu, MM_INSERTITEM, (MPARAM)&mi, (MPARAM)pcszSubmenuTitle));
544	if ( (src != MIT_MEMERROR)
545	&& (src != MIT_ERROR)
546	)
547	{
548	// set the new menu's ID to the same as the
549	// submenu item
550	WinSetWindowUShort(hwndNewMenu, QWS_ID, sMenuId);
551
552	if (sItemId)
553	{
554	// item id given: insert first menu item also
555	mi.iPosition = 0;
556	mi.afStyle = afItemStyle;
557	mi.afAttribute = afAttribute;
558	mi.id = sItemId;
559	mi.hwndSubMenu = 0;
560	mi.hItem = 0;
561	WinSendMsg(hwndNewMenu,
562	MM_INSERTITEM,
563	(MPARAM)&mi,
564	(MPARAM)pcszItemTitle);
565	}
566	}
567	}
568	return hwndNewMenu;
569	}
570
571	/*
572	*@@ winhSetMenuCondCascade:
573	* sets the "conditional cascade" style
574	* on the specified submenu.
575	*
576	* This style must always be enabled manually
577	* because the resource compiler won't handle it.
578	*
579	* Note: Pass in the _submenu_ window handle,
580	* not the one of the parent. With lDefaultItem,
581	* specify the item ID in the submenu which is
582	* to be checked as the default item.
583	*
584	*@@added V0.9.12 (2001-05-22) [umoeller]
585	*@@changed V0.9.20 (2002-08-10) [umoeller]: now supporting calling this more than once
586	*/
587
588	BOOL winhSetMenuCondCascade(HWND hwndMenu, // in: submenu handle
589	LONG lDefaultItem) // in: item ID of new default item
590	{
591	BOOL brc;
592	ULONG ulStyle = WinQueryWindowULong(hwndMenu, QWL_STYLE);
593	LONG lOldDefault = -1;
594
595	if (ulStyle & MS_CONDITIONALCASCADE)
596	{
597	// menu is already conditional cascade:
598	lOldDefault = (LONG)WinSendMsg(hwndMenu,
599	MM_QUERYDEFAULTITEMID,
600	0,
601	0);
602	}
603	else
604	{
605	ulStyle \|= MS_CONDITIONALCASCADE;
606	WinSetWindowULong(hwndMenu, QWL_STYLE, ulStyle);
607	}
608
609	// make the first item in the subfolder
610	// the default of cascading submenu
611	brc = (BOOL)WinSendMsg(hwndMenu,
612	MM_SETDEFAULTITEMID,
613	(MPARAM)lDefaultItem,
614	0);
615
616	if ( (lOldDefault != -1)
617	&& (lOldDefault != lDefaultItem)
618	)
619	{
620	// unset the "checked" attribute of the old one
621	// or we'll have two in the menu
622	WinSendMsg(hwndMenu,
623	MM_SETITEMATTR,
624	MPFROM2SHORT(lOldDefault,
625	FALSE),
626	MPFROM2SHORT(MIA_CHECKED, 0));
627	}
628
629	return brc;
630	}
631
632	/*
633	*@@ winhRemoveMenuItems:
634	* removes multiple menu items at once, as
635	* specified in the given array of menu item
636	* IDs.
637	*
638	*@@added V1.0.0 (2002-08-12) [umoeller]
639	*/
640
641	BOOL XWPENTRY winhRemoveMenuItems(HWND hwndMenu, // in: menu to remove from
642	const SHORT *asItemIDs, // in: array of menu item IDs
643	ULONG cItemIDs) // in: array item count
644	{
645	ULONG ul;
646	for (ul = 0;
647	ul < cItemIDs;
648	++ul)
649	{
650	SHORT s = asItemIDs[ul];
651	winhRemoveMenuItem(hwndMenu,
652	s);
653	}
654
655	return TRUE;
656	}
657
658	/*
659	*@@ winhInsertMenuSeparator:
660	* this inserts a separator into a given menu at
661	* the given position (which may be MIT_END);
662	* returns the position at which the item was
663	* inserted.
664	*/
665
666	SHORT winhInsertMenuSeparator(HWND hMenu, // in: menu to add separator to
667	SHORT iPosition, // in: index where to add separator or MIT_END
668	SHORT sId) // in: separator menu ID (doesn't really matter)
669	{
670	MENUITEM mi;
671	mi.iPosition = iPosition;
672	mi.afStyle = MIS_SEPARATOR; // append separator
673	mi.afAttribute = 0;
674	mi.id = sId;
675	mi.hwndSubMenu = 0;
676	mi.hItem = 0;
677
678	return SHORT1FROMMR(WinSendMsg(hMenu,
679	MM_INSERTITEM,
680	(MPARAM)&mi,
681	(MPARAM)""));
682	}
683
684	/*
685	*@@ winhCopyMenuItem2:
686	* copies a menu item from hmenuSource to hmenuTarget.
687	*
688	* This creates a full duplicate. If usID specifies
689	* a submenu, the entire submenu is copied as well
690	* (this will then recurse).
691	*
692	* fl can be any combination of:
693	*
694	* -- COPYFL_STRIPTABS: strip off \t and everything
695	* that follows, if present.
696	*
697	* NOTE: Copying submenus will work only if each item
698	* in the submenu has a unique menu ID. This is due
699	* to the dumb implementation of menus in PM where
700	* it is impossible to query menu items without
701	* knowing their ID.
702	*
703	*@@added V0.9.9 (2001-03-09) [umoeller]
704	*@@changed V0.9.20 (2002-08-10) [umoeller]: renamed, added fl
705	*/
706
707	BOOL winhCopyMenuItem2(HWND hmenuTarget,
708	HWND hmenuSource,
709	USHORT usID,
710	SHORT sTargetPosition, // in: position to insert at or MIT_END
711	ULONG fl) // in: COPYFL_* flags
712	{
713	BOOL brc = FALSE;
714	MENUITEM mi = {0};
715	if (WinSendMsg(hmenuSource,
716	MM_QUERYITEM,
717	MPFROM2SHORT(usID,
718	FALSE),
719	(MPARAM)&mi))
720	{
721	// found in source:
722	// is it a separator?
723	if (mi.afStyle & MIS_SEPARATOR)
724	winhInsertMenuSeparator(hmenuTarget,
725	sTargetPosition,
726	usID);
727	else
728	{
729	// no separator:
730	// get item text
731	PSZ pszSource;
732	if (pszSource = winhQueryMenuItemText(hmenuSource,
733	usID))
734	{
735	PSZ p;
736	// remove the hotkey description
737	// V0.9.20 (2002-08-10) [umoeller]
738	if ( (fl & COPYFL_STRIPTABS)
739	&& (p = strchr(pszSource, '\t'))
740	)
741	*p = '\0';
742
743	if ( (mi.afStyle & MIS_SUBMENU)
744	&& (mi.hwndSubMenu)
745	)
746	{
747	// this is the top of a submenu:
748	HWND hwndSubMenu;
749	if (hwndSubMenu = winhInsertSubmenu(hmenuTarget,
750	sTargetPosition,
751	mi.id,
752	pszSource,
753	mi.afStyle,
754	0,
755	NULL,
756	0,
757	0))
758	{
759	// now copy all the items in the submenu
760	SHORT cMenuItems = SHORT1FROMMR(WinSendMsg(mi.hwndSubMenu,
761	MM_QUERYITEMCOUNT,
762	0,
763	0));
764	// loop through all entries in the original submenu
765	ULONG i;
766	for (i = 0;
767	i < cMenuItems;
768	i++)
769	{
770	SHORT id = SHORT1FROMMR(WinSendMsg(mi.hwndSubMenu,
771	MM_ITEMIDFROMPOSITION,
772	MPFROMSHORT(i),
773	0));
774	// recurse
775	winhCopyMenuItem2(hwndSubMenu,
776	mi.hwndSubMenu,
777	id,
778	MIT_END,
779	fl);
780	}
781
782	// now check... was the original submenu
783	// "conditional cascade"?
784	if (WinQueryWindowULong(mi.hwndSubMenu,
785	QWL_STYLE)
786	& MS_CONDITIONALCASCADE)
787	// yes:
788	{
789	// get the original default item
790	SHORT sDefID = SHORT1FROMMR(WinSendMsg(mi.hwndSubMenu,
791	MM_QUERYDEFAULTITEMID,
792	0,
793	0));
794	// set "conditional cascade style" on target too
795	winhSetMenuCondCascade(hwndSubMenu, sDefID);
796	}
797	} // end if (hwndSubmenu)
798	} // end if ( (mi.afStyle & MIS_SUBMENU)
799	else
800	{
801	// no submenu:
802	// just copy that item
803	SHORT s;
804	mi.iPosition = sTargetPosition;
805	s = SHORT1FROMMR(WinSendMsg(hmenuTarget,
806	MM_INSERTITEM,
807	MPFROMP(&mi),
808	MPFROMP(pszSource)));
809	if ( (s != MIT_MEMERROR)
810	&& (s != MIT_ERROR)
811	)
812	brc = TRUE;
813	}
814
815	free(pszSource);
816
817	} // end if (pszSource)
818	} // end else if (mi.afStyle & MIS_SEPARATOR)
819	} // end if (WinSendMsg(hmenuSource, MM_QUERYITEM,...
820
821	return brc;
822	}
823
824	/*
825	*@@ winhCopyMenuItem:
826	* wrapper for winhCopyMenuItem2 because it was
827	* exported.
828	*
829	*@@added V0.9.20 (2002-08-10) [umoeller]
830	*/
831
832	BOOL winhCopyMenuItem(HWND hmenuTarget,
833	HWND hmenuSource,
834	USHORT usID,
835	SHORT sTargetPosition) // in: position to insert at or MIT_END
836	{
837	return winhCopyMenuItem2(hmenuTarget, hmenuSource, usID, sTargetPosition, 0);
838	}
839
840	/*
841	*@@ winhMergeIntoSubMenu:
842	* creates a new submenu in hmenuTarget with the
843	* specified title at the specified position
844	* and copies the entire contents of hmenuSource
845	* into that.
846	*
847	* Returns the window handle of the new submenu
848	* or NULLHANDLE on errors.
849	*
850	* NOTE: Copying submenus will work only if each item
851	* in the submenu has a unique menu ID. This is due
852	* to the dumb implementation of menus in PM where
853	* it is impossible to query menu items without
854	* knowing their ID.
855	*
856	*@@added V0.9.9 (2001-03-09) [umoeller]
857	*/
858
859	HWND winhMergeIntoSubMenu(HWND hmenuTarget, // in: menu where to create submenu
860	SHORT sTargetPosition, // in: position to insert at or MIT_END
861	const char *pcszTitle, // in: title of new submenu or NULL
862	SHORT sID, // in: ID of new submenu
863	HWND hmenuSource) // in: menu to merge
864	{
865	HWND hwndNewSubmenu;
866	if (hwndNewSubmenu = WinCreateMenu(hmenuTarget, NULL))
867	{
868	MENUITEM mi = {0};
869	SHORT src = 0;
870	// SHORT s = 0;
871	mi.iPosition = MIT_END;
872	mi.afStyle = MIS_TEXT \| MIS_SUBMENU;
873	mi.id = 2000;
874	mi.hwndSubMenu = hwndNewSubmenu;
875
876	WinSetWindowUShort(hwndNewSubmenu, QWS_ID, sID);
877
878	// insert new submenu into hmenuTarget
879	src = SHORT1FROMMR(WinSendMsg(hmenuTarget,
880	MM_INSERTITEM,
881	(MPARAM)&mi,
882	(MPARAM)pcszTitle));
883	if ( (src != MIT_MEMERROR)
884	&& (src != MIT_ERROR)
885	)
886	{
887	int i;
888	SHORT cMenuItems = SHORT1FROMMR(WinSendMsg(hmenuSource,
889	MM_QUERYITEMCOUNT,
890	0, 0));
891
892	// loop through all entries in the original menu
893	for (i = 0; i < cMenuItems; i++)
894	{
895	SHORT id = SHORT1FROMMR(WinSendMsg(hmenuSource,
896	MM_ITEMIDFROMPOSITION,
897	MPFROMSHORT(i),
898	0));
899	winhCopyMenuItem(hwndNewSubmenu,
900	hmenuSource,
901	id,
902	MIT_END);
903	}
904	}
905	else
906	{
907	// error:
908	WinDestroyWindow(hwndNewSubmenu);
909	hwndNewSubmenu = NULLHANDLE;
910	}
911	}
912
913	return hwndNewSubmenu;
914	}
915
916	/*
917	*@@ winhMergeIntoSubMenu:
918	* copies all items from hmenuSource into hmenuTarget,
919	* starting at the given position.
920	*
921	* Returns the no. of items that were copied.
922	*
923	* NOTE: Copying submenus will work only if each item
924	* in the submenu has a unique menu ID. This is due
925	* to the dumb implementation of menus in PM where
926	* it is impossible to query menu items without
927	* knowing their ID.
928	*
929	*@@added V0.9.20 (2002-08-10) [umoeller]
930	*/
931
932	ULONG winhMergeMenus(HWND hmenuTarget, // in: menu to copy items to
933	SHORT sTargetPosition, // in: position to insert at or MIT_END
934	HWND hmenuSource, // in: menu to merge
935	ULONG fl) // in: COPYFL_* flags for winhCopyMenuItem2
936	{
937	SHORT sTarget = MIT_END;
938
939	int i;
940	SHORT cMenuItems = SHORT1FROMMR(WinSendMsg(hmenuSource,
941	MM_QUERYITEMCOUNT,
942	0, 0));
943
944	// loop through all entries in the original menu
945	for (i = 0; i < cMenuItems; i++)
946	{
947	SHORT id = SHORT1FROMMR(WinSendMsg(hmenuSource,
948	MM_ITEMIDFROMPOSITION,
949	MPFROM2SHORT(i, 0),
950	0));
951	winhCopyMenuItem2(hmenuTarget,
952	hmenuSource,
953	id,
954	MIT_END,
955	fl);
956	}
957
958	return i;
959	}
960
961	/*
962	*@@ winhClearMenu:
963	* removes all menu items from the given (sub)menu.
964	* The menu itself is not destroyed, but is empty
965	* after calling this function.
966	*
967	*@@added V1.0.0 (2002-08-31) [umoeller]
968	*/
969
970	ULONG winhClearMenu(HWND hwndMenu)
971	{
972	ULONG cDeleted = 0;
973	SHORT sID;
974
975	// what we do is getting the menu item count
976	// and then delete the first item in the menu
977	// x times because there is no "delete menu item
978	// from position" message, and there might be
979	// duplicate IDs in the menu... this should
980	// work always
981
982	SHORT cMenuItems = SHORT1FROMMR(WinSendMsg(hwndMenu,
983	MM_QUERYITEMCOUNT,
984	0,
985	0));
986	while (cMenuItems-- > 0)
987	{
988	sID = SHORT1FROMMR(WinSendMsg(hwndMenu,
989	MM_ITEMIDFROMPOSITION,
990	MPFROMSHORT(0),
991	MPNULL));
992
993	WinSendMsg(hwndMenu,
994	MM_DELETEITEM,
995	MPFROM2SHORT(sID, FALSE),
996	0);
997
998	++cDeleted;
999	}
1000
1001	return cDeleted;
1002	}
1003
1004	/*
1005	*@@ winhQueryMenuItemText:
1006	* this returns a menu item text as a PSZ
1007	* to a newly allocated buffer or NULL if
1008	* not found.
1009	*
1010	* Returns NULL on error. Use free()
1011	* to free the return value.
1012	*
1013	* This uses MM_QUERYITEMTEXT internally.
1014	* PMREF doesn't say anything about this,
1015	* but from my testing this always recurses
1016	* into submenus.
1017	*
1018	* Use the WinSetMenuItemText macro to
1019	* set the menu item text.
1020	*/
1021
1022	PSZ winhQueryMenuItemText(HWND hwndMenu,
1023	USHORT usItemID) // in: menu item ID (not index)
1024	{
1025	PSZ prc = NULL;
1026
1027	SHORT sLength;
1028	if (sLength = SHORT1FROMMR(WinSendMsg(hwndMenu,
1029	MM_QUERYITEMTEXTLENGTH,
1030	(MPARAM)(ULONG)usItemID,
1031	(MPARAM)NULL)))
1032	{
1033	prc = (PSZ)malloc(sLength + 1);
1034	WinSendMsg(hwndMenu,
1035	MM_QUERYITEMTEXT,
1036	MPFROM2SHORT(usItemID, sLength + 1),
1037	(MPARAM)prc);
1038	}
1039
1040	return prc;
1041	}
1042
1043	/*
1044	*@@ winhAppend2MenuItemText:
1045	*
1046	*@@added V0.9.2 (2000-03-08) [umoeller]
1047	*/
1048
1049	BOOL winhAppend2MenuItemText(HWND hwndMenu,
1050	USHORT usItemID, // in: menu item ID (not index)
1051	const char *pcszAppend, // in: text to append
1052	BOOL fTab) // in: if TRUE, add \t before pcszAppend
1053	{
1054	BOOL brc = FALSE;
1055	CHAR szItemText[400];
1056	if (WinSendMsg(hwndMenu,
1057	MM_QUERYITEMTEXT,
1058	MPFROM2SHORT(usItemID,
1059	sizeof(szItemText)),
1060	(MPARAM)szItemText))
1061	{
1062	// text copied:
1063	if (fTab)
1064	{
1065	if (strchr(szItemText, '\t'))
1066	// we already have a tab:
1067	strcat(szItemText, " ");
1068	else
1069	strcat(szItemText, "\t");
1070	}
1071	strcat(szItemText, pcszAppend);
1072
1073	brc = (BOOL)WinSendMsg(hwndMenu,
1074	MM_SETITEMTEXT,
1075	MPFROMSHORT(usItemID),
1076	(MPARAM)szItemText);
1077	}
1078
1079	return brc;
1080	}
1081
1082	/*
1083	*@@ winhMenuRemoveEllipse:
1084	* removes a "..." substring from a menu item
1085	* title, if found. This is useful if confirmations
1086	* have been turned off for a certain menu item, which
1087	* should be reflected in the menu.
1088	*/
1089
1090	VOID winhMenuRemoveEllipse(HWND hwndMenu,
1091	USHORT usItemId) // in: item to remove "..." from
1092	{
1093	CHAR szBuf[255];
1094	CHAR *p;
1095	WinSendMsg(hwndMenu,
1096	MM_QUERYITEMTEXT,
1097	MPFROM2SHORT(usItemId, sizeof(szBuf)-1),
1098	(MPARAM)&szBuf);
1099	if ((p = strstr(szBuf, "...")))
1100	strcpy(p, p+3);
1101	WinSendMsg(hwndMenu,
1102	MM_SETITEMTEXT,
1103	MPFROMSHORT(usItemId),
1104	(MPARAM)&szBuf);
1105	}
1106
1107	/*
1108	*@@ winhQueryItemUnderMouse:
1109	* this queries the menu item which corresponds
1110	* to the given mouse coordinates.
1111	* Returns the ID of the menu item and stores its
1112	* rectangle in *prtlItem; returns (-1) upon errors.
1113	*/
1114
1115	SHORT winhQueryItemUnderMouse(HWND hwndMenu, // in: menu handle
1116	POINTL *pptlMouse, // in: mouse coordinates
1117	RECTL *prtlItem) // out: rectangle of menu item
1118	{
1119	SHORT s, sItemId, sItemCount;
1120	HAB habDesktop = WinQueryAnchorBlock(HWND_DESKTOP);
1121
1122	sItemCount = SHORT1FROMMR(WinSendMsg(hwndMenu, MM_QUERYITEMCOUNT, MPNULL, MPNULL));
1123
1124	for (s = 0;
1125	s <= sItemCount;
1126	s++)
1127	{
1128	sItemId = SHORT1FROMMR(WinSendMsg(hwndMenu,
1129	MM_ITEMIDFROMPOSITION,
1130	(MPARAM)(ULONG)s, MPNULL));
1131	WinSendMsg(hwndMenu,
1132	MM_QUERYITEMRECT,
1133	MPFROM2SHORT(sItemId, FALSE),
1134	(MPARAM)prtlItem);
1135	if (WinPtInRect(habDesktop, prtlItem, pptlMouse))
1136	return sItemId;
1137	}
1138	/* sItemId = (SHORT)WinSendMsg(hwndMenu, MM_ITEMIDFROMPOSITION, (MPARAM)(sItemCount-1), MPNULL);
1139	return (sItemId); */
1140
1141	return -1; // error: no valid menu item
1142	}
1143
1144	/*
1145	*@@category: Helpers\PM helpers\Slider helpers
1146	*/
1147
1148	/* ******************************************************************
1149	*
1150	* Slider helpers
1151	*
1152	********************************************************************/
1153
1154	/*
1155	*@@ winhReplaceWithLinearSlider:
1156	* this destroys the control with the ID ulID in hwndDlg
1157	* and creates a linear slider at the same position with the
1158	* same ID (effectively replacing it).
1159	*
1160	* This is needed because the IBM dialog editor (DLGEDIT.EXE)
1161	* keeps crashing when creating sliders. So the way to do
1162	* this easily is to create some other control with DLGEDIT
1163	* where the slider should be later and call this function
1164	* on that control when the dialog is initialized.
1165	*
1166	* You need to specify _one_ of the following with ulSliderStyle:
1167	* -- SLS_HORIZONTAL: horizontal slider (default)
1168	* -- SLS_VERTICAL: vertical slider
1169	*
1170	* plus _one_ additional common slider style for positioning:
1171	* -- for horizontal sliders: SLS_BOTTOM, SLS_CENTER, or SLS_TOP
1172	* -- for vertical sliders: SLS_LEFT, SLS_CENTER, or SLS_RIGHT
1173	*
1174	* Additional common slider styles are:
1175	* -- SLS_PRIMARYSCALE1: determines the location of the scale
1176	* on the slider shaft by using increment
1177	* and spacing specified for scale 1 as
1178	* the incremental value for positioning
1179	* the slider arm. Scale 1 is displayed
1180	* above the slider shaft of a horizontal
1181	* slider and to the right of the slider
1182	* shaft of a vertical slider. This is
1183	* the default for a slider.
1184	* -- SLS_PRIMARYSCALE2: not supported by this function
1185	* -- SLS_READONLY: creates a read-only slider, which
1186	* presents information to the user but
1187	* allows no interaction with the user.
1188	* -- SLS_RIBBONSTRIP: fills, as the slider arm moves, the
1189	* slider shaft between the home position
1190	* and the slider arm with a color value
1191	* different from slider shaft color,
1192	* similar to mercury in a thermometer.
1193	* -- SLS_OWNERDRAW: notifies the application whenever the
1194	* slider shaft, the ribbon strip, the
1195	* slider arm, and the slider background
1196	* are to be drawn.
1197	* -- SLS_SNAPTOINCREMENT: causes the slider arm, when positioned
1198	* between two values, to be positioned
1199	* to the nearest value and redrawn at
1200	* that position.
1201	*
1202	* Additionally, for horizontal sliders:
1203	* -- SLS_BUTTONSLEFT: specifies that the optional slider
1204	* buttons are to be used and places them
1205	* to the left of the slider shaft. The
1206	* buttons move the slider arm by one
1207	* position, left or right, in the
1208	* direction selected.
1209	* -- SLS_BUTTONSRIGHT: specifies that the optional slider
1210	* buttons are to be used and places them
1211	* to the right of the slider shaft. The
1212	* buttons move the slider arm by one
1213	* position, left or right, in the
1214	* direction selected.
1215	* -- SLS_HOMELEFT: specifies the slider arm's home
1216	* position. The left edge is used as the
1217	* base value for incrementing (default).
1218	* -- SLS_HOMERIGHT: specifies the slider arm's home
1219	* position. The right edge is used as
1220	* the base value for incrementing.
1221	*
1222	* Instead, for vertical sliders:
1223	* -- SLS_BUTTONSBOTTOM: specifies that the optional slider
1224	* buttons are to be used and places them
1225	* at the bottom of the slider shaft. The
1226	* buttons move the slider arm by one
1227	* position, up or down, in the direction
1228	* selected.
1229	* -- SLS_BUTTONSTOP: specifies that the optional slider
1230	* buttons are to be used and places them
1231	* at the top of the slider shaft. The
1232	* buttons move the slider arm by one
1233	* position, up or down, in the direction
1234	* selected.
1235	* -- SLS_HOMEBOTTOM: specifies the slider arm's home
1236	* position. The bottom of the slider is
1237	* used as the base value for
1238	* incrementing.
1239	* -- SLS_HOMETOP: specifies the slider arm's home
1240	* position. The top of the slider is
1241	* used as the base value for
1242	* incrementing.
1243	*
1244	* Notes: This function automatically adds WS_PARENTCLIP,
1245	* WS_TABSTOP, and WS_SYNCPAINT to the specified styles.
1246	* For the WS_TABSTOP style, hwndInsertAfter is important.
1247	* If you specify HWND_TOP, your window will be the first
1248	* in the tab stop list.
1249	*
1250	* It also shows the slider after having done all the
1251	* processing in here by calling WinShowWindow.
1252	*
1253	* Also, we only provide support for scale 1 here, so
1254	* do not specify SLS_PRIMARYSCALE2 with ulSliderStyle,
1255	* and we have the slider calculate all the spacings.
1256	*
1257	* This returns the HWND of the slider or NULLHANDLE upon
1258	* errors.
1259	*
1260	*@@added V0.9.0 [umoeller]
1261	*/
1262
1263	HWND winhReplaceWithLinearSlider(HWND hwndParent, // in: parent of old control and slider
1264	HWND hwndOwner, // in: owner of old control and slider
1265	HWND hwndInsertAfter, // in: the control after which the slider should
1266	// come up, or HWND_TOP, or HWND_BOTTOM
1267	ULONG ulID, // in: ID of old control and slider
1268	ULONG ulSliderStyle, // in: SLS_* styles
1269	ULONG ulTickCount) // in: number of ticks (scale 1)
1270	{
1271	HWND hwndSlider = NULLHANDLE;
1272	HWND hwndKill = WinWindowFromID(hwndParent, ulID);
1273	if (hwndKill)
1274	{
1275	SWP swpControl;
1276	if (WinQueryWindowPos(hwndKill, &swpControl))
1277	{
1278	SLDCDATA slcd;
1279
1280	// destroy the old control
1281	WinDestroyWindow(hwndKill);
1282
1283	// initialize slider control data
1284	slcd.cbSize = sizeof(SLDCDATA);
1285	slcd.usScale1Increments = ulTickCount;
1286	slcd.usScale1Spacing = 0; // have slider calculate it
1287	slcd.usScale2Increments = 0;
1288	slcd.usScale2Spacing = 0;
1289
1290	// create a slider with the same ID at the same
1291	// position
1292	hwndSlider = WinCreateWindow(hwndParent,
1293	WC_SLIDER,
1294	NULL, // no window text
1295	ulSliderStyle
1296	\| WS_PARENTCLIP
1297	\| WS_SYNCPAINT
1298	\| WS_TABSTOP,
1299	swpControl.x,
1300	swpControl.y,
1301	swpControl.cx,
1302	swpControl.cy,
1303	hwndOwner,
1304	hwndInsertAfter,
1305	ulID, // same ID as destroyed control
1306	&slcd, // slider control data
1307	NULL); // presparams
1308
1309	WinSendMsg(hwndSlider,
1310	SLM_SETTICKSIZE,
1311	MPFROM2SHORT(SMA_SETALLTICKS,
1312	6), // 15 pixels high
1313	NULL);
1314
1315	WinShowWindow(hwndSlider, TRUE);
1316	}
1317	}
1318
1319	return hwndSlider;
1320	}
1321
1322	/*
1323	*@@ winhSetSliderTicks:
1324	* this adds ticks to the given linear slider,
1325	* which are ulPixels pixels high. A useful
1326	* value for this is 4.
1327	*
1328	* This queries the slider for the primary
1329	* scale values. Only the primary scale is
1330	* supported.
1331	*
1332	* This function goes sets the ticks twice,
1333	* once with mpEveryOther1 and ulPixels1,
1334	* and then a second time with mpEveryOther2
1335	* and ulPixels2. This allows you to quickly
1336	* give, say, every tenth item a taller tick.
1337	*
1338	* For every set, if mpEveryOther is 0, this sets
1339	* all ticks on the primary slider scale.
1340	*
1341	* If mpEveryOther is != 0, SHORT1FROMMP
1342	* specifies the first tick to set, and
1343	* SHORT2FROMMP specifies every other tick
1344	* to set from there. For example:
1345	*
1346	+ MPFROM2SHORT(9, 10)
1347	*
1348	* would set tick 9, 19, 29, and so forth.
1349	*
1350	* If both mpEveryOther and ulPixels are -1,
1351	* that set is skipped.
1352	*
1353	* Example: Considering a slider with a
1354	* primary scale from 0 to 30, using
1355	*
1356	+ winhSetSliderTicks(hwndSlider,
1357	+ 0, // every tick
1358	+ 3, // to three pixels
1359	+ MPFROM2SHORT(9, 10) // then every tenth
1360	+ 6); // to six pixels.
1361	*
1362	* Returns FALSE upon errors.
1363	*
1364	*@@added V0.9.1 (99-12-04) [umoeller]
1365	*@@changed V0.9.7 (2001-01-18) [umoeller]: added second set
1366	*/
1367
1368	BOOL winhSetSliderTicks(HWND hwndSlider, // in: linear slider
1369	MPARAM mpEveryOther1, // in: set 1
1370	ULONG ulPixels1,
1371	MPARAM mpEveryOther2, // in: set 2
1372	ULONG ulPixels2)
1373	{
1374	BOOL brc = FALSE;
1375
1376	ULONG ulSet;
1377	MPARAM mpEveryOther = mpEveryOther1;
1378	ULONG ulPixels = ulPixels1;
1379
1380	// do this twice
1381	for (ulSet = 0;
1382	ulSet < 2;
1383	ulSet++)
1384	{
1385	if (mpEveryOther == 0)
1386	{
1387	// set all ticks:
1388	brc = (BOOL)WinSendMsg(hwndSlider,
1389	SLM_SETTICKSIZE,
1390	MPFROM2SHORT(SMA_SETALLTICKS,
1391	ulPixels),
1392	NULL);
1393	}
1394	else if ( (mpEveryOther != (MPARAM)-1) && (ulPixels != -1) )
1395	{
1396	SLDCDATA slcd;
1397	WNDPARAMS wp;
1398	memset(&wp, 0, sizeof(WNDPARAMS));
1399	wp.fsStatus = WPM_CTLDATA;
1400	wp.cbCtlData = sizeof(slcd);
1401	wp.pCtlData = &slcd;
1402	// get primary scale data from the slider
1403	if (WinSendMsg(hwndSlider,
1404	WM_QUERYWINDOWPARAMS,
1405	(MPARAM)&wp,
1406	0))
1407	{
1408	USHORT usStart = SHORT1FROMMP(mpEveryOther),
1409	usEveryOther = SHORT2FROMMP(mpEveryOther);
1410
1411	USHORT usScale1Max = slcd.usScale1Increments,
1412	us;
1413
1414	brc = TRUE;
1415
1416	for (us = usStart; us < usScale1Max; us += usEveryOther)
1417	{
1418	if (!(BOOL)WinSendMsg(hwndSlider,
1419	SLM_SETTICKSIZE,
1420	MPFROM2SHORT(us,
1421	ulPixels),
1422	NULL))
1423	{
1424	brc = FALSE;
1425	break;
1426	}
1427	}
1428	}
1429	}
1430
1431	// for the second loop, use second value set
1432	mpEveryOther = mpEveryOther2;
1433	ulPixels = ulPixels2;
1434	// we only loop twice
1435	} // end for (ulSet = 0; ulSet < 2;
1436
1437	return brc;
1438	}
1439
1440	/*
1441	*@@ winhReplaceWithCircularSlider:
1442	* this destroys the control with the ID ulID in hwndDlg
1443	* and creates a linear slider at the same position with the
1444	* same ID (effectively replacing it).
1445	*
1446	* This is needed because the IBM dialog editor (DLGEDIT.EXE)
1447	* cannot create circular sliders. So the way to do this
1448	* easily is to create some other control with DLGEDIT
1449	* where the slider should be later and call this function
1450	* on that control when the dialog is initialized.
1451	*
1452	* You need to specify the following with ulSliderStyle:
1453	* -- CSS_CIRCULARVALUE: draws a circular thumb, rather than a line,
1454	* for the value indicator.
1455	* -- CSS_MIDPOINT: makes the mid-point tick mark larger.
1456	* -- CSS_NOBUTTON: does not display value buttons. Per default, the
1457	* slider displays "-" and "+" buttons to the bottom left
1458	* and bottom right of the knob. (BTW, these bitmaps can be
1459	* changed using CSM_SETBITMAPDATA.)
1460	* -- CSS_NONUMBER: does not display the value on the dial.
1461	* -- CSS_NOTEXT: does not display title text under the dial.
1462	* Otherwise, the text in the pszTitle parameter
1463	* will be used.
1464	* -- CSS_NOTICKS (only listed in pmstddlg.h, not in PMREF):
1465	* obviously, this prevents tick marks from being drawn.
1466	* -- CSS_POINTSELECT: permits the values on the circular slider
1467	* to change immediately when dragged.
1468	* Direct manipulation is performed by using a mouse to
1469	* click on and drag the circular slider. There are two
1470	* modes of direct manipulation for the circular slider:
1471	* <BR><B>1)</B> The default direct manipulation mode is to scroll to
1472	* the value indicated by the position of the mouse.
1473	* This could be important if you used a circular slider
1474	* for a volume control, for example. Increasing the volume
1475	* from 0% to 100% too quickly could result in damage to
1476	* both the user's ears and the equipment.
1477	* <BR><B>2)</B>The other mode of direct manipulation permits
1478	* the value on the circular slider to change immediately when dragged.
1479	* This mode is enabled using the CSS_POINTSELECT style bit. When this
1480	* style is used, the value of the dial can be changed by tracking
1481	* the value with the mouse, which changes values quickly.
1482	* -- CSS_PROPORTIONALTICKS: allow the length of the tick marks to be calculated
1483	* as a percentage of the radius (for small sliders).
1484	* -- CSS_360: permits the scroll range to extend 360 degrees.
1485	* CSS_360 forces the CSS_NONUMBER style on. This is necessary
1486	* to keep the value indicator from corrupting the number value.
1487	*
1488	* FYI: The most commonly known circular slider in OS/2, the one in the
1489	* default "Sound" object, has a style of 0x9002018a, meaning
1490	* CSS_NOTEXT \| CSS_POINTSELECT \| CSS_NOTICKS.
1491	*
1492	* Notes: This function automatically adds WS_PARENTCLIP,
1493	* WS_TABSTOP, and WS_SYNCPAINT to the specified styles.
1494	* For the WS_TABSTOP style, hwndInsertAfter is important.
1495	* If you specify HWND_TOP, your window will be the first
1496	* in the tab stop list.
1497	*
1498	* It also shows the slider after having done all the
1499	* processing in here by calling WinShowWindow.
1500	*
1501	* This returns the HWND of the slider or NULLHANDLE upon
1502	* errors.
1503	*
1504	*@@added V0.9.0 [umoeller]
1505	*/
1506
1507	HWND winhReplaceWithCircularSlider(HWND hwndParent, // in: parent of old control and slider
1508	HWND hwndOwner, // in: owner of old control and slider
1509	HWND hwndInsertAfter, // in: the control after which the slider should
1510	// come up, or HWND_TOP, or HWND_BOTTOM
1511	ULONG ulID, // in: ID of old control and slider
1512	ULONG ulSliderStyle, // in: SLS_* styles
1513	SHORT sMin, // in: minimum value (e.g. 0)
1514	SHORT sMax, // in: maximum value (e.g. 100)
1515	USHORT usIncrement, // in: minimum increment (e.g. 1)
1516	USHORT usTicksEvery) // in: ticks ever x values (e.g. 20)
1517	{
1518	HWND hwndSlider = NULLHANDLE;
1519	HWND hwndKill = WinWindowFromID(hwndParent, ulID);
1520	if (hwndKill)
1521	{
1522	SWP swpControl;
1523	if (WinQueryWindowPos(hwndKill, &swpControl))
1524	{
1525	// destroy the old control
1526	WinDestroyWindow(hwndKill);
1527
1528	// WinRegisterCircularSlider();
1529
1530	// create a slider with the same ID at the same
1531	// position
1532	hwndSlider = WinCreateWindow(hwndParent,
1533	WC_CIRCULARSLIDER,
1534	"dummy", // no window text
1535	ulSliderStyle
1536	// \| WS_PARENTCLIP
1537	// \| WS_SYNCPAINT
1538	\| WS_TABSTOP,
1539	swpControl.x,
1540	swpControl.y,
1541	swpControl.cx,
1542	swpControl.cy,
1543	hwndOwner,
1544	hwndInsertAfter,
1545	ulID, // same ID as destroyed control
1546	NULL, // control data
1547	NULL); // presparams
1548
1549	if (hwndSlider)
1550	{
1551	// set slider range
1552	WinSendMsg(hwndSlider,
1553	CSM_SETRANGE,
1554	(MPARAM)(ULONG)sMin,
1555	(MPARAM)(ULONG)sMax);
1556
1557	// set slider increments
1558	WinSendMsg(hwndSlider,
1559	CSM_SETINCREMENT,
1560	(MPARAM)(ULONG)usIncrement,
1561	(MPARAM)(ULONG)usTicksEvery);
1562
1563	// set slider value
1564	WinSendMsg(hwndSlider,
1565	CSM_SETVALUE,
1566	(MPARAM)0,
1567	(MPARAM)0);
1568
1569	// for some reason, the slider always has
1570	// WS_CLIPSIBLINGS set, even though we don't
1571	// set this; we must unset this now, or
1572	// the slider won't draw itself (%&$&%"$&%!!!)
1573	WinSetWindowBits(hwndSlider,
1574	QWL_STYLE,
1575	0, // unset bit
1576	WS_CLIPSIBLINGS);
1577
1578	WinShowWindow(hwndSlider, TRUE);
1579	}
1580	}
1581	}
1582
1583	return hwndSlider;
1584	}
1585
1586	/*
1587	*@@category: Helpers\PM helpers\Spin button helpers
1588	*/
1589
1590	/* ******************************************************************
1591	*
1592	* Spin button helpers
1593	*
1594	********************************************************************/
1595
1596	/*
1597	*@@ winhSetDlgItemSpinData:
1598	* sets a spin button's limits and data within a dialog window.
1599	* This only works for decimal spin buttons.
1600	*/
1601
1602	VOID winhSetDlgItemSpinData(HWND hwndDlg, // in: dlg window
1603	ULONG idSpinButton, // in: item ID of spin button
1604	ULONG min, // in: minimum allowed value
1605	ULONG max, // in: maximum allowed value
1606	ULONG current) // in: new current value
1607	{
1608	HWND hwndSpinButton = WinWindowFromID(hwndDlg, idSpinButton);
1609	if (hwndSpinButton)
1610	{
1611	WinSendMsg(hwndSpinButton,
1612	SPBM_SETLIMITS, // Set limits message
1613	(MPARAM)max, // Spin Button maximum setting
1614	(MPARAM)min); // Spin Button minimum setting
1615
1616	WinSendMsg(hwndSpinButton,
1617	SPBM_SETCURRENTVALUE, // Set current value message
1618	(MPARAM)current,
1619	(MPARAM)NULL);
1620	}
1621	}
1622
1623	/*
1624	*@@ winhAdjustDlgItemSpinData:
1625	* this can be called on a spin button control to
1626	* have its current data snap to a grid. This only
1627	* works for LONG integer values.
1628	*
1629	* For example, if you specify 100 for the grid and call
1630	* this func after you have received SPBN_UP/DOWNARROW,
1631	* the spin button's value will always in/decrease
1632	* so that the spin button's value is a multiple of 100.
1633	*
1634	* By contrast, if (lGrid < 0), this will not really
1635	* snap the value to a multiple of -lGrid, but instead
1636	* in/decrease the value by -lGrid. The value will not
1637	* necessarily be a multiple of the grid. (0.9.14)
1638	*
1639	* This returns the "snapped" value to which the spin
1640	* button was set.
1641	*
1642	* If you specify lGrid == 0, this returns the spin
1643	* button's value only without snapping (V0.9.0).
1644	*
1645	*@@changed V0.9.0 [umoeller]: added check for lGrid == 0 (caused division by zero previously)
1646	*@@changed V0.9.14 (2001-08-03) [umoeller]: added fixes for age-old problems with wrap around
1647	*@@changed V0.9.14 (2001-08-03) [umoeller]: added lGrid < 0 mode
1648	*/
1649
1650	LONG winhAdjustDlgItemSpinData(HWND hwndDlg, // in: dlg window
1651	USHORT usItemID, // in: item ID of spin button
1652	LONG lGrid, // in: grid
1653	USHORT usNotifyCode) // in: SPBN_UP* or *DOWNARROW of WM_CONTROL message
1654	{
1655	HWND hwndSpin = WinWindowFromID(hwndDlg, usItemID);
1656	LONG lBottom, lTop, lValue;
1657
1658	// get value, which has already increased /
1659	// decreased by 1
1660	WinSendMsg(hwndSpin,
1661	SPBM_QUERYVALUE,
1662	(MPARAM)&lValue,
1663	MPFROM2SHORT(0, SPBQ_ALWAYSUPDATE));
1664
1665	if ((lGrid)
1666	&& ( (usNotifyCode == SPBN_UPARROW)
1667	\|\| (usNotifyCode == SPBN_DOWNARROW)
1668	)
1669	)
1670	{
1671	// only if the up/down buttons were pressed,
1672	// snap to the nearest grid; if the user
1673	// manually enters something (SPBN_CHANGE),
1674	// we'll accept that value
1675	LONG lChanged = (usNotifyCode == SPBN_UPARROW)
1676	// if the spin button went up, subtract 1
1677	? -1
1678	: +1;
1679	LONG lPrev = lValue + lChanged;
1680
1681	// if grid is negative, it is assumed to
1682	// not be a "real" grid but jump in those
1683	// steps only
1684	if (lGrid < 0)
1685	{
1686	// add /subtract grid
1687	if (usNotifyCode == SPBN_UPARROW)
1688	lValue = lPrev - lGrid;
1689	else
1690	lValue = lPrev + lGrid;
1691
1692	// lValue = (lValue / lGrid) * lGrid;
1693	}
1694	else
1695	{
1696	// add /subtract grid
1697	if (usNotifyCode == SPBN_UPARROW)
1698	lValue = lPrev + lGrid;
1699	else
1700	lValue = lPrev - lGrid;
1701
1702	lValue = (lValue / lGrid) * lGrid;
1703	}
1704
1705	// balance with spin button limits
1706	WinSendMsg(hwndSpin,
1707	SPBM_QUERYLIMITS,
1708	(MPARAM)&lTop,
1709	(MPARAM)&lBottom);
1710	if (lValue < lBottom)
1711	lValue = lTop;
1712	else if (lValue > lTop)
1713	lValue = lBottom;
1714
1715	WinSendMsg(hwndSpin,
1716	SPBM_SETCURRENTVALUE,
1717	(MPARAM)(lValue),
1718	MPNULL);
1719	}
1720	return lValue;
1721	}
1722
1723	/*
1724	*@@category: Helpers\PM helpers\List box helpers
1725	*/
1726
1727	/* ******************************************************************
1728	*
1729	* List box helpers
1730	*
1731	********************************************************************/
1732
1733	/*
1734	*@@ winhQueryLboxItemText:
1735	* returns the text of the specified
1736	* list box item in a newly allocated
1737	* buffer.
1738	*
1739	* Returns NULL on error. Use fre()
1740	* to free the return value.
1741	*
1742	*@@added V0.9.1 (99-12-14) [umoeller]
1743	*/
1744
1745	PSZ winhQueryLboxItemText(HWND hwndListbox,
1746	SHORT sIndex)
1747	{
1748	PSZ pszReturn = 0;
1749	SHORT cbText = SHORT1FROMMR(WinSendMsg(hwndListbox,
1750	LM_QUERYITEMTEXTLENGTH,
1751	(MPARAM)(ULONG)sIndex,
1752	0));
1753	if ((cbText) && (cbText != LIT_ERROR))
1754	{
1755	pszReturn = (PSZ)malloc(cbText + 1); // add zero terminator
1756	WinSendMsg(hwndListbox,
1757	LM_QUERYITEMTEXT,
1758	MPFROM2SHORT(sIndex,
1759	cbText + 1),
1760	(MPARAM)pszReturn);
1761	}
1762
1763	return pszReturn;
1764	}
1765
1766	/*
1767	*@@ winhMoveLboxItem:
1768	* this moves one list box item from one
1769	* list box to another, including the
1770	* item text and the item "handle"
1771	* (see LM_QUERYITEMHANDLE).
1772	*
1773	* sTargetIndex can either be a regular
1774	* item index or one of the following
1775	* (as in LM_INSERTITEM):
1776	* -- LIT_END
1777	* -- LIT_SORTASCENDING
1778	* -- LIT_SORTDESCENDING
1779	*
1780	* If (fSelectTarget == TRUE), the new
1781	* item is also selected in the target
1782	* list box.
1783	*
1784	* Returns FALSE if moving failed. In
1785	* that case, the list boxes are unchanged.
1786	*
1787	*@@added V0.9.1 (99-12-14) [umoeller]
1788	*/
1789
1790	BOOL winhMoveLboxItem(HWND hwndSource,
1791	SHORT sSourceIndex,
1792	HWND hwndTarget,
1793	SHORT sTargetIndex,
1794	BOOL fSelectTarget)
1795	{
1796	BOOL brc = FALSE;
1797
1798	PSZ pszItemText = winhQueryLboxItemText(hwndSource, sSourceIndex);
1799	if (pszItemText)
1800	{
1801	ULONG ulItemHandle = winhQueryLboxItemHandle(hwndSource,
1802	sSourceIndex);
1803	// probably 0, if not used
1804	LONG lTargetIndex = WinInsertLboxItem(hwndTarget,
1805	sTargetIndex,
1806	pszItemText);
1807	if ( (lTargetIndex != LIT_ERROR)
1808	&& (lTargetIndex != LIT_MEMERROR)
1809	)
1810	{
1811	// successfully inserted:
1812	winhSetLboxItemHandle(hwndTarget, lTargetIndex, ulItemHandle);
1813	if (fSelectTarget)
1814	winhSetLboxSelectedItem(hwndTarget, lTargetIndex, TRUE);
1815
1816	// remove source
1817	WinDeleteLboxItem(hwndSource,
1818	sSourceIndex);
1819
1820	brc = TRUE;
1821	}
1822
1823	free(pszItemText);
1824	}
1825
1826	return brc;
1827	}
1828
1829	/*
1830	*@@ winhLboxSelectAll:
1831	* this selects or deselects all items in the
1832	* given list box, depending on fSelect.
1833	*
1834	* Returns the number of items in the list box.
1835	*/
1836
1837	ULONG winhLboxSelectAll(HWND hwndListBox, // in: list box
1838	BOOL fSelect) // in: TRUE = select, FALSE = deselect
1839	{
1840	LONG lItemCount = WinQueryLboxCount(hwndListBox);
1841	ULONG ul;
1842
1843	for (ul = 0; ul < lItemCount; ul++)
1844	{
1845	WinSendMsg(hwndListBox,
1846	LM_SELECTITEM,
1847	(MPARAM)ul, // index
1848	(MPARAM)fSelect);
1849	}
1850
1851	return lItemCount;
1852	}
1853
1854	/*
1855	*@@ winhLboxFindItemFromHandle:
1856	* finds the list box item with the specified
1857	* handle.
1858	*
1859	* Of course this only makes sense if each item
1860	* has a unique handle indeed.
1861	*
1862	* Returns the index of the item found or -1.
1863	*
1864	*@@added V0.9.12 (2001-05-18) [umoeller]
1865	*/
1866
1867	ULONG winhLboxFindItemFromHandle(HWND hwndListBox,
1868	ULONG ulHandle)
1869	{
1870	LONG cItems;
1871	if (cItems = WinQueryLboxCount(hwndListBox))
1872	{
1873	ULONG ul;
1874	for (ul = 0;
1875	ul < cItems;
1876	ul++)
1877	{
1878	if (ulHandle == winhQueryLboxItemHandle(hwndListBox,
1879	ul))
1880	return ul;
1881	}
1882	}
1883
1884	return -1;
1885	}
1886
1887	/*
1888	*@@category: Helpers\PM helpers\Scroll bar helpers
1889	*/
1890
1891	/* ******************************************************************
1892	*
1893	* Scroll bar helpers
1894	*
1895	********************************************************************/
1896
1897	/*
1898	*@@ winhUpdateScrollBar:
1899	* updates the given scroll bar according to the given
1900	* values. This updates the scroll bar's thumb size,
1901	* extension, and position, all in one shot.
1902	*
1903	* This function usually gets called when the window is
1904	* created and later when the window is resized.
1905	*
1906	* This simplifies the typical functionality of a scroll
1907	* bar in a client window which is to be scrolled. I am
1908	* wondering why IBM never included such a function, since
1909	* it is so damn basic and still writing it cost me a whole
1910	* day.
1911	*
1912	* Terminology:
1913	*
1914	* -- "window": the actual window with scroll bars which displays
1915	* a subrectangle of the available data. With a typical PM
1916	* application, this will be your client window.
1917	*
1918	* The width or height of this must be passed in ulWinPels.
1919	*
1920	* -- "workarea": the entire data to be displayed, of which the
1921	* "window" can only display a subrectangle, if the workarea
1922	* is larger than the window.
1923	*
1924	* The width or height of this must be passed in ulWorkareaPels.
1925	* This can be smaller than ulWinPels (if the window is larger
1926	* than the data) or the same or larger than ulWinPels
1927	* (if the window is too small to show all the data).
1928	*
1929	* This value is exclusive in the sense that the maximum
1930	* window offset (below) can be the workarea minus one.
1931	*
1932	* -- "window offset": the zero-based offset of the current
1933	* window within the workarea, whose maximum value is
1934	* the workarea minus one.
1935	*
1936	* For horizontal scroll bars, this is the X coordinate,
1937	* counting from the left of the window (0 means leftmost).
1938	*
1939	* For vertical scroll bars, this is counted from the _top_
1940	* of the workarea (0 means topmost, as opposed to OS/2
1941	* window coordinates!). This is because for vertical scroll
1942	* bars controls, higher values move the thumb _down_. Yes
1943	* indeed, this conflicts with PM's coordinate system.
1944	*
1945	* The window offset is therefore always positive.
1946	*
1947	* The scroll bar gets disabled if the entire workarea is visible,
1948	* that is, if ulWorkareaPels <= ulWinPels. In that case
1949	* FALSE is returned. If (fAutoHide == TRUE), the scroll
1950	* bar is not only disabled, but also hidden from the display.
1951	* In that case, you will need to reformat your output because
1952	* your workarea becomes larger without the scroll bar.
1953	*
1954	* This function will set the range of the scroll bar to 0 up
1955	* to a value depending on the workarea size. For vertical scroll
1956	* bars, 0 means topmost (which is kinda sick with the OS/2
1957	* coordinate system), for horizontal scroll bars, 0 means leftmost.
1958	*
1959	* The maximum value of the scroll bar will be
1960	*
1961	+ (ulWorkareaPels - ulWinPels) / usScrollUnitPels
1962	*
1963	* The thumb size of the scroll bar will also be adjusted
1964	* based on the workarea and window size, as it should be.
1965	*
1966	*@@added V0.9.1 (2000-02-14) [umoeller]
1967	*@@changed V0.9.3 (2000-04-30) [umoeller]: fixed pels/unit confusion
1968	*@@changed V0.9.3 (2000-05-08) [umoeller]: now handling scroll units automatically
1969	*@@changed V1.0.1 (2003-01-25) [umoeller]: fixed max value which caused right/bottommost scroll button to never be disabled
1970	*@@changed V1.0.1 (2003-01-25) [umoeller]: fixed bad thumb position for large offsets
1971	*/
1972
1973	BOOL winhUpdateScrollBar(HWND hwndScrollBar, // in: scroll bar (vertical or horizontal)
1974	ULONG ulWinPels, // in: vertical or horizontal dimension of
1975	// visible window part (in pixels),
1976	// excluding the scroll bar!
1977	ULONG ulWorkareaPels, // in: dimension of total data part, of
1978	// which ulWinPels is a sub-dimension
1979	// (in pixels);
1980	// if <= ulWinPels, the scrollbar will be
1981	// disabled
1982	ULONG ulCurPelsOfs, // in: current offset of visible part
1983	// (in pixels)
1984	BOOL fAutoHide) // in: hide scroll bar if disabled
1985	{
1986	BOOL brc = FALSE;
1987
1988	if (ulWorkareaPels >= ulWinPels)
1989	{
1990	// for large workareas, adjust scroll bar units
1991	USHORT usDivisor = 1;
1992	USHORT lMaxAllowedUnitOfs;
1993
1994	if (ulWorkareaPels > 10000)
1995	usDivisor = 100;
1996
1997	// scrollbar needed:
1998
1999	// workarea is larger than window:
2000	WinEnableWindow(hwndScrollBar, TRUE);
2001	if (fAutoHide)
2002	WinShowWindow(hwndScrollBar, TRUE);
2003
2004	// calculate limit
2005	lMaxAllowedUnitOfs = (ulWorkareaPels - ulWinPels)
2006	/ usDivisor;
2007
2008	// set thumb position and limit
2009	WinSendMsg(hwndScrollBar,
2010	SBM_SETSCROLLBAR,
2011	(MPARAM)(ulCurPelsOfs / usDivisor), // position: 0 means top
2012	MPFROM2SHORT(0, // minimum
2013	lMaxAllowedUnitOfs)); // maximum
2014
2015	// set thumb size based on ulWinPels and
2016	// ulWorkareaPels
2017	WinSendMsg(hwndScrollBar,
2018	SBM_SETTHUMBSIZE,
2019	MPFROM2SHORT( ulWinPels / usDivisor, // visible
2020	ulWorkareaPels / usDivisor), // total
2021	0);
2022	brc = TRUE;
2023	}
2024	else
2025	{
2026	// entire workarea is visible:
2027	WinEnableWindow(hwndScrollBar, FALSE);
2028	if (fAutoHide)
2029	WinShowWindow(hwndScrollBar, FALSE);
2030	}
2031
2032	// _Pmpf(("End of winhUpdateScrollBar"));
2033
2034	return brc;
2035	}
2036
2037	/*
2038	*@@ winhHandleScrollMsg:
2039	* this helper handles a WM_VSCROLL or WM_HSCROLL message
2040	* posted to a client window when the user has worked on a
2041	* client scroll bar. Calling this function is all you need to
2042	* do to handle those two messages.
2043	*
2044	* This is most useful in conjunction with winhUpdateScrollBar.
2045	* See that function for the terminology also.
2046	*
2047	* This function calculates the new scrollbar position (from
2048	* the mp2 value, which can be line up/down, page up/down, or
2049	* slider track) and calculates the scrolling offset
2050	* accordingly, which is returned as a LONG.
2051	*
2052	* This function assumes that the scrollbar operates
2053	* on values starting from zero. The maximum value
2054	* of the scroll bar is therefore
2055	*
2056	+ lWorkareaPels - (prcl2Scroll->yTop - prcl2Scroll->yBottom)
2057	*
2058	* This function also automatically shrinks the scroll bar
2059	* units, should you have a workarea size which doesn't fit
2060	* into the SHORT's that the scroll bar uses internally. As
2061	* a result, this function handles a the complete range of
2062	* a LONG for the workarea. (The PM scroll bar implementation
2063	* is really brain-dead in this respect... the workarea can
2064	* easily be larger than 32768 pixels. That's what scroll bars
2065	* are for in the first place, dammit.)
2066	*
2067	* Replace "bottom" and "top" with "right" and "left" for
2068	* horizontal scrollbars in the above formula.
2069	*
2070	* Returns the amount of pixels to be passed to winhScrollWindow
2071	* afterwards.
2072	*
2073	*@@added V0.9.1 (2000-02-13) [umoeller]
2074	*@@changed V0.9.3 (2000-04-30) [umoeller]: changed prototype, fixed pels/unit confusion
2075	*@@changed V0.9.3 (2000-05-08) [umoeller]: now handling scroll units automatically
2076	*@@changed V0.9.7 (2001-01-17) [umoeller]: changed PLONG to PULONG
2077	*@@changed V1.0.1 (2003-01-25) [umoeller]: changed prototype, no longer calling WinScrollWindow, fixed offset bugs
2078	*/
2079
2080	LONG winhHandleScrollMsg(HWND hwndScrollBar, // in: vertical or horizontal scroll bar window
2081	PLONG plCurPelsOfs, // in/out: current workarea offset (in window coordinates)
2082	LONG lWindowPels, // in: window cx or cy (in window coordinates)
2083	LONG lWorkareaPels, // in: total workarea dimension,
2084	// into which *plCurPelsOfs is an offset
2085	USHORT usLineStepPels, // in: pixels to scroll line-wise
2086	// (scroll bar buttons pressed)
2087	ULONG msg, // in: either WM_VSCROLL or WM_HSCROLL
2088	MPARAM mp2) // in: complete mp2 of WM_VSCROLL/WM_HSCROLL;
2089	// this has two SHORT's (usPos and usCmd),
2090	// see PMREF for details
2091	{
2092	LONG lOldPelsOfs = *plCurPelsOfs;
2093	USHORT usPosUnits = SHORT1FROMMP(mp2), // in scroll units
2094	usCmd = SHORT2FROMMP(mp2);
2095	LONG lLimitPels;
2096
2097	// for large workareas, adjust scroll bar units
2098	LONG lScrollUnitPels = 1;
2099	if (lWorkareaPels > 10000)
2100	lScrollUnitPels = 100;
2101
2102	switch (usCmd)
2103	{
2104	case SB_LINEUP:
2105	*plCurPelsOfs -= usLineStepPels;
2106	break;
2107
2108	case SB_LINEDOWN:
2109	*plCurPelsOfs += usLineStepPels;
2110	break;
2111
2112	case SB_PAGEUP:
2113	*plCurPelsOfs -= lWindowPels;
2114	break;
2115
2116	case SB_PAGEDOWN:
2117	*plCurPelsOfs += lWindowPels;
2118	break;
2119
2120	case SB_SLIDERTRACK:
2121	plCurPelsOfs = (LONG)usPosUnits lScrollUnitPels;
2122	break;
2123
2124	case SB_SLIDERPOSITION:
2125	plCurPelsOfs = (LONG)usPosUnits lScrollUnitPels;
2126	break;
2127	}
2128
2129	// calc max scroll offset:
2130	// if we have a viewport of 200 and the window size is 199,
2131	// we can have scroll values of 0 or 1
2132	lLimitPels = lWorkareaPels - lWindowPels;
2133
2134	// now delimit
2135	if (*plCurPelsOfs < 0)
2136	*plCurPelsOfs = 0;
2137	else if (*plCurPelsOfs > lLimitPels)
2138	*plCurPelsOfs = lLimitPels;
2139
2140	if ( (*plCurPelsOfs != lOldPelsOfs)
2141	\|\| (*plCurPelsOfs == 0)
2142	\|\| (*plCurPelsOfs == lLimitPels)
2143	)
2144	{
2145	// changed:
2146	WinSendMsg(hwndScrollBar,
2147	SBM_SETPOS,
2148	(MPARAM)(*plCurPelsOfs / lScrollUnitPels),
2149	0);
2150
2151	if (msg == WM_VSCROLL)
2152	return (*plCurPelsOfs - lOldPelsOfs);
2153
2154	return -(*plCurPelsOfs - lOldPelsOfs);
2155	}
2156
2157	return 0;
2158	}
2159
2160	/*
2161	*@@ winhScrollWindow:
2162	*
2163	*@@added V1.0.1 (2003-01-17) [umoeller]
2164	*/
2165
2166	BOOL winhScrollWindow(HWND hwnd2Scroll,
2167	PRECTL prclClip, // clipping rectangle or NULL
2168	PPOINTL pptlScroll)
2169	{
2170	return !!WinScrollWindow(hwnd2Scroll,
2171	pptlScroll->x,
2172	pptlScroll->y,
2173	prclClip,
2174	prclClip,
2175	NULLHANDLE, // no region
2176	NULL, // no rect
2177	SW_INVALIDATERGN);
2178	}
2179
2180	/*
2181	*@@ winhProcessScrollChars2:
2182	* helper for processing WM_CHAR messages for
2183	* client windows with scroll bars.
2184	*
2185	* If your window has scroll bars, you normally
2186	* need to process a number of keystrokes to be
2187	* able to scroll the window contents. This is
2188	* tiresome to code, so here is a helper.
2189	*
2190	* When receiving WM_CHAR, call this function.
2191	* If this returns TRUE, the keystroke has been
2192	* a scroll keystroke, and the window has been
2193	* updated (by sending WM_VSCROLL or WM_HSCROLL
2194	* to hwndClient). Otherwise, you should process
2195	* the keystroke as usual because it's not a
2196	* scroll keystroke.
2197	*
2198	* The following keystrokes are processed here:
2199	*
2200	* -- "cursor up, down, right, left": scroll one
2201	* line in the proper direction.
2202	* -- "page up, down": scroll one page up or down.
2203	* -- "Home": scroll leftmost.
2204	* -- "Ctrl+ Home": scroll topmost.
2205	* -- "End": scroll rightmost.
2206	* -- "Ctrl+ End": scroll bottommost.
2207	* -- "Ctrl + page up, down": scroll one screen left or right.
2208	*
2209	* This is CUA behavior, if anyone still cares about that.
2210	*
2211	* Returns TRUE if the message has been processed.
2212	*
2213	*@@added V0.9.3 (2000-04-29) [umoeller]
2214	*@@changed V0.9.9 (2001-02-01) [lafaix]: Ctrl+PgUp/Dn now do one screen left/right
2215	*/
2216
2217	BOOL winhProcessScrollChars2(HWND hwndClient, // in: client window
2218	const SCROLLABLEWINDOW *pscrw, // in: scroller data
2219	MPARAM mp1, // in: WM_CHAR mp1
2220	MPARAM mp2) // in: WM_CHAR mp2
2221	{
2222	BOOL fProcessed = FALSE;
2223	USHORT usFlags = SHORT1FROMMP(mp1);
2224	USHORT usvk = SHORT2FROMMP(mp2);
2225
2226	if (usFlags & KC_VIRTUALKEY)
2227	{
2228	ULONG ulMsg = 0;
2229	SHORT sPos = 0;
2230	SHORT usCmd = 0;
2231	fProcessed = TRUE;
2232
2233	switch (usvk)
2234	{
2235	case VK_UP:
2236	ulMsg = WM_VSCROLL;
2237	usCmd = SB_LINEUP;
2238	break;
2239
2240	case VK_DOWN:
2241	ulMsg = WM_VSCROLL;
2242	usCmd = SB_LINEDOWN;
2243	break;
2244
2245	case VK_RIGHT:
2246	ulMsg = WM_HSCROLL;
2247	usCmd = SB_LINERIGHT;
2248	break;
2249
2250	case VK_LEFT:
2251	ulMsg = WM_HSCROLL;
2252	usCmd = SB_LINELEFT;
2253	break;
2254
2255	case VK_PAGEUP:
2256	if (usFlags & KC_CTRL)
2257	ulMsg = WM_HSCROLL;
2258	else
2259	ulMsg = WM_VSCROLL;
2260	usCmd = SB_PAGEUP;
2261	break;
2262
2263	case VK_PAGEDOWN:
2264	if (usFlags & KC_CTRL)
2265	ulMsg = WM_HSCROLL;
2266	else
2267	ulMsg = WM_VSCROLL;
2268	usCmd = SB_PAGEDOWN;
2269	break;
2270
2271	case VK_HOME:
2272	if (usFlags & KC_CTRL)
2273	// vertical:
2274	ulMsg = WM_VSCROLL;
2275	else
2276	ulMsg = WM_HSCROLL;
2277
2278	sPos = 0;
2279	usCmd = SB_SLIDERPOSITION;
2280	break;
2281
2282	case VK_END:
2283	if (usFlags & KC_CTRL)
2284	{
2285	// vertical:
2286	ulMsg = WM_VSCROLL;
2287	sPos = pscrw->szlWorkarea.cy;
2288	}
2289	else
2290	{
2291	ulMsg = WM_HSCROLL;
2292	sPos = pscrw->szlWorkarea.cx;
2293	}
2294
2295	usCmd = SB_SLIDERPOSITION;
2296	break;
2297
2298	default:
2299	// other:
2300	fProcessed = FALSE;
2301	}
2302
2303	if ( ((usFlags & KC_KEYUP) == 0)
2304	&& (ulMsg)
2305	)
2306	{
2307	HWND hwndScrollBar = ((ulMsg == WM_VSCROLL)
2308	? pscrw->hwndVScroll
2309	: pscrw->hwndHScroll);
2310	if (WinIsWindowEnabled(hwndScrollBar))
2311	{
2312	USHORT usID = WinQueryWindowUShort(hwndScrollBar,
2313	QWS_ID);
2314	WinSendMsg(hwndClient,
2315	ulMsg,
2316	MPFROMSHORT(usID),
2317	MPFROM2SHORT(sPos,
2318	usCmd));
2319	}
2320	}
2321	}
2322
2323	return fProcessed;
2324	}
2325
2326	/*
2327	*@@ winhProcessScrollChars:
2328	* wrapper around winhProcessScrollChars2 for prototype
2329	* compatibility.
2330	*
2331	*@@added V1.0.1 (2003-01-25) [umoeller]
2332	*/
2333
2334	BOOL winhProcessScrollChars(HWND hwndClient, // in: client window
2335	HWND hwndVScroll, // in: vertical scroll bar
2336	HWND hwndHScroll, // in: horizontal scroll bar
2337	MPARAM mp1, // in: WM_CHAR mp1
2338	MPARAM mp2, // in: WM_CHAR mp2
2339	ULONG ulVertMax, // in: maximum workarea cy
2340	ULONG ulHorzMax) // in: maximum workarea cx
2341	{
2342	SCROLLABLEWINDOW scrw;
2343
2344	scrw.hwndVScroll = hwndVScroll;
2345	scrw.hwndHScroll = hwndHScroll;
2346	scrw.szlWorkarea.cx = ulHorzMax;
2347	scrw.szlWorkarea.cy = ulVertMax;
2348
2349	return winhProcessScrollChars2(hwndClient,
2350	&scrw,
2351	mp1,
2352	mp2);
2353	}
2354
2355	/*
2356	*@@ winhCreateScrollBars:
2357	* creates two scroll bars with an arbitrary
2358	* position for later use with winhUpdateScrollBar.
2359	*
2360	*@@added V1.0.1 (2003-01-25) [umoeller]
2361	*/
2362
2363	BOOL XWPENTRY winhCreateScroller(HWND hwndParent, // in: parent and owner of scroll bars
2364	PSCROLLABLEWINDOW pscrw, // out: scroller data
2365	ULONG idVScroll, // in: window ID of vertical scroll bar
2366	ULONG idHScroll) // in: window ID of horizontal scroll bar
2367	{
2368	SBCDATA sbcd;
2369	sbcd.cb = sizeof(SBCDATA);
2370	sbcd.sHilite = 0;
2371	sbcd.posFirst = 0;
2372	sbcd.posLast = 100;
2373	sbcd.posThumb = 30;
2374	sbcd.cVisible = 50;
2375	sbcd.cTotal = 50;
2376
2377	pscrw->cxScrollBar = WinQuerySysValue(HWND_DESKTOP, SV_CXVSCROLL);
2378	pscrw->cyScrollBar = WinQuerySysValue(HWND_DESKTOP, SV_CYHSCROLL);
2379
2380	pscrw->idVScroll = idVScroll;
2381	pscrw->idHScroll = idHScroll;
2382
2383	pscrw->szlWorkarea.cx
2384	= pscrw->szlWorkarea.cy
2385	= pscrw->ptlScrollOfs.x
2386	= pscrw->ptlScrollOfs.y
2387	= 0;
2388
2389	return ( (pscrw->hwndVScroll = WinCreateWindow(hwndParent,
2390	WC_SCROLLBAR,
2391	"",
2392	SBS_VERT \| SBS_THUMBSIZE \| WS_VISIBLE,
2393	10, 10,
2394	20, 100,
2395	hwndParent, // owner
2396	HWND_TOP,
2397	idVScroll,
2398	&sbcd,
2399	0))
2400	&& (pscrw->hwndHScroll = WinCreateWindow(hwndParent,
2401	WC_SCROLLBAR,
2402	"",
2403	SBS_THUMBSIZE \| WS_VISIBLE,
2404	10, 10,
2405	20, 100,
2406	hwndParent, // owner
2407	HWND_TOP,
2408	idHScroll,
2409	&sbcd,
2410	0))
2411	);
2412	}
2413
2414	/*
2415	*@@ winhHandleScrollerMsgs:
2416	* unified function that you can simply call for all of
2417	* the WM_HSCROLL, WM_VSCROLL, and WM_CHAR messages to
2418	* get full automatic scrolling support for window
2419	* messages.
2420	*
2421	* This calls winhHandleScrollMsg, winhScrollWindow,
2422	* and winhProcessScrollChars in turn as appropriate.
2423	*
2424	* However, you still need to call winhUpdateScrollBar
2425	* for each scroll bar whenever either the workarea or
2426	* window size changes.
2427	*
2428	* See winhUpdateScrollBar for the terminology.
2429	*
2430	* The size of the workarea must be passed in with
2431	* pscrw, as well as the window and scrollbar handles.
2432	* By contrast, the current window size must be passed
2433	* in via the pszlWin parameter. This allows for cooperation
2434	* with the ctlDefWindowProc funcs, which have their own
2435	* fields for this in DEFWINDOWDATA so we won't duplicate.
2436	*
2437	* Preconditions:
2438	*
2439	* -- hwnd2Scroll (the "client") and the scroll bar windows
2440	* must be siblings presently. In other words, scrolling
2441	* won't work correctly if the scroll bars are children
2442	* of the client because we do not presently handle
2443	* passing a clipping rectangle to WinScrollWindow here.
2444	*
2445	*@@added V1.0.1 (2003-01-25) [umoeller]
2446	*/
2447
2448	MRESULT winhHandleScrollerMsgs(HWND hwnd2Scroll, // in: "client" window
2449	PSCROLLABLEWINDOW pscrw, // in: scroller data
2450	PSIZEL pszlWin,
2451	ULONG msg,
2452	MPARAM mp1,
2453	MPARAM mp2)
2454	{
2455	MRESULT mrc = 0;
2456	POINTL ptlScroll = {0, 0};
2457
2458	switch (msg)
2459	{
2460	case WM_VSCROLL:
2461	if (ptlScroll.y = winhHandleScrollMsg(pscrw->hwndVScroll,
2462	&pscrw->ptlScrollOfs.y,
2463	pszlWin->cy,
2464	pscrw->szlWorkarea.cy,
2465	10,
2466	msg,
2467	mp2))
2468	winhScrollWindow(hwnd2Scroll,
2469	NULL,
2470	&ptlScroll);
2471	break;
2472
2473	case WM_HSCROLL:
2474	if (ptlScroll.x = winhHandleScrollMsg(pscrw->hwndHScroll,
2475	&pscrw->ptlScrollOfs.x,
2476	pszlWin->cx,
2477	pscrw->szlWorkarea.cx,
2478	10,
2479	msg,
2480	mp2))
2481	winhScrollWindow(hwnd2Scroll,
2482	NULL,
2483	&ptlScroll);
2484	break;
2485
2486	case WM_CHAR:
2487	mrc = (MRESULT)winhProcessScrollChars(hwnd2Scroll,
2488	pscrw->hwndVScroll,
2489	pscrw->hwndHScroll,
2490	mp1,
2491	mp2,
2492	pscrw->szlWorkarea.cy,
2493	pscrw->szlWorkarea.cx);
2494	break;
2495	}
2496
2497	return mrc;
2498	}
2499
2500	/*
2501	*@@category: Helpers\PM helpers\Window positioning
2502	*/
2503
2504	/* ******************************************************************
2505	*
2506	* Window positioning helpers
2507	*
2508	********************************************************************/
2509
2510	/*
2511	*@@ winhSaveWindowPos:
2512	* saves the position of a certain window. As opposed
2513	* to the barely documented WinStoreWindowPos API, this
2514	* one only saves one regular SWP structure for the given
2515	* window, as returned by WinQueryWindowPos for hwnd.
2516	*
2517	* If the window is currently maximized or minimized,
2518	* we won't store the current window size and position
2519	* (which wouldn't make much sense), but retrieve the
2520	* "restored" window position from the window words
2521	* instead.
2522	*
2523	* The window should still be visible on the screen
2524	* when calling this function. Do not call it in WM_DESTROY,
2525	* because then the SWP data is no longer valid.
2526	*
2527	* This returns TRUE if saving was successful.
2528	*
2529	*@@changed V0.9.1 (99-12-19) [umoeller]: added minimize/maximize support
2530	*/
2531
2532	BOOL winhSaveWindowPos(HWND hwnd, // in: window to save
2533	HINI hIni, // in: INI file (or HINI_USER/SYSTEM)
2534	const char *pcszApp, // in: INI application name
2535	const char *pcszKey) // in: INI key name
2536	{
2537	BOOL brc = FALSE;
2538	SWP swp;
2539	if (WinQueryWindowPos(hwnd, &swp))
2540	{
2541	if (swp.fl & (SWP_MAXIMIZE \| SWP_MINIMIZE))
2542	{
2543	// window currently maximized or minimized:
2544	// retrieve "restore" position from window words
2545	swp.x = WinQueryWindowUShort(hwnd, QWS_XRESTORE);
2546	swp.y = WinQueryWindowUShort(hwnd, QWS_YRESTORE);
2547	swp.cx = WinQueryWindowUShort(hwnd, QWS_CXRESTORE);
2548	swp.cy = WinQueryWindowUShort(hwnd, QWS_CYRESTORE);
2549	}
2550
2551	brc = PrfWriteProfileData(hIni, (PSZ)pcszApp, (PSZ)pcszKey, &swp, sizeof(swp));
2552	}
2553	return brc;
2554	}
2555
2556	/*
2557	*@@ winhRestoreWindowPos:
2558	* this will retrieve a window position which was
2559	* previously stored using winhSaveWindowPos.
2560	*
2561	* The window should not be visible to avoid flickering.
2562	* "fl" must contain the SWP_flags as in WinSetWindowPos.
2563	*
2564	* Note that only the following may be used:
2565	* -- SWP_MOVE reposition the window
2566	* -- SWP_SIZE also resize the window to
2567	* the stored position; this might
2568	* lead to problems with different
2569	* video resolutions, so be careful.
2570	* -- SWP_SHOW make window visible too
2571	* -- SWP_NOREDRAW changes are not redrawn
2572	* -- SWP_NOADJUST do not send a WM_ADJUSTWINDOWPOS message
2573	* before moving or sizing
2574	* -- SWP_ACTIVATE activate window (make topmost)
2575	* -- SWP_DEACTIVATE deactivate window (make bottommost)
2576	*
2577	* Do not specify any other SWP_* flags.
2578	*
2579	* If SWP_SIZE is not set, the window will be moved only.
2580	*
2581	* This returns TRUE if INI data was found.
2582	*
2583	* This function automatically checks for whether the
2584	* window would be positioned outside the visible screen
2585	* area and will adjust coordinates accordingly. This can
2586	* happen when changing video resolutions.
2587	*
2588	*@@changed V0.9.7 (2000-12-20) [umoeller]: fixed invalid params if INI key not found
2589	*/
2590
2591	BOOL winhRestoreWindowPos(HWND hwnd, // in: window to restore
2592	HINI hIni, // in: INI file (or HINI_USER/SYSTEM)
2593	const char *pcszApp, // in: INI application name
2594	const char *pcszKey, // in: INI key name
2595	ULONG fl) // in: "fl" parameter for WinSetWindowPos
2596	{
2597	BOOL brc = FALSE;
2598	SWP swp;
2599	ULONG cbswp = sizeof(swp);
2600	ULONG fl2 = (fl & ~SWP_ZORDER);
2601
2602	if (PrfQueryProfileData(hIni, (PSZ)pcszApp, (PSZ)pcszKey, &swp, &cbswp))
2603	{
2604	ULONG ulScreenCX = WinQuerySysValue(HWND_DESKTOP, SV_CXSCREEN);
2605	ULONG ulScreenCY = WinQuerySysValue(HWND_DESKTOP, SV_CYSCREEN);
2606
2607	brc = TRUE;
2608
2609	if ((fl & SWP_SIZE) == 0)
2610	{
2611	// if no resize, we need to get the current position
2612	SWP swpNow;
2613	brc = WinQueryWindowPos(hwnd, &swpNow);
2614	swp.cx = swpNow.cx;
2615	swp.cy = swpNow.cy;
2616	}
2617
2618	if (brc)
2619	{
2620	// check for full visibility
2621	if ( (swp.x + swp.cx) > ulScreenCX)
2622	swp.x = ulScreenCX - swp.cx;
2623	if ( (swp.y + swp.cy) > ulScreenCY)
2624	swp.y = ulScreenCY - swp.cy;
2625	}
2626
2627	brc = TRUE;
2628
2629	}
2630	else
2631	{
2632	// window pos not found in INI: unset SWP_MOVE etc.
2633	WinQueryWindowPos(hwnd, &swp);
2634	fl2 &= ~(SWP_MOVE \| SWP_SIZE);
2635	}
2636
2637	WinSetWindowPos(hwnd,
2638	NULLHANDLE, // insert-behind window
2639	swp.x,
2640	swp.y,
2641	swp.cx,
2642	swp.cy,
2643	fl2); // SWP_* flags
2644
2645	return brc;
2646	}
2647
2648	/*
2649	*@@ winhAdjustControls:
2650	* helper function for dynamically adjusting a window's
2651	* controls when the window is resized.
2652	*
2653	* This is most useful with dialogs loaded from resources
2654	* which should be sizeable. Normally, when the dialog
2655	* frame is resized, the controls stick to their positions,
2656	* and for dialogs with many controls, programming the
2657	* changes can be tiresome.
2658	*
2659	* Enter this function. ;-) Basically, this takes a
2660	* static array of MPARAM's as input (plus one dynamic
2661	* storage area for the window positions).
2662	*
2663	* This function must get called in three contexts:
2664	* during WM_INITDLG, during WM_WINDOWPOSCHANGED, and
2665	* during WM_DESTROY, with varying parameters.
2666	*
2667	* In detail, there are four things you need to do to make
2668	* this work:
2669	*
2670	* 1) Set up a static array (as a global variable) of
2671	* MPARAM's, one for each control in your array.
2672	* Each MPARAM will have the control's ID and the
2673	* XAC_* flags (winh.h) how the control shall be moved.
2674	* Use MPFROM2SHORT to easily create this. Example:
2675	*
2676	+ MPARAM ampControlFlags[] =
2677	+ { MPFROM2SHORT(ID_CONTROL_1, XAC_MOVEX),
2678	+ MPFROM2SHORT(ID_CONTROL_2, XAC_SIZEY),
2679	+ ...
2680	+ }
2681	*
2682	* This can safely be declared as a global variable
2683	* because this data will only be read and never
2684	* changed by this function.
2685	*
2686	* 2) In WM_INITDLG of your dialog function, set up
2687	* an XADJUSTCTRLS structure, preferrably in your
2688	* window words (QWL_USER).
2689	*
2690	* ZERO THAT STRUCTURE (memset(&xac, 0, sizeof(XADJUSTCTRLS),
2691	* or this func will not work (because it will intialize
2692	* things on the first WM_WINDOWPOSCHANGED).
2693	*
2694	* 3) Intercept WM_WINDOWPOSCHANGED:
2695	*
2696	+ case WM_WINDOWPOSCHANGED:
2697	+ {
2698	+ // this msg is passed two SWP structs:
2699	+ // one for the old, one for the new data
2700	+ // (from PM docs)
2701	+ PSWP pswpNew = PVOIDFROMMP(mp1);
2702	+ PSWP pswpOld = pswpNew + 1;
2703	+
2704	+ // resizing?
2705	+ if (pswpNew->fl & SWP_SIZE)
2706	+ {
2707	+ PXADJUSTCTRLS pxac = ... // get it from your window words
2708	+
2709	+ winhAdjustControls(hwndDlg, // dialog
2710	+ ampControlFlags, // MPARAMs array
2711	+ sizeof(ampControlFlags) / sizeof(MPARAM),
2712	+ // items count
2713	+ pswpNew, // mp1
2714	+ pxac); // storage area
2715	+ }
2716	+ mrc = WinDefDlgProc(hwnd, msg, mp1, mp2); ...
2717	*
2718	* 4) In WM_DESTROY, call this function again with pmpFlags,
2719	* pswpNew, and pswpNew set to NULL. This will clean up the
2720	* data which has been allocated internally (pointed to from
2721	* the XADJUSTCTRLS structure).
2722	* Don't forget to free your storage for XADJUSTCTLRS
2723	* _itself_, that's the job of the caller.
2724	*
2725	* This might sound complicated, but it's a lot easier than
2726	* having to write dozens of WinSetWindowPos calls oneself.
2727	*
2728	*@@added V0.9.0 [umoeller]
2729	*@@changed V0.9.19 (2002-04-13) [umoeller]: added correlation for entry field repositioning, this was always off
2730	*/
2731
2732	BOOL winhAdjustControls(HWND hwndDlg, // in: dialog (req.)
2733	const MPARAM *pmpFlags, // in: init flags or NULL for cleanup
2734	ULONG ulCount, // in: item count (req.)
2735	PSWP pswpNew, // in: pswpNew from WM_WINDOWPOSCHANGED or NULL for cleanup
2736	PXADJUSTCTRLS pxac) // in: adjust-controls storage area (req.)
2737	{
2738	BOOL brc = FALSE;
2739	ULONG ul = 0;
2740
2741	if ((pmpFlags) && (pxac))
2742	{
2743	PSWP pswpThis;
2744	const MPARAM *pmpThis;
2745	LONG ldcx, ldcy;
2746	ULONG cWindows = 0;
2747
2748	// V0.9.19 (2002-04-13) [umoeller]
2749	LONG cxMarginEF = 3 * WinQuerySysValue(HWND_DESKTOP, SV_CXBORDER);
2750	LONG cyMarginEF = 3 * WinQuerySysValue(HWND_DESKTOP, SV_CYBORDER);
2751
2752	// setup mode:
2753	if (pxac->fInitialized == FALSE)
2754	{
2755	// first call: get all the SWP's
2756	WinQueryWindowPos(hwndDlg, &pxac->swpMain);
2757	// _Pmpf(("winhAdjustControls: queried main cx = %d, cy = %d",
2758	// pxac->swpMain.cx, pxac->swpMain.cy));
2759
2760	pxac->paswp = (PSWP)malloc(sizeof(SWP) * ulCount);
2761
2762	pswpThis = pxac->paswp;
2763	pmpThis = pmpFlags;
2764
2765	for (ul = 0;
2766	ul < ulCount;
2767	ul++)
2768	{
2769	HWND hwndThis;
2770	CHAR szClass[10];
2771	if (hwndThis = WinWindowFromID(hwndDlg, SHORT1FROMMP(*pmpThis)))
2772	{
2773	WinQueryWindowPos(hwndThis, pswpThis);
2774
2775	// correlate the stupid repositioning of entry fields
2776	// V0.9.19 (2002-04-13) [umoeller]
2777	if ( (WinQueryClassName(hwndThis, sizeof(szClass), szClass)
2778	&& (!strcmp(szClass, "#6"))
2779	&& (WinQueryWindowULong(hwndThis, QWL_STYLE) & ES_MARGIN))
2780	)
2781	{
2782	pswpThis->x += cxMarginEF;
2783	pswpThis->y += cyMarginEF;
2784	pswpThis->cx -= 2 * cxMarginEF;
2785	pswpThis->cy -= 2 * cyMarginEF;
2786	}
2787
2788	cWindows++;
2789	}
2790
2791	pswpThis++;
2792	pmpThis++;
2793	}
2794
2795	pxac->fInitialized = TRUE;
2796	// _Pmpf(("winhAdjustControls: queried %d controls", cWindows));
2797	}
2798
2799	if (pswpNew)
2800	{
2801	// compute width and height delta
2802	ldcx = (pswpNew->cx - pxac->swpMain.cx);
2803	ldcy = (pswpNew->cy - pxac->swpMain.cy);
2804
2805	// _Pmpf(("winhAdjustControls: new cx = %d, cy = %d",
2806	// pswpNew->cx, pswpNew->cy));
2807
2808	// now adjust the controls
2809	cWindows = 0;
2810	pswpThis = pxac->paswp;
2811	pmpThis = pmpFlags;
2812	for (ul = 0;
2813	ul < ulCount;
2814	ul++)
2815	{
2816	HWND hwndThis;
2817	if (hwndThis = WinWindowFromID(hwndDlg, SHORT1FROMMP(*pmpThis)))
2818	{
2819	LONG x = pswpThis->x,
2820	y = pswpThis->y,
2821	cx = pswpThis->cx,
2822	cy = pswpThis->cy;
2823
2824	ULONG ulSwpFlags = 0;
2825	// get flags for this control
2826	USHORT usFlags = SHORT2FROMMP(*pmpThis);
2827
2828	if (usFlags & XAC_MOVEX)
2829	{
2830	x += ldcx;
2831	ulSwpFlags \|= SWP_MOVE;
2832	}
2833	if (usFlags & XAC_MOVEY)
2834	{
2835	y += ldcy;
2836	ulSwpFlags \|= SWP_MOVE;
2837	}
2838	if (usFlags & XAC_SIZEX)
2839	{
2840	cx += ldcx;
2841	ulSwpFlags \|= SWP_SIZE;
2842	}
2843	if (usFlags & XAC_SIZEY)
2844	{
2845	cy += ldcy;
2846	ulSwpFlags \|= SWP_SIZE;
2847	}
2848
2849	if (ulSwpFlags)
2850	{
2851	WinSetWindowPos(hwndThis,
2852	NULLHANDLE, // hwndInsertBehind
2853	x, y, cx, cy,
2854	ulSwpFlags);
2855	cWindows++;
2856	brc = TRUE;
2857	}
2858	}
2859
2860	pswpThis++;
2861	pmpThis++;
2862	}
2863
2864	// _Pmpf(("winhAdjustControls: set %d windows", cWindows));
2865	}
2866	}
2867	else
2868	{
2869	// pxac == NULL:
2870	// cleanup mode
2871	if (pxac->paswp)
2872	free(pxac->paswp);
2873	}
2874
2875	return brc;
2876	}
2877
2878	/*
2879	*@@ winhCenterWindow:
2880	* centers a window within its parent window. If that's
2881	* the PM desktop, it will be centered according to the
2882	* whole screen.
2883	* For dialog boxes, use WinCenteredDlgBox as a one-shot
2884	* function.
2885	*
2886	* Note: When calling this function, the window should
2887	* not be visible to avoid flickering.
2888	* This func does not show the window either, so call
2889	* WinShowWindow afterwards.
2890	*/
2891
2892	void winhCenterWindow(HWND hwnd)
2893	{
2894	RECTL rclParent;
2895	RECTL rclWindow;
2896
2897	WinQueryWindowRect(hwnd, &rclWindow);
2898	WinQueryWindowRect(WinQueryWindow(hwnd, QW_PARENT), &rclParent);
2899
2900	rclWindow.xLeft = (rclParent.xRight - rclWindow.xRight) / 2;
2901	rclWindow.yBottom = (rclParent.yTop - rclWindow.yTop ) / 2;
2902
2903	WinSetWindowPos(hwnd, NULLHANDLE, rclWindow.xLeft, rclWindow.yBottom,
2904	0, 0, SWP_MOVE);
2905	}
2906
2907	/*
2908	*@@ winhCenteredDlgBox:
2909	* just like WinDlgBox, but the dlg box is centered on the screen;
2910	* you should mark the dlg template as not visible in the dlg
2911	* editor, or display will flicker.
2912	* As opposed to winhCenterWindow, this _does_ show the window.
2913	*/
2914
2915	ULONG winhCenteredDlgBox(HWND hwndParent,
2916	HWND hwndOwner,
2917	PFNWP pfnDlgProc,
2918	HMODULE hmod,
2919	ULONG idDlg,
2920	PVOID pCreateParams)
2921	{
2922	ULONG ulReply;
2923	HWND hwndDlg = WinLoadDlg(hwndParent,
2924	hwndOwner,
2925	pfnDlgProc,
2926	hmod,
2927	idDlg,
2928	pCreateParams);
2929	winhCenterWindow(hwndDlg);
2930	ulReply = WinProcessDlg(hwndDlg);
2931	WinDestroyWindow(hwndDlg);
2932	return ulReply;
2933	}
2934
2935	/*
2936	*@@ winhPlaceBesides:
2937	* attempts to place hwnd somewhere besides
2938	* hwndRelative.
2939	*
2940	* fl is presently ignored, but should be
2941	* PLF_SMART for future extensions.
2942	*
2943	* Works only if hwnd is a desktop child.
2944	*
2945	*@@added V0.9.19 (2002-04-17) [umoeller]
2946	*@@changed V1.0.0 (2002-08-26) [umoeller]: fixed cx and cy confusion
2947	*/
2948
2949	BOOL winhPlaceBesides(HWND hwnd,
2950	HWND hwndRelative,
2951	ULONG fl)
2952	{
2953	SWP swpRel,
2954	swpThis;
2955	LONG xNew, yNew;
2956
2957	if ( (WinQueryWindowPos(hwndRelative, &swpRel))
2958	&& (WinQueryWindowPos(hwnd, &swpThis))
2959	)
2960	{
2961	HWND hwndRelParent,
2962	hwndThisParent;
2963	POINTL ptlRel = {swpRel.x, swpRel.y};
2964	if ( (hwndRelParent = WinQueryWindow(hwndRelative, QW_PARENT))
2965	&& (hwndThisParent = WinQueryWindow(hwnd, QW_PARENT))
2966	&& (hwndRelParent != hwndThisParent)
2967	)
2968	{
2969	WinMapWindowPoints(hwndRelParent,
2970	hwndThisParent,
2971	&ptlRel,
2972	1);
2973	}
2974
2975	// place right first
2976	xNew = ptlRel.x + swpRel.cx;
2977	// center vertically
2978	yNew = ptlRel.y + ((swpRel.cy - swpThis.cy) / 2);
2979
2980	// if (xNew + swpThis.cy > WinQuerySysValue(HWND_DESKTOP, SV_CXSCREEN))
2981	// not cy, but cx V1.0.0 (2002-08-26) [umoeller]
2982	if (xNew + swpThis.cx > G_cxScreen)
2983	{
2984	// place left then
2985	xNew = ptlRel.x - swpThis.cx;
2986
2987	if (xNew < 0)
2988	{
2989	// center then
2990	winhCenterWindow(hwnd);
2991	return TRUE;
2992	}
2993	}
2994
2995	return WinSetWindowPos(hwnd,
2996	0,
2997	xNew,
2998	yNew,
2999	0,
3000	0,
3001	SWP_MOVE);
3002	}
3003
3004	return FALSE;
3005	}
3006
3007	/*
3008	*@@ winhFindWindowBelow:
3009	* finds the window with the same parent
3010	* which sits right below hwndFind in the
3011	* window Z-order.
3012	*
3013	*@@added V0.9.7 (2000-12-04) [umoeller]
3014	*/
3015
3016	HWND winhFindWindowBelow(HWND hwndFind)
3017	{
3018	HWND hwnd = NULLHANDLE,
3019	hwndParent = WinQueryWindow(hwndFind, QW_PARENT);
3020
3021	if (hwndParent)
3022	{
3023	HENUM henum = WinBeginEnumWindows(hwndParent);
3024	HWND hwndThis;
3025	while (hwndThis = WinGetNextWindow(henum))
3026	{
3027	SWP swp;
3028	WinQueryWindowPos(hwndThis, &swp);
3029	if (swp.hwndInsertBehind == hwndFind)
3030	{
3031	hwnd = hwndThis;
3032	break;
3033	}
3034	}
3035	WinEndEnumWindows(henum);
3036	}
3037
3038	return hwnd;
3039	}
3040
3041	/*
3042	*@@category: Helpers\PM helpers\Presentation parameters
3043	*/
3044
3045	/* ******************************************************************
3046	*
3047	* Presparams helpers
3048	*
3049	********************************************************************/
3050
3051	/*
3052	*@@ winhQueryWindowFont:
3053	* returns the window font presentation parameter
3054	* in a newly allocated buffer.
3055	*
3056	* Returns NULL on error. Use free()
3057	* to free the return value.
3058	*
3059	*@@added V0.9.1 (2000-02-14) [umoeller]
3060	*/
3061
3062	PSZ winhQueryWindowFont(HWND hwnd)
3063	{
3064	CHAR szNewFont[100] = "";
3065	WinQueryPresParam(hwnd,
3066	PP_FONTNAMESIZE,
3067	0,
3068	NULL,
3069	(ULONG)sizeof(szNewFont),
3070	(PVOID)&szNewFont,
3071	QPF_NOINHERIT);
3072	if (szNewFont[0] != 0)
3073	return strdup(szNewFont);
3074
3075	return NULL;
3076	}
3077
3078	/*
3079	*@@ winhQueryDefaultFont:
3080	*
3081	*@@added V1.0.1 (2002-11-30) [umoeller]
3082	*/
3083
3084	PCSZ winhQueryDefaultFont(VOID)
3085	{
3086	if (doshIsWarp4())
3087	return "9.WarpSans";
3088
3089	return "8.Helv";
3090	}
3091
3092	/*
3093	*@@ winhQueryMenuSysFont:
3094	* returns the system menu font in a new buffer
3095	* to be free()'d by caller.
3096	*
3097	*@@added V1.0.1 (2003-01-05) [umoeller]
3098	*/
3099
3100	PSZ winhQueryMenuSysFont(VOID)
3101	{
3102	PSZ pszStdMenuFont;
3103	if (!(pszStdMenuFont = prfhQueryProfileData(HINI_USER,
3104	PMINIAPP_SYSTEMFONTS, // "PM_SystemFonts",
3105	PMINIKEY_MENUSFONT, // "Menus",
3106	NULL)))
3107	pszStdMenuFont = prfhQueryProfileData(HINI_USER,
3108	PMINIAPP_SYSTEMFONTS, // "PM_SystemFonts",
3109	PMINIKEY_DEFAULTFONT, // "DefaultFont",
3110	NULL);
3111
3112	return pszStdMenuFont;
3113	}
3114
3115	/*
3116	*@@ winhSetWindowFont:
3117	* this sets a window's font by invoking
3118	* WinSetPresParam on it.
3119	*
3120	* If (pszFont == NULL), a default font will be set
3121	* (on Warp 4, "9.WarpSans", on Warp 3, "8.Helv").
3122	*
3123	* winh.h also defines the winhSetDlgItemFont macro.
3124	*
3125	* Returns TRUE if successful or FALSE otherwise.
3126	*
3127	*@@added V0.9.0 [umoeller]
3128	*@@changed V1.0.1 (2002-11-30) [umoeller]: optimized
3129	*/
3130
3131	BOOL winhSetWindowFont(HWND hwnd,
3132	const char *pcszFont)
3133	{
3134	if (!pcszFont)
3135	pcszFont = winhQueryDefaultFont();
3136
3137	return WinSetPresParam(hwnd,
3138	PP_FONTNAMESIZE,
3139	strlen(pcszFont) + 1,
3140	(PSZ)pcszFont);
3141	}
3142
3143	/*
3144	*@@ winhSetControlsFont:
3145	* this sets the font for all the controls of hwndDlg
3146	* which have a control ID in the range of usIDMin to
3147	* usIDMax. "Unused" IDs (i.e. -1) will also be set.
3148	*
3149	* If (pszFont == NULL), a default font will be set
3150	* (on Warp 4, "9.WarpSans", on Warp 3, "8.Helv").
3151	*
3152	* Returns the no. of controls set.
3153	*
3154	*@@added V0.9.0 [umoeller]
3155	*/
3156
3157	ULONG winhSetControlsFont(HWND hwndDlg, // in: dlg to set
3158	SHORT usIDMin, // in: minimum control ID to be set (inclusive)
3159	SHORT usIDMax, // in: maximum control ID to be set (inclusive)
3160	const char *pcszFont) // in: font to use (e.g. "9.WarpSans") or NULL
3161	{
3162	ULONG ulrc = 0;
3163	HENUM henum;
3164	HWND hwndItem;
3165	CHAR szFont[256];
3166	ULONG cbFont;
3167
3168	if (pcszFont == NULL)
3169	{
3170	if (doshIsWarp4())
3171	strhncpy0(szFont, "9.WarpSans", sizeof(szFont));
3172	else
3173	strhncpy0(szFont, "8.Helv", sizeof(szFont));
3174	}
3175	else
3176	strhncpy0(szFont, pcszFont, sizeof(szFont));
3177
3178	cbFont = strlen(szFont) + 1;
3179
3180	// set font for all the dialog controls
3181	henum = WinBeginEnumWindows(hwndDlg);
3182	while ((hwndItem = WinGetNextWindow(henum)))
3183	{
3184	SHORT sID = WinQueryWindowUShort(hwndItem, QWS_ID);
3185	if ( (sID == -1)
3186	\|\| ((sID >= usIDMin) && (sID <= usIDMax))
3187	)
3188	if (WinSetPresParam(hwndItem,
3189	PP_FONTNAMESIZE,
3190	cbFont,
3191	szFont))
3192	// successful:
3193	ulrc++;
3194	}
3195	WinEndEnumWindows(henum);
3196
3197	return ulrc;
3198	}
3199
3200	/*
3201	*@@ winhStorePresParam:
3202	* this appends a new presentation parameter to an
3203	* array of presentation parameters which can be
3204	* passed to WinCreateWindow. This is preferred
3205	* over setting the presparams using WinSetPresParams,
3206	* because that call will cause a lot of messages.
3207	*
3208	* On the first call, pppp _must_ be NULL. This
3209	* will allocate memory for storing the given
3210	* data as necessary and modify *pppp to point
3211	* to the new array.
3212	*
3213	* On subsequent calls with the same pppp, memory
3214	* will be reallocated, the old data will be copied,
3215	* and the new given data will be appended.
3216	*
3217	* Use free() on your PPRESPARAMS pointer (whose
3218	* address was passed) after WinCreateWindow.
3219	*
3220	* See winhQueryPresColor for typical presparams
3221	* used in OS/2.
3222	*
3223	* Example:
3224	*
3225	+ PPRESPARAMS ppp = NULL;
3226	+ CHAR szFont[] = "9.WarpSans";
3227	+ LONG lColor = CLR_WHITE;
3228	+ winhStorePresParam(&ppp, PP_FONTNAMESIZE, sizeof(szFont), szFont);
3229	+ winhStorePresParam(&ppp, PP_BACKGROUNDCOLOR, sizeof(lColor), &lColor);
3230	+ WinCreateWindow(...., ppp);
3231	+ free(ppp);
3232	*
3233	*@@added V0.9.0 [umoeller]
3234	*/
3235
3236	BOOL winhStorePresParam(PPRESPARAMS *pppp, // in: data pointer (modified)
3237	ULONG ulAttrType, // in: PP_* index
3238	ULONG cbData, // in: sizeof(*pData), e.g. sizeof(LONG)
3239	PVOID pData) // in: presparam data (e.g. a PLONG to a color)
3240	{
3241	BOOL brc = FALSE;
3242	if (pppp)
3243	{
3244	ULONG cbOld = 0,
3245	cbNew;
3246	PBYTE pbTemp = 0;
3247	PPRESPARAMS pppTemp = 0;
3248	PPARAM pppCopyTo = 0;
3249
3250	if (*pppp != NULL)
3251	// subsequent calls:
3252	cbOld = (**pppp).cb;
3253
3254	cbNew = sizeof(ULONG) // PRESPARAMS.cb
3255	+ cbOld // old count, which does not include PRESPARAMS.cb
3256	+ sizeof(ULONG) // PRESPARAMS.aparam[0].id
3257	+ sizeof(ULONG) // PRESPARAMS.aparam[0].cb
3258	+ cbData; // PRESPARAMS.aparam[0].ab[]
3259
3260	pbTemp = (PBYTE)malloc(cbNew);
3261	if (pbTemp)
3262	{
3263	pppTemp = (PPRESPARAMS)pbTemp;
3264
3265	if (*pppp != NULL)
3266	{
3267	// copy old data
3268	memcpy(pbTemp, *pppp, cbOld + sizeof(ULONG)); // including PRESPARAMS.cb
3269	pppCopyTo = (PPARAM)(pbTemp // new buffer
3270	+ sizeof(ULONG) // skipping PRESPARAMS.cb
3271	+ cbOld); // old PARAM array
3272	}
3273	else
3274	// first call:
3275	pppCopyTo = pppTemp->aparam;
3276
3277	pppTemp->cb = cbNew - sizeof(ULONG); // excluding PRESPARAMS.cb
3278	pppCopyTo->id = ulAttrType;
3279	pppCopyTo->cb = cbData; // byte count of PARAM.ab[]
3280	memcpy(pppCopyTo->ab, pData, cbData);
3281
3282	free(*pppp);
3283	*pppp = pppTemp;
3284
3285	brc = TRUE;
3286	}
3287	}
3288
3289	return brc;
3290	}
3291
3292	/*
3293	*@@ winhCreateDefaultPresparams:
3294	*
3295	* Caller must free() the return value.
3296	*
3297	*@@added V1.0.1 (2002-11-30) [umoeller]
3298	*/
3299
3300	PPRESPARAMS winhCreateDefaultPresparams(VOID)
3301	{
3302	PPRESPARAMS ppp = NULL;
3303
3304	PCSZ pcszFont = winhQueryDefaultFont();
3305	LONG lColor;
3306
3307	winhStorePresParam(&ppp,
3308	PP_FONTNAMESIZE,
3309	strlen(pcszFont) + 1,
3310	(PVOID)pcszFont);
3311
3312	lColor = WinQuerySysColor(HWND_DESKTOP,
3313	SYSCLR_DIALOGBACKGROUND,
3314	0);
3315	winhStorePresParam(&ppp,
3316	PP_BACKGROUNDCOLOR,
3317	sizeof(lColor),
3318	&lColor);
3319
3320	lColor = RGBCOL_BLACK;
3321	winhStorePresParam(&ppp,
3322	PP_FOREGROUNDCOLOR,
3323	sizeof(lColor),
3324	&lColor);
3325
3326	return ppp;
3327	}
3328
3329	/*
3330	*@@ winhQueryPresColor2:
3331	* returns the specified color. This is queried in the
3332	* following order:
3333	*
3334	* 1) hwnd's pres params are searched for ulPP
3335	* (which should be a PP_* index);
3336	* 2) if (fInherit == TRUE), the parent windows
3337	* are searched also;
3338	* 3) if this fails or (fInherit == FALSE), WinQuerySysColor
3339	* is called to get lSysColor (which should be a SYSCLR_*
3340	* index), if lSysColor != -1;
3341	* 4) if (lSysColor == -1), -1 is returned.
3342	*
3343	* The return value is always an RGB LONG, _not_ a color index.
3344	* This is even true for the returned system colors, which are
3345	* converted to RGB.
3346	*
3347	* If you do any painting with this value, you should switch
3348	* the HPS you're using to RGB mode (use gpihSwitchToRGB for that).
3349	*
3350	* Some useful ulPP / lSysColor pairs
3351	* (default values as in PMREF):
3352	*
3353	+ -- PP_FOREGROUNDCOLOR SYSCLR_WINDOWTEXT (for most controls also)
3354	+ SYSCLR_WINDOWSTATICTEXT (for static controls)
3355	+ Foreground color (default: black)
3356	+ -- PP_BACKGROUNDCOLOR SYSCLR_BACKGROUND
3357	+ SYSCLR_DIALOGBACKGROUND
3358	+ SYSCLR_FIELDBACKGROUND (for disabled scrollbars)
3359	+ SYSCLR_WINDOW (application surface -- empty clients)
3360	+ Background color (default: light gray)
3361	+ -- PP_ACTIVETEXTFGNDCOLOR
3362	+ -- PP_HILITEFOREGROUNDCOLOR SYSCLR_HILITEFOREGROUND
3363	+ Highlighted foreground color, for example for selected menu
3364	+ (def.: white)
3365	+ -- PP_ACTIVETEXTBGNDCOLOR
3366	+ -- PP_HILITEBACKGROUNDCOLOR SYSCLR_HILITEBACKGROUND
3367	+ Highlighted background color (def.: dark gray)
3368	+ -- PP_INACTIVETEXTFGNDCOLOR
3369	+ -- PP_DISABLEDFOREGROUNDCOLOR SYSCLR_MENUDISABLEDTEXT
3370	+ Disabled foreground color (dark gray)
3371	+ -- PP_INACTIVETEXTBGNDCOLOR
3372	+ -- PP_DISABLEDBACKGROUNDCOLOR
3373	+ Disabled background color
3374	+ -- PP_BORDERCOLOR SYSCLR_WINDOWFRAME
3375	+ SYSCLR_INACTIVEBORDER
3376	+ Border color (around pushbuttons, in addition to
3377	+ the 3D colors)
3378	+ -- PP_ACTIVECOLOR SYSCLR_ACTIVETITLE
3379	+ Active color
3380	+ -- PP_INACTIVECOLOR SYSCLR_INACTIVETITLE
3381	+ Inactive color
3382	*
3383	* For menus:
3384	+ -- PP_MENUBACKGROUNDCOLOR SYSCLR_MENU
3385	+ -- PP_MENUFOREGROUNDCOLOR SYSCLR_MENUTEXT
3386	+ -- PP_MENUHILITEBGNDCOLOR SYSCLR_MENUHILITEBGND
3387	+ -- PP_MENUHILITEFGNDCOLOR SYSCLR_MENUHILITE
3388	+ -- ?? SYSCLR_MENUDISABLEDTEXT
3389	+
3390	* For containers (according to the API ref. at EDM/2):
3391	+ -- PP_FOREGROUNDCOLOR SYSCLR_WINDOWTEXT
3392	+ -- PP_BACKGROUNDCOLOR SYSCLR_WINDOW
3393	+ -- PP_HILITEFOREGROUNDCOLOR SYSCLR_HILITEFOREGROUND
3394	+ -- PP_HILITEBACKGROUNDCOLOR SYSCLR_HILITEBACKGROUND
3395	+ -- PP_BORDERCOLOR
3396	+ (used for separator lines, eg. in Details view)
3397	+ -- PP_ICONTEXTBACKGROUNDCOLOR
3398	+ (column titles in Details view?!?)
3399	+
3400	* For listboxes / entryfields / MLE's:
3401	+ -- PP_BACKGROUNDCOLOR SYSCLR_ENTRYFIELD
3402	*
3403	* PMREF has more of these.
3404	*
3405	@@changed V0.9.0 [umoeller]: removed INI key query, using SYSCLR_ instead; function prototype changed
3406	*@@changed V0.9.0 [umoeller]: added fInherit parameter
3407	*@@changed V0.9.7 (2000-12-02) [umoeller]: added lSysColor == -1 support
3408	*@@changed V0.9.20 (2002-08-04) [umoeller]: added ulPPIndex, renamed func
3409	*/
3410
3411	LONG winhQueryPresColor2(HWND hwnd, // in: window to query
3412	ULONG ulppRGB, // in: PP_* index for RGB color
3413	ULONG ulppIndex, // in: PP_* index for color _index_ (can be null)
3414	BOOL fInherit, // in: search parent windows too?
3415	LONG lSysColor) // in: SYSCLR_* index or -1
3416	{
3417	ULONG ul,
3418	attrFound;
3419	LONG lColorFound;
3420
3421	if (ulppRGB != (ULONG)-1)
3422	{
3423	ULONG fl = 0;
3424	if (!fInherit)
3425	fl = QPF_NOINHERIT;
3426	if (ulppIndex)
3427	fl \|= QPF_ID2COLORINDEX; // convert indexed color 2 to RGB V0.9.20 (2002-08-04) [umoeller]
3428
3429	if (ul = WinQueryPresParam(hwnd,
3430	ulppRGB,
3431	ulppIndex,
3432	&attrFound,
3433	sizeof(lColorFound),
3434	&lColorFound,
3435	fl))
3436	return lColorFound;
3437	}
3438
3439	// not found: get system color
3440	if (lSysColor != -1)
3441	return WinQuerySysColor(HWND_DESKTOP, lSysColor, 0);
3442
3443	return -1;
3444	}
3445
3446	/*
3447	*@@ winhQueryPresColor:
3448	* compatibility function because this one was
3449	* exported.
3450	*
3451	*@@added V0.9.20 (2002-08-04) [umoeller]
3452	*/
3453
3454	LONG XWPENTRY winhQueryPresColor(HWND hwnd,
3455	ULONG ulPP,
3456	BOOL fInherit,
3457	LONG lSysColor)
3458	{
3459	return winhQueryPresColor2(hwnd,
3460	ulPP,
3461	0,
3462	fInherit,
3463	lSysColor);
3464	}
3465
3466	/*
3467	*@@ winhSetPresColor:
3468	* sets a color presparam. ulIndex specifies
3469	* the presparam to be set and would normally
3470	* be either PP_BACKGROUNDCOLOR or PP_FOREGROUNDCOLOR.
3471	*
3472	*@@added V0.9.16 (2001-10-15) [umoeller]
3473	*/
3474
3475	BOOL winhSetPresColor(HWND hwnd,
3476	ULONG ulIndex,
3477	LONG lColor)
3478	{
3479	return WinSetPresParam(hwnd,
3480	ulIndex,
3481	sizeof(LONG),
3482	&lColor);
3483	}
3484
3485	/*
3486	*@@category: Helpers\PM helpers\Help (IPF)
3487	*/
3488
3489	/* ******************************************************************
3490	*
3491	* Help instance helpers
3492	*
3493	********************************************************************/
3494
3495	/*
3496	*@@ winhCreateHelp:
3497	* creates a help instance and connects it with the
3498	* given frame window.
3499	*
3500	* If (pszFileName == NULL), we'll retrieve the
3501	* executable's fully qualified file name and
3502	* replace the extension with .HLP simply. This
3503	* avoids the typical "Help not found" errors if
3504	* the program isn't started in its own directory.
3505	*
3506	* If you have created a help table in memory, specify it
3507	* with pHelpTable. To load a help table from the resources,
3508	* specify hmod (or NULLHANDLE) and set pHelpTable to the
3509	* following:
3510	+
3511	+ (PHELPTABLE)MAKELONG(usTableID, 0xffff)
3512	*
3513	* Returns the help window handle or NULLHANDLE on errors.
3514	*
3515	* Based on an EDM/2 code snippet.
3516	*
3517	*@@added V0.9.4 (2000-07-03) [umoeller]
3518	*/
3519
3520	HWND winhCreateHelp(HWND hwndFrame, // in: app's frame window handle; can be NULLHANDLE
3521	const char *pcszFileName, // in: help file name or NULL
3522	HMODULE hmod, // in: module with help table or NULLHANDLE (current)
3523	PHELPTABLE pHelpTable, // in: help table or resource ID
3524	const char *pcszWindowTitle) // in: help window title or NULL
3525	{
3526	HELPINIT hi;
3527	PSZ pszExt;
3528	CHAR szName[CCHMAXPATH];
3529	HWND hwndHelp;
3530
3531	if (pcszFileName == NULL)
3532	{
3533	PPIB ppib;
3534	PTIB ptib;
3535	DosGetInfoBlocks(&ptib, &ppib);
3536	DosQueryModuleName(ppib->pib_hmte, sizeof(szName), szName);
3537
3538	pszExt = strrchr(szName, '.');
3539	if (pszExt)
3540	strcpy(pszExt, ".hlp");
3541	else
3542	strcat(szName, ".hlp");
3543
3544	pcszFileName = szName;
3545	}
3546
3547	hi.cb = sizeof(HELPINIT);
3548	hi.ulReturnCode = 0;
3549	hi.pszTutorialName = NULL;
3550	hi.phtHelpTable = pHelpTable;
3551	hi.hmodHelpTableModule = hmod;
3552	hi.hmodAccelActionBarModule = NULLHANDLE;
3553	hi.idAccelTable = 0;
3554	hi.idActionBar = 0;
3555	hi.pszHelpWindowTitle = (PSZ)pcszWindowTitle;
3556	hi.fShowPanelId = CMIC_HIDE_PANEL_ID;
3557	hi.pszHelpLibraryName = (PSZ)pcszFileName;
3558
3559	hwndHelp = WinCreateHelpInstance(WinQueryAnchorBlock(hwndFrame),
3560	&hi);
3561	if ((hwndFrame) && (hwndHelp))
3562	{
3563	WinAssociateHelpInstance(hwndHelp, hwndFrame);
3564	}
3565
3566	return hwndHelp;
3567	}
3568
3569	/*
3570	*@@ winhDisplayHelpPanel:
3571	* displays the specified help panel ID.
3572	*
3573	* If (ulHelpPanel == 0), this displays the
3574	* standard OS/2 "Using help" panel.
3575	*
3576	* Returns zero on success or one of the
3577	* help manager error codes on failure.
3578	* See HM_ERROR for those.
3579	*
3580	*@@added V0.9.7 (2001-01-21) [umoeller]
3581	*/
3582
3583	ULONG winhDisplayHelpPanel(HWND hwndHelpInstance, // in: from winhCreateHelp
3584	ULONG ulHelpPanel) // in: help panel ID
3585	{
3586	return (ULONG)WinSendMsg(hwndHelpInstance,
3587	HM_DISPLAY_HELP,
3588	(MPARAM)ulHelpPanel,
3589	(MPARAM)( (ulHelpPanel != 0)
3590	? HM_RESOURCEID
3591	: 0));
3592	}
3593
3594	/*
3595	*@@ winhDestroyHelp:
3596	* destroys the help instance created by winhCreateHelp.
3597	*
3598	* Based on an EDM/2 code snippet.
3599	*
3600	*@@added V0.9.4 (2000-07-03) [umoeller]
3601	*/
3602
3603	void winhDestroyHelp(HWND hwndHelp,
3604	HWND hwndFrame) // can be NULLHANDLE if not used with winhCreateHelp
3605	{
3606	if (hwndHelp)
3607	{
3608	if (hwndFrame)
3609	WinAssociateHelpInstance(NULLHANDLE, hwndFrame);
3610	WinDestroyHelpInstance(hwndHelp);
3611	}
3612	}
3613
3614	/*
3615	*@@category: Helpers\PM helpers\Application control
3616	*/
3617
3618	/* ******************************************************************
3619	*
3620	* Application control
3621	*
3622	********************************************************************/
3623
3624	/*
3625	*@@ winhAnotherInstance:
3626	* this tests whether another instance of the same
3627	* application is already running.
3628	*
3629	* To identify instances of the same application, the
3630	* application must call this function during startup
3631	* with the unique name of an OS/2 semaphore. As with
3632	* all OS/2 semaphores, the semaphore name must begin
3633	* with "\\SEM32\\". The semaphore isn't really used
3634	* except for testing for its existence, since that
3635	* name is unique among all processes.
3636	*
3637	* If another instance is found, TRUE is returned. If
3638	* (fSwitch == TRUE), that instance is switched to,
3639	* using the tasklist.
3640	*
3641	* If no other instance is found, FALSE is returned only.
3642	*
3643	* Based on an EDM/2 code snippet.
3644	*
3645	*@@added V0.9.0 (99-10-22) [umoeller]
3646	*/
3647
3648	BOOL winhAnotherInstance(const char *pcszSemName, // in: semaphore ID
3649	BOOL fSwitch) // in: if TRUE, switch to first instance if running
3650	{
3651	HMTX hmtx;
3652
3653	if (DosCreateMutexSem((PSZ)pcszSemName,
3654	&hmtx,
3655	DC_SEM_SHARED,
3656	TRUE)
3657	== NO_ERROR)
3658	// semapore created: this doesn't happen if the semaphore
3659	// exists already, so no other instance is running
3660	return FALSE;
3661
3662	// else: instance running
3663	hmtx = NULLHANDLE;
3664
3665	// switch to other instance?
3666	if (fSwitch)
3667	{
3668	// yes: query mutex creator
3669	if (DosOpenMutexSem((PSZ)pcszSemName,
3670	&hmtx)
3671	== NO_ERROR)
3672	{
3673	PID pid = 0;
3674	TID tid = 0; // unused
3675	ULONG ulCount; // unused
3676
3677	if (DosQueryMutexSem(hmtx, &pid, &tid, &ulCount) == NO_ERROR)
3678	{
3679	HSWITCH hswitch = WinQuerySwitchHandle(NULLHANDLE, pid);
3680	if (hswitch != NULLHANDLE)
3681	WinSwitchToProgram(hswitch);
3682	}
3683
3684	DosCloseMutexSem(hmtx);
3685	}
3686	}
3687
3688	return TRUE; // another instance exists
3689	}
3690
3691	/*
3692	*@@ winhAddToTasklist:
3693	* this adds the specified window to the tasklist
3694	* with hIcon as its program icon (which is also
3695	* set for the main window). This is useful for
3696	* the old "dialog as main window" trick.
3697	*
3698	* Returns the HSWITCH of the added entry.
3699	*/
3700
3701	HSWITCH winhAddToTasklist(HWND hwnd, // in: window to add
3702	HPOINTER hIcon) // in: icon for main window
3703	{
3704	SWCNTRL swctl;
3705	HSWITCH hswitch = 0;
3706	swctl.hwnd = hwnd; // window handle
3707	swctl.hwndIcon = hIcon; // icon handle
3708	swctl.hprog = NULLHANDLE; // program handle (use default)
3709	WinQueryWindowProcess(hwnd, &(swctl.idProcess), NULL);
3710	// process identifier
3711	swctl.idSession = 0; // session identifier ?
3712	swctl.uchVisibility = SWL_VISIBLE; // visibility
3713	swctl.fbJump = SWL_JUMPABLE; // jump indicator
3714	// get window title from window titlebar
3715	if (hwnd)
3716	WinQueryWindowText(hwnd, sizeof(swctl.szSwtitle), swctl.szSwtitle);
3717	swctl.bProgType = PROG_DEFAULT; // program type
3718	hswitch = WinAddSwitchEntry(&swctl);
3719
3720	// give the main window the icon
3721	if ((hwnd) && (hIcon))
3722	WinSendMsg(hwnd,
3723	WM_SETICON,
3724	(MPARAM)hIcon,
3725	NULL);
3726
3727	return hswitch;
3728	}
3729
3730	/*
3731	*@@ winhUpdateTasklist:
3732	* refreshes the task list entry for the given
3733	* window with a new title text.
3734	*
3735	*@@added V1.0.1 (2003-01-25) [umoeller]
3736	*/
3737
3738	BOOL winhUpdateTasklist(HWND hwnd,
3739	PCSZ pcszNewTitle)
3740	{
3741	HSWITCH hsw;
3742	if (hsw = WinQuerySwitchHandle(hwnd, 0))
3743	{
3744	SWCNTRL swc;
3745	WinQuerySwitchEntry(hsw, &swc);
3746	strhncpy0(swc.szSwtitle,
3747	pcszNewTitle,
3748	sizeof(swc.szSwtitle));
3749	return !WinChangeSwitchEntry(hsw, &swc);
3750	}
3751
3752	return FALSE;
3753	}
3754
3755	/*
3756	*@@category: Helpers\PM helpers\Miscellaneous
3757	*/
3758
3759	/* ******************************************************************
3760	*
3761	* Miscellaneous
3762	*
3763	********************************************************************/
3764
3765	/*
3766	*@@ winhFree:
3767	* frees a block of memory allocated by the
3768	* winh* functions.
3769	*
3770	* Since the winh* functions use malloc(),
3771	* you can also use free() directly on such
3772	* blocks. However, you must use winhFree
3773	* if the winh* functions are in a module
3774	* with a different C runtime.
3775	*
3776	*@@added V0.9.7 (2000-12-06) [umoeller]
3777	*/
3778
3779	VOID winhFree(PVOID p)
3780	{
3781	if (p)
3782	free(p);
3783	}
3784
3785	/*
3786	*@@ winhSleep:
3787	* sleeps at least the specified amount of time,
3788	* without blocking the message queue.
3789	*
3790	* NOTE: This function is a bit expensive because
3791	* it creates a temporary object window. If you
3792	* need to sleep several times, you should rather
3793	* use a private timer.
3794	*
3795	*@@added V0.9.4 (2000-07-11) [umoeller]
3796	*@@changed V0.9.9 (2001-03-11) [umoeller]: rewritten
3797	*/
3798
3799	VOID winhSleep(ULONG ulSleep) // in: sleep time in milliseconds
3800	{
3801	HWND hwnd;
3802
3803	if (hwnd = winhCreateObjectWindow(WC_STATIC, NULL))
3804	{
3805	QMSG qmsg;
3806	HAB hab;
3807
3808	if ( (hab = WinQueryAnchorBlock(hwnd))
3809	&& (WinStartTimer(hab,
3810	hwnd,
3811	1,
3812	ulSleep))
3813	)
3814	{
3815	while (WinGetMsg(hab, &qmsg, NULLHANDLE, 0, 0))
3816	{
3817	if ( (qmsg.hwnd == hwnd)
3818	&& (qmsg.msg == WM_TIMER)
3819	&& (qmsg.mp1 == (MPARAM)1) // timer ID
3820	)
3821	break;
3822
3823	WinDispatchMsg(hab, &qmsg);
3824	}
3825	WinStopTimer(hab,
3826	hwnd,
3827	1);
3828	}
3829	else
3830	// timer creation failed:
3831	DosSleep(ulSleep);
3832
3833	WinDestroyWindow(hwnd);
3834	}
3835	else
3836	DosSleep(ulSleep);
3837	}
3838
3839	/*
3840	*@@ winhFileDlg:
3841	* one-short function for opening an "Open" file
3842	* dialog.
3843	*
3844	* On input, pszFile specifies the directory and
3845	* file specification (e.g. "F:\*.txt").
3846	*
3847	* Returns TRUE if the user pressed OK. In that
3848	* case, the fully qualified filename is written
3849	* into pszFile again.
3850	*
3851	* Returns FALSE if the user pressed Cancel.
3852	*
3853	* Notes about flFlags:
3854	*
3855	* -- WINH_FOD_SAVEDLG: display a "Save As" dialog.
3856	* Otherwise an "Open" dialog is displayed.
3857	*
3858	* -- WINH_FOD_INILOADDIR: load a directory from the
3859	* specified INI key and switch the dlg to it.
3860	* In that case, on input, pszFile must only
3861	* contain the file filter without any path
3862	* specification, because that is loaded from
3863	* the INI key. If the INI key does not exist,
3864	* the current process directory will be used.
3865	*
3866	* -- WINH_FOD_INISAVEDIR: if the user presses OK,
3867	* the directory of the selected file is written
3868	* to the specified INI key so that it can be
3869	* reused later. This flag is independent of
3870	* WINH_FOD_INISAVEDIR: you can specify none,
3871	* one, or both of them.
3872	*
3873	*@@added V0.9.3 (2000-04-29) [umoeller]
3874	*@@changed V0.9.12 (2001-05-21) [umoeller]: this failed if INI data had root dir, fixed
3875	*/
3876
3877	BOOL winhFileDlg(HWND hwndOwner, // in: owner for file dlg
3878	PSZ pszFile, // in: file mask; out: fully q'd filename
3879	// (should be CCHMAXPATH in size)
3880	ULONG flFlags, // in: any combination of the following:
3881	// -- WINH_FOD_SAVEDLG: save dlg; else open dlg
3882	// -- WINH_FOD_INILOADDIR: load FOD path from INI
3883	// -- WINH_FOD_INISAVEDIR: store FOD path to INI on OK
3884	HINI hini, // in: INI file to load/store last path from (can be HINI_USER)
3885	const char *pcszApplication, // in: INI application to load/store last path from
3886	const char *pcszKey) // in: INI key to load/store last path from
3887	{
3888	FILEDLG fd;
3889	FILESTATUS3 fs3;
3890
3891	memset(&fd, 0, sizeof(FILEDLG));
3892	fd.cbSize = sizeof(FILEDLG);
3893	fd.fl = FDS_CENTER;
3894
3895	if (flFlags & WINH_FOD_SAVEDLG)
3896	fd.fl \|= FDS_SAVEAS_DIALOG;
3897	else
3898	fd.fl \|= FDS_OPEN_DIALOG;
3899
3900	if ( (hini)
3901	&& (flFlags & WINH_FOD_INILOADDIR)
3902	&& (PrfQueryProfileString(hini,
3903	(PSZ)pcszApplication,
3904	(PSZ)pcszKey,
3905	"", // default string V0.9.9 (2001-02-10) [umoeller]
3906	fd.szFullFile,
3907	sizeof(fd.szFullFile)-10)
3908	> 2)
3909	// added these checks V0.9.12 (2001-05-21) [umoeller]
3910	&& (!DosQueryPathInfo(fd.szFullFile,
3911	FIL_STANDARD,
3912	&fs3,
3913	sizeof(fs3)))
3914	&& (fs3.attrFile & FILE_DIRECTORY)
3915	)
3916	{
3917	// found: append "\*"
3918	strcat(fd.szFullFile, "\\");
3919	strcat(fd.szFullFile, pszFile);
3920	}
3921	else
3922	// default: copy pszFile
3923	strcpy(fd.szFullFile, pszFile);
3924	// fixed V0.9.12 (2001-05-21) [umoeller]
3925
3926	if ( WinFileDlg(HWND_DESKTOP, // parent
3927	hwndOwner, // owner
3928	&fd)
3929	&& (fd.lReturn == DID_OK)
3930	)
3931	{
3932	// save path back?
3933	if ( (hini)
3934	&& (flFlags & WINH_FOD_INISAVEDIR)
3935	)
3936	{
3937	// get the directory that was used
3938	PSZ p = strrchr(fd.szFullFile, '\\');
3939	if (p)
3940	{
3941	// contains directory:
3942	// copy to OS2.INI
3943	PSZ pszDir = strhSubstr(fd.szFullFile, p);
3944	if (pszDir)
3945	{
3946	PrfWriteProfileString(hini,
3947	(PSZ)pcszApplication,
3948	(PSZ)pcszKey,
3949	pszDir);
3950	free(pszDir);
3951	}
3952	}
3953	}
3954
3955	strcpy(pszFile, fd.szFullFile);
3956
3957	return TRUE;
3958	}
3959
3960	return FALSE;
3961	}
3962
3963	/*
3964	*@@ winhQueryWaitPointer:
3965	* shortcut for getting the system "wait" pointer.
3966	*
3967	*@@added V1.0.1 (2002-11-30) [umoeller]
3968	*/
3969
3970	HPOINTER winhQueryWaitPointer(VOID)
3971	{
3972	return WinQuerySysPointer(HWND_DESKTOP,
3973	SPTR_WAIT,
3974	FALSE); // no copy
3975	}
3976
3977	/*
3978	*@@ winhSetWaitPointer:
3979	* this sets the mouse pointer to "Wait".
3980	* Returns the previous pointer (HPOINTER),
3981	* which should be stored somewhere to be
3982	* restored later. Example:
3983	+ HPOINTER hptrOld = winhSetWaitPointer();
3984	+ ...
3985	+ WinSetPointer(HWND_DESKTOP, hptrOld);
3986	*/
3987
3988	HPOINTER winhSetWaitPointer(VOID)
3989	{
3990	HPOINTER hptr = WinQueryPointer(HWND_DESKTOP);
3991	WinSetPointer(HWND_DESKTOP,
3992	winhQueryWaitPointer());
3993	return hptr;
3994	}
3995
3996	/*
3997	*@@ winhQueryWindowText2:
3998	* this returns the window text of the specified
3999	* HWND in a newly allocated buffer.
4000	*
4001	* If pulExtra is specified, *pulExtra bytes will
4002	* be allocated in addition to the window text
4003	* length. Useful if you plan to append something
4004	* to the string. On output, *pulExtra receives
4005	* the string length excluding the extra bytes
4006	* and the terminating null byte.
4007	*
4008	* Returns NULL on error. Use free()
4009	* to free the return value.
4010	*
4011	*@@added V1.0.1 (2003-01-05) [umoeller]
4012	*/
4013
4014	PSZ winhQueryWindowText2(HWND hwnd, // in: window whose text to query
4015	PULONG pulExtra) // in: extra bytes to allocate or NULL,
4016	// out: size of allocated buffer (including null byte)
4017	{
4018	PSZ pszText = NULL;
4019	ULONG cbText;
4020	if (cbText = WinQueryWindowTextLength(hwnd))
4021	{
4022	ULONG cbExtra = 1; // additional null character
4023	if (pulExtra)
4024	cbExtra += *pulExtra;
4025
4026	if (pszText = (PSZ)malloc(cbText + cbExtra))
4027	{
4028	WinQueryWindowText(hwnd,
4029	cbText + 1,
4030	pszText);
4031	if (pulExtra)
4032	*pulExtra = cbText;
4033	}
4034	}
4035
4036	return pszText;
4037	}
4038
4039	/*
4040	*@@ winhQueryWindowText:
4041	* this returns the window text of the specified
4042	* HWND in a newly allocated buffer.
4043	*
4044	* Returns NULL on error. Use free()
4045	* to free the return value.
4046	*
4047	*@@changed V1.0.1 (2003-01-05) [umoeller]: now using winhQueryWindowText2
4048	*/
4049
4050	PSZ winhQueryWindowText(HWND hwnd)
4051	{
4052	return winhQueryWindowText2(hwnd, NULL); // V1.0.1 (2003-01-05) [umoeller]
4053	}
4054
4055	/*
4056	*@@ winhQueryDlgItemText2:
4057	* shortcut around winhQueryWindowText2 to allow for
4058	* specifying a dialog item ID instead.
4059	*
4060	*@@added V1.0.1 (2003-01-05) [umoeller]
4061	*/
4062
4063	PSZ winhQueryDlgItemText2(HWND hwnd,
4064	USHORT usItemID,
4065	PULONG pulExtra)
4066	{
4067	return winhQueryWindowText2(WinWindowFromID(hwnd, usItemID),
4068	pulExtra);
4069	}
4070
4071	/*
4072	*@@ winhSetWindowText:
4073	* like WinSetWindowText, but this one accepts
4074	* printf-like arguments.
4075	*
4076	* Note that the total string is limited to
4077	* 1000 characters.
4078	*
4079	*@@added V0.9.16 (2001-10-08) [umoeller]
4080	*/
4081
4082	BOOL winhSetWindowText(HWND hwnd,
4083	const char *pcszFormat,
4084	...)
4085	{
4086	CHAR szBuf[1000];
4087	va_list args;
4088	int i;
4089	va_start(args, pcszFormat);
4090	i = vsprintf(szBuf, pcszFormat, args);
4091	va_end(args);
4092
4093	return WinSetWindowText(hwnd,
4094	szBuf);
4095	}
4096
4097	/*
4098	*@@ winhAppendWindowEllipseText:
4099	* appends three dots ("...") to the title
4100	* of the given window.
4101	*
4102	*@@added V1.0.1 (2003-01-05) [umoeller]
4103	*/
4104
4105	BOOL winhAppendWindowEllipseText(HWND hwnd)
4106	{
4107	ULONG cbExtra = 3;
4108	PSZ psz;
4109	BOOL brc = FALSE;
4110	if (psz = winhQueryWindowText2(hwnd, &cbExtra))
4111	{
4112	memcpy(psz + cbExtra, "...", 4);
4113	brc = WinSetWindowText(hwnd, psz);
4114	free(psz);
4115	}
4116
4117	return brc;
4118	}
4119
4120	/*
4121	*@@ winhAppendDlgItemEllipseText:
4122	*
4123	*@@added V1.0.1 (2003-01-05) [umoeller]
4124	*/
4125
4126	BOOL winhAppendDlgItemEllipseText(HWND hwnd,
4127	USHORT usItemID)
4128	{
4129	return winhAppendWindowEllipseText(WinWindowFromID(hwnd, usItemID));
4130	}
4131
4132	/*
4133	*@@ winhReplaceWindowText:
4134	* this is a combination of winhQueryWindowText
4135	* and strhFindReplace to replace substrings in a window.
4136	*
4137	* This is useful for filling in placeholders
4138	* a la "%1" in control windows, e.g. static
4139	* texts.
4140	*
4141	* This replaces only the first occurence of
4142	* pszSearch.
4143	*
4144	* Returns TRUE only if the window exists and
4145	* the search string was replaced.
4146	*
4147	*@@added V0.9.0 [umoeller]
4148	*/
4149
4150	BOOL winhReplaceWindowText(HWND hwnd, // in: window whose text is to be modified
4151	const char *pcszSearch, // in: search string (e.g. "%1")
4152	const char *pcszReplaceWith) // in: replacement string for pszSearch
4153	{
4154	BOOL brc = FALSE;
4155	PSZ pszText;
4156
4157	if (pszText = winhQueryWindowText(hwnd))
4158	{
4159	ULONG ulOfs = 0;
4160	if (strhFindReplace(&pszText, &ulOfs, pcszSearch, pcszReplaceWith) > 0)
4161	{
4162	WinSetWindowText(hwnd, pszText);
4163	brc = TRUE;
4164	}
4165
4166	free(pszText);
4167	}
4168
4169	return brc;
4170	}
4171
4172	/*
4173	*@@ winhEnableDlgItems:
4174	* this enables/disables a whole range of controls
4175	* in a window by enumerating the child windows
4176	* until usIDFirst is found. If so, that subwindow
4177	* is enabled/disabled and all the following windows
4178	* in the enumeration also, until usIDLast is found.
4179	*
4180	* Note that this affects _all_ controls following
4181	* the usIDFirst window, no matter what ID they have
4182	* (even if "-1"), until usIDLast is found.
4183	*
4184	* Returns the no. of controls which were enabled/disabled
4185	* (null if none).
4186	*
4187	*@@added V0.9.0 [umoeller]
4188	*@@changed V0.9.1 (99-12-20) [umoeller]: renamed from winhEnableDlgItems
4189	*/
4190
4191	ULONG winhEnableControls(HWND hwndDlg, // in: dialog window
4192	USHORT usIDFirst, // in: first affected control ID
4193	USHORT usIDLast, // in: last affected control ID (inclusive)
4194	BOOL fEnable) // in: enable or disable?
4195	{
4196	HENUM henum1 = NULLHANDLE;
4197	HWND hwndThis = NULLHANDLE;
4198	ULONG ulCount = 0;
4199
4200	henum1 = WinBeginEnumWindows(hwndDlg);
4201	while ((hwndThis = WinGetNextWindow(henum1)) != NULLHANDLE)
4202	{
4203	USHORT usIDCheckFirst = WinQueryWindowUShort(hwndThis, QWS_ID),
4204	usIDCheckLast;
4205	if (usIDCheckFirst == usIDFirst)
4206	{
4207	WinEnableWindow(hwndThis, fEnable);
4208	ulCount++;
4209
4210	while ((hwndThis = WinGetNextWindow(henum1)) != NULLHANDLE)
4211	{
4212	WinEnableWindow(hwndThis, fEnable);
4213	ulCount++;
4214	usIDCheckLast = WinQueryWindowUShort(hwndThis, QWS_ID);
4215	if (usIDCheckLast == usIDLast)
4216	break;
4217	}
4218
4219	break; // outer loop
4220	}
4221	}
4222	WinEndEnumWindows(henum1);
4223
4224	return ulCount;
4225	}
4226
4227	/*
4228	*@@ winhEnableControls2:
4229	* like winhEnableControls, but instead this
4230	* takes an array of ULONGs as input, which
4231	* is assumed to contain the dialog IDs of
4232	* the controls to be enabled/disabled.
4233	*
4234	*@@added V0.9.19 (2002-05-28) [umoeller]
4235	*/
4236
4237	ULONG winhEnableControls2(HWND hwndDlg, // in: dialog window
4238	const ULONG *paulIDs, // in: array of dialog IDs
4239	ULONG cIDs, // in: array item count (NOT array size)
4240	BOOL fEnable) // in: enable or disable?
4241	{
4242	ULONG ul,
4243	ulrc = 0;
4244	for (ul = 0;
4245	ul < cIDs;
4246	++ul)
4247	{
4248	if (WinEnableControl(hwndDlg, paulIDs[ul], fEnable))
4249	++ulrc;
4250	}
4251
4252	return ulrc;
4253	}
4254
4255	/*
4256	*@@ winhCreateStdWindow:
4257	* much like WinCreateStdWindow, but this one
4258	* allows you to have the standard window
4259	* positioned automatically, using a given
4260	* SWP structure (*pswpFrame).
4261	*
4262	* The frame is created with the specified parent
4263	* (usually HWND_DESKTOP), but no owner.
4264	*
4265	* The client window is created with the frame as
4266	* its parent and owner and gets an ID of FID_CLIENT.
4267	*
4268	* Alternatively, you can set pswpFrame to NULL
4269	* and specify FCF_SHELLPOSITION with flFrameCreateFlags.
4270	* If you want the window to be shown, specify
4271	* SWP_SHOW (and maybe SWP_ACTIVATE) in *pswpFrame.
4272	*
4273	*@@added V0.9.0 [umoeller]
4274	*@@changed V0.9.5 (2000-08-13) [umoeller]: flStyleClient never worked, fixed
4275	*@@changed V0.9.7 (2000-12-08) [umoeller]: fixed client calc for invisible window
4276	*@@changed V1.0.1 (2002-11-30) [umoeller]: added support for NULL pcszClassClient
4277	*/
4278
4279	HWND winhCreateStdWindow(HWND hwndFrameParent, // in: normally HWND_DESKTOP
4280	PSWP pswpFrame, // in: frame wnd pos (ptr can be NULL)
4281	ULONG flFrameCreateFlags, // in: FCF_* flags
4282	ULONG ulFrameStyle, // in: WS_* flags (e.g. WS_VISIBLE, WS_ANIMATE)
4283	const char *pcszFrameTitle, // in: frame title (title bar)
4284	ULONG ulResourcesID, // in: according to FCF_* flags
4285	const char *pcszClassClient, // in: client class name (can be NULL for no client)
4286	ULONG flStyleClient, // in: client style
4287	ULONG ulID, // in: frame window ID
4288	PVOID pClientCtlData, // in: pCtlData structure pointer for client
4289	PHWND phwndClient) // out: created client wnd (required)
4290	{
4291	FRAMECDATA fcdata;
4292	HWND hwndFrame;
4293	RECTL rclClient;
4294
4295	fcdata.cb = sizeof(FRAMECDATA);
4296	fcdata.flCreateFlags = flFrameCreateFlags;
4297	fcdata.hmodResources = (HMODULE)NULL;
4298	fcdata.idResources = ulResourcesID;
4299
4300	// create the frame and client windows
4301	if (hwndFrame = WinCreateWindow(hwndFrameParent,
4302	WC_FRAME,
4303	(PSZ)pcszFrameTitle,
4304	ulFrameStyle,
4305	0,0,0,0,
4306	NULLHANDLE,
4307	HWND_TOP,
4308	ulID,
4309	&fcdata,
4310	NULL))
4311	{
4312	if ( (!pcszClassClient) // V1.0.1 (2002-11-30) [umoeller]
4313	\|\| (*phwndClient = WinCreateWindow(hwndFrame, // parent
4314	(PSZ)pcszClassClient, // class
4315	NULL, // no title
4316	flStyleClient, // style
4317	0,0,0,0, // size and position = 0
4318	hwndFrame, // owner
4319	HWND_BOTTOM, // bottom z-order
4320	FID_CLIENT, // frame window ID
4321	pClientCtlData, // class data
4322	NULL)) // no presparams
4323	)
4324	{
4325	if (pswpFrame)
4326	{
4327	// position frame
4328	WinSetWindowPos(hwndFrame,
4329	pswpFrame->hwndInsertBehind,
4330	pswpFrame->x,
4331	pswpFrame->y,
4332	pswpFrame->cx,
4333	pswpFrame->cy,
4334	pswpFrame->fl);
4335
4336	if (!pcszClassClient)
4337	*phwndClient = NULLHANDLE;
4338	else
4339	{
4340	// position client
4341	// WinQueryWindowRect(hwndFrame, &rclClient);
4342	// doesn't work because it might be invisible V0.9.7 (2000-12-08) [umoeller]
4343	rclClient.xLeft = 0;
4344	rclClient.yBottom = 0;
4345	rclClient.xRight = pswpFrame->cx;
4346	rclClient.yTop = pswpFrame->cy;
4347	WinCalcFrameRect(hwndFrame,
4348	&rclClient,
4349	TRUE); // calc client from frame
4350	WinSetWindowPos(*phwndClient,
4351	HWND_TOP,
4352	rclClient.xLeft,
4353	rclClient.yBottom,
4354	rclClient.xRight - rclClient.xLeft,
4355	rclClient.yTop - rclClient.yBottom,
4356	SWP_MOVE \| SWP_SIZE \| SWP_SHOW);
4357	}
4358	}
4359	}
4360	}
4361
4362	return hwndFrame;
4363	}
4364
4365	/*
4366	*@@ winhCreateObjectWindow:
4367	* creates an object window of the specified
4368	* window class, which you should have registered
4369	* before calling this. pvCreateParam will be
4370	* given to the window on WM_CREATE.
4371	*
4372	* Returns the HWND of the object window or
4373	* NULLHANDLE on errors.
4374	*
4375	*@@added V0.9.3 (2000-04-17) [umoeller]
4376	*@@changed V0.9.7 (2001-01-17) [umoeller]: made this a function from a macro
4377	*/
4378
4379	HWND winhCreateObjectWindow(const char *pcszWindowClass, // in: PM window class name
4380	PVOID pvCreateParam) // in: create param
4381	{
4382	return WinCreateWindow(HWND_OBJECT,
4383	(PSZ)pcszWindowClass,
4384	(PSZ)"",
4385	0,
4386	0,0,0,0,
4387	0,
4388	HWND_BOTTOM,
4389	0,
4390	pvCreateParam,
4391	NULL);
4392	}
4393
4394	/*
4395	*@@ winhCreateControl:
4396	* creates a control with a size and position of 0.
4397	*
4398	*@@added V0.9.9 (2001-03-13) [umoeller]
4399	*@@changed V1.0.0 (2002-08-26) [umoeller]: added separate hwndOwner
4400	*/
4401
4402	HWND winhCreateControl(HWND hwndParent, // in: parent window
4403	HWND hwndOwner, // in: owner window
4404	const char *pcszClass, // in: window class (e.g. WC_BUTTON)
4405	const char *pcszText, // in: window title
4406	ULONG ulStyle, // in: control style
4407	ULONG ulID) // in: control ID
4408	{
4409	return WinCreateWindow(hwndParent,
4410	(PSZ)pcszClass,
4411	(PSZ)pcszText,
4412	ulStyle,
4413	0, 0, 0, 0,
4414	hwndOwner,
4415	HWND_TOP,
4416	ulID,
4417	NULL,
4418	NULL);
4419	}
4420
4421	/*
4422	*@@ winhSetParentAndOwner:
4423	* switches owner _and_ parent of the given window.
4424	*
4425	*@@added V1.0.1 (2003-01-17) [umoeller]
4426	*/
4427
4428	BOOL winhSetParentAndOwner(HWND hwnd, // in: window whose parent and owner to change
4429	HWND hwndNewParent, // in: new parent and owner
4430	BOOL fRedraw)
4431	{
4432	return ( WinSetParent(hwnd, hwndNewParent, fRedraw)
4433	&& WinSetOwner(hwnd, hwndNewParent)
4434	);
4435	}
4436
4437	/*
4438	*@@ winhRepaintWindows:
4439	* this repaints all children of hwndParent.
4440	* If this is passed as HWND_DESKTOP, the
4441	* whole screen is repainted.
4442	*
4443	*@@changed V0.9.7 (2000-12-13) [umoeller]: hwndParent was never respected, fixed
4444	*/
4445
4446	VOID winhRepaintWindows(HWND hwndParent)
4447	{
4448	HWND hwndTop;
4449	HENUM henum = WinBeginEnumWindows(hwndParent);
4450	while ((hwndTop = WinGetNextWindow(henum)))
4451	if (WinIsWindowShowing(hwndTop))
4452	WinInvalidateRect(hwndTop, NULL, TRUE);
4453	WinEndEnumWindows(henum);
4454	}
4455
4456	/*
4457	*@@ winhFindMsgQueue:
4458	* returns the message queue which matches
4459	* the given process and thread IDs. Since,
4460	* per IBM definition, every thread may only
4461	* have one MQ, this should be unique.
4462	*
4463	*@@added V0.9.2 (2000-03-08) [umoeller]
4464	*/
4465
4466	HMQ winhFindMsgQueue(PID pid, // in: process ID
4467	TID tid, // in: thread ID
4468	HAB* phab) // out: anchor block
4469	{
4470	HWND hwndThis = 0,
4471	rc = 0;
4472	HENUM henum = WinBeginEnumWindows(HWND_OBJECT);
4473	while ((hwndThis = WinGetNextWindow(henum)))
4474	{
4475	CHAR szClass[200];
4476	if (WinQueryClassName(hwndThis, sizeof(szClass), szClass))
4477	{
4478	if (!strcmp(szClass, "#32767"))
4479	{
4480	// message queue window:
4481	PID pidWin = 0;
4482	TID tidWin = 0;
4483	WinQueryWindowProcess(hwndThis,
4484	&pidWin,
4485	&tidWin);
4486	if ( (pidWin == pid)
4487	&& (tidWin == tid)
4488	)
4489	{
4490	// get HMQ from window words
4491	if (rc = WinQueryWindowULong(hwndThis, QWL_HMQ))
4492	if (phab)
4493	*phab = WinQueryAnchorBlock(hwndThis);
4494
4495	break;
4496	}
4497	}
4498	}
4499	}
4500	WinEndEnumWindows(henum);
4501
4502	return rc;
4503	}
4504
4505	/*
4506	*@@ winhFindHardErrorWindow:
4507	* this searches all children of HWND_OBJECT
4508	* for the PM hard error windows, which are
4509	* invisible most of the time. When a hard
4510	* error occurs, that window is made a child
4511	* of HWND_DESKTOP instead.
4512	*
4513	* Stolen from ProgramCommander/2 (C) Roman Stangl.
4514	*
4515	*@@added V0.9.3 (2000-04-27) [umoeller]
4516	*/
4517
4518	VOID winhFindPMErrorWindows(HWND *phwndHardError, // out: hard error window
4519	HWND *phwndSysError) // out: system error window
4520	{
4521	PID pidObject; // HWND_OBJECT's process and thread id
4522	TID tidObject;
4523	PID pidObjectChild; // HWND_OBJECT's child window process and thread id
4524	TID tidObjectChild;
4525	HENUM henumObject; // HWND_OBJECT enumeration handle
4526	HWND hwndObjectChild; // Window handle of current HWND_OBJECT child
4527	UCHAR ucClassName[32]; // Window class e.g. #1 for WC_FRAME
4528	CLASSINFO classinfoWindow; // Class info of current HWND_OBJECT child
4529
4530	*phwndHardError = NULLHANDLE;
4531	*phwndSysError = NULLHANDLE;
4532
4533	// query HWND_OBJECT's window process
4534	WinQueryWindowProcess(WinQueryObjectWindow(HWND_DESKTOP), &pidObject, &tidObject);
4535	// enumerate all child windows of HWND_OBJECT
4536	henumObject = WinBeginEnumWindows(HWND_OBJECT);
4537	while ((hwndObjectChild = WinGetNextWindow(henumObject)))
4538	{
4539	// see if the current HWND_OBJECT child window runs in the
4540	// process of HWND_OBJECT (PM)
4541	WinQueryWindowProcess(hwndObjectChild, &pidObjectChild, &tidObjectChild);
4542	if (pidObject == pidObjectChild)
4543	{
4544	// get the child window's data
4545	WinQueryClassName(hwndObjectChild,
4546	sizeof(ucClassName),
4547	(PCH)ucClassName);
4548	WinQueryClassInfo(WinQueryAnchorBlock(hwndObjectChild),
4549	(PSZ)ucClassName,
4550	&classinfoWindow);
4551	if ( (!strcmp((PSZ)ucClassName, "#1")
4552	\|\| (classinfoWindow.flClassStyle & CS_FRAME))
4553	)
4554	{
4555	// if the child window is a frame window and running in
4556	// HWND_OBJECT's (PM's) window process, it must be the
4557	// PM Hard Error or System Error window
4558	WinQueryClassName(WinWindowFromID(hwndObjectChild,
4559	FID_CLIENT),
4560	sizeof(ucClassName),
4561	(PSZ)ucClassName);
4562	if (!strcmp((PSZ)ucClassName, "PM Hard Error"))
4563	{
4564	*phwndHardError = hwndObjectChild;
4565	if (*phwndSysError)
4566	// we found the other one already:
4567	// stop searching, we got both
4568	break;
4569	}
4570	else
4571	{
4572	printf("Utility: Found System Error %08X\n", (int)hwndObjectChild);
4573	*phwndSysError = hwndObjectChild;
4574	if (*phwndHardError)
4575	// we found the other one already:
4576	// stop searching, we got both
4577	break;
4578	}
4579	}
4580	} // end if (pidObject == pidObjectChild)
4581	} // end while ((hwndObjectChild = WinGetNextWindow(henumObject)) != NULLHANDLE)
4582	WinEndEnumWindows(henumObject);
4583	}
4584
4585	/*
4586	*@@ winhCreateFakeDesktop:
4587	* this routine creates and displays a frameless window over
4588	* the whole screen in the color of PM's Desktop to fool the
4589	* user that all windows have been closed (which in fact might
4590	* not be the case).
4591	*
4592	* This window's background color is set to the Desktop's
4593	* (PM's one, not the WPS's one).
4594	*
4595	* Returns the HWND of this window.
4596	*/
4597
4598	HWND winhCreateFakeDesktop(HWND hwndSibling)
4599	{
4600	// presparam for background
4601	typedef struct _BACKGROUND
4602	{
4603	ULONG cb; // length of the aparam parameter, in bytes
4604	ULONG id; // attribute type identity
4605	ULONG cb2; // byte count of the ab parameter
4606	RGB rgb; // attribute value
4607	} BACKGROUND;
4608
4609	BACKGROUND background;
4610	LONG lDesktopColor;
4611
4612	// create fake desktop window = empty window with
4613	// the size of full screen
4614	lDesktopColor = WinQuerySysColor(HWND_DESKTOP,
4615	SYSCLR_BACKGROUND,
4616	0);
4617	background.cb = sizeof(background.id)
4618	+ sizeof(background.cb)
4619	+ sizeof(background.rgb);
4620	background.id = PP_BACKGROUNDCOLOR;
4621	background.cb2 = sizeof(RGB);
4622	background.rgb.bBlue = (CHAR1FROMMP(lDesktopColor));
4623	background.rgb.bGreen= (CHAR2FROMMP(lDesktopColor));
4624	background.rgb.bRed = (CHAR3FROMMP(lDesktopColor));
4625
4626	return WinCreateWindow(HWND_DESKTOP, // parent window
4627	WC_FRAME, // class name
4628	"", // window text
4629	WS_VISIBLE, // window style
4630	0, 0, // position and size
4631	G_cxScreen,
4632	G_cyScreen,
4633	NULLHANDLE, // owner window
4634	hwndSibling, // sibling window
4635	1, // window id
4636	NULL, // control data
4637	&background); // presentation parms
4638	}
4639
4640	/*
4641	*@@ winhAssertWarp4Notebook:
4642	* this takes hwndDlg as a notebook dialog page and
4643	* goes thru all its controls. If a control with an
4644	* ID <= udIdThreshold is found, this is assumed to
4645	* be a button which is to be given the BS_NOTEBOOKBUTTON
4646	* style. You should therefore give all your button
4647	* controls which should be moved such an ID.
4648	*
4649	* Note that this function will now automatically
4650	* find out the lowest y coordinate that was used
4651	* for a non-notebook button and move all controls
4652	* down accordingly. As a result, ulDownUnit must
4653	* no longer be specified (V0.9.19).
4654	*
4655	* This function is useful if you wish to create
4656	* notebook pages using dlgedit.exe which are compatible
4657	* with both Warp 3 and Warp 4. This should be executed
4658	* in WM_INITDLG of the notebook dlg function if the app
4659	* has determined that it is running on Warp 4.
4660	*
4661	*@@changed V0.9.16 (2002-02-02) [umoeller]: fixed entry fields
4662	*@@changed V0.9.19 (2002-04-24) [umoeller]: removed ulDownUnits
4663	*@@changed V0.9.19 (2002-05-02) [umoeller]: fix for combobox
4664	*/
4665
4666	BOOL winhAssertWarp4Notebook(HWND hwndDlg,
4667	USHORT usIdThreshold) // in: ID threshold
4668	{
4669	BOOL brc = FALSE;
4670
4671	if (doshIsWarp4())
4672	{
4673	LONG yLowest = 10000;
4674	HWND hwndItem;
4675	HENUM henum = 0;
4676	PSWP paswp,
4677	pswpThis;
4678	ULONG cWindows = 0,
4679	ul;
4680
4681	BOOL fIsVisible;
4682
4683	if (fIsVisible = WinIsWindowVisible(hwndDlg))
4684	// avoid flicker
4685	WinEnableWindowUpdate(hwndDlg, FALSE);
4686
4687	if (paswp = (PSWP)malloc(sizeof(SWP) * 100))
4688	{
4689	pswpThis = paswp;
4690
4691	// loop 1: set notebook buttons, find lowest y used
4692	henum = WinBeginEnumWindows(hwndDlg);
4693	while ((hwndItem = WinGetNextWindow(henum)))
4694	{
4695	USHORT usId = WinQueryWindowUShort(hwndItem, QWS_ID);
4696	// _Pmpf(("hwndItem: 0x%lX, ID: 0x%lX", hwndItem, usId));
4697	if (usId <= usIdThreshold)
4698	{
4699	// pushbutton to change:
4700	WinSetWindowBits(hwndItem,
4701	QWL_STYLE,
4702	BS_NOTEBOOKBUTTON, BS_NOTEBOOKBUTTON);
4703	brc = TRUE;
4704	}
4705	else
4706	{
4707	// no pushbutton to change:
4708	CHAR szClass[10];
4709
4710	WinQueryWindowPos(hwndItem, pswpThis);
4711
4712	// special handling for entry fields
4713	// V0.9.16 (2002-02-02) [umoeller]
4714	WinQueryClassName(hwndItem, sizeof(szClass), szClass);
4715	if (!strcmp(szClass, "#6"))
4716	{
4717	pswpThis->x += 3 * WinQuerySysValue(HWND_DESKTOP, SV_CXBORDER);
4718	pswpThis->y += 3 * WinQuerySysValue(HWND_DESKTOP, SV_CYBORDER);
4719	}
4720
4721	// check lowest y
4722	if ( (pswpThis->y < yLowest)
4723	// ignore combobox, this will distort everything
4724	// AGAIN ... sigh V0.9.19 (2002-05-02) [umoeller]
4725	&& (strcmp(szClass, "#2"))
4726	)
4727	yLowest = pswpThis->y ;
4728
4729	++pswpThis;
4730	if (++cWindows == 100)
4731	break;
4732	}
4733	} // end while ((hwndItem = WinGetNextWindow(henum)))
4734	WinEndEnumWindows(henum);
4735
4736	// now adjust window positions
4737	pswpThis = paswp;
4738	for (ul = 0;
4739	ul < cWindows;
4740	++ul, ++pswpThis)
4741	{
4742	pswpThis->y -= (yLowest - 8);
4743	// 8 is magic to match the lower border of the
4744	// standard WPS notebook pages V0.9.19 (2002-04-24) [umoeller]
4745	pswpThis->fl = SWP_MOVE;
4746	}
4747
4748	WinSetMultWindowPos(WinQueryAnchorBlock(hwndDlg),
4749	paswp,
4750	cWindows);
4751
4752	free(paswp);
4753	}
4754
4755	if (fIsVisible)
4756	WinShowWindow(hwndDlg, TRUE);
4757	}
4758
4759	return brc;
4760	}
4761
4762	/*
4763	*@@ winhDrawFormattedText:
4764	* this func takes a rectangle and draws pszText into
4765	* it, breaking the words as neccessary. The line spacing
4766	* is determined from the font currently selected in hps.
4767	*
4768	* As opposed to WinDrawText, this can draw several lines
4769	* at once, and format the _complete_ text according to the
4770	* flCmd parameter, which is like with WinDrawText.
4771	*
4772	* After this function returns, *prcl is modified like this:
4773	*
4774	* -- yTop and yBottom contain the upper and lower boundaries
4775	* which were needed to draw the text. This depends on
4776	* whether DT_TOP etc. were specified.
4777	* To get the height of the rectangle used, calculate the
4778	* delta between yTop and yBottom.
4779	*
4780	* -- xLeft and xRight are modified to contain the outmost
4781	* left and right coordinates which were needed to draw
4782	* the text. This will be set to the longest line which
4783	* was encountered.
4784	*
4785	* The following DT_* flags are supported:
4786	*
4787	* -- DT_LEFT, DT_CENTER, DT_RIGHT all work.
4788	*
4789	* -- Vertically however only DT_TOP is supported.
4790	*
4791	* -- You can specify DT_QUERYEXTENT to only have
4792	* these text boundaries calculated without actually
4793	* drawing.
4794	*
4795	* Note that DT_TEXTATTRS will always be added, so you
4796	* will want to call GpiSetColor before this.
4797	*
4798	* This returns the number of lines drawn.
4799	*
4800	*@@changed V0.9.0 [umoeller]: prcl.xLeft and xRight are now updated too upon return
4801	*/
4802
4803	ULONG winhDrawFormattedText(HPS hps, // in: presentation space; its settings
4804	// are used, but not altered
4805	PRECTL prcl, // in/out: rectangle to use for drawing
4806	// (modified)
4807	const char *pcszText, // in: text to draw (zero-terminated)
4808	ULONG flCmd) // in: DT_* flags like in WinDrawText; see remarks
4809	{
4810	PSZ p = (PSZ)pcszText;
4811	LONG lDrawn = 1,
4812	lTotalDrawn = 0,
4813	lLineCount = 0,
4814	lOrigYTop = prcl->yTop;
4815	ULONG ulTextLen = strlen(pcszText),
4816	ulCharHeight,
4817	flCmd2,
4818	xLeftmost = prcl->xRight,
4819	xRightmost = prcl->xLeft;
4820	RECTL rcl2;
4821
4822	flCmd2 = flCmd \| DT_WORDBREAK \| DT_TEXTATTRS;
4823
4824	ulCharHeight = gpihQueryLineSpacing(hps);
4825
4826	while ( (lDrawn)
4827	&& (lTotalDrawn < ulTextLen)
4828	)
4829	{
4830	memcpy(&rcl2, prcl, sizeof(rcl2));
4831	lDrawn = WinDrawText(hps,
4832	ulTextLen - lTotalDrawn,
4833	p,
4834	&rcl2,
4835	0,
4836	0, // colors
4837	flCmd2);
4838
4839	// update char counters
4840	p += lDrawn;
4841	lTotalDrawn += lDrawn;
4842
4843	// update x extents
4844	if (rcl2.xLeft < xLeftmost)
4845	xLeftmost = rcl2.xLeft;
4846	if (rcl2.xRight > xRightmost)
4847	xRightmost = rcl2.xRight;
4848
4849	// update y for next line
4850	prcl->yTop -= ulCharHeight;
4851
4852	// increase line count
4853	lLineCount++;
4854	}
4855
4856	prcl->xLeft = xLeftmost;
4857	prcl->xRight = xRightmost;
4858	prcl->yBottom = prcl->yTop;
4859	prcl->yTop = lOrigYTop;
4860
4861	return lLineCount;
4862	}
4863
4864	/*
4865	*@@ winhQuerySwitchList:
4866	* returns the switch list in a newly
4867	* allocated buffer. This does the
4868	* regular double WinQuerySwitchList
4869	* call to first get the no. of items
4870	* and then get the items.
4871	*
4872	* The no. of items can be found in
4873	* the returned SWBLOCK.cwsentry.
4874	*
4875	* Returns NULL on errors. Use
4876	* free() to free the return value.
4877	*
4878	*@@added V0.9.7 (2000-12-06) [umoeller]
4879	*/
4880
4881	PSWBLOCK winhQuerySwitchList(HAB hab)
4882	{
4883	ULONG cItems = WinQuerySwitchList(hab, NULL, 0);
4884	ULONG ulBufSize = (cItems * sizeof(SWENTRY)) + sizeof(HSWITCH);
4885	PSWBLOCK pSwBlock;
4886	if (pSwBlock = (PSWBLOCK)malloc(ulBufSize))
4887	{
4888	if (!(cItems = WinQuerySwitchList(hab, pSwBlock, ulBufSize)))
4889	{
4890	free(pSwBlock);
4891	pSwBlock = NULL;
4892	}
4893	}
4894
4895	return pSwBlock;
4896	}
4897
4898	typedef HSWITCH APIENTRY WINHSWITCHFROMHAPP(HAPP happ);
4899
4900	/*
4901	*@@ winhHSWITCHfromHAPP:
4902	* resolves and calls the undocumented
4903	* WinHSWITCHfromHAPP API.
4904	*
4905	*@@added V0.9.19 (2002-04-17) [umoeller]
4906	*/
4907
4908	HSWITCH winhHSWITCHfromHAPP(HAPP happ)
4909	{
4910	static WINHSWITCHFROMHAPP *pWinHSWITCHfromHAPP = NULL;
4911
4912	if (!pWinHSWITCHfromHAPP)
4913	// first call: import WinHSWITCHfromHAPP
4914	// WinHSWITCHfromHAPP PMMERGE.5199
4915	doshQueryProcAddr("PMMERGE",
4916	5199,
4917	(PFN*)&pWinHSWITCHfromHAPP);
4918
4919	if (pWinHSWITCHfromHAPP)
4920	return pWinHSWITCHfromHAPP(happ);
4921
4922	return NULLHANDLE;
4923	}
4924
4925	/*
4926	*@@ winhQueryTasklistWindow:
4927	* returns the window handle of the PM task list.
4928	*
4929	*@@added V0.9.7 (2000-12-07) [umoeller]
4930	*/
4931
4932	HWND winhQueryTasklistWindow(VOID)
4933	{
4934	SWBLOCK swblock;
4935
4936	// the tasklist has entry #0 in the SWBLOCK
4937	WinQuerySwitchList(NULLHANDLE, &swblock, sizeof(SWBLOCK));
4938
4939	return swblock.aswentry[0].swctl.hwnd;
4940	}
4941
4942	/*
4943	*@@ winhKillTasklist:
4944	* this will destroy the Tasklist (window list) window.
4945	* Note: you will only be able to get it back after a
4946	* reboot, not a WPS restart. Only for use at shutdown and such.
4947	* This trick by Uri J. Stern at
4948	* http://zebra.asta.fh-weingarten.de/os2/Snippets/Howt8881.HTML
4949	*/
4950
4951	VOID winhKillTasklist(VOID)
4952	{
4953	HWND hwndTasklist = winhQueryTasklistWindow();
4954	WinPostMsg(hwndTasklist,
4955	0x0454, // undocumented msg for killing tasklist
4956	NULL, NULL);
4957	}
4958
4959	// the following must be added for EMX (99-10-22) [umoeller]
4960	#ifndef NERR_BufTooSmall
4961	#define NERR_BASE 2100
4962	#define NERR_BufTooSmall (NERR_BASE+23)
4963	// the API return buffer is too small
4964	#endif
4965
4966	/*
4967	*@@ winhQueryPendingSpoolJobs:
4968	* returns the number of pending print jobs in the spooler
4969	* or 0 if none. Useful for testing before shutdown.
4970	*/
4971
4972	ULONG winhQueryPendingSpoolJobs(VOID)
4973	{
4974	// BOOL rcPending = FALSE;
4975	ULONG ulTotalJobCount = 0;
4976
4977	SPLERR splerr;
4978	USHORT jobCount;
4979	ULONG cbBuf;
4980	ULONG cTotal;
4981	ULONG cReturned;
4982	ULONG cbNeeded;
4983	ULONG ulLevel;
4984	ULONG i,j;
4985	PSZ pszComputerName;
4986	PBYTE pBuf = NULL;
4987	PPRQINFO3 prq;
4988	PPRJINFO2 prj2;
4989
4990	ulLevel = 4L;
4991	pszComputerName = (PSZ)NULL;
4992	splerr = SplEnumQueue(pszComputerName, ulLevel, pBuf, 0L, // cbBuf
4993	&cReturned, &cTotal,
4994	&cbNeeded, NULL);
4995	if ( (splerr == ERROR_MORE_DATA)
4996	\|\| (splerr == NERR_BufTooSmall)
4997	)
4998	{
4999	if (!DosAllocMem((PPVOID)&pBuf,
5000	cbNeeded,
5001	PAG_READ \| PAG_WRITE \| PAG_COMMIT))
5002	{
5003	cbBuf = cbNeeded;
5004	splerr = SplEnumQueue(pszComputerName, ulLevel, pBuf, cbBuf,
5005	&cReturned, &cTotal,
5006	&cbNeeded, NULL);
5007	if (splerr == NO_ERROR)
5008	{
5009	// set pointer to point to the beginning of the buffer
5010	prq = (PPRQINFO3)pBuf;
5011
5012	// cReturned has the count of the number of PRQINFO3 structures
5013	for (i = 0;
5014	i < cReturned;
5015	i++)
5016	{
5017	// save the count of jobs; there are this many PRJINFO2
5018	// structures following the PRQINFO3 structure
5019	jobCount = prq->cJobs;
5020	// _Pmpf(( "Job count in this queue is %d",jobCount ));
5021
5022	// increment the pointer past the PRQINFO3 structure
5023	prq++;
5024
5025	// set a pointer to point to the first PRJINFO2 structure
5026	prj2=(PPRJINFO2)prq;
5027	for (j = 0;
5028	j < jobCount;
5029	j++)
5030	{
5031	// increment the pointer to point to the next structure
5032	prj2++;
5033	// increase the job count, which we'll return
5034	ulTotalJobCount++;
5035
5036	} // endfor jobCount
5037
5038	// after doing all the job structures, prj2 points to the next
5039	// queue structure; set the pointer for a PRQINFO3 structure
5040	prq = (PPRQINFO3)prj2;
5041	} //endfor cReturned
5042	} // endif NO_ERROR
5043	DosFreeMem(pBuf);
5044	}
5045	} // end if Q level given
5046
5047	return ulTotalJobCount;
5048	}
5049
5050	/*
5051	*@@ winhSetNumLock:
5052	* this sets the NumLock key on or off, depending
5053	* on fState.
5054	*
5055	* Based on code from WarpEnhancer, (C) Achim Hasenmller.
5056	*
5057	*@@added V0.9.1 (99-12-18) [umoeller]
5058	*/
5059
5060	VOID winhSetNumLock(BOOL fState)
5061	{
5062	// BOOL fRestoreKBD = FALSE; // Assume we're not going to close Kbd
5063	BYTE KeyStateTable[256];
5064	ULONG ulActionTaken; // Used by DosOpen
5065	HFILE hKbd;
5066
5067	// read keyboard state table
5068	if (WinSetKeyboardStateTable(HWND_DESKTOP, &KeyStateTable[0],
5069	FALSE))
5070	{
5071	// first set the PM state
5072	if (fState)
5073	KeyStateTable[VK_NUMLOCK] \|= 0x01; // Turn numlock on
5074	else
5075	KeyStateTable[VK_NUMLOCK] &= 0xFE; // Turn numlock off
5076
5077	// set keyboard state table with new state values
5078	WinSetKeyboardStateTable(HWND_DESKTOP, &KeyStateTable[0], TRUE);
5079	}
5080
5081	// now set the OS/2 keyboard state
5082
5083	// try to open OS/2 keyboard driver
5084	if (!DosOpen("KBD$",
5085	&hKbd, &ulActionTaken,
5086	0, // cbFile
5087	FILE_NORMAL,
5088	OPEN_ACTION_FAIL_IF_NEW \| OPEN_ACTION_OPEN_IF_EXISTS,
5089	OPEN_SHARE_DENYNONE \| OPEN_ACCESS_READWRITE,
5090	NULL))
5091	{
5092	SHIFTSTATE ShiftState;
5093	ULONG DataLen = sizeof(SHIFTSTATE);
5094
5095	memset(&ShiftState, '\0', DataLen);
5096	DosDevIOCtl(hKbd, IOCTL_KEYBOARD, KBD_GETSHIFTSTATE,
5097	NULL, 0L, NULL,
5098	&ShiftState, DataLen, &DataLen);
5099
5100	if (fState)
5101	ShiftState.fsState \|= 0x0020; // turn NumLock on
5102	else
5103	ShiftState.fsState &= 0xFFDF; // turn NumLock off
5104
5105	DosDevIOCtl(hKbd, IOCTL_KEYBOARD, KBD_SETSHIFTSTATE,
5106	&ShiftState, DataLen, &DataLen,
5107	NULL, 0L, NULL);
5108
5109	// now close OS/2 keyboard driver
5110	DosClose(hKbd);
5111	}
5112	}
5113
5114	/*
5115	*@@ winhSetClipboardText:
5116	* sets the clipboard data to the given text,
5117	* replacing the current clipboard contents.
5118	*
5119	*@@added V1.0.0 (2002-08-28) [umoeller]
5120	*/
5121
5122	BOOL winhSetClipboardText(HAB hab,
5123	PCSZ pcsz,
5124	ULONG cbSize) // in: size of buffer INCLUDING null byte
5125	{
5126	BOOL fSuccess = FALSE;
5127
5128	if (WinOpenClipbrd(hab))
5129	{
5130	PSZ pszDest;
5131	if (!DosAllocSharedMem((PVOID*)&pszDest,
5132	NULL,
5133	cbSize,
5134	PAG_WRITE \| PAG_COMMIT \| OBJ_GIVEABLE))
5135	{
5136	memcpy(pszDest,
5137	pcsz,
5138	cbSize);
5139
5140	WinEmptyClipbrd(hab);
5141
5142	fSuccess = WinSetClipbrdData(hab, // anchor-block handle
5143	(ULONG)pszDest, // pointer to text data
5144	CF_TEXT, // data is in text format
5145	CFI_POINTER); // passing a pointer
5146
5147	// PMREF says (implicitly) it is not necessary to call
5148	// DosFreeMem. I hope that is correct.
5149	// V0.9.19 (2002-06-02) [umoeller]
5150	}
5151
5152	WinCloseClipbrd(hab);
5153	}
5154
5155	return fSuccess;
5156	}
5157
5158	/*
5159	*@@category: Helpers\PM helpers\Workplace Shell\WPS class list
5160	*/
5161
5162	/* ******************************************************************
5163	*
5164	* WPS Class List helpers
5165	*
5166	********************************************************************/
5167
5168	/*
5169	*@@ winhQueryWPSClassList:
5170	* this returns the WPS class list in a newly
5171	* allocated buffer. This is just a shortcut to
5172	* the usual double WinEnumObjectClasses call.
5173	*
5174	* The return value is actually of the POBJCLASS type,
5175	* so you better cast this manually. We declare this
5176	* this as PBYTE though because POBJCLASS requires
5177	* INCL_WINWORKPLACE.
5178	* See WinEnumObjectClasses() for details.
5179	*
5180	* Returns NULL on error. Use free()
5181	* to free the return value.
5182	*
5183	*@@added V0.9.0 [umoeller]
5184	*/
5185
5186	PBYTE winhQueryWPSClassList(VOID)
5187	{
5188	ULONG ulSize;
5189	POBJCLASS pObjClass = 0;
5190
5191	// get WPS class list size
5192	if (WinEnumObjectClasses(NULL, &ulSize))
5193	{
5194	// allocate buffer
5195	pObjClass = (POBJCLASS)malloc(ulSize + 1);
5196	// and load the classes into it
5197	WinEnumObjectClasses(pObjClass, &ulSize);
5198	}
5199
5200	return (PBYTE)pObjClass;
5201	}
5202
5203	/*
5204	*@@ winhQueryWPSClass:
5205	* this returns the POBJCLASS item if pszClass is registered
5206	* with the WPS or NULL if the class could not be found.
5207	*
5208	* The return value is actually of the POBJCLASS type,
5209	* so you better cast this manually. We declare this
5210	* this as PBYTE though because POBJCLASS requires
5211	* INCL_WINWORKPLACE.
5212	*
5213	* This takes as input the return value of winhQueryWPSClassList,
5214	* which you must call first.
5215	*
5216	* <B>Usage:</B>
5217	+ PBYTE pClassList = winhQueryWPSClassList(),
5218	+ pWPFolder;
5219	+ if (pClassList)
5220	+ {
5221	+ if (pWPFolder = winhQueryWPSClass(pClassList, "WPFolder"))
5222	+ ...
5223	+ free(pClassList);
5224	+ }
5225	*
5226	*@@added V0.9.0 [umoeller]
5227	*/
5228
5229	PBYTE winhQueryWPSClass(PBYTE pObjClass, // in: buffer returned by
5230	// winhQueryWPSClassList
5231	const char *pszClass) // in: class name to query
5232	{
5233	PBYTE pbReturn = 0;
5234
5235	POBJCLASS pocThis = (POBJCLASS)pObjClass;
5236	// now go thru the WPS class list
5237	while (pocThis)
5238	{
5239	if (!strcmp(pocThis->pszClassName, pszClass))
5240	{
5241	pbReturn = (PBYTE)pocThis;
5242	break;
5243	}
5244
5245	// next class
5246	pocThis = pocThis->pNext;
5247	} // end while (pocThis)
5248
5249	return pbReturn;
5250	}
5251
5252	/*
5253	*@@ winhRegisterClass:
5254	* this works just like WinRegisterObjectClass,
5255	* except that it returns a more meaningful
5256	* error code than just FALSE in case registering
5257	* fails.
5258	*
5259	* This returns NO_ERROR if the class was successfully
5260	* registered (WinRegisterObjectClass returned TRUE).
5261	*
5262	* Otherwise, we do a DosLoadModule if maybe the DLL
5263	* couldn't be loaded in the first place. If DosLoadModule
5264	* did not return NO_ERROR, this function returns that
5265	* return code, which can be:
5266	*
5267	* -- 2 ERROR_FILE_NOT_FOUND: pcszModule does not exist
5268	* -- 2 ERROR_FILE_NOT_FOUND
5269	* -- 3 ERROR_PATH_NOT_FOUND
5270	* -- 4 ERROR_TOO_MANY_OPEN_FILES
5271	* -- 5 ERROR_ACCESS_DENIED
5272	* -- 8 ERROR_NOT_ENOUGH_MEMORY
5273	* -- 11 ERROR_BAD_FORMAT
5274	* -- 26 ERROR_NOT_DOS_DISK (unknown media type)
5275	* -- 32 ERROR_SHARING_VIOLATION
5276	* -- 33 ERROR_LOCK_VIOLATION
5277	* -- 36 ERROR_SHARING_BUFFER_EXCEEDED
5278	* -- 95 ERROR_INTERRUPT (interrupted system call)
5279	* -- 108 ERROR_DRIVE_LOCKED (by another process)
5280	* -- 123 ERROR_INVALID_NAME (illegal character or FS name not valid)
5281	* -- 127 ERROR_PROC_NOT_FOUND (DosQueryProcAddr error)
5282	* -- 180 ERROR_INVALID_SEGMENT_NUMBER
5283	* -- 182 ERROR_INVALID_ORDINAL
5284	* -- 190 ERROR_INVALID_MODULETYPE (probably an application)
5285	* -- 191 ERROR_INVALID_EXE_SIGNATURE (probably not LX DLL)
5286	* -- 192 ERROR_EXE_MARKED_INVALID (by linker)
5287	* -- 194 ERROR_ITERATED_DATA_EXCEEDS_64K (in a DLL segment)
5288	* -- 195 ERROR_INVALID_MINALLOCSIZE
5289	* -- 196 ERROR_DYNLINK_FROM_INVALID_RING
5290	* -- 198 ERROR_INVALID_SEGDPL
5291	* -- 199 ERROR_AUTODATASEG_EXCEEDS_64K
5292	* -- 201 ERROR_RELOCSRC_CHAIN_EXCEEDS_SEGLIMIT
5293	* -- 206 ERROR_FILENAME_EXCED_RANGE (not matching 8+3 spec)
5294	* -- 295 ERROR_INIT_ROUTINE_FAILED (DLL init routine failed)
5295	*
5296	* In all these cases, pszBuf may contain a meaningful
5297	* error message from DosLoadModule, especially if an import
5298	* could not be resolved.
5299	*
5300	* Still worse, if DosLoadModule returned NO_ERROR, we
5301	* probably have some SOM internal error. A probable
5302	* reason is that the parent class of pcszClassName
5303	* is not installed, but that's WPS/SOM internal
5304	* and cannot be queried from outside the WPS context.
5305	*
5306	* In that case, ERROR_OPEN_FAILED (110) is returned.
5307	* That one sounded good to me. ;-)
5308	*/
5309
5310	APIRET winhRegisterClass(const char* pcszClassName, // in: e.g. "XFolder"
5311	const char* pcszModule, // in: e.g. "C:\XFOLDER\XFLDR.DLL"
5312	PSZ pszBuf, // out: error message from DosLoadModule
5313	ULONG cbBuf) // in: sizeof(*pszBuf), passed to DosLoadModule
5314	{
5315	APIRET arc = NO_ERROR;
5316
5317	if (!WinRegisterObjectClass((PSZ)pcszClassName, (PSZ)pcszModule))
5318	{
5319	// failed: do more error checking then, try DosLoadModule
5320	HMODULE hmod = NULLHANDLE;
5321	if (!(arc = DosLoadModule(pszBuf, cbBuf,
5322	(PSZ)pcszModule,
5323	&hmod)))
5324	{
5325	// DosLoadModule succeeded:
5326	// some SOM error then
5327	DosFreeModule(hmod);
5328	arc = ERROR_OPEN_FAILED;
5329	}
5330	}
5331	// else: ulrc still 0 (== no error)
5332
5333	return arc;
5334	}
5335
5336	/*
5337	*@@ winhIsClassRegistered:
5338	* quick one-shot function which checks if
5339	* a class is currently registered. Calls
5340	* winhQueryWPSClassList and winhQueryWPSClass
5341	* in turn.
5342	*
5343	*@@added V0.9.2 (2000-02-26) [umoeller]
5344	*/
5345
5346	BOOL winhIsClassRegistered(const char *pcszClass)
5347	{
5348	BOOL brc = FALSE;
5349	PBYTE pClassList;
5350
5351	if (pClassList = winhQueryWPSClassList())
5352	{
5353	if (winhQueryWPSClass(pClassList, pcszClass))
5354	brc = TRUE;
5355
5356	free(pClassList);
5357	}
5358
5359	return brc;
5360	}
5361
5362	/*
5363	*@@category: Helpers\PM helpers\Workplace Shell
5364	*/
5365
5366	/*
5367	*@@ winhResetWPS:
5368	* restarts the WPS using PrfReset. Returns
5369	* one of the following:
5370	*
5371	* -- 0: no error.
5372	* -- 1: PrfReset failed.
5373	* -- 2 or 4: PrfQueryProfile failed.
5374	* -- 3: malloc() failed.
5375	*
5376	*@@added V0.9.4 (2000-07-01) [umoeller]
5377	*/
5378
5379	ULONG winhResetWPS(HAB hab)
5380	{
5381	ULONG ulrc = 0;
5382	// find out current profile names
5383	PRFPROFILE Profiles;
5384	Profiles.cchUserName = Profiles.cchSysName = 0;
5385	// first query their file name lengths
5386	if (PrfQueryProfile(hab, &Profiles))
5387	{
5388	// allocate memory for filenames
5389	Profiles.pszUserName = (PSZ)malloc(Profiles.cchUserName);
5390	Profiles.pszSysName = (PSZ)malloc(Profiles.cchSysName);
5391
5392	if (Profiles.pszSysName)
5393	{
5394	// get filenames
5395	if (PrfQueryProfile(hab, &Profiles))
5396	{
5397
5398	// "change" INIs to these filenames:
5399	// THIS WILL RESET THE WPS
5400	if (PrfReset(hab, &Profiles) == FALSE)
5401	ulrc = 1;
5402	free(Profiles.pszSysName);
5403	free(Profiles.pszUserName);
5404	}
5405	else
5406	ulrc = 2;
5407	}
5408	else
5409	ulrc = 3;
5410	}
5411	else
5412	ulrc = 4;
5413
5414	return ulrc;
5415	}
5416

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