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source: trunk/src/user32/dc.cpp@ 2569

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Last change on this file since 2569 was 2569, checked in by sandervl, 26 years ago
SetWindowPos, UpdateWindow & WS_VISIBLE fixes/changes
File size: 47.2 KB

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1	/* $Id: dc.cpp,v 1.40 2000-01-29 20:46:52 sandervl Exp $ */
2
3	/*
4	* DC functions for USER32
5	*
6	* Project Odin Software License can be found in LICENSE.TXT
7	*
8	*/
9
10	/*****************************************************************************
11	* Includes *
12	*****************************************************************************/
13
14	#include <odin.h>
15
16	#define INCL_WIN
17	#define INCL_GPI
18	#define INCL_GREALL
19	#define INCL_DEV
20	#include <os2wrap.h>
21	//#include <pmddi.h>
22	#include <stdlib.h>
23
24	#include "win32type.h"
25	#include <winconst.h>
26	#include <misc.h>
27	#include <win32wbase.h>
28	#include <math.h>
29	#include <limits.h>
30	#include "oslibwin.h"
31	#include "dcdata.h"
32
33	#define INCLUDED_BY_DC
34	#include "dc.h"
35
36	#undef SEVERITY_ERROR
37	#include <winerror.h>
38
39	#ifndef DEVESC_SETPS
40	#define DEVESC_SETPS 49149L
41	#endif
42
43	#define FLOAT_TO_FIXED(x) ((FIXED) ((x) * 65536.0))
44	#define MICRO_HPS_TO_HDC(x) ((x) & 0xFFFFFFFE)
45
46	#define PMRECT_FROM_WINRECT( pmRect, winRect ) \
47	{ \
48	(pmRect).xLeft = (winRect).left; \
49	(pmRect).yBottom = (winRect).bottom; \
50	(pmRect).xRight = (winRect).right; \
51	(pmRect).yTop = (winRect).top; \
52	}
53
54	#define WINRECT_FROM_PMRECT( winRect, pmRect ) \
55	{ \
56	(winRect).left = (pmRect).xLeft; \
57	(winRect).top = (pmRect).yTop; \
58	(winRect).right = (pmRect).xRight; \
59	(winRect).bottom = (pmRect).yBottom; \
60	}
61
62	#define MEM_HPS_MAX 768
63
64	const XFORM_W XFORMIdentity = { 1.0, 0.0, 0.0, 1.0, 0, 0 };
65	const MATRIXLF matrixlfIdentity = { 0x10000, 0, 0, 0, 0x10000, 0, 0, 0, 0};
66
67	BOOL setPageXForm(Win32BaseWindow *wnd, pDCData pHps);
68	BOOL changePageXForm(Win32BaseWindow *wnd, pDCData pHps, PPOINTL pValue, int x, int y, PPOINTL pPrev);
69	LONG clientHeight(Win32BaseWindow *wnd, HWND hwnd, pDCData pHps);
70
71	//******************************************************************************
72	//******************************************************************************
73	void TestWideLine (pDCData pHps)
74	{
75	const LOGPEN_W *pLogPen;
76
77	pHps->isWideLine = FALSE;
78	pLogPen = pHps->penIsExtPen ?
79	&(pHps->lastPenObject->ExtPen.logpen) :
80	&(pHps->lastPenObject->Pen.logpen);
81
82	if (((pLogPen->lopnStyle & PS_STYLE_MASK_W) != PS_NULL_W) &&
83	(pLogPen->lopnWidth.x > 0))
84	{
85	POINTL aptl[2] = { 0, 0, pLogPen->lopnWidth.x, pLogPen->lopnWidth.x };
86
87	GpiConvert(pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, aptl);
88
89	ULONG dx = abs(aptl[0].x - aptl[1].x);
90	ULONG dy = abs(aptl[0].y - aptl[1].y);
91
92	pHps->isWideLine = (dx > 1) \|\| (dy > 1);
93	}
94	}
95	//******************************************************************************
96	//******************************************************************************
97	void Calculate1PixelDelta(pDCData pHps)
98	{
99	POINTL aptl[2] = {0, 0, 1, 1};
100
101	GpiConvert(pHps->hps, CVTC_DEVICE, CVTC_WORLD, 2, aptl);
102	pHps->worldYDeltaFor1Pixel = (int)(aptl[1].y - aptl[0].y);
103	pHps->worldXDeltaFor1Pixel = (int)(aptl[1].x - aptl[0].x); // 171182
104	}
105	//******************************************************************************
106	//******************************************************************************
107	int setMapMode(Win32BaseWindow *wnd, pDCData pHps, int mode)
108	{
109	int prevMode = 0;
110	ULONG flOptions;
111
112	switch (mode)
113	{
114	case MM_HIENGLISH_W : flOptions = PU_HIENGLISH; break;
115	case MM_LOENGLISH_W : flOptions = PU_LOENGLISH; break;
116	case MM_HIMETRIC_W : flOptions = PU_HIMETRIC ; break;
117	case MM_LOMETRIC_W : flOptions = PU_LOMETRIC ; break;
118	case MM_TEXT_W : flOptions = PU_PELS ; break;
119	case MM_TWIPS_W : flOptions = PU_TWIPS ; break;
120	case MM_ANISOTROPIC_W: flOptions = PU_PELS ; break;
121	case MM_ISOTROPIC_W : flOptions = PU_LOMETRIC ; break;
122	default:
123	O32_SetLastError (ERROR_INVALID_PARAMETER);
124	return FALSE;
125	}
126
127	prevMode = pHps->MapMode; /* store previous mode */
128	pHps->MapMode = mode;
129
130	if (mode == MM_TEXT_W)
131	{
132	pHps->viewportXExt =
133	pHps->viewportYExt = 1.0;
134	pHps->windowExt.cx =
135	pHps->windowExt.cy = 1;
136	}
137	else if (mode != MM_ANISOTROPIC_W)
138	{
139	RECTL rectl;
140	SIZEL sizel;
141	ULONG data[3];
142
143	data[0] = flOptions;
144	data[1] = data[2] = 0;
145
146	if (DevEscape(pHps->hdc ? pHps->hdc : pHps->hps, DEVESC_SETPS, 12, (PBYTE)data, 0, 0) == DEVESC_ERROR)
147	{
148	O32_SetLastError (ERROR_INVALID_PARAMETER);
149	return 0;
150	}
151
152	GpiQueryPageViewport(pHps->hps, &rectl);
153	pHps->viewportXExt = (double)rectl.xRight;
154	pHps->viewportYExt = -(double)rectl.yTop;
155
156	GreGetPageUnits(pHps->hdc? pHps->hdc : pHps->hps, &sizel);
157	pHps->windowExt.cx = sizel.cx;
158	pHps->windowExt.cy = sizel.cy;
159
160	data[0] = PU_PELS;
161	DevEscape(pHps->hdc ? pHps->hdc : pHps->hps, DEVESC_SETPS, 12, (PBYTE)data, 0, 0);
162	}
163
164	if (((prevMode != MM_ISOTROPIC_W) && (prevMode != MM_ANISOTROPIC_W)) &&
165	((mode == MM_ISOTROPIC_W) \|\| (mode == MM_ANISOTROPIC_W)))
166	{
167	if (pHps->lWndXExtSave && pHps->lWndYExtSave)
168	{
169	changePageXForm (wnd, pHps, (PPOINTL)&pHps->windowExt,
170	pHps->lWndXExtSave, pHps->lWndYExtSave, NULL );
171	pHps->lWndXExtSave = pHps->lWndYExtSave = 0;
172	}
173	if (pHps->lVwpXExtSave && pHps->lVwpYExtSave)
174	{
175	changePageXForm (wnd, pHps, NULL,
176	pHps->lVwpXExtSave, pHps->lVwpYExtSave, NULL );
177	pHps->lVwpXExtSave = pHps->lVwpYExtSave = 0;
178	}
179	}
180
181	setPageXForm(wnd, pHps);
182
183	return prevMode;
184	}
185	//******************************************************************************
186	//******************************************************************************
187	BOOL setPageXForm(Win32BaseWindow *wnd, pDCData pHps)
188	{
189	MATRIXLF mlf;
190	BOOL rc = TRUE;
191
192	pHps->height = clientHeight(wnd, 0, pHps) - 1;
193
194	double xScale = pHps->viewportXExt / (double)pHps->windowExt.cx;
195	double yScale = pHps->viewportYExt / (double)pHps->windowExt.cy;
196
197	mlf.fxM11 = FLOAT_TO_FIXED(xScale);
198	mlf.fxM12 = 0;
199	mlf.lM13 = 0;
200	mlf.fxM21 = 0;
201	mlf.fxM22 = FLOAT_TO_FIXED(yScale);
202	mlf.lM23 = 0;
203	mlf.lM31 = pHps->viewportOrg.x - (LONG)(pHps->windowOrg.x * xScale);
204	mlf.lM32 = pHps->viewportOrg.y - (LONG)(pHps->windowOrg.y * yScale);
205
206	pHps->isLeftLeft = mlf.fxM11 >= 0;
207	pHps->isTopTop = mlf.fxM22 >= 0;
208
209	BOOL bEnableYInversion = FALSE;
210	if ((mlf.fxM22 > 0) \|\|
211	((pHps->graphicsMode == GM_ADVANCED_W) &&
212	((pHps->MapMode == MM_ANISOTROPIC_W) \|\|
213	(pHps->MapMode == MM_ISOTROPIC_W))))
214	{
215	bEnableYInversion = TRUE;
216	}
217	else
218	{
219	bEnableYInversion = FALSE;
220	mlf.lM32 = pHps->HPStoHDCInversionHeight + pHps->height - mlf.lM32;
221	mlf.fxM22 = -mlf.fxM22;
222	}
223
224	if (!pHps->isMetaPS)
225	// if ((!pHps->isMetaPS) \|\|
226	// (pHps->pMetaFileObject && pHps->pMetaFileObject->isEnhanced()))
227	rc = GpiSetDefaultViewMatrix(pHps->hps, 8, &mlf, TRANSFORM_REPLACE);
228
229	if (bEnableYInversion)
230	GpiEnableYInversion(pHps->hps, pHps->height + pHps->HPStoHDCInversionHeight);
231	else
232	GpiEnableYInversion(pHps->hps, 0);
233
234	TestWideLine(pHps);
235	Calculate1PixelDelta(pHps);
236	return rc;
237	}
238	//******************************************************************************
239	//******************************************************************************
240	BOOL changePageXForm(Win32BaseWindow *wnd, pDCData pHps, PPOINTL pValue, int x, int y, PPOINTL pPrev)
241	{
242	BOOL result = FALSE;
243
244	if (pValue)
245	{
246	if (pPrev)
247	pPrev = pValue;
248
249	if ((pValue->x == x) && (pValue->y == y)) {
250	return TRUE;
251	}
252	pValue->x = x;
253	pValue->y = y;
254	}
255	else
256	{
257	if (pPrev)
258	{
259	pPrev->x = (int)pHps->viewportXExt;
260	pPrev->y = (int)pHps->viewportYExt;
261	}
262	pHps->viewportXExt = (double)x;
263	pHps->viewportYExt = (double)y;
264	}
265
266	if (pHps->MapMode == MM_ISOTROPIC_W)
267	{
268	double xExt = fabs(pHps->viewportXExt);
269	double yExt = fabs(pHps->viewportYExt);
270	double sf = fabs((double)pHps->windowExt.cx / pHps->windowExt.cy);
271
272	if (xExt > (yExt * sf))
273	{
274	xExt = yExt * sf;
275
276	if ((double)LONG_MAX <= xExt) return (result);
277
278	if (pHps->viewportXExt < 0.0)
279	pHps->viewportXExt = -xExt;
280	else
281	pHps->viewportXExt = xExt;
282	}
283	else
284	{
285	yExt = xExt / sf;
286
287	if ((double)LONG_MAX <= yExt) return (result);
288
289	if (pHps->viewportYExt < 0.0)
290	pHps->viewportYExt = -yExt;
291	else
292	pHps->viewportYExt = yExt;
293	}
294	}
295	result = setPageXForm(wnd, pHps);
296
297	return (result);
298	}
299	//******************************************************************************
300	//******************************************************************************
301	LONG clientHeight(Win32BaseWindow *wnd, HWND hwnd, pDCData pHps)
302	{
303	if ((hwnd == 0) && (pHps != 0))
304	hwnd = pHps->hwnd;
305
306	if ((hwnd != 0) \|\| (pHps == 0))
307	{
308	if (wnd)
309	return (wnd->getClientHeight());
310	else
311	return OSLibQueryScreenHeight();
312	}
313	else if (pHps->bitmapHandle)
314	{
315	return pHps->bitmapHeight;
316	}
317	else if (pHps->isMetaPS)
318	{
319	return 0;
320	}
321	else if (pHps->isPrinter)
322	{
323	return pHps->printPageHeight;
324	}
325	else
326	{
327	return MEM_HPS_MAX;
328	}
329	}
330	//******************************************************************************
331	//******************************************************************************
332	BOOL isYup (pDCData pHps)
333	{
334	if (((pHps->windowExt.cy < 0) && (pHps->viewportYExt > 0.0)) \|\|
335	((pHps->windowExt.cy > 0) && (pHps->viewportYExt < 0.0)))
336	{
337	if ((pHps->graphicsMode == GM_COMPATIBLE_W) \|\|
338	((pHps->graphicsMode == GM_ADVANCED_W) && (pHps->xform.eM22 >= 0.0)))
339	return TRUE;
340	}
341	else
342	{
343	if ((pHps->graphicsMode == GM_ADVANCED_W) && (pHps->xform.eM22 < 0.0))
344	return TRUE;
345	}
346	return FALSE;
347	}
348	//******************************************************************************
349	//******************************************************************************
350	INT revertDy (Win32BaseWindow *wnd, INT dy)
351	{
352	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
353	// if (wnd->isOwnDC() && wnd->getOwnDC())
354	if (wnd->isOwnDC())
355	{
356	pDCData pHps = (pDCData)GpiQueryDCData (wnd->getOwnDC());
357
358	if (pHps != NULLHANDLE)
359	if (!isYup (pHps))
360	dy = -dy;
361	}
362	else
363	{
364	dy = -dy;
365	}
366	return (dy);
367	}
368	//******************************************************************************
369	//******************************************************************************
370	HDC sendEraseBkgnd (Win32BaseWindow *wnd)
371	{
372	BOOL erased;
373	HWND hwnd;
374	HDC hdc;
375	HPS hps;
376	HRGN hrgnUpdate, hrgnOld, hrgnClip, hrgnCombined;
377	RECTL rectl = { 1, 1, 2, 2 };
378
379	hwnd = wnd->getOS2WindowHandle();
380	hps = WinGetPS(hwnd);
381
382	hrgnUpdate = GpiCreateRegion (hps, 1, &rectl);
383	WinQueryUpdateRegion (hwnd, hrgnUpdate);
384	hrgnClip = GpiQueryClipRegion (hps);
385
386	if (hrgnClip == NULLHANDLE)
387	{
388	GpiSetClipRegion (hps, hrgnUpdate, &hrgnOld);
389	}
390	else
391	{
392	hrgnCombined = GpiCreateRegion (hps, 1, &rectl);
393	GpiCombineRegion (hps, hrgnCombined, hrgnClip, hrgnUpdate, CRGN_AND);
394	GpiSetClipRegion (hps, hrgnCombined, &hrgnOld);
395	GpiDestroyRegion (hps, hrgnUpdate);
396	GpiDestroyRegion (hps, hrgnClip);
397	}
398	if (hrgnOld != NULLHANDLE)
399	GpiDestroyRegion (hps, hrgnOld);
400
401	hdc = HPSToHDC (hwnd, hps, NULL, NULL);
402
403	erased = wnd->MsgEraseBackGround (hdc);
404
405	DeleteHDC (hdc);
406	WinReleasePS (hps);
407
408	return erased;
409	}
410	//******************************************************************************
411	//******************************************************************************
412	void releaseOwnDC (HDC hps)
413	{
414	pDCData pHps = (pDCData)GpiQueryDCData ((HPS)hps);
415
416	if (pHps) {
417	if (pHps->hrgnHDC)
418	GpiDestroyRegion (pHps->hps, pHps->hrgnHDC);
419
420	GpiSetBitmap (pHps->hps, NULL);
421	O32_DeleteObject (pHps->nullBitmapHandle);
422	GpiDestroyPS(pHps->hps);
423
424	if (pHps->hdc)
425	DevCloseDC(pHps->hdc);
426
427	// how can a memory chunk allocated by GpiAllocateDCData freed by delete?
428	// delete pHps;
429	}
430	}
431	//******************************************************************************
432	//******************************************************************************
433	HDC WIN32API BeginPaint (HWND hWnd, PPAINTSTRUCT_W lpps)
434	{
435	HWND hwnd = hWnd ? hWnd : HWND_DESKTOP;
436	pDCData pHps = NULLHANDLE;
437	RECTL rect;
438	HPS hPS_ownDC = NULLHANDLE;
439
440	if ( !lpps )
441	{
442	dprintf (("USER32: BeginPaint %x invalid parameter %x", hWnd, lpps));
443	O32_SetLastError (ERROR_INVALID_PARAMETER);
444	return (HDC)NULLHANDLE;
445	}
446
447	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
448
449	if ((hwnd != HWND_DESKTOP) && wnd->isOwnDC())
450	{
451	hPS_ownDC = wnd->getOwnDC();
452	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
453	if(hPS_ownDC) {
454	pHps = (pDCData)GpiQueryDCData(hPS_ownDC);
455	if (!pHps)
456	{
457	dprintf (("USER32: BeginPaint %x invalid parameter %x", hWnd, lpps));
458	O32_SetLastError (ERROR_INVALID_PARAMETER);
459	return (HDC)NULLHANDLE;
460	}
461	}
462	}
463
464	HWND hwndClient = wnd->getOS2WindowHandle();
465	HPS hps = WinBeginPaint(hwndClient, hPS_ownDC, &rect);
466
467	if (!pHps)
468	{
469	HDC hdc = HPSToHDC (hwndClient, hps, NULL, NULL);
470	pHps = (pDCData)GpiQueryDCData(hps);
471	}
472
473	if (hPS_ownDC == 0)
474	setMapMode (wnd, pHps, MM_TEXT_W);
475	else
476	setPageXForm (wnd, pHps);
477
478	pHps->hdcType = TYPE_3;
479	lpps->hdc = (HDC)hps;
480
481	if(!wnd->isSuppressErase()) {
482	wnd->setSuppressErase(TRUE);
483	wnd->setEraseBkgnd (FALSE, !wnd->MsgEraseBackGround(lpps->hdc));
484	}
485	lpps->fErase = wnd->isPSErase();
486
487	if (!hPS_ownDC)
488	{
489	long height = wnd->getClientHeight();
490	rect.yTop = height - rect.yTop;
491	rect.yBottom = height - rect.yBottom;
492	}
493	else
494	{
495	rect.yTop--;
496	rect.yBottom--;
497	GpiConvert(pHps->hps, CVTC_DEVICE, CVTC_WORLD, 2, (PPOINTL)&rect);
498	}
499
500	WINRECT_FROM_PMRECT(lpps->rcPaint, rect);
501
502	O32_SetLastError(0);
503	dprintf(("USER32: BeginPaint %x -> hdc %x", hWnd, pHps->hps));
504	return (HDC)pHps->hps;
505	}
506	//******************************************************************************
507	//******************************************************************************
508	BOOL WIN32API EndPaint (HWND hwnd, const PAINTSTRUCT_W *pPaint)
509	{
510	dprintf (("USER32: EndPaint(%x)", hwnd));
511
512	if (!pPaint \|\| !pPaint->hdc )
513	return TRUE;
514
515	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
516
517	if (!wnd) goto exit;
518
519	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
520	if(wnd->isOwnDC() && wnd->getOwnDC())
521	// if(wnd->isOwnDC())
522	{
523	pDCData pHps = (pDCData)GpiQueryDCData((HPS)pPaint->hdc);
524	if (pHps && (pHps->hdcType == TYPE_3))
525	{
526	WinEndPaint (pHps->hps);
527	}
528	}
529	else
530	{
531	O32_EndPaint (HWND_DESKTOP, pPaint);
532	}
533	wnd->setSuppressErase(FALSE);
534
535	exit:
536	O32_SetLastError(0);
537	return TRUE;
538	}
539	//******************************************************************************
540	//******************************************************************************
541	BOOL WIN32API GetUpdateRect (HWND hwnd, LPRECT pRect, BOOL erase)
542	{
543	if (!hwnd)
544	{
545	O32_SetLastError (ERROR_INVALID_HANDLE);
546	return FALSE;
547	}
548
549	RECTL rectl;
550	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
551
552	if (!wnd)
553	{
554	O32_SetLastError (ERROR_INVALID_HANDLE);
555	return FALSE;
556	}
557
558	BOOL updateRegionExists = WinQueryUpdateRect (wnd->getOS2WindowHandle(), pRect ? &rectl : NULL);
559	if (!pRect) {
560	return (updateRegionExists);
561	}
562
563	if (updateRegionExists)
564	{
565	//CB: for PM empty rect is valid
566	if ((rectl.xLeft == rectl.xRight) \|\| (rectl.yTop == rectl.yBottom)) return FALSE;
567	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
568	// if (wnd->isOwnDC() && wnd->getOwnDC())
569	if (wnd->isOwnDC())
570	{
571	pDCData pHps = NULL;
572	pHps = (pDCData)GpiQueryDCData(wnd->getOwnDC());
573	if (!pHps)
574	{
575	O32_SetLastError (ERROR_INVALID_HANDLE);
576	return FALSE;
577	}
578	GpiConvert (pHps->hps, CVTC_DEVICE, CVTC_WORLD, 2, (PPOINTL)&rectl);
579	}
580	else
581	{
582	long height = wnd->getClientHeight();
583	rectl.yTop = height - rectl.yTop;
584	rectl.yBottom = height - rectl.yBottom;
585	}
586
587	if (pRect)
588	WINRECT_FROM_PMRECT (*pRect, rectl);
589
590	if (erase)
591	sendEraseBkgnd (wnd);
592	}
593	else
594	{
595	if (pRect)
596	pRect->left = pRect->top = pRect->right = pRect->bottom = 0;
597	}
598
599	return updateRegionExists;
600	}
601	//******************************************************************************
602	//functions for WM_NCPAINT
603	//******************************************************************************
604	INT SYSTEM GetOS2UpdateRgn(HWND hwnd,HRGN hrgn)
605	{
606	return O32_GetUpdateRgn(hwnd,hrgn,FALSE);
607	}
608	//******************************************************************************
609	//******************************************************************************
610	BOOL SYSTEM GetOS2UpdateRect(HWND hwnd,LPRECT pRect)
611	{
612	RECTL rectl;
613	BOOL updateRegionExists = WinQueryUpdateRect(hwnd,pRect ? &rectl:NULL);
614
615	if (!pRect)
616	return (updateRegionExists);
617
618	if (updateRegionExists)
619	{
620	//CB: for PM empty rect is valid
621	if ((rectl.xLeft == rectl.xRight) \|\| (rectl.yTop == rectl.yBottom)) return FALSE;
622	mapOS2ToWin32Rect(hwnd,(PRECTLOS2)&rectl,pRect);
623	} else
624	pRect->left = pRect->top = pRect->right = pRect->bottom = 0;
625
626	return updateRegionExists;
627	}
628	//******************************************************************************
629	//******************************************************************************
630	int WIN32API GetUpdateRgn (HWND hwnd, HRGN hrgn, BOOL erase)
631	{
632	LONG Complexity;
633
634	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
635
636	if (!wnd)
637	{
638	O32_SetLastError (ERROR_INVALID_HANDLE);
639	return ERROR_W;
640	}
641
642	Complexity = O32_GetUpdateRgn (wnd->getOS2WindowHandle(), hrgn, FALSE);
643	if (erase && (Complexity > NULLREGION_W)) sendEraseBkgnd (wnd);
644
645	return Complexity;
646	}
647	//******************************************************************************
648	// This implementation of GetDCEx supports
649	// DCX_WINDOW
650	// DCX_CACHE
651	// DCX_EXCLUDERGN (complex regions allowed)
652	// DCX_INTERSECTRGN (complex regions allowed)
653	//******************************************************************************
654	HDC WIN32API GetDCEx (HWND hwnd, HRGN hrgn, ULONG flags)
655	{
656	Win32BaseWindow *wnd = NULL;
657	HWND hWindow;
658	BOOL success;
659	pDCData pHps = NULL;
660	HPS hps = NULLHANDLE;
661	BOOL drawingAllowed = TRUE;
662	BOOL isWindowOwnDC;
663	BOOL creatingOwnDC = FALSE;
664	PS_Type psType;
665
666	if (hwnd)
667	{
668	wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
669	if(wnd == NULL) {
670	dprintf (("ERROR: User32: GetDCEx bad window handle %X!!!!!", hwnd));
671	O32_SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
672	return 0;
673	}
674	//SvL: Experimental change (doesn't work right)
675	#if 0
676	if(wnd->fHasParentDC() && wnd->getParent()) {
677	wnd = wnd->getParent();
678	}
679	#endif
680	if (flags & DCX_WINDOW_W)
681	hWindow = wnd->getOS2FrameWindowHandle();
682	else
683	hWindow = wnd->getOS2WindowHandle();
684	}
685	else
686	hWindow = HWND_DESKTOP;
687
688	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
689	// isWindowOwnDC = (((hWindow == HWND_DESKTOP) ? FALSE : (wnd->isOwnDC() && wnd->getOwnDC()))
690	isWindowOwnDC = (((hWindow == HWND_DESKTOP) ? FALSE : (wnd->isOwnDC()))
691	&& !(flags & DCX_CACHE_W\|DCX_WINDOW_W));
692
693	if (isWindowOwnDC)
694	{
695	hps = wnd->getOwnDC();
696	if (hps)
697	{
698	pDCData pHps = (pDCData)GpiQueryDCData (hps);
699	if (!pHps)
700	goto error;
701
702	setPageXForm (wnd, pHps);
703
704	pHps->hdcType = TYPE_1;
705	dprintf (("User32: GetDCEx hwnd %x (%x %x) -> wnd %x hdc %x", hwnd, hrgn, flags, wnd, hps));
706	return (HDC)hps;
707	}
708	else
709	creatingOwnDC = TRUE;
710	}
711
712	if (isWindowOwnDC)
713	{
714	SIZEL sizel = {0,0};
715	hps = GpiCreatePS (WinQueryAnchorBlock (hWindow),
716	WinOpenWindowDC (hWindow),
717	&sizel, PU_PELS \| GPIT_MICRO \| GPIA_ASSOC );
718	psType = MICRO;
719	}
720	else
721	{
722	if (hWindow == HWND_DESKTOP)
723	hps = WinGetScreenPS (hWindow);
724	else
725	hps = WinGetPS (hWindow);
726
727	psType = MICRO_CACHED;
728	}
729
730	if (!hps)
731	goto error;
732
733	HPSToHDC (hWindow, hps, NULL, NULL);
734	pHps = (pDCData)GpiQueryDCData (hps);
735
736	if ((flags & DCX_EXCLUDERGN_W) \|\| (flags & DCX_INTERSECTRGN_W))
737	{
738	ULONG BytesNeeded;
739	PRGNDATA_W RgnData;
740	PRECT pr;
741	int i;
742	RECTL rectl;
743
744	if (!hrgn)
745	goto error;
746
747	BytesNeeded = O32_GetRegionData (hrgn, 0, NULL);
748	RgnData = (PRGNDATA_W)_alloca (BytesNeeded);
749	if (RgnData == NULL)
750	goto error;
751	O32_GetRegionData (hrgn, BytesNeeded, RgnData);
752
753	i = RgnData->rdh.nCount;
754	pr = (PRECT)(RgnData->Buffer);
755
756	success = TRUE;
757	if (flags & DCX_EXCLUDERGN_W)
758	{
759	#if 0 //CB: todo
760	for (; (i > 0) && success; i--, pr++) {
761	LONG y = pr->yBottom;
762
763	pr->yBottom = height - pr->yTop;
764	pr->yTop = height - y;
765	success &= GpiExcludeClipRectangle (pHps->hps, pr);
766	}
767	#endif
768	} else //DCX_INTERSECTRGN_W
769	{
770	O32_SelectClipRgn(pHps->hps,hrgn); //CB: works so far
771	}
772	if (!success)
773	goto error;
774	}
775
776	if (creatingOwnDC)
777	wnd->setOwnDC ((HDC)hps);
778
779	pHps->psType = psType;
780	pHps->hdcType = TYPE_1;
781	GpiSetDrawControl (hps, DCTL_DISPLAY, drawingAllowed ? DCTL_ON : DCTL_OFF);
782
783	dprintf (("User32: GetDCEx hwnd %x (%x %x) -> hdc %x", hwnd, hrgn, flags, pHps->hps));
784	return (HDC)pHps->hps;
785
786	error:
787	/* Something went wrong; clean up
788	*/
789	if (pHps)
790	{
791	if (pHps->hps)
792	{
793	if(pHps->psType == MICRO_CACHED)
794	WinReleasePS(pHps->hps);
795	else
796	GpiDestroyPS(pHps->hps);
797	}
798
799	if (pHps->hdc) DevCloseDC(pHps->hdc);
800	if (pHps->hrgnHDC) GpiDestroyRegion(pHps->hps, pHps->hrgnHDC);
801
802	O32_DeleteObject (pHps->nullBitmapHandle);
803	}
804	O32_SetLastError (ERROR_INVALID_PARAMETER);
805	return NULL;
806	}
807	//******************************************************************************
808	//******************************************************************************
809	HDC WIN32API GetDC (HWND hwnd)
810	{
811	return GetDCEx (hwnd, NULL, 0);
812	}
813	//******************************************************************************
814	//******************************************************************************
815	HDC WIN32API GetWindowDC (HWND hwnd)
816	{
817	return GetDCEx (hwnd, NULL, DCX_WINDOW_W);
818	}
819	//******************************************************************************
820	//******************************************************************************
821	int WIN32API ReleaseDC (HWND hwnd, HDC hdc)
822	{
823	BOOL isOwnDC = FALSE;
824	int rc;
825
826	if (hwnd)
827	{
828	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
829	if(wnd == NULL) {
830	dprintf(("ERROR: ReleaseDC %x %x failed", hwnd, hdc));
831	return 0;
832	}
833	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
834	// isOwnDC = wnd->isOwnDC() && wnd->getOwnDC();
835	isOwnDC = wnd->isOwnDC() && (wnd->getOwnDC() == hdc);
836	}
837	if (isOwnDC)
838	rc = TRUE;
839	else
840	rc = O32_ReleaseDC (0, hdc);
841
842	dprintf(("ReleaseDC %x %x", hwnd, hdc));
843	return (rc);
844	}
845	//******************************************************************************
846	//******************************************************************************
847	BOOL WIN32API UpdateWindow (HWND hwnd)
848	{
849	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
850
851	if(!wnd) {
852	O32_SetLastError(ERROR_INVALID_WINDOW_HANDLE);
853	return FALSE;
854	}
855
856	dprintf (("User32: UpdateWindow hwnd %x", hwnd));
857
858	//SvL: Should update client window, not the frame
859	WinUpdateWindow(wnd->getOS2WindowHandle());
860
861	return (TRUE);
862	}
863	//******************************************************************************
864	// This implementation of RedrawWindow supports
865	// RDW_ERASE
866	// RDW_NOERASE
867	// RDW_INTERNALPAINT
868	// RDW_NOINTERNALPAINT
869	// RDW_INVALIDATE
870	// RDW_VALIDATE
871	// RDW_ERASENOW
872	// RDW_UPDATENOW
873	//******************************************************************************
874	BOOL WIN32API RedrawWindow(HWND hwnd, const RECT* pRect, HRGN hrgn, DWORD redraw)
875	{
876	Win32BaseWindow *wnd;
877
878	if (redraw & (RDW_FRAME_W \| RDW_NOFRAME_W))
879	{
880	O32_SetLastError (ERROR_NOT_SUPPORTED);
881	return FALSE;
882	}
883
884	if (hwnd == NULLHANDLE)
885	{
886	#if 1
887	// Don't do this for now (causes lots of desktop repaints in WordPad)
888	O32_SetLastError (ERROR_INVALID_PARAMETER);
889	return FALSE;
890	#else
891	hwnd = HWND_DESKTOP;
892	wnd = Win32BaseWindow::GetWindowFromOS2Handle(OSLIB_HWND_DESKTOP);
893
894	if (!wnd)
895	{
896	dprintf(("USER32:dc: RedrawWindow can't find desktop window %08xh\n",
897	hwnd));
898	O32_SetLastError (ERROR_INVALID_PARAMETER);
899	return FALSE;
900	}
901	#endif
902	}
903	else
904	{
905	wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
906
907	if (!wnd)
908	{
909	dprintf(("USER32:dc: RedrawWindow can't find window %08xh\n",
910	hwnd));
911	O32_SetLastError (ERROR_INVALID_PARAMETER);
912	return FALSE;
913	}
914	hwnd = wnd->getOS2WindowHandle();
915	}
916
917	BOOL IncludeChildren = redraw & RDW_ALLCHILDREN_W ? TRUE : FALSE;
918	BOOL success = TRUE;
919	HPS hpsTemp = NULLHANDLE;
920	HRGN hrgnTemp = NULLHANDLE;
921	RECTL rectl;
922
923	if (redraw & RDW_UPDATENOW_W) redraw &= ~RDW_ERASENOW_W;
924
925	if (redraw & RDW_NOERASE_W)
926	wnd->setEraseBkgnd (FALSE);
927
928	//SvL: Test
929	// if (redraw & RDW_UPDATENOW_W)
930	// wnd->setSuppressErase (FALSE);
931	// else if (redraw & RDW_ERASENOW_W)
932	// wnd->setSuppressErase (FALSE);
933
934	if (hrgn)
935	{
936	ULONG BytesNeeded;
937	PRGNDATA_W RgnData;
938	PRECTL pr;
939	int i;
940	LONG height = wnd ? wnd->getClientHeight() : OSLibQueryScreenHeight();
941
942	if (!hrgn)
943	goto error;
944
945	BytesNeeded = O32_GetRegionData (hrgn, 0, NULL);
946	RgnData = (PRGNDATA_W)_alloca (BytesNeeded);
947	if (RgnData == NULL)
948	goto error;
949	O32_GetRegionData (hrgn, BytesNeeded, RgnData);
950
951	pr = (PRECTL)(RgnData->Buffer);
952	for (i = RgnData->rdh.nCount; i > 0; i--, pr++) {
953	LONG temp = pr->yTop;
954	pr->yTop = height - pr->yBottom;
955	pr->yBottom = height - temp;
956	}
957
958	hpsTemp = WinGetScreenPS (HWND_DESKTOP);
959	hrgnTemp = GpiCreateRegion (hpsTemp, RgnData->rdh.nCount, (PRECTL)(RgnData->Buffer));
960	if (!hrgnTemp) goto error;
961	}
962	else if (pRect)
963	{
964	LONG height = wnd ? wnd->getClientHeight() : OSLibQueryScreenHeight();
965
966	PMRECT_FROM_WINRECT (rectl, *pRect);
967	rectl.yTop = height - rectl.yTop;
968	rectl.yBottom = height - rectl.yBottom;
969	}
970
971	if (redraw & RDW_INVALIDATE_W)
972	{
973	if (redraw & RDW_ERASE_W)
974	wnd->setEraseBkgnd (TRUE, TRUE);
975
976	if (!pRect && !hrgn)
977	success = WinInvalidateRect (hwnd, NULL, IncludeChildren);
978	else if (hrgn)
979	success = WinInvalidateRegion (hwnd, hrgnTemp, IncludeChildren);
980	else
981	success = WinInvalidateRect (hwnd, &rectl, IncludeChildren);
982	if (!success) goto error;
983	}
984	else if (redraw & RDW_VALIDATE_W)
985	{
986	if (WinQueryUpdateRect (hwnd, NULL))
987	{
988	if (!pRect && !hrgn)
989	success = WinValidateRect (hwnd, NULL, IncludeChildren);
990	else if (hrgn)
991	success = WinValidateRegion (hwnd, hrgnTemp, IncludeChildren);
992	else
993	success = WinValidateRect (hwnd, &rectl, IncludeChildren);
994	if (!success) goto error;
995	}
996	}
997
998	if (WinQueryUpdateRect (hwnd, NULL))
999	{
1000	if (redraw & RDW_UPDATENOW_W)
1001	wnd->MsgPaint (0, FALSE);
1002
1003	else if ((redraw & RDW_ERASE_W) && (redraw & RDW_ERASENOW_W))
1004	wnd->setEraseBkgnd (FALSE, !sendEraseBkgnd (wnd));
1005	}
1006	else if ((redraw & RDW_INTERNALPAINT_W) && !(redraw & RDW_INVALIDATE_W))
1007	{
1008	if (redraw & RDW_UPDATENOW_W)
1009	wnd->MsgPaint (0, FALSE);
1010	// else
1011	// WinPostMsg( hwnd, WM_VIRTUAL_INTERNALPAINT, MPVOID, MPVOID );
1012	}
1013
1014	error:
1015	/* clean up */
1016	if (hrgnTemp)
1017	GpiDestroyRegion (hpsTemp, hrgnTemp);
1018
1019	if (hpsTemp)
1020	WinReleasePS (hpsTemp);
1021
1022	//SvL: Test
1023	// if ((redraw & RDW_INVALIDATE_W) == 0)
1024	// wnd->setSuppressErase (FALSE);
1025	// else if ((redraw & RDW_ERASENOW_W) == RDW_ERASENOW_W)
1026	// wnd->setSuppressErase (TRUE);
1027
1028	if (!success)
1029	O32_SetLastError (ERROR_INVALID_PARAMETER);
1030
1031	return (success);
1032	}
1033	//******************************************************************************
1034	//******************************************************************************
1035	BOOL WIN32API InvalidateRect (HWND hwnd, const RECT *pRect, BOOL erase)
1036	{
1037	BOOL result;
1038
1039	result = RedrawWindow (hwnd, pRect, NULLHANDLE,
1040	RDW_ALLCHILDREN_W \| RDW_INVALIDATE_W \|
1041	(erase ? RDW_ERASE_W : 0) \|
1042	(hwnd == NULLHANDLE ? RDW_UPDATENOW_W : 0));
1043	return (result);
1044	}
1045	//******************************************************************************
1046	//******************************************************************************
1047	BOOL WIN32API InvalidateRgn (HWND hwnd, HRGN hrgn, BOOL erase)
1048	{
1049	BOOL result;
1050
1051	result = RedrawWindow (hwnd, NULL, hrgn,
1052	RDW_ALLCHILDREN_W \| RDW_INVALIDATE_W \|
1053	(erase ? RDW_ERASE_W : 0) \|
1054	(hwnd == NULLHANDLE ? RDW_UPDATENOW_W : 0));
1055	return (result);
1056	}
1057	//******************************************************************************
1058	//******************************************************************************
1059	BOOL setPMRgnIntoWinRgn (HRGN hrgnPM, HRGN hrgnWin, LONG height)
1060	{
1061	BOOL rc;
1062	HPS hps = WinGetScreenPS (HWND_DESKTOP);
1063	RGNRECT rgnRect;
1064	rgnRect.ircStart = 1;
1065	rgnRect.crc = 0;
1066	rgnRect.ulDirection = RECTDIR_LFRT_TOPBOT; // doesn't make a difference because we're getting them all
1067
1068	rc = GpiQueryRegionRects (hps, hrgnPM, NULL, &rgnRect, NULL);
1069
1070	if (rc && (rgnRect.crcReturned > 0))
1071	{
1072	PRECTL Rcls = new RECTL[rgnRect.crcReturned];
1073	PRECTL pRcl = Rcls;
1074
1075	if (Rcls != NULL)
1076	{
1077	rgnRect.crc = rgnRect.crcReturned;
1078	rc = GpiQueryRegionRects (hps, hrgnPM, NULL, &rgnRect, Rcls);
1079
1080	rc = O32_SetRectRgn (hrgnWin, pRcl->xLeft,
1081	pRcl->xRight,
1082	height - pRcl->yTop,
1083	height - pRcl->yBottom);
1084
1085	if (rgnRect.crcReturned > 1)
1086	{
1087	int i;
1088	HRGN temp;
1089	temp = O32_CreateRectRgn (0, 0, 1, 1);
1090
1091	for (i = 1, pRcl++; rc && (i < rgnRect.crcReturned); i++, pRcl++)
1092	{
1093	rc = O32_SetRectRgn (temp, pRcl->xLeft,
1094	pRcl->xRight,
1095	height - pRcl->yTop,
1096	height - pRcl->yBottom);
1097	rc &= O32_CombineRgn (hrgnWin, hrgnWin, temp, RGN_OR_W);
1098	}
1099	O32_DeleteObject (temp);
1100	}
1101	delete[] Rcls;
1102	}
1103	else
1104	{
1105	rc = FALSE;
1106	}
1107	}
1108	else
1109	{
1110	rc = O32_SetRectRgn (hrgnWin, 0, 0, 0, 0);
1111	}
1112
1113	WinReleasePS (hps);
1114	return (rc);
1115	}
1116	//******************************************************************************
1117	//******************************************************************************
1118	BOOL WIN32API ScrollDC (HDC hDC, int dx, int dy, const RECT *pScroll,
1119	const RECT *pClip, HRGN hrgnUpdate, LPRECT pRectUpdate)
1120	{
1121	BOOL rc = TRUE;
1122
1123	dprintf (("USER32: ScrollDC"));
1124
1125	if (!hDC)
1126	{
1127	return (FALSE);
1128	}
1129
1130	pDCData pHps = (pDCData)GpiQueryDCData ((HPS)hDC);
1131	HWND hwnd = pHps->hwnd;
1132	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
1133
1134	if ((hwnd == NULLHANDLE) \|\| !wnd)
1135	{
1136	return (FALSE);
1137	}
1138
1139	POINTL ptl[2] = { 0, 0, dx, dy };
1140
1141	GpiConvert (pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, ptl);
1142	dx = (int)(ptl[1].x - ptl[0].x);
1143	dy = (int)(ptl[1].y - ptl[0].y);
1144
1145	RECTL scrollRect;
1146	RECTL clipRect;
1147
1148	if (pClip)
1149	{
1150	clipRect.xLeft = min (pClip->left, pClip->right);
1151	clipRect.xRight = max (pClip->left, pClip->right);
1152	clipRect.yTop = max (pClip->top, pClip->bottom);
1153	clipRect.yBottom = min (pClip->top, pClip->bottom);
1154
1155	if ((pHps->graphicsMode == GM_COMPATIBLE_W) &&
1156	(clipRect.xLeft != clipRect.xRight) &&
1157	(clipRect.yBottom != clipRect.yTop))
1158	{
1159	if (abs((int)pHps->viewportXExt) <= abs((int)pHps->windowExt.cx))
1160	clipRect.xRight -= abs(pHps->worldXDeltaFor1Pixel);
1161	else
1162	clipRect.xLeft += abs(pHps->worldXDeltaFor1Pixel);
1163
1164	if (abs((int)pHps->viewportYExt) <= abs((int)pHps->windowExt.cy))
1165	clipRect.yTop -= abs(pHps->worldYDeltaFor1Pixel);
1166	else
1167	clipRect.yBottom += abs(pHps->worldYDeltaFor1Pixel);
1168	}
1169	GpiConvert (pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, (PPOINTL)&clipRect);
1170	if (clipRect.xRight < clipRect.xLeft) {
1171	ULONG temp = clipRect.xLeft;
1172	clipRect.xLeft = clipRect.xRight;
1173	clipRect.xRight = temp;
1174	}
1175	if (clipRect.yTop < clipRect.yBottom) {
1176	ULONG temp = clipRect.yBottom;
1177	clipRect.yBottom = clipRect.yTop;
1178	clipRect.yTop = temp;
1179	}
1180	}
1181
1182	if (pScroll)
1183	{
1184	scrollRect.xLeft = min (pScroll->left, pScroll->right);
1185	scrollRect.xRight = max (pScroll->left, pScroll->right);
1186	scrollRect.yTop = max (pScroll->top, pScroll->bottom);
1187	scrollRect.yBottom = min (pScroll->top, pScroll->bottom);
1188
1189	if ((pHps->graphicsMode == GM_COMPATIBLE_W) &&
1190	(scrollRect.xLeft != scrollRect.xRight) &&
1191	(scrollRect.yBottom != scrollRect.yTop))
1192	{
1193	if (abs((int)pHps->viewportXExt) <= abs((int)pHps->windowExt.cx))
1194	scrollRect.xRight -= abs(pHps->worldXDeltaFor1Pixel);
1195	else
1196	scrollRect.xLeft += abs(pHps->worldXDeltaFor1Pixel);
1197
1198	if (abs((int)pHps->viewportYExt) <= abs((int)pHps->windowExt.cy))
1199	scrollRect.yTop -= abs(pHps->worldYDeltaFor1Pixel);
1200	else
1201	scrollRect.yBottom += abs(pHps->worldYDeltaFor1Pixel);
1202	}
1203	GpiConvert (pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, (PPOINTL)&scrollRect);
1204	if (scrollRect.xRight < scrollRect.xLeft) {
1205	ULONG temp = scrollRect.xLeft;
1206	scrollRect.xLeft = scrollRect.xRight;
1207	scrollRect.xRight = temp;
1208	}
1209	if (scrollRect.yTop < scrollRect.yBottom) {
1210	ULONG temp = scrollRect.yBottom;
1211	scrollRect.yBottom = scrollRect.yTop;
1212	scrollRect.yTop = temp;
1213	}
1214	}
1215	RECTL rectlUpdate;
1216	HRGN hrgn;
1217
1218	LONG lComplexity = WinScrollWindow (hwnd, dx, dy, (pScroll) ? &scrollRect : NULL, (pClip) ? &clipRect : NULL, hrgn, &rectlUpdate, 0);
1219	if (lComplexity == RGN_ERROR)
1220	{
1221	return (FALSE);
1222	}
1223
1224	RECT winRectUpdate;
1225	LONG height = wnd->getClientHeight();
1226
1227	winRectUpdate.left = rectlUpdate.xLeft;
1228	winRectUpdate.right = rectlUpdate.xRight;
1229	winRectUpdate.top = height - rectlUpdate.yTop;
1230	winRectUpdate.bottom = height - rectlUpdate.yBottom;
1231
1232	if (pRectUpdate)
1233	*pRectUpdate = winRectUpdate;
1234
1235	if (hrgnUpdate)
1236	rc = setPMRgnIntoWinRgn (hrgn, hrgnUpdate, height);
1237
1238	return (rc);
1239	}
1240	//******************************************************************************
1241	//******************************************************************************
1242	#if 1
1243	BOOL WIN32API ScrollWindow(HWND hwnd, int dx, int dy, const RECT pScroll, const RECT pClip)
1244	{
1245	Win32BaseWindow *window;
1246	APIRET rc;
1247	RECTL clientRect;
1248	PRECT pClientRect;
1249	RECTL scrollRect;
1250	RECTL clipRect;
1251	PRECTL pScrollRect = NULL;
1252	PRECTL pClipRect = NULL;
1253	ULONG scrollFlags = SW_INVALIDATERGN;
1254
1255	window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1256	if(!window) {
1257	dprintf(("ScrollWindow, window %x not found", hwnd));
1258	return 0;
1259	}
1260	dprintf(("ScrollWindow %x %d %d %x %x", hwnd, dx, dy, pScroll, pClip));
1261
1262	pClientRect = window->getClientRectPtr();
1263	clientRect.xLeft = 0;
1264	clientRect.yBottom = 0;
1265	clientRect.xRight = pClientRect->right - pClientRect->left;
1266	clientRect.yTop = pClientRect->bottom - pClientRect->top;
1267
1268	if(pScroll) {
1269	mapWin32ToOS2Rect(window,(RECT *)pScroll, (PRECTLOS2)&scrollRect);
1270	pScrollRect = &scrollRect;
1271
1272	//Scroll rectangle relative to client area
1273	WinIntersectRect ((HAB) 0, pScrollRect, pScrollRect, &clientRect);
1274	}
1275	else scrollFlags \|= SW_SCROLLCHILDREN;
1276
1277	if(pClip) {
1278	mapWin32ToOS2Rect(window,(RECT *)pClip, (PRECTLOS2)&clipRect);
1279	pClipRect = &clipRect;
1280
1281	//Clip rectangle relative to client area
1282	WinIntersectRect ((HAB) 0, pClipRect, pClipRect, &clientRect);
1283	}
1284
1285	dy = revertDy (window, dy);
1286
1287	rc = WinScrollWindow(window->getOS2WindowHandle(), dx, dy,
1288	pScrollRect, pClipRect, NULLHANDLE,
1289	NULL, scrollFlags);
1290
1291	return (rc != RGN_ERROR);
1292	}
1293	#else
1294	BOOL WIN32API ScrollWindow(HWND hwnd, int dx, int dy, const RECT pScroll, const RECT pClip)
1295	{
1296	Win32BaseWindow *window;
1297	APIRET rc;
1298	RECTL clientRect;
1299	RECTL scrollRect;
1300	RECTL clipRect;
1301	PRECTL pScrollRect = NULL;
1302	PRECTL pClipRect = NULL;
1303	ULONG scrollFlags = SW_INVALIDATERGN;
1304
1305	window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1306	if(!window) {
1307	dprintf(("ScrollWindow, window %x not found", hwnd));
1308	return 0;
1309	}
1310	dprintf(("ScrollWindow %x %d %d %x %x", hwnd, dx, dy, pScroll, pClip));
1311	mapWin32ToOS2Rect(window,window->getClientRectPtr(),(PRECTLOS2)&clientRect);
1312	#if 0
1313	//Rectangle could be relative to parent window, so fix this
1314	if(clientRect.yBottom != 0) {
1315	clientRect.yTop -= clientRect.yBottom;
1316	clientRect.yBottom = 0;
1317	}
1318	if(clientRect.xLeft != 0) {
1319	clientRect.xRight -= clientRect.xLeft;
1320	clientRect.xLeft = 0;
1321	}
1322	#endif
1323	if(pScroll) {
1324	mapWin32ToOS2Rect(window,(RECT *)pScroll, (PRECTLOS2)&scrollRect);
1325	pScrollRect = &scrollRect;
1326
1327	//Scroll rectangle relative to client area
1328	pScrollRect->xLeft += clientRect.xLeft;
1329	pScrollRect->xRight += clientRect.xLeft;
1330	pScrollRect->yTop += clientRect.yBottom;
1331	pScrollRect->yBottom += clientRect.yBottom;
1332	WinIntersectRect ((HAB) 0, pScrollRect, pScrollRect, &clientRect);
1333	}
1334	else scrollFlags \|= SW_SCROLLCHILDREN;
1335
1336	if(pClip) {
1337	mapWin32ToOS2Rect(window,(RECT *)pClip, (PRECTLOS2)&clipRect);
1338	pClipRect = &clipRect;
1339
1340	//Clip rectangle relative to client area
1341	pClipRect->xLeft += clientRect.xLeft;
1342	pClipRect->xRight += clientRect.xLeft;
1343	pClipRect->yTop += clientRect.yBottom;
1344	pClipRect->yBottom += clientRect.yBottom;
1345	WinIntersectRect ((HAB) 0, pClipRect, pClipRect, &clientRect);
1346	}
1347
1348	dy = revertDy (window, dy);
1349
1350	rc = WinScrollWindow(window->getOS2WindowHandle(), dx, dy,
1351	pScrollRect, pClipRect, NULLHANDLE,
1352	NULL, scrollFlags);
1353
1354	return (rc != RGN_ERROR);
1355	}
1356	#endif
1357	//******************************************************************************
1358	//******************************************************************************
1359	INT WIN32API ScrollWindowEx(HWND hwnd, int dx, int dy, const RECT pScroll, const RECT pClip,
1360	HRGN hrgnUpdate, PRECT pRectUpdate, UINT scrollFlag)
1361	{
1362	Win32BaseWindow *window;
1363	APIRET rc;
1364	RECTL scrollRect;
1365	RECTL clipRect;
1366	ULONG scrollFlags = 0;
1367	int regionType = ERROR_W;
1368
1369	window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1370	if(!window) {
1371	dprintf(("ScrollWindowEx, window %x not found", hwnd));
1372	return 0;
1373	}
1374
1375	dprintf(("ScrollWindowEx %x %d %d %x %x", hwnd, dx, dy, pScroll, pClip));
1376
1377	dy = revertDy (window, dy);
1378
1379	if (scrollFlag & SW_INVALIDATE_W) scrollFlags \|= SW_INVALIDATERGN;
1380	if (scrollFlag & SW_SCROLLCHILDREN_W) scrollFlags \|= SW_SCROLLCHILDREN;
1381
1382	if(pScroll) mapWin32ToOS2Rect(window,(RECT *)pScroll, (PRECTLOS2)&scrollRect);
1383	if(pClip) mapWin32ToOS2Rect(window,(RECT *)pClip, (PRECTLOS2)&clipRect);
1384
1385	RECTL rectlUpdate;
1386	HRGN hrgn;
1387
1388	if (scrollFlag & SW_SMOOTHSCROLL_W)
1389	{
1390	INT time = (scrollFlag >> 16) & 0xFFFF;
1391
1392	//CB: todo, scroll in several steps
1393	// is time in ms? time <-> iteration count?
1394	}
1395
1396	LONG lComplexity = WinScrollWindow (window->getOS2WindowHandle(), dx, dy,
1397	(pScroll) ? &scrollRect : NULL,
1398	(pClip) ? &clipRect : NULL,
1399	hrgn, &rectlUpdate, scrollFlags);
1400	if (lComplexity == RGN_ERROR)
1401	{
1402	return ERROR_W;
1403	}
1404
1405	RECT winRectUpdate;
1406	LONG height = window->getClientHeight();
1407
1408	winRectUpdate.left = rectlUpdate.xLeft;
1409	winRectUpdate.right = rectlUpdate.xRight;
1410	winRectUpdate.top = height - rectlUpdate.yTop;
1411	winRectUpdate.bottom = height - rectlUpdate.yBottom;
1412
1413	if (pRectUpdate)
1414	*pRectUpdate = winRectUpdate;
1415
1416	if (hrgnUpdate)
1417	rc = setPMRgnIntoWinRgn (hrgn, hrgnUpdate, height);
1418
1419	if ((scrollFlag & SW_INVALIDATE_W) &&
1420	((lComplexity == RGN_RECT) \|\| (lComplexity == RGN_COMPLEX)))
1421	{
1422	rc = InvalidateRect (hwnd, &winRectUpdate, (scrollFlag & SW_ERASE_W) ? 1 : 0);
1423	if (rc == FALSE)
1424	{
1425	return (0);
1426	}
1427	}
1428
1429	switch (lComplexity)
1430	{
1431	case RGN_NULL:
1432	regionType = NULLREGION_W;
1433	break;
1434	case RGN_RECT:
1435	regionType = SIMPLEREGION_W;
1436	break;
1437	case RGN_COMPLEX:
1438	regionType = COMPLEXREGION_W;
1439	break;
1440	default:
1441	regionType = ERROR_W;
1442	break;
1443	}
1444
1445	return (regionType);
1446	}
1447	//******************************************************************************
1448	//******************************************************************************
1449	HWND WIN32API WindowFromDC(HDC hdc)
1450	{
1451	pDCData pHps = (pDCData)GpiQueryDCData( (HPS)hdc );
1452
1453	dprintf2(("USER32: WindowFromDC %x", hdc));
1454	if ( pHps )
1455	return Win32BaseWindow::OS2ToWin32Handle(pHps->hwnd);
1456	else
1457	return 0;
1458	}
1459	//******************************************************************************
1460	//******************************************************************************
1461	INT WIN32API ExcludeUpdateRgn( HDC hDC, HWND hWnd)
1462	{
1463	dprintf(("USER32: ExcludeUpdateRgn\n"));
1464	hWnd = Win32BaseWindow::Win32ToOS2Handle(hWnd);
1465
1466	return O32_ExcludeUpdateRgn(hDC,hWnd);
1467	}
1468	//******************************************************************************
1469	//******************************************************************************
1470	BOOL WIN32API ValidateRect( HWND hwnd, const RECT * lprc)
1471	{
1472	if(lprc) {
1473	dprintf(("USER32: ValidateRect %x (%d,%d)(%d,%d)", hwnd, lprc->left, lprc->top, lprc->right, lprc->bottom));
1474	}
1475	else dprintf(("USER32: ValidateRect %x", hwnd));
1476
1477	return RedrawWindow( hwnd, lprc, 0, RDW_VALIDATE_W \| RDW_NOCHILDREN_W \| (hwnd==0 ? RDW_UPDATENOW_W : 0));
1478	}
1479	//******************************************************************************
1480	//******************************************************************************
1481	BOOL WIN32API ValidateRgn( HWND hwnd, HRGN hrgn)
1482	{
1483	dprintf(("USER32: ValidateRgn %x %x", hwnd, hrgn));
1484	return RedrawWindow( hwnd, NULL, hrgn, RDW_VALIDATE_W \| RDW_NOCHILDREN_W \| (hwnd==0 ? RDW_UPDATENOW_W : 0));
1485	}
1486	/*****************************************************************************
1487	* Name : int WIN32API GetWindowRgn
1488	* Purpose : The GetWindowRgn function obtains a copy of the window region of a window.
1489	* Parameters: HWND hWnd handle to window whose window region is to be obtained
1490	* HRGN hRgn handle to region that receives a copy of the window region
1491	* Variables :
1492	* Result : NULLREGION, SIMPLEREGION, COMPLEXREGION, ERROR
1493	* Remark :
1494	* Status : UNTESTED STUB
1495	*
1496	* Author : Patrick Haller [Thu, 1998/02/26 11:55]
1497	*****************************************************************************/
1498
1499	int WIN32API GetWindowRgn(HWND hwnd, HRGN hRgn)
1500	{
1501	Win32BaseWindow *window;
1502	HRGN hWindowRegion;
1503
1504	window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1505	if(!window) {
1506	dprintf(("SetWindowContextHelpId, window %x not found", hwnd));
1507	O32_SetLastError(ERROR_INVALID_WINDOW_HANDLE);
1508	return 0;
1509	}
1510	dprintf(("USER32:GetWindowRgn (%x,%x)", hwnd, hRgn));
1511	hWindowRegion = window->GetWindowRegion();
1512
1513	return O32_CombineRgn(hRgn, hWindowRegion, 0, RGN_COPY_W);
1514	}
1515	/*****************************************************************************
1516	* Name : int WIN32API SetWindowRgn
1517	* Purpose : The SetWindowRgn function sets the window region of a window. The
1518	* window region determines the area within the window where the
1519	* operating system permits drawing. The operating system does not
1520	* display any portion of a window that lies outside of the window region
1521	* When this function is called, the system sends the WM_WINDOWPOSCHANGING and
1522	* WM_WINDOWPOSCHANGED messages to the window.
1523	*
1524	* Parameters: HWND hWnd handle to window whose window region is to be set
1525	* HRGN hRgn handle to region
1526	* BOOL bRedraw window redraw flag
1527	* Variables :
1528	* Result : If the function succeeds, the return value is non-zero.
1529	* If the function fails, the return value is zero.
1530	* Remark :
1531	* Status : UNTESTED STUB
1532	*
1533	* Author : Patrick Haller [Thu, 1998/02/26 11:55]
1534	*****************************************************************************/
1535
1536	int WIN32API SetWindowRgn(HWND hwnd,
1537	HRGN hRgn,
1538	BOOL bRedraw)
1539	{
1540	Win32BaseWindow *window;
1541	HRGN hWindowRegion;
1542
1543	window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1544	if(!window) {
1545	dprintf(("SetWindowContextHelpId, window %x not found", hwnd));
1546	O32_SetLastError(ERROR_INVALID_WINDOW_HANDLE);
1547	return 0;
1548	}
1549	dprintf(("USER32:SetWindowRgn (%x,%x,%d)", hwnd, hRgn, bRedraw));
1550	if(window->GetWindowRegion()) {
1551	O32_DeleteObject(window->GetWindowRegion());
1552	}
1553	window->SetWindowRegion(hRgn);
1554	if(bRedraw) {
1555	RedrawWindow(hwnd, 0, 0, RDW_UPDATENOW_W);
1556	}
1557	//TODO:
1558	// When this function is called, the system sends the WM_WINDOWPOSCHANGING and
1559	// WM_WINDOWPOSCHANGED messages to the window.
1560	return 1;
1561	}
1562	//******************************************************************************
1563	//******************************************************************************

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