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source: trunk/src/user32/dc.cpp@ 2552

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Last change on this file since 2552 was 2552, checked in by sandervl, 26 years ago
Don't call default frame handler for WM_ADJUSTWINDOWPOS
File size: 47.2 KB

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1	/* $Id: dc.cpp,v 1.38 2000-01-28 22:25:59 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	if(hWnd == 0x6800003a) {
448	hwnd = 0x6800003a;
449	}
450	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
451
452	if ((hwnd != HWND_DESKTOP) && wnd->isOwnDC())
453	{
454	hPS_ownDC = wnd->getOwnDC();
455	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
456	if(hPS_ownDC) {
457	pHps = (pDCData)GpiQueryDCData(hPS_ownDC);
458	if (!pHps)
459	{
460	dprintf (("USER32: BeginPaint %x invalid parameter %x", hWnd, lpps));
461	O32_SetLastError (ERROR_INVALID_PARAMETER);
462	return (HDC)NULLHANDLE;
463	}
464	}
465	}
466
467	HWND hwndClient = wnd->getOS2WindowHandle();
468	HPS hps = WinBeginPaint(hwndClient, hPS_ownDC, &rect);
469
470	if (!pHps)
471	{
472	HDC hdc = HPSToHDC (hwndClient, hps, NULL, NULL);
473	pHps = (pDCData)GpiQueryDCData(hps);
474	}
475
476	if (hPS_ownDC == 0)
477	setMapMode (wnd, pHps, MM_TEXT_W);
478	else
479	setPageXForm (wnd, pHps);
480
481	pHps->hdcType = TYPE_3;
482	lpps->hdc = (HDC)hps;
483
484	if(!wnd->isSuppressErase()) {
485	wnd->setSuppressErase(TRUE);
486	wnd->setEraseBkgnd (FALSE, !wnd->MsgEraseBackGround(lpps->hdc));
487	}
488	lpps->fErase = wnd->isPSErase();
489
490	if (!hPS_ownDC)
491	{
492	long height = wnd->getClientHeight();
493	rect.yTop = height - rect.yTop;
494	rect.yBottom = height - rect.yBottom;
495	}
496	else
497	{
498	rect.yTop--;
499	rect.yBottom--;
500	GpiConvert(pHps->hps, CVTC_DEVICE, CVTC_WORLD, 2, (PPOINTL)&rect);
501	}
502
503	WINRECT_FROM_PMRECT(lpps->rcPaint, rect);
504
505	O32_SetLastError(0);
506	dprintf(("USER32: BeginPaint %x -> hdc %x", hWnd, pHps->hps));
507	return (HDC)pHps->hps;
508	}
509	//******************************************************************************
510	//******************************************************************************
511	BOOL WIN32API EndPaint (HWND hwnd, const PAINTSTRUCT_W *pPaint)
512	{
513	dprintf (("USER32: EndPaint(%x)", hwnd));
514
515	if (!pPaint \|\| !pPaint->hdc )
516	return TRUE;
517
518	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
519
520	if (!wnd) goto exit;
521
522	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
523	if(wnd->isOwnDC() && wnd->getOwnDC())
524	// if(wnd->isOwnDC())
525	{
526	pDCData pHps = (pDCData)GpiQueryDCData((HPS)pPaint->hdc);
527	if (pHps && (pHps->hdcType == TYPE_3))
528	{
529	WinEndPaint (pHps->hps);
530	}
531	}
532	else
533	{
534	O32_EndPaint (HWND_DESKTOP, pPaint);
535	}
536	wnd->setSuppressErase(FALSE);
537
538	exit:
539	O32_SetLastError(0);
540	return TRUE;
541	}
542	//******************************************************************************
543	//******************************************************************************
544	BOOL WIN32API GetUpdateRect (HWND hwnd, LPRECT pRect, BOOL erase)
545	{
546	if (!hwnd)
547	{
548	O32_SetLastError (ERROR_INVALID_HANDLE);
549	return FALSE;
550	}
551
552	RECTL rectl;
553	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
554
555	if (!wnd)
556	{
557	O32_SetLastError (ERROR_INVALID_HANDLE);
558	return FALSE;
559	}
560
561	BOOL updateRegionExists = WinQueryUpdateRect (wnd->getOS2WindowHandle(), pRect ? &rectl : NULL);
562	if (!pRect) {
563	return (updateRegionExists);
564	}
565
566	if (updateRegionExists)
567	{
568	//CB: for PM empty rect is valid
569	if ((rectl.xLeft == rectl.xRight) \|\| (rectl.yTop == rectl.yBottom)) return FALSE;
570	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
571	// if (wnd->isOwnDC() && wnd->getOwnDC())
572	if (wnd->isOwnDC())
573	{
574	pDCData pHps = NULL;
575	pHps = (pDCData)GpiQueryDCData(wnd->getOwnDC());
576	if (!pHps)
577	{
578	O32_SetLastError (ERROR_INVALID_HANDLE);
579	return FALSE;
580	}
581	GpiConvert (pHps->hps, CVTC_DEVICE, CVTC_WORLD, 2, (PPOINTL)&rectl);
582	}
583	else
584	{
585	long height = wnd->getClientHeight();
586	rectl.yTop = height - rectl.yTop;
587	rectl.yBottom = height - rectl.yBottom;
588	}
589
590	if (pRect)
591	WINRECT_FROM_PMRECT (*pRect, rectl);
592
593	if (erase)
594	sendEraseBkgnd (wnd);
595	}
596	else
597	{
598	if (pRect)
599	pRect->left = pRect->top = pRect->right = pRect->bottom = 0;
600	}
601
602	return updateRegionExists;
603	}
604	//******************************************************************************
605	//functions for WM_NCPAINT
606	//******************************************************************************
607	INT SYSTEM GetOS2UpdateRgn(HWND hwnd,HRGN hrgn)
608	{
609	return O32_GetUpdateRgn(hwnd,hrgn,FALSE);
610	}
611	//******************************************************************************
612	//******************************************************************************
613	BOOL SYSTEM GetOS2UpdateRect(HWND hwnd,LPRECT pRect)
614	{
615	RECTL rectl;
616	BOOL updateRegionExists = WinQueryUpdateRect(hwnd,pRect ? &rectl:NULL);
617
618	if (!pRect)
619	return (updateRegionExists);
620
621	if (updateRegionExists)
622	{
623	//CB: for PM empty rect is valid
624	if ((rectl.xLeft == rectl.xRight) \|\| (rectl.yTop == rectl.yBottom)) return FALSE;
625	mapOS2ToWin32Rect(hwnd,(PRECTLOS2)&rectl,pRect);
626	} else
627	pRect->left = pRect->top = pRect->right = pRect->bottom = 0;
628
629	return updateRegionExists;
630	}
631	//******************************************************************************
632	//******************************************************************************
633	int WIN32API GetUpdateRgn (HWND hwnd, HRGN hrgn, BOOL erase)
634	{
635	LONG Complexity;
636
637	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
638
639	if (!wnd)
640	{
641	O32_SetLastError (ERROR_INVALID_HANDLE);
642	return ERROR_W;
643	}
644
645	Complexity = O32_GetUpdateRgn (wnd->getOS2WindowHandle(), hrgn, FALSE);
646	if (erase && (Complexity > NULLREGION_W)) sendEraseBkgnd (wnd);
647
648	return Complexity;
649	}
650	//******************************************************************************
651	// This implementation of GetDCEx supports
652	// DCX_WINDOW
653	// DCX_CACHE
654	// DCX_EXCLUDERGN (complex regions allowed)
655	// DCX_INTERSECTRGN (complex regions allowed)
656	//******************************************************************************
657	HDC WIN32API GetDCEx (HWND hwnd, HRGN hrgn, ULONG flags)
658	{
659	Win32BaseWindow *wnd = NULL;
660	HWND hWindow;
661	BOOL success;
662	pDCData pHps = NULL;
663	HPS hps = NULLHANDLE;
664	BOOL drawingAllowed = TRUE;
665	BOOL isWindowOwnDC;
666	BOOL creatingOwnDC = FALSE;
667	PS_Type psType;
668
669	if (hwnd)
670	{
671	wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
672	if(wnd == NULL) {
673	dprintf (("ERROR: User32: GetDCEx bad window handle %X!!!!!", hwnd));
674	O32_SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
675	return 0;
676	}
677	//SvL: Experimental change (doesn't work right)
678	#if 0
679	if(wnd->fHasParentDC() && wnd->getParent()) {
680	wnd = wnd->getParent();
681	}
682	#endif
683	if (flags & DCX_WINDOW_W)
684	hWindow = wnd->getOS2FrameWindowHandle();
685	else
686	hWindow = wnd->getOS2WindowHandle();
687	}
688	else
689	hWindow = HWND_DESKTOP;
690
691	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
692	// isWindowOwnDC = (((hWindow == HWND_DESKTOP) ? FALSE : (wnd->isOwnDC() && wnd->getOwnDC()))
693	isWindowOwnDC = (((hWindow == HWND_DESKTOP) ? FALSE : (wnd->isOwnDC()))
694	&& !(flags & DCX_CACHE_W\|DCX_WINDOW_W));
695
696	if (isWindowOwnDC)
697	{
698	hps = wnd->getOwnDC();
699	if (hps)
700	{
701	pDCData pHps = (pDCData)GpiQueryDCData (hps);
702	if (!pHps)
703	goto error;
704
705	setPageXForm (wnd, pHps);
706
707	pHps->hdcType = TYPE_1;
708	dprintf (("User32: GetDCEx hwnd %x (%x %x) -> wnd %x hdc %x", hwnd, hrgn, flags, wnd, hps));
709	return (HDC)hps;
710	}
711	else
712	creatingOwnDC = TRUE;
713	}
714
715	if (isWindowOwnDC)
716	{
717	SIZEL sizel = {0,0};
718	hps = GpiCreatePS (WinQueryAnchorBlock (hWindow),
719	WinOpenWindowDC (hWindow),
720	&sizel, PU_PELS \| GPIT_MICRO \| GPIA_ASSOC );
721	psType = MICRO;
722	}
723	else
724	{
725	if (hWindow == HWND_DESKTOP)
726	hps = WinGetScreenPS (hWindow);
727	else
728	hps = WinGetPS (hWindow);
729
730	psType = MICRO_CACHED;
731	}
732
733	if (!hps)
734	goto error;
735
736	HPSToHDC (hWindow, hps, NULL, NULL);
737	pHps = (pDCData)GpiQueryDCData (hps);
738
739	if ((flags & DCX_EXCLUDERGN_W) \|\| (flags & DCX_INTERSECTRGN_W))
740	{
741	ULONG BytesNeeded;
742	PRGNDATA_W RgnData;
743	PRECT pr;
744	int i;
745	RECTL rectl;
746
747	if (!hrgn)
748	goto error;
749
750	BytesNeeded = O32_GetRegionData (hrgn, 0, NULL);
751	RgnData = (PRGNDATA_W)_alloca (BytesNeeded);
752	if (RgnData == NULL)
753	goto error;
754	O32_GetRegionData (hrgn, BytesNeeded, RgnData);
755
756	i = RgnData->rdh.nCount;
757	pr = (PRECT)(RgnData->Buffer);
758
759	success = TRUE;
760	if (flags & DCX_EXCLUDERGN_W)
761	{
762	#if 0 //CB: todo
763	for (; (i > 0) && success; i--, pr++) {
764	LONG y = pr->yBottom;
765
766	pr->yBottom = height - pr->yTop;
767	pr->yTop = height - y;
768	success &= GpiExcludeClipRectangle (pHps->hps, pr);
769	}
770	#endif
771	} else //DCX_INTERSECTRGN_W
772	{
773	O32_SelectClipRgn(pHps->hps,hrgn); //CB: works so far
774	}
775	if (!success)
776	goto error;
777	}
778
779	if (creatingOwnDC)
780	wnd->setOwnDC ((HDC)hps);
781
782	pHps->psType = psType;
783	pHps->hdcType = TYPE_1;
784	GpiSetDrawControl (hps, DCTL_DISPLAY, drawingAllowed ? DCTL_ON : DCTL_OFF);
785
786	dprintf (("User32: GetDCEx hwnd %x (%x %x) -> hdc %x", hwnd, hrgn, flags, pHps->hps));
787	return (HDC)pHps->hps;
788
789	error:
790	/* Something went wrong; clean up
791	*/
792	if (pHps)
793	{
794	if (pHps->hps)
795	{
796	if(pHps->psType == MICRO_CACHED)
797	WinReleasePS(pHps->hps);
798	else
799	GpiDestroyPS(pHps->hps);
800	}
801
802	if (pHps->hdc) DevCloseDC(pHps->hdc);
803	if (pHps->hrgnHDC) GpiDestroyRegion(pHps->hps, pHps->hrgnHDC);
804
805	O32_DeleteObject (pHps->nullBitmapHandle);
806	}
807	O32_SetLastError (ERROR_INVALID_PARAMETER);
808	return NULL;
809	}
810	//******************************************************************************
811	//******************************************************************************
812	HDC WIN32API GetDC (HWND hwnd)
813	{
814	return GetDCEx (hwnd, NULL, 0);
815	}
816	//******************************************************************************
817	//******************************************************************************
818	HDC WIN32API GetWindowDC (HWND hwnd)
819	{
820	return GetDCEx (hwnd, NULL, DCX_WINDOW_W);
821	}
822	//******************************************************************************
823	//******************************************************************************
824	int WIN32API ReleaseDC (HWND hwnd, HDC hdc)
825	{
826	BOOL isOwnDC = FALSE;
827	int rc;
828
829	if (hwnd)
830	{
831	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
832	if(wnd == NULL) {
833	dprintf(("ERROR: ReleaseDC %x %x failed", hwnd, hdc));
834	return 0;
835	}
836	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
837	// isOwnDC = wnd->isOwnDC() && wnd->getOwnDC();
838	isOwnDC = wnd->isOwnDC() && (wnd->getOwnDC() == hdc);
839	}
840	if (isOwnDC)
841	rc = TRUE;
842	else
843	rc = O32_ReleaseDC (0, hdc);
844
845	dprintf(("ReleaseDC %x %x", hwnd, hdc));
846	return (rc);
847	}
848	//******************************************************************************
849	//******************************************************************************
850	BOOL WIN32API UpdateWindow (HWND hwnd)
851	{
852	if (!hwnd)
853	return FALSE;
854
855	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
856
857	dprintf (("User32: UpdateWindow hwnd %x -> wnd %x", hwnd, wnd));
858
859	#if 0
860	if (WinQueryUpdateRect (wnd->getOS2WindowHandle(), NULL))
861	sendEraseBkgnd (wnd);
862	#endif
863
864	WinUpdateWindow(wnd->getOS2FrameWindowHandle());
865
866	return (TRUE);
867	}
868	//******************************************************************************
869	// This implementation of RedrawWindow supports
870	// RDW_ERASE
871	// RDW_NOERASE
872	// RDW_INTERNALPAINT
873	// RDW_NOINTERNALPAINT
874	// RDW_INVALIDATE
875	// RDW_VALIDATE
876	// RDW_ERASENOW
877	// RDW_UPDATENOW
878	//******************************************************************************
879	BOOL WIN32API RedrawWindow(HWND hwnd, const RECT* pRect, HRGN hrgn, DWORD redraw)
880	{
881	Win32BaseWindow *wnd;
882
883	if (redraw & (RDW_FRAME_W \| RDW_NOFRAME_W))
884	{
885	O32_SetLastError (ERROR_NOT_SUPPORTED);
886	return FALSE;
887	}
888
889	if (hwnd == NULLHANDLE)
890	{
891	#if 1
892	// Don't do this for now (causes lots of desktop repaints in WordPad)
893	O32_SetLastError (ERROR_INVALID_PARAMETER);
894	return FALSE;
895	#else
896	hwnd = HWND_DESKTOP;
897	wnd = Win32BaseWindow::GetWindowFromOS2Handle(OSLIB_HWND_DESKTOP);
898
899	if (!wnd)
900	{
901	dprintf(("USER32:dc: RedrawWindow can't find desktop window %08xh\n",
902	hwnd));
903	O32_SetLastError (ERROR_INVALID_PARAMETER);
904	return FALSE;
905	}
906	#endif
907	}
908	else
909	{
910	wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
911
912	if (!wnd)
913	{
914	dprintf(("USER32:dc: RedrawWindow can't find window %08xh\n",
915	hwnd));
916	O32_SetLastError (ERROR_INVALID_PARAMETER);
917	return FALSE;
918	}
919	hwnd = wnd->getOS2WindowHandle();
920	}
921
922	BOOL IncludeChildren = redraw & RDW_ALLCHILDREN_W ? TRUE : FALSE;
923	BOOL success = TRUE;
924	HPS hpsTemp = NULLHANDLE;
925	HRGN hrgnTemp = NULLHANDLE;
926	RECTL rectl;
927
928	if (redraw & RDW_UPDATENOW_W) redraw &= ~RDW_ERASENOW_W;
929
930	if (redraw & RDW_NOERASE_W)
931	wnd->setEraseBkgnd (FALSE);
932
933	//SvL: Test
934	// if (redraw & RDW_UPDATENOW_W)
935	// wnd->setSuppressErase (FALSE);
936	// else if (redraw & RDW_ERASENOW_W)
937	// wnd->setSuppressErase (FALSE);
938
939	if (hrgn)
940	{
941	ULONG BytesNeeded;
942	PRGNDATA_W RgnData;
943	PRECTL pr;
944	int i;
945	LONG height = wnd ? wnd->getClientHeight() : OSLibQueryScreenHeight();
946
947	if (!hrgn)
948	goto error;
949
950	BytesNeeded = O32_GetRegionData (hrgn, 0, NULL);
951	RgnData = (PRGNDATA_W)_alloca (BytesNeeded);
952	if (RgnData == NULL)
953	goto error;
954	O32_GetRegionData (hrgn, BytesNeeded, RgnData);
955
956	pr = (PRECTL)(RgnData->Buffer);
957	for (i = RgnData->rdh.nCount; i > 0; i--, pr++) {
958	LONG temp = pr->yTop;
959	pr->yTop = height - pr->yBottom;
960	pr->yBottom = height - temp;
961	}
962
963	hpsTemp = WinGetScreenPS (HWND_DESKTOP);
964	hrgnTemp = GpiCreateRegion (hpsTemp, RgnData->rdh.nCount, (PRECTL)(RgnData->Buffer));
965	if (!hrgnTemp) goto error;
966	}
967	else if (pRect)
968	{
969	LONG height = wnd ? wnd->getClientHeight() : OSLibQueryScreenHeight();
970
971	PMRECT_FROM_WINRECT (rectl, *pRect);
972	rectl.yTop = height - rectl.yTop;
973	rectl.yBottom = height - rectl.yBottom;
974	}
975
976	if (redraw & RDW_INVALIDATE_W)
977	{
978	if (redraw & RDW_ERASE_W)
979	wnd->setEraseBkgnd (TRUE, TRUE);
980
981	if (!pRect && !hrgn)
982	success = WinInvalidateRect (hwnd, NULL, IncludeChildren);
983	else if (hrgn)
984	success = WinInvalidateRegion (hwnd, hrgnTemp, IncludeChildren);
985	else
986	success = WinInvalidateRect (hwnd, &rectl, IncludeChildren);
987	if (!success) goto error;
988	}
989	else if (redraw & RDW_VALIDATE_W)
990	{
991	if (WinQueryUpdateRect (hwnd, NULL))
992	{
993	if (!pRect && !hrgn)
994	success = WinValidateRect (hwnd, NULL, IncludeChildren);
995	else if (hrgn)
996	success = WinValidateRegion (hwnd, hrgnTemp, IncludeChildren);
997	else
998	success = WinValidateRect (hwnd, &rectl, IncludeChildren);
999	if (!success) goto error;
1000	}
1001	}
1002
1003	if (WinQueryUpdateRect (hwnd, NULL))
1004	{
1005	if (redraw & RDW_UPDATENOW_W)
1006	wnd->MsgPaint (0, FALSE);
1007
1008	else if ((redraw & RDW_ERASE_W) && (redraw & RDW_ERASENOW_W))
1009	wnd->setEraseBkgnd (FALSE, !sendEraseBkgnd (wnd));
1010	}
1011	else if ((redraw & RDW_INTERNALPAINT_W) && !(redraw & RDW_INVALIDATE_W))
1012	{
1013	if (redraw & RDW_UPDATENOW_W)
1014	wnd->MsgPaint (0, FALSE);
1015	// else
1016	// WinPostMsg( hwnd, WM_VIRTUAL_INTERNALPAINT, MPVOID, MPVOID );
1017	}
1018
1019	error:
1020	/* clean up */
1021	if (hrgnTemp)
1022	GpiDestroyRegion (hpsTemp, hrgnTemp);
1023
1024	if (hpsTemp)
1025	WinReleasePS (hpsTemp);
1026
1027	//SvL: Test
1028	// if ((redraw & RDW_INVALIDATE_W) == 0)
1029	// wnd->setSuppressErase (FALSE);
1030	// else if ((redraw & RDW_ERASENOW_W) == RDW_ERASENOW_W)
1031	// wnd->setSuppressErase (TRUE);
1032
1033	if (!success)
1034	O32_SetLastError (ERROR_INVALID_PARAMETER);
1035
1036	return (success);
1037	}
1038	//******************************************************************************
1039	//******************************************************************************
1040	BOOL WIN32API InvalidateRect (HWND hwnd, const RECT *pRect, BOOL erase)
1041	{
1042	BOOL result;
1043
1044	result = RedrawWindow (hwnd, pRect, NULLHANDLE,
1045	RDW_ALLCHILDREN_W \| RDW_INVALIDATE_W \|
1046	(erase ? RDW_ERASE_W : 0) \|
1047	(hwnd == NULLHANDLE ? RDW_UPDATENOW_W : 0));
1048	return (result);
1049	}
1050	//******************************************************************************
1051	//******************************************************************************
1052	BOOL WIN32API InvalidateRgn (HWND hwnd, HRGN hrgn, BOOL erase)
1053	{
1054	BOOL result;
1055
1056	result = RedrawWindow (hwnd, NULL, hrgn,
1057	RDW_ALLCHILDREN_W \| RDW_INVALIDATE_W \|
1058	(erase ? RDW_ERASE_W : 0) \|
1059	(hwnd == NULLHANDLE ? RDW_UPDATENOW_W : 0));
1060	return (result);
1061	}
1062	//******************************************************************************
1063	//******************************************************************************
1064	BOOL setPMRgnIntoWinRgn (HRGN hrgnPM, HRGN hrgnWin, LONG height)
1065	{
1066	BOOL rc;
1067	HPS hps = WinGetScreenPS (HWND_DESKTOP);
1068	RGNRECT rgnRect;
1069	rgnRect.ircStart = 1;
1070	rgnRect.crc = 0;
1071	rgnRect.ulDirection = RECTDIR_LFRT_TOPBOT; // doesn't make a difference because we're getting them all
1072
1073	rc = GpiQueryRegionRects (hps, hrgnPM, NULL, &rgnRect, NULL);
1074
1075	if (rc && (rgnRect.crcReturned > 0))
1076	{
1077	PRECTL Rcls = new RECTL[rgnRect.crcReturned];
1078	PRECTL pRcl = Rcls;
1079
1080	if (Rcls != NULL)
1081	{
1082	rgnRect.crc = rgnRect.crcReturned;
1083	rc = GpiQueryRegionRects (hps, hrgnPM, NULL, &rgnRect, Rcls);
1084
1085	rc = O32_SetRectRgn (hrgnWin, pRcl->xLeft,
1086	pRcl->xRight,
1087	height - pRcl->yTop,
1088	height - pRcl->yBottom);
1089
1090	if (rgnRect.crcReturned > 1)
1091	{
1092	int i;
1093	HRGN temp;
1094	temp = O32_CreateRectRgn (0, 0, 1, 1);
1095
1096	for (i = 1, pRcl++; rc && (i < rgnRect.crcReturned); i++, pRcl++)
1097	{
1098	rc = O32_SetRectRgn (temp, pRcl->xLeft,
1099	pRcl->xRight,
1100	height - pRcl->yTop,
1101	height - pRcl->yBottom);
1102	rc &= O32_CombineRgn (hrgnWin, hrgnWin, temp, RGN_OR_W);
1103	}
1104	O32_DeleteObject (temp);
1105	}
1106	delete[] Rcls;
1107	}
1108	else
1109	{
1110	rc = FALSE;
1111	}
1112	}
1113	else
1114	{
1115	rc = O32_SetRectRgn (hrgnWin, 0, 0, 0, 0);
1116	}
1117
1118	WinReleasePS (hps);
1119	return (rc);
1120	}
1121	//******************************************************************************
1122	//******************************************************************************
1123	BOOL WIN32API ScrollDC (HDC hDC, int dx, int dy, const RECT *pScroll,
1124	const RECT *pClip, HRGN hrgnUpdate, LPRECT pRectUpdate)
1125	{
1126	BOOL rc = TRUE;
1127
1128	dprintf (("USER32: ScrollDC"));
1129
1130	if (!hDC)
1131	{
1132	return (FALSE);
1133	}
1134
1135	pDCData pHps = (pDCData)GpiQueryDCData ((HPS)hDC);
1136	HWND hwnd = pHps->hwnd;
1137	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
1138
1139	if ((hwnd == NULLHANDLE) \|\| !wnd)
1140	{
1141	return (FALSE);
1142	}
1143
1144	POINTL ptl[2] = { 0, 0, dx, dy };
1145
1146	GpiConvert (pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, ptl);
1147	dx = (int)(ptl[1].x - ptl[0].x);
1148	dy = (int)(ptl[1].y - ptl[0].y);
1149
1150	RECTL scrollRect;
1151	RECTL clipRect;
1152
1153	if (pClip)
1154	{
1155	clipRect.xLeft = min (pClip->left, pClip->right);
1156	clipRect.xRight = max (pClip->left, pClip->right);
1157	clipRect.yTop = max (pClip->top, pClip->bottom);
1158	clipRect.yBottom = min (pClip->top, pClip->bottom);
1159
1160	if ((pHps->graphicsMode == GM_COMPATIBLE_W) &&
1161	(clipRect.xLeft != clipRect.xRight) &&
1162	(clipRect.yBottom != clipRect.yTop))
1163	{
1164	if (abs((int)pHps->viewportXExt) <= abs((int)pHps->windowExt.cx))
1165	clipRect.xRight -= abs(pHps->worldXDeltaFor1Pixel);
1166	else
1167	clipRect.xLeft += abs(pHps->worldXDeltaFor1Pixel);
1168
1169	if (abs((int)pHps->viewportYExt) <= abs((int)pHps->windowExt.cy))
1170	clipRect.yTop -= abs(pHps->worldYDeltaFor1Pixel);
1171	else
1172	clipRect.yBottom += abs(pHps->worldYDeltaFor1Pixel);
1173	}
1174	GpiConvert (pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, (PPOINTL)&clipRect);
1175	if (clipRect.xRight < clipRect.xLeft) {
1176	ULONG temp = clipRect.xLeft;
1177	clipRect.xLeft = clipRect.xRight;
1178	clipRect.xRight = temp;
1179	}
1180	if (clipRect.yTop < clipRect.yBottom) {
1181	ULONG temp = clipRect.yBottom;
1182	clipRect.yBottom = clipRect.yTop;
1183	clipRect.yTop = temp;
1184	}
1185	}
1186
1187	if (pScroll)
1188	{
1189	scrollRect.xLeft = min (pScroll->left, pScroll->right);
1190	scrollRect.xRight = max (pScroll->left, pScroll->right);
1191	scrollRect.yTop = max (pScroll->top, pScroll->bottom);
1192	scrollRect.yBottom = min (pScroll->top, pScroll->bottom);
1193
1194	if ((pHps->graphicsMode == GM_COMPATIBLE_W) &&
1195	(scrollRect.xLeft != scrollRect.xRight) &&
1196	(scrollRect.yBottom != scrollRect.yTop))
1197	{
1198	if (abs((int)pHps->viewportXExt) <= abs((int)pHps->windowExt.cx))
1199	scrollRect.xRight -= abs(pHps->worldXDeltaFor1Pixel);
1200	else
1201	scrollRect.xLeft += abs(pHps->worldXDeltaFor1Pixel);
1202
1203	if (abs((int)pHps->viewportYExt) <= abs((int)pHps->windowExt.cy))
1204	scrollRect.yTop -= abs(pHps->worldYDeltaFor1Pixel);
1205	else
1206	scrollRect.yBottom += abs(pHps->worldYDeltaFor1Pixel);
1207	}
1208	GpiConvert (pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, (PPOINTL)&scrollRect);
1209	if (scrollRect.xRight < scrollRect.xLeft) {
1210	ULONG temp = scrollRect.xLeft;
1211	scrollRect.xLeft = scrollRect.xRight;
1212	scrollRect.xRight = temp;
1213	}
1214	if (scrollRect.yTop < scrollRect.yBottom) {
1215	ULONG temp = scrollRect.yBottom;
1216	scrollRect.yBottom = scrollRect.yTop;
1217	scrollRect.yTop = temp;
1218	}
1219	}
1220	RECTL rectlUpdate;
1221	HRGN hrgn;
1222
1223	LONG lComplexity = WinScrollWindow (hwnd, dx, dy, (pScroll) ? &scrollRect : NULL, (pClip) ? &clipRect : NULL, hrgn, &rectlUpdate, 0);
1224	if (lComplexity == RGN_ERROR)
1225	{
1226	return (FALSE);
1227	}
1228
1229	RECT winRectUpdate;
1230	LONG height = wnd->getClientHeight();
1231
1232	winRectUpdate.left = rectlUpdate.xLeft;
1233	winRectUpdate.right = rectlUpdate.xRight;
1234	winRectUpdate.top = height - rectlUpdate.yTop;
1235	winRectUpdate.bottom = height - rectlUpdate.yBottom;
1236
1237	if (pRectUpdate)
1238	*pRectUpdate = winRectUpdate;
1239
1240	if (hrgnUpdate)
1241	rc = setPMRgnIntoWinRgn (hrgn, hrgnUpdate, height);
1242
1243	return (rc);
1244	}
1245	//******************************************************************************
1246	//******************************************************************************
1247	#if 1
1248	BOOL WIN32API ScrollWindow(HWND hwnd, int dx, int dy, const RECT pScroll, const RECT pClip)
1249	{
1250	Win32BaseWindow *window;
1251	APIRET rc;
1252	RECTL clientRect;
1253	PRECT pClientRect;
1254	RECTL scrollRect;
1255	RECTL clipRect;
1256	PRECTL pScrollRect = NULL;
1257	PRECTL pClipRect = NULL;
1258	ULONG scrollFlags = SW_INVALIDATERGN;
1259
1260	window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1261	if(!window) {
1262	dprintf(("ScrollWindow, window %x not found", hwnd));
1263	return 0;
1264	}
1265	dprintf(("ScrollWindow %x %d %d %x %x", hwnd, dx, dy, pScroll, pClip));
1266
1267	pClientRect = window->getClientRectPtr();
1268	clientRect.xLeft = 0;
1269	clientRect.yBottom = 0;
1270	clientRect.xRight = pClientRect->right - pClientRect->left;
1271	clientRect.yTop = pClientRect->bottom - pClientRect->top;
1272
1273	if(pScroll) {
1274	mapWin32ToOS2Rect(window,(RECT *)pScroll, (PRECTLOS2)&scrollRect);
1275	pScrollRect = &scrollRect;
1276
1277	//Scroll rectangle relative to client area
1278	WinIntersectRect ((HAB) 0, pScrollRect, pScrollRect, &clientRect);
1279	}
1280	else scrollFlags \|= SW_SCROLLCHILDREN;
1281
1282	if(pClip) {
1283	mapWin32ToOS2Rect(window,(RECT *)pClip, (PRECTLOS2)&clipRect);
1284	pClipRect = &clipRect;
1285
1286	//Clip rectangle relative to client area
1287	WinIntersectRect ((HAB) 0, pClipRect, pClipRect, &clientRect);
1288	}
1289
1290	dy = revertDy (window, dy);
1291
1292	rc = WinScrollWindow(window->getOS2WindowHandle(), dx, dy,
1293	pScrollRect, pClipRect, NULLHANDLE,
1294	NULL, scrollFlags);
1295
1296	return (rc != RGN_ERROR);
1297	}
1298	#else
1299	BOOL WIN32API ScrollWindow(HWND hwnd, int dx, int dy, const RECT pScroll, const RECT pClip)
1300	{
1301	Win32BaseWindow *window;
1302	APIRET rc;
1303	RECTL clientRect;
1304	RECTL scrollRect;
1305	RECTL clipRect;
1306	PRECTL pScrollRect = NULL;
1307	PRECTL pClipRect = NULL;
1308	ULONG scrollFlags = SW_INVALIDATERGN;
1309
1310	window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1311	if(!window) {
1312	dprintf(("ScrollWindow, window %x not found", hwnd));
1313	return 0;
1314	}
1315	dprintf(("ScrollWindow %x %d %d %x %x", hwnd, dx, dy, pScroll, pClip));
1316	mapWin32ToOS2Rect(window,window->getClientRectPtr(),(PRECTLOS2)&clientRect);
1317	#if 0
1318	//Rectangle could be relative to parent window, so fix this
1319	if(clientRect.yBottom != 0) {
1320	clientRect.yTop -= clientRect.yBottom;
1321	clientRect.yBottom = 0;
1322	}
1323	if(clientRect.xLeft != 0) {
1324	clientRect.xRight -= clientRect.xLeft;
1325	clientRect.xLeft = 0;
1326	}
1327	#endif
1328	if(pScroll) {
1329	mapWin32ToOS2Rect(window,(RECT *)pScroll, (PRECTLOS2)&scrollRect);
1330	pScrollRect = &scrollRect;
1331
1332	//Scroll rectangle relative to client area
1333	pScrollRect->xLeft += clientRect.xLeft;
1334	pScrollRect->xRight += clientRect.xLeft;
1335	pScrollRect->yTop += clientRect.yBottom;
1336	pScrollRect->yBottom += clientRect.yBottom;
1337	WinIntersectRect ((HAB) 0, pScrollRect, pScrollRect, &clientRect);
1338	}
1339	else scrollFlags \|= SW_SCROLLCHILDREN;
1340
1341	if(pClip) {
1342	mapWin32ToOS2Rect(window,(RECT *)pClip, (PRECTLOS2)&clipRect);
1343	pClipRect = &clipRect;
1344
1345	//Clip rectangle relative to client area
1346	pClipRect->xLeft += clientRect.xLeft;
1347	pClipRect->xRight += clientRect.xLeft;
1348	pClipRect->yTop += clientRect.yBottom;
1349	pClipRect->yBottom += clientRect.yBottom;
1350	WinIntersectRect ((HAB) 0, pClipRect, pClipRect, &clientRect);
1351	}
1352
1353	dy = revertDy (window, dy);
1354
1355	rc = WinScrollWindow(window->getOS2WindowHandle(), dx, dy,
1356	pScrollRect, pClipRect, NULLHANDLE,
1357	NULL, scrollFlags);
1358
1359	return (rc != RGN_ERROR);
1360	}
1361	#endif
1362	//******************************************************************************
1363	//******************************************************************************
1364	INT WIN32API ScrollWindowEx(HWND hwnd, int dx, int dy, const RECT pScroll, const RECT pClip,
1365	HRGN hrgnUpdate, PRECT pRectUpdate, UINT scrollFlag)
1366	{
1367	Win32BaseWindow *window;
1368	APIRET rc;
1369	RECTL scrollRect;
1370	RECTL clipRect;
1371	ULONG scrollFlags = 0;
1372	int regionType = ERROR_W;
1373
1374	window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1375	if(!window) {
1376	dprintf(("ScrollWindowEx, window %x not found", hwnd));
1377	return 0;
1378	}
1379
1380	dprintf(("ScrollWindowEx %x %d %d %x %x", hwnd, dx, dy, pScroll, pClip));
1381
1382	dy = revertDy (window, dy);
1383
1384	if (scrollFlag & SW_INVALIDATE_W) scrollFlags \|= SW_INVALIDATERGN;
1385	if (scrollFlag & SW_SCROLLCHILDREN_W) scrollFlags \|= SW_SCROLLCHILDREN;
1386
1387	if(pScroll) mapWin32ToOS2Rect(window,(RECT *)pScroll, (PRECTLOS2)&scrollRect);
1388	if(pClip) mapWin32ToOS2Rect(window,(RECT *)pClip, (PRECTLOS2)&clipRect);
1389
1390	RECTL rectlUpdate;
1391	HRGN hrgn;
1392
1393	if (scrollFlag & SW_SMOOTHSCROLL_W)
1394	{
1395	INT time = (scrollFlag >> 16) & 0xFFFF;
1396
1397	//CB: todo, scroll in several steps
1398	// is time in ms? time <-> iteration count?
1399	}
1400
1401	LONG lComplexity = WinScrollWindow (window->getOS2WindowHandle(), dx, dy,
1402	(pScroll) ? &scrollRect : NULL,
1403	(pClip) ? &clipRect : NULL,
1404	hrgn, &rectlUpdate, scrollFlags);
1405	if (lComplexity == RGN_ERROR)
1406	{
1407	return ERROR_W;
1408	}
1409
1410	RECT winRectUpdate;
1411	LONG height = window->getClientHeight();
1412
1413	winRectUpdate.left = rectlUpdate.xLeft;
1414	winRectUpdate.right = rectlUpdate.xRight;
1415	winRectUpdate.top = height - rectlUpdate.yTop;
1416	winRectUpdate.bottom = height - rectlUpdate.yBottom;
1417
1418	if (pRectUpdate)
1419	*pRectUpdate = winRectUpdate;
1420
1421	if (hrgnUpdate)
1422	rc = setPMRgnIntoWinRgn (hrgn, hrgnUpdate, height);
1423
1424	if ((scrollFlag & SW_INVALIDATE_W) &&
1425	((lComplexity == RGN_RECT) \|\| (lComplexity == RGN_COMPLEX)))
1426	{
1427	rc = InvalidateRect (hwnd, &winRectUpdate, (scrollFlag & SW_ERASE_W) ? 1 : 0);
1428	if (rc == FALSE)
1429	{
1430	return (0);
1431	}
1432	}
1433
1434	switch (lComplexity)
1435	{
1436	case RGN_NULL:
1437	regionType = NULLREGION_W;
1438	break;
1439	case RGN_RECT:
1440	regionType = SIMPLEREGION_W;
1441	break;
1442	case RGN_COMPLEX:
1443	regionType = COMPLEXREGION_W;
1444	break;
1445	default:
1446	regionType = ERROR_W;
1447	break;
1448	}
1449
1450	return (regionType);
1451	}
1452	//******************************************************************************
1453	//******************************************************************************
1454	HWND WIN32API WindowFromDC(HDC hdc)
1455	{
1456	pDCData pHps = (pDCData)GpiQueryDCData( (HPS)hdc );
1457
1458	dprintf2(("USER32: WindowFromDC %x", hdc));
1459	if ( pHps )
1460	return Win32BaseWindow::OS2ToWin32Handle(pHps->hwnd);
1461	else
1462	return 0;
1463	}
1464	//******************************************************************************
1465	//******************************************************************************
1466	INT WIN32API ExcludeUpdateRgn( HDC hDC, HWND hWnd)
1467	{
1468	dprintf(("USER32: ExcludeUpdateRgn\n"));
1469	hWnd = Win32BaseWindow::Win32ToOS2Handle(hWnd);
1470
1471	return O32_ExcludeUpdateRgn(hDC,hWnd);
1472	}
1473	//******************************************************************************
1474	//******************************************************************************
1475	BOOL WIN32API ValidateRect( HWND hwnd, const RECT * lprc)
1476	{
1477	if(lprc) {
1478	dprintf(("USER32: ValidateRect %x (%d,%d)(%d,%d)", hwnd, lprc->left, lprc->top, lprc->right, lprc->bottom));
1479	}
1480	else dprintf(("USER32: ValidateRect %x", hwnd));
1481
1482	return RedrawWindow( hwnd, lprc, 0, RDW_VALIDATE_W \| RDW_NOCHILDREN_W \| (hwnd==0 ? RDW_UPDATENOW_W : 0));
1483	}
1484	//******************************************************************************
1485	//******************************************************************************
1486	BOOL WIN32API ValidateRgn( HWND hwnd, HRGN hrgn)
1487	{
1488	dprintf(("USER32: ValidateRgn %x %x", hwnd, hrgn));
1489	return RedrawWindow( hwnd, NULL, hrgn, RDW_VALIDATE_W \| RDW_NOCHILDREN_W \| (hwnd==0 ? RDW_UPDATENOW_W : 0));
1490	}
1491	/*****************************************************************************
1492	* Name : int WIN32API GetWindowRgn
1493	* Purpose : The GetWindowRgn function obtains a copy of the window region of a window.
1494	* Parameters: HWND hWnd handle to window whose window region is to be obtained
1495	* HRGN hRgn handle to region that receives a copy of the window region
1496	* Variables :
1497	* Result : NULLREGION, SIMPLEREGION, COMPLEXREGION, ERROR
1498	* Remark :
1499	* Status : UNTESTED STUB
1500	*
1501	* Author : Patrick Haller [Thu, 1998/02/26 11:55]
1502	*****************************************************************************/
1503
1504	int WIN32API GetWindowRgn(HWND hwnd, HRGN hRgn)
1505	{
1506	Win32BaseWindow *window;
1507	HRGN hWindowRegion;
1508
1509	window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1510	if(!window) {
1511	dprintf(("SetWindowContextHelpId, window %x not found", hwnd));
1512	O32_SetLastError(ERROR_INVALID_WINDOW_HANDLE);
1513	return 0;
1514	}
1515	dprintf(("USER32:GetWindowRgn (%x,%x)", hwnd, hRgn));
1516	hWindowRegion = window->GetWindowRegion();
1517
1518	return O32_CombineRgn(hRgn, hWindowRegion, 0, RGN_COPY_W);
1519	}
1520	/*****************************************************************************
1521	* Name : int WIN32API SetWindowRgn
1522	* Purpose : The SetWindowRgn function sets the window region of a window. The
1523	* window region determines the area within the window where the
1524	* operating system permits drawing. The operating system does not
1525	* display any portion of a window that lies outside of the window region
1526	* When this function is called, the system sends the WM_WINDOWPOSCHANGING and
1527	* WM_WINDOWPOSCHANGED messages to the window.
1528	*
1529	* Parameters: HWND hWnd handle to window whose window region is to be set
1530	* HRGN hRgn handle to region
1531	* BOOL bRedraw window redraw flag
1532	* Variables :
1533	* Result : If the function succeeds, the return value is non-zero.
1534	* If the function fails, the return value is zero.
1535	* Remark :
1536	* Status : UNTESTED STUB
1537	*
1538	* Author : Patrick Haller [Thu, 1998/02/26 11:55]
1539	*****************************************************************************/
1540
1541	int WIN32API SetWindowRgn(HWND hwnd,
1542	HRGN hRgn,
1543	BOOL bRedraw)
1544	{
1545	Win32BaseWindow *window;
1546	HRGN hWindowRegion;
1547
1548	window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1549	if(!window) {
1550	dprintf(("SetWindowContextHelpId, window %x not found", hwnd));
1551	O32_SetLastError(ERROR_INVALID_WINDOW_HANDLE);
1552	return 0;
1553	}
1554	dprintf(("USER32:SetWindowRgn (%x,%x,%d)", hwnd, hRgn, bRedraw));
1555	if(window->GetWindowRegion()) {
1556	O32_DeleteObject(window->GetWindowRegion());
1557	}
1558	window->SetWindowRegion(hRgn);
1559	if(bRedraw) {
1560	RedrawWindow(hwnd, 0, 0, RDW_UPDATENOW_W);
1561	}
1562	//TODO:
1563	// When this function is called, the system sends the WM_WINDOWPOSCHANGING and
1564	// WM_WINDOWPOSCHANGED messages to the window.
1565	return 1;
1566	}
1567	//******************************************************************************
1568	//******************************************************************************

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