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source: trunk/src/user32/dc.cpp@ 2202

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Last change on this file since 2202 was 2202, checked in by sandervl, 26 years ago
some fixes
File size: 40.2 KB

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1	/* $Id: dc.cpp,v 1.30 1999-12-24 21:44:03 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	void TestWideLine (pDCData pHps)
72	{
73	const LOGPEN_W *pLogPen;
74
75	pHps->isWideLine = FALSE;
76	pLogPen = pHps->penIsExtPen ?
77	&(pHps->lastPenObject->ExtPen.logpen) :
78	&(pHps->lastPenObject->Pen.logpen);
79
80	if (((pLogPen->lopnStyle & PS_STYLE_MASK_W) != PS_NULL_W) &&
81	(pLogPen->lopnWidth.x > 0))
82	{
83	POINTL aptl[2] = { 0, 0, pLogPen->lopnWidth.x, pLogPen->lopnWidth.x };
84
85	GpiConvert(pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, aptl);
86
87	ULONG dx = abs(aptl[0].x - aptl[1].x);
88	ULONG dy = abs(aptl[0].y - aptl[1].y);
89
90	pHps->isWideLine = (dx > 1) \|\| (dy > 1);
91	}
92	}
93
94	void Calculate1PixelDelta(pDCData pHps)
95	{
96	POINTL aptl[2] = {0, 0, 1, 1};
97
98	GpiConvert(pHps->hps, CVTC_DEVICE, CVTC_WORLD, 2, aptl);
99	pHps->worldYDeltaFor1Pixel = (int)(aptl[1].y - aptl[0].y);
100	pHps->worldXDeltaFor1Pixel = (int)(aptl[1].x - aptl[0].x); // 171182
101	}
102
103	//******************************************************************************
104
105	int setMapMode(Win32BaseWindow *wnd, pDCData pHps, int mode)
106	{
107	int prevMode = 0;
108	ULONG flOptions;
109
110	switch (mode)
111	{
112	case MM_HIENGLISH_W : flOptions = PU_HIENGLISH; break;
113	case MM_LOENGLISH_W : flOptions = PU_LOENGLISH; break;
114	case MM_HIMETRIC_W : flOptions = PU_HIMETRIC ; break;
115	case MM_LOMETRIC_W : flOptions = PU_LOMETRIC ; break;
116	case MM_TEXT_W : flOptions = PU_PELS ; break;
117	case MM_TWIPS_W : flOptions = PU_TWIPS ; break;
118	case MM_ANISOTROPIC_W: flOptions = PU_PELS ; break;
119	case MM_ISOTROPIC_W : flOptions = PU_LOMETRIC ; break;
120	default:
121	O32_SetLastError (ERROR_INVALID_PARAMETER);
122	return FALSE;
123	}
124
125	prevMode = pHps->MapMode; /* store previous mode */
126	pHps->MapMode = mode;
127
128	if (mode == MM_TEXT_W)
129	{
130	pHps->viewportXExt =
131	pHps->viewportYExt = 1.0;
132	pHps->windowExt.cx =
133	pHps->windowExt.cy = 1;
134	}
135	else if (mode != MM_ANISOTROPIC_W)
136	{
137	RECTL rectl;
138	SIZEL sizel;
139	ULONG data[3];
140
141	data[0] = flOptions;
142	data[1] = data[2] = 0;
143
144	if (DevEscape(pHps->hdc ? pHps->hdc : pHps->hps, DEVESC_SETPS, 12, (PBYTE)data, 0, 0) == DEVESC_ERROR)
145	{
146	O32_SetLastError (ERROR_INVALID_PARAMETER);
147	return 0;
148	}
149
150	GpiQueryPageViewport(pHps->hps, &rectl);
151	pHps->viewportXExt = (double)rectl.xRight;
152	pHps->viewportYExt = -(double)rectl.yTop;
153
154	GreGetPageUnits(pHps->hdc? pHps->hdc : pHps->hps, &sizel);
155	pHps->windowExt.cx = sizel.cx;
156	pHps->windowExt.cy = sizel.cy;
157
158	data[0] = PU_PELS;
159	DevEscape(pHps->hdc ? pHps->hdc : pHps->hps, DEVESC_SETPS, 12, (PBYTE)data, 0, 0);
160	}
161
162	if (((prevMode != MM_ISOTROPIC_W) && (prevMode != MM_ANISOTROPIC_W)) &&
163	((mode == MM_ISOTROPIC_W) \|\| (mode == MM_ANISOTROPIC_W)))
164	{
165	if (pHps->lWndXExtSave && pHps->lWndYExtSave)
166	{
167	changePageXForm (wnd, pHps, (PPOINTL)&pHps->windowExt,
168	pHps->lWndXExtSave, pHps->lWndYExtSave, NULL );
169	pHps->lWndXExtSave = pHps->lWndYExtSave = 0;
170	}
171	if (pHps->lVwpXExtSave && pHps->lVwpYExtSave)
172	{
173	changePageXForm (wnd, pHps, NULL,
174	pHps->lVwpXExtSave, pHps->lVwpYExtSave, NULL );
175	pHps->lVwpXExtSave = pHps->lVwpYExtSave = 0;
176	}
177	}
178
179	setPageXForm(wnd, pHps);
180
181	return prevMode;
182	}
183
184	BOOL setPageXForm(Win32BaseWindow *wnd, pDCData pHps)
185	{
186	MATRIXLF mlf;
187	BOOL rc = TRUE;
188
189	pHps->height = clientHeight(wnd, 0, pHps) - 1;
190
191	double xScale = pHps->viewportXExt / (double)pHps->windowExt.cx;
192	double yScale = pHps->viewportYExt / (double)pHps->windowExt.cy;
193
194	mlf.fxM11 = FLOAT_TO_FIXED(xScale);
195	mlf.fxM12 = 0;
196	mlf.lM13 = 0;
197	mlf.fxM21 = 0;
198	mlf.fxM22 = FLOAT_TO_FIXED(yScale);
199	mlf.lM23 = 0;
200	mlf.lM31 = pHps->viewportOrg.x - (LONG)(pHps->windowOrg.x * xScale);
201	mlf.lM32 = pHps->viewportOrg.y - (LONG)(pHps->windowOrg.y * yScale);
202
203	pHps->isLeftLeft = mlf.fxM11 >= 0;
204	pHps->isTopTop = mlf.fxM22 >= 0;
205
206	BOOL bEnableYInversion = FALSE;
207	if ((mlf.fxM22 > 0) \|\|
208	((pHps->graphicsMode == GM_ADVANCED_W) &&
209	((pHps->MapMode == MM_ANISOTROPIC_W) \|\|
210	(pHps->MapMode == MM_ISOTROPIC_W))))
211	{
212	bEnableYInversion = TRUE;
213	}
214	else
215	{
216	bEnableYInversion = FALSE;
217	mlf.lM32 = pHps->HPStoHDCInversionHeight + pHps->height - mlf.lM32;
218	mlf.fxM22 = -mlf.fxM22;
219	}
220
221	if (!pHps->isMetaPS)
222	// if ((!pHps->isMetaPS) \|\|
223	// (pHps->pMetaFileObject && pHps->pMetaFileObject->isEnhanced()))
224	rc = GpiSetDefaultViewMatrix(pHps->hps, 8, &mlf, TRANSFORM_REPLACE);
225
226	if (bEnableYInversion)
227	GpiEnableYInversion(pHps->hps, pHps->height + pHps->HPStoHDCInversionHeight);
228	else
229	GpiEnableYInversion(pHps->hps, 0);
230
231	TestWideLine(pHps);
232	Calculate1PixelDelta(pHps);
233	return rc;
234	}
235
236	BOOL changePageXForm(Win32BaseWindow *wnd, pDCData pHps, PPOINTL pValue, int x, int y, PPOINTL pPrev)
237	{
238	BOOL result = FALSE;
239
240	if (pValue)
241	{
242	if (pPrev)
243	pPrev = pValue;
244
245	if ((pValue->x == x) && (pValue->y == y)) {
246	return TRUE;
247	}
248	pValue->x = x;
249	pValue->y = y;
250	}
251	else
252	{
253	if (pPrev)
254	{
255	pPrev->x = (int)pHps->viewportXExt;
256	pPrev->y = (int)pHps->viewportYExt;
257	}
258	pHps->viewportXExt = (double)x;
259	pHps->viewportYExt = (double)y;
260	}
261
262	if (pHps->MapMode == MM_ISOTROPIC_W)
263	{
264	double xExt = fabs(pHps->viewportXExt);
265	double yExt = fabs(pHps->viewportYExt);
266	double sf = fabs((double)pHps->windowExt.cx / pHps->windowExt.cy);
267
268	if (xExt > (yExt * sf))
269	{
270	xExt = yExt * sf;
271
272	if ((double)LONG_MAX <= xExt) return (result);
273
274	if (pHps->viewportXExt < 0.0)
275	pHps->viewportXExt = -xExt;
276	else
277	pHps->viewportXExt = xExt;
278	}
279	else
280	{
281	yExt = xExt / sf;
282
283	if ((double)LONG_MAX <= yExt) return (result);
284
285	if (pHps->viewportYExt < 0.0)
286	pHps->viewportYExt = -yExt;
287	else
288	pHps->viewportYExt = yExt;
289	}
290	}
291	result = setPageXForm(wnd, pHps);
292
293	return (result);
294	}
295
296	LONG clientHeight(Win32BaseWindow *wnd, HWND hwnd, pDCData pHps)
297	{
298	if ((hwnd == 0) && (pHps != 0))
299	hwnd = pHps->hwnd;
300
301	if ((hwnd != 0) \|\| (pHps == 0))
302	{
303	if (wnd)
304	return (wnd->getWindowHeight());
305	else
306	return OSLibQueryScreenHeight();
307	}
308	else if (pHps->bitmapHandle)
309	{
310	return pHps->bitmapHeight;
311	}
312	else if (pHps->isMetaPS)
313	{
314	return 0;
315	}
316	else if (pHps->isPrinter)
317	{
318	return pHps->printPageHeight;
319	}
320	else
321	{
322	return MEM_HPS_MAX;
323	}
324	}
325
326	BOOL isYup (pDCData pHps)
327	{
328	if (((pHps->windowExt.cy < 0) && (pHps->viewportYExt > 0.0)) \|\|
329	((pHps->windowExt.cy > 0) && (pHps->viewportYExt < 0.0)))
330	{
331	if ((pHps->graphicsMode == GM_COMPATIBLE_W) \|\|
332	((pHps->graphicsMode == GM_ADVANCED_W) && (pHps->xform.eM22 >= 0.0)))
333	return TRUE;
334	}
335	else
336	{
337	if ((pHps->graphicsMode == GM_ADVANCED_W) && (pHps->xform.eM22 < 0.0))
338	return TRUE;
339	}
340	return FALSE;
341	}
342
343	INT revertDy (Win32BaseWindow *wnd, INT dy)
344	{
345	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
346	// if (wnd->isOwnDC() && wnd->getOwnDC())
347	if (wnd->isOwnDC())
348	{
349	pDCData pHps = (pDCData)GpiQueryDCData (wnd->getOwnDC());
350
351	if (pHps != NULLHANDLE)
352	if (!isYup (pHps))
353	dy = -dy;
354	}
355	else
356	{
357	dy = -dy;
358	}
359	return (dy);
360	}
361
362	HDC sendEraseBkgnd (Win32BaseWindow *wnd)
363	{
364	BOOL erased;
365	HWND hwnd;
366	HDC hdc;
367	HPS hps;
368	HRGN hrgnUpdate, hrgnOld, hrgnClip, hrgnCombined;
369	RECTL rectl = { 1, 1, 2, 2 };
370
371	hwnd = wnd->getOS2WindowHandle();
372	hps = WinGetPS(hwnd);
373
374	hrgnUpdate = GpiCreateRegion (hps, 1, &rectl);
375	WinQueryUpdateRegion (hwnd, hrgnUpdate);
376	hrgnClip = GpiQueryClipRegion (hps);
377
378	if (hrgnClip == NULLHANDLE)
379	{
380	GpiSetClipRegion (hps, hrgnUpdate, &hrgnOld);
381	}
382	else
383	{
384	hrgnCombined = GpiCreateRegion (hps, 1, &rectl);
385	GpiCombineRegion (hps, hrgnCombined, hrgnClip, hrgnUpdate, CRGN_AND);
386	GpiSetClipRegion (hps, hrgnCombined, &hrgnOld);
387	GpiDestroyRegion (hps, hrgnUpdate);
388	GpiDestroyRegion (hps, hrgnClip);
389	}
390	if (hrgnOld != NULLHANDLE)
391	GpiDestroyRegion (hps, hrgnOld);
392
393	hdc = HPSToHDC (hwnd, hps, NULL, NULL);
394
395	erased = wnd->MsgEraseBackGround (hdc);
396
397	DeleteHDC (hdc);
398	WinReleasePS (hps);
399
400	return erased;
401	}
402
403	void releaseOwnDC (HDC hps)
404	{
405	pDCData pHps = (pDCData)GpiQueryDCData ((HPS)hps);
406
407	if (pHps) {
408	if (pHps->hrgnHDC)
409	GpiDestroyRegion (pHps->hps, pHps->hrgnHDC);
410
411	GpiSetBitmap (pHps->hps, NULL);
412	O32_DeleteObject (pHps->nullBitmapHandle);
413	GpiDestroyPS(pHps->hps);
414
415	if (pHps->hdc)
416	DevCloseDC(pHps->hdc);
417
418	// how can a memory chunk allocated by GpiAllocateDCData freed by delete?
419	// delete pHps;
420	}
421	}
422
423	HDC WIN32API BeginPaint (HWND hWnd, PPAINTSTRUCT_W lpps)
424	{
425	HWND hwnd = hWnd ? hWnd : HWND_DESKTOP;
426	pDCData pHps = NULLHANDLE;
427	RECTL rect;
428	HPS hPS_ownDC = NULLHANDLE;
429
430	dprintf (("USER32: BeginPaint(%x)", hWnd));
431
432	if ( !lpps )
433	{
434	O32_SetLastError (ERROR_INVALID_PARAMETER);
435	return (HDC)NULLHANDLE;
436	}
437
438	if(hWnd == 0x6800003a) {
439	hwnd = 0x6800003a;
440	}
441	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
442
443	if ((hwnd != HWND_DESKTOP) && wnd->isOwnDC())
444	{
445	hPS_ownDC = wnd->getOwnDC();
446	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
447	if(hPS_ownDC) {
448	pHps = (pDCData)GpiQueryDCData(hPS_ownDC);
449	if (!pHps)
450	{
451	O32_SetLastError (ERROR_INVALID_PARAMETER);
452	return (HDC)NULLHANDLE;
453	}
454	}
455	}
456
457	HWND hwndClient = wnd->getOS2WindowHandle();
458	HPS hps = WinBeginPaint(hwndClient, hPS_ownDC, &rect);
459
460	if (!pHps)
461	{
462	HDC hdc = HPSToHDC (hwndClient, hps, NULL, NULL);
463	pHps = (pDCData)GpiQueryDCData(hps);
464	}
465
466	if (hPS_ownDC == 0)
467	setMapMode (wnd, pHps, MM_TEXT_W);
468	else
469	setPageXForm (wnd, pHps);
470
471	pHps->hdcType = TYPE_3;
472	lpps->hdc = (HDC)hps;
473
474	if(!wnd->isSuppressErase()) {
475	wnd->setSuppressErase(TRUE);
476	wnd->setEraseBkgnd (FALSE, !wnd->MsgEraseBackGround(lpps->hdc));
477	}
478	lpps->fErase = wnd->isPSErase();
479
480	if (!hPS_ownDC)
481	{
482	long height = wnd->getWindowHeight();
483	rect.yTop = height - rect.yTop;
484	rect.yBottom = height - rect.yBottom;
485	}
486	else
487	{
488	rect.yTop--;
489	rect.yBottom--;
490	GpiConvert(pHps->hps, CVTC_DEVICE, CVTC_WORLD, 2, (PPOINTL)&rect);
491	}
492
493	WINRECT_FROM_PMRECT(lpps->rcPaint, rect);
494
495	O32_SetLastError(0);
496	return (HDC)pHps->hps;
497	}
498
499	BOOL WIN32API EndPaint (HWND hwnd, const PAINTSTRUCT_W *pPaint)
500	{
501	dprintf (("USER32: EndPaint(%x)", hwnd));
502
503	if (!pPaint \|\| !pPaint->hdc )
504	return TRUE;
505
506	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
507
508	if (!wnd) goto exit;
509
510	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
511	if(wnd->isOwnDC() && wnd->getOwnDC())
512	// if(wnd->isOwnDC())
513	{
514	pDCData pHps = (pDCData)GpiQueryDCData((HPS)pPaint->hdc);
515	if (pHps && (pHps->hdcType == TYPE_3))
516	{
517	WinEndPaint (pHps->hps);
518	}
519	}
520	else
521	{
522	O32_EndPaint (HWND_DESKTOP, pPaint);
523	}
524	wnd->setSuppressErase(FALSE);
525
526	exit:
527	O32_SetLastError(0);
528	return TRUE;
529	}
530
531	BOOL WIN32API GetUpdateRect (HWND hwnd, LPRECT pRect, BOOL erase)
532	{
533	if (hwnd)
534	{
535	O32_SetLastError (ERROR_INVALID_HANDLE);
536	return FALSE;
537	}
538
539	RECTL rectl;
540	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
541
542	BOOL updateRegionExists = WinQueryUpdateRect (hwnd, pRect ? &rectl : NULL);
543	if (!pRect) {
544	return (updateRegionExists);
545	}
546
547	if (updateRegionExists)
548	{
549	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
550	// if (wnd->isOwnDC() && wnd->getOwnDC())
551	if (wnd->isOwnDC())
552	{
553	pDCData pHps = NULL;
554	pHps = (pDCData)GpiQueryDCData(wnd->getOwnDC());
555	if (!pHps)
556	{
557	O32_SetLastError (ERROR_INVALID_HANDLE);
558	return FALSE;
559	}
560	GpiConvert (pHps->hps, CVTC_DEVICE, CVTC_WORLD, 2, (PPOINTL)&rectl);
561	}
562	else
563	{
564	long height = wnd->getWindowHeight();
565	rectl.yTop = height - rectl.yTop;
566	rectl.yBottom = height - rectl.yBottom;
567	}
568
569	if (pRect)
570	WINRECT_FROM_PMRECT (*pRect, rectl);
571
572	if (erase)
573	sendEraseBkgnd (wnd);
574	}
575	else
576	{
577	if (pRect)
578	pRect->left = pRect->top = pRect->right = pRect->bottom = 0;
579	}
580
581	return updateRegionExists;
582	}
583
584	int WIN32API GetUpdateRgn (HWND hwnd, HRGN hrgn, BOOL erase)
585	{
586	LONG Complexity;
587
588	Complexity = O32_GetUpdateRgn (hwnd, hrgn, FALSE);
589	if (erase && (Complexity > NULLREGION_W)) {
590	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
591	sendEraseBkgnd (wnd);
592	}
593
594	return Complexity;
595	}
596
597	// This implementation of GetDCEx supports
598	// DCX_WINDOW
599	// DCX_CACHE
600	// DCX_EXCLUDERGN (complex regions allowed)
601	// DCX_INTERSECTRGN (complex regions allowed)
602
603	HDC WIN32API GetDCEx (HWND hwnd, HRGN hrgn, ULONG flags)
604	{
605	Win32BaseWindow *wnd = NULL;
606	HWND hWindow;
607	BOOL success;
608	pDCData pHps = NULL;
609	HPS hps = NULLHANDLE;
610	BOOL drawingAllowed = TRUE;
611	BOOL isWindowOwnDC;
612	BOOL creatingOwnDC = FALSE;
613	PS_Type psType;
614
615	if (hwnd)
616	{
617	wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
618	if(wnd == NULL) {
619	dprintf (("ERROR: User32: GetDCEx bad window handle %X!!!!!", hwnd));
620	O32_SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
621	return 0;
622	}
623	//SvL: Experimental change (doesn't work right)
624	#if 0
625	if(wnd->fHasParentDC() && wnd->getParent()) {
626	wnd = wnd->getParent();
627	}
628	#endif
629	if (flags & DCX_WINDOW_W)
630	hWindow = wnd->getOS2FrameWindowHandle();
631	else
632	hWindow = wnd->getOS2WindowHandle();
633	}
634	else
635	hWindow = HWND_DESKTOP;
636
637	dprintf (("User32: GetDCEx hwnd %x (%x %x) -> wnd %x", hwnd, hrgn, flags, wnd));
638
639	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
640	// isWindowOwnDC = (((hWindow == HWND_DESKTOP) ? FALSE : (wnd->isOwnDC() && wnd->getOwnDC()))
641	isWindowOwnDC = (((hWindow == HWND_DESKTOP) ? FALSE : (wnd->isOwnDC()))
642	&& !(flags & DCX_CACHE_W));
643
644	if (isWindowOwnDC)
645	{
646	hps = wnd->getOwnDC();
647	if (hps)
648	{
649	pDCData pHps = (pDCData)GpiQueryDCData (hps);
650	if (!pHps)
651	goto error;
652
653	setPageXForm (wnd, pHps);
654
655	pHps->hdcType = TYPE_1;
656	return (HDC)hps;
657	}
658	else
659	creatingOwnDC = TRUE;
660	}
661
662	if (isWindowOwnDC)
663	{
664	SIZEL sizel = {0,0};
665	hps = GpiCreatePS (WinQueryAnchorBlock (hWindow),
666	WinOpenWindowDC (hWindow),
667	&sizel, PU_PELS \| GPIT_MICRO \| GPIA_ASSOC );
668	psType = MICRO;
669	}
670	else
671	{
672	if (hWindow == HWND_DESKTOP)
673	hps = WinGetScreenPS (hWindow);
674	else
675	hps = WinGetPS (hWindow);
676
677	psType = MICRO_CACHED;
678	}
679
680	if (!hps)
681	goto error;
682
683	HPSToHDC (hWindow, hps, NULL, NULL);
684	pHps = (pDCData)GpiQueryDCData (hps);
685
686	if ((flags & DCX_EXCLUDERGN_W) \|\| (flags & DCX_INTERSECTRGN_W))
687	{
688	ULONG BytesNeeded;
689	PRGNDATA_W RgnData;
690	PRECTL pr;
691	int i;
692	LONG height = OSLibQueryScreenHeight();
693
694	if (!hrgn)
695	goto error;
696
697	BytesNeeded = O32_GetRegionData (hrgn, 0, NULL);
698	RgnData = (PRGNDATA_W)_alloca (BytesNeeded);
699	if (RgnData == NULL)
700	goto error;
701	O32_GetRegionData (hrgn, BytesNeeded, RgnData);
702
703	i = RgnData->rdh.nCount;
704	pr = (PRECTL)(RgnData->Buffer);
705
706	success = TRUE;
707	if (flags & DCX_EXCLUDERGN_W)
708	for (; (i > 0) && success; i--, pr++) {
709	LONG y = pr->yBottom;
710
711	pr->yBottom = height - pr->yTop;
712	pr->yTop = height - y;
713	success &= GpiExcludeClipRectangle (pHps->hps, pr);
714	}
715	else
716	for (; (i > 0) && success; i--, pr++) {
717	LONG y = pr->yBottom;
718
719	pr->yBottom = height - pr->yTop;
720	pr->yTop = height - y;
721	success &= GpiIntersectClipRectangle (pHps->hps, pr);
722	}
723	if (!success)
724	goto error;
725	}
726
727	if (creatingOwnDC)
728	wnd->setOwnDC ((HDC)hps);
729
730	pHps->psType = psType;
731	pHps->hdcType = TYPE_1;
732	GpiSetDrawControl (hps, DCTL_DISPLAY, drawingAllowed ? DCTL_ON : DCTL_OFF);
733
734	return (HDC)pHps->hps;
735
736	error:
737	/* Something went wrong; clean up
738	*/
739	if (pHps)
740	{
741	if (pHps->hps)
742	{
743	if(pHps->psType == MICRO_CACHED)
744	WinReleasePS(pHps->hps);
745	else
746	GpiDestroyPS(pHps->hps);
747	}
748
749	if (pHps->hdc) DevCloseDC(pHps->hdc);
750	if (pHps->hrgnHDC) GpiDestroyRegion(pHps->hps, pHps->hrgnHDC);
751
752	O32_DeleteObject (pHps->nullBitmapHandle);
753	}
754	O32_SetLastError (ERROR_INVALID_PARAMETER);
755	return NULL;
756	}
757
758	HDC WIN32API GetDC (HWND hwnd)
759	{
760	return GetDCEx (hwnd, NULL, 0);
761	}
762
763	HDC WIN32API GetWindowDC (HWND hwnd)
764	{
765	return GetDCEx (hwnd, NULL, DCX_WINDOW_W);
766	}
767
768	int WIN32API ReleaseDC (HWND hwnd, HDC hdc)
769	{
770	BOOL isOwnDC = FALSE;
771	int rc;
772
773	if (hwnd)
774	{
775	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
776	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
777	// isOwnDC = wnd->isOwnDC() && wnd->getOwnDC();
778	isOwnDC = wnd->isOwnDC();
779	}
780	if (isOwnDC)
781	rc = TRUE;
782	else
783	rc = O32_ReleaseDC (0, hdc);
784
785	dprintf(("ReleaseDC %x %x", hwnd, hdc));
786	return (rc);
787	}
788
789	BOOL WIN32API UpdateWindow (HWND hwnd)
790	{
791	if (!hwnd)
792	return FALSE;
793
794	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
795
796	dprintf (("User32: UpdateWindow hwnd %x -> wnd %x", hwnd, wnd));
797
798	#if 0
799	if (WinQueryUpdateRect (wnd->getOS2WindowHandle(), NULL))
800	sendEraseBkgnd (wnd);
801	#endif
802
803	#if 1
804	WinUpdateWindow(wnd->getOS2FrameWindowHandle());
805	#else
806	wnd->MsgPaint(0);
807	#endif
808
809	return (TRUE);
810	}
811
812	// This implementation of RedrawWindow supports
813	// RDW_ERASE
814	// RDW_NOERASE
815	// RDW_INTERNALPAINT
816	// RDW_NOINTERNALPAINT
817	// RDW_INVALIDATE
818	// RDW_VALIDATE
819	// RDW_ERASENOW
820	// RDW_UPDATENOW
821
822	BOOL WIN32API RedrawWindow(HWND hwnd, const RECT* pRect, HRGN hrgn, DWORD redraw)
823	{
824	Win32BaseWindow *wnd;
825
826	if (redraw & (RDW_FRAME_W \| RDW_NOFRAME_W))
827	{
828	O32_SetLastError (ERROR_NOT_SUPPORTED);
829	return FALSE;
830	}
831
832	if (hwnd == NULLHANDLE)
833	{
834	#if 1
835	// Don't do this for now (causes lots of desktop repaints in WordPad)
836	O32_SetLastError (ERROR_INVALID_PARAMETER);
837	return FALSE;
838	#else
839	hwnd = HWND_DESKTOP;
840	wnd = Win32BaseWindow::GetWindowFromOS2Handle(OSLIB_HWND_DESKTOP);
841
842	if (!wnd)
843	{
844	dprintf(("USER32:dc: RedrawWindow can't find desktop window %08xh\n",
845	hwnd));
846	O32_SetLastError (ERROR_INVALID_PARAMETER);
847	return FALSE;
848	}
849	#endif
850	}
851	else
852	{
853	wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
854
855	if (!wnd)
856	{
857	dprintf(("USER32:dc: RedrawWindow can't find window %08xh\n",
858	hwnd));
859	O32_SetLastError (ERROR_INVALID_PARAMETER);
860	return FALSE;
861	}
862	hwnd = wnd->getOS2WindowHandle();
863	}
864
865	BOOL IncludeChildren = redraw & RDW_ALLCHILDREN_W ? TRUE : FALSE;
866	BOOL success = TRUE;
867	HPS hpsTemp = NULLHANDLE;
868	HRGN hrgnTemp = NULLHANDLE;
869	RECTL rectl;
870
871	if (redraw & RDW_UPDATENOW_W) redraw &= ~RDW_ERASENOW_W;
872
873	if (redraw & RDW_NOERASE_W)
874	wnd->setEraseBkgnd (FALSE);
875
876	//SvL: Test
877	// if (redraw & RDW_UPDATENOW_W)
878	// wnd->setSuppressErase (FALSE);
879	// else if (redraw & RDW_ERASENOW_W)
880	// wnd->setSuppressErase (FALSE);
881	#if 0
882	else
883	{
884	QMSG qmsg;
885	BOOL erase;
886
887	erase = (WinPeekMsg (HABX, &qmsg, hwnd, WM_PAINT, WM_PAINT, PM_REMOVE)
888	&& (redraw & RDW_NOERASE_W) == 0);
889
890	wnd->setSuppressErase (!erase);
891	}
892
893	if (redraw & (RDW_NOINTERNALPAINT_W \| RDW_INTERNALPAINT_W))
894	{
895	QMSG qmsg;
896
897	WinPeekMsg( (HAB)0, &qmsg, hwnd, WM_VIRTUAL_INTERNALPAINT,
898	WM_VIRTUAL_INTERNALPAINT, PM_REMOVE );
899	}
900	#endif
901
902	if (hrgn)
903	{
904	ULONG BytesNeeded;
905	PRGNDATA_W RgnData;
906	PRECTL pr;
907	int i;
908	LONG height = wnd ? wnd->getWindowHeight() : OSLibQueryScreenHeight();
909
910	if (!hrgn)
911	goto error;
912
913	BytesNeeded = O32_GetRegionData (hrgn, 0, NULL);
914	RgnData = (PRGNDATA_W)_alloca (BytesNeeded);
915	if (RgnData == NULL)
916	goto error;
917	O32_GetRegionData (hrgn, BytesNeeded, RgnData);
918
919	pr = (PRECTL)(RgnData->Buffer);
920	for (i = RgnData->rdh.nCount; i > 0; i--, pr++) {
921	LONG temp = pr->yTop;
922	pr->yTop = height - pr->yBottom;
923	pr->yBottom = height - temp;
924	}
925
926	hpsTemp = WinGetScreenPS (HWND_DESKTOP);
927	hrgnTemp = GpiCreateRegion (hpsTemp, RgnData->rdh.nCount, (PRECTL)(RgnData->Buffer));
928	if (!hrgnTemp) goto error;
929	}
930	else if (pRect)
931	{
932	LONG height = wnd ? wnd->getWindowHeight() : OSLibQueryScreenHeight();
933
934	PMRECT_FROM_WINRECT (rectl, *pRect);
935	rectl.yTop = height - rectl.yTop;
936	rectl.yBottom = height - rectl.yBottom;
937	}
938
939	if (redraw & RDW_INVALIDATE_W)
940	{
941	if (redraw & RDW_ERASE_W)
942	wnd->setEraseBkgnd (TRUE, TRUE);
943
944	if (!pRect && !hrgn)
945	success = WinInvalidateRect (hwnd, NULL, IncludeChildren);
946	else if (hrgn)
947	success = WinInvalidateRegion (hwnd, hrgnTemp, IncludeChildren);
948	else
949	success = WinInvalidateRect (hwnd, &rectl, IncludeChildren);
950	if (!success) goto error;
951	}
952	else if (redraw & RDW_VALIDATE_W)
953	{
954	if (WinQueryUpdateRect (hwnd, NULL))
955	{
956	if (!pRect && !hrgn)
957	success = WinValidateRect (hwnd, NULL, IncludeChildren);
958	else if (hrgn)
959	success = WinValidateRegion (hwnd, hrgnTemp, IncludeChildren);
960	else
961	success = WinValidateRect (hwnd, &rectl, IncludeChildren);
962	if (!success) goto error;
963	}
964	}
965
966	if (WinQueryUpdateRect (hwnd, NULL))
967	{
968	if (redraw & RDW_UPDATENOW_W)
969	wnd->MsgPaint (0, FALSE);
970
971	else if ((redraw & RDW_ERASE_W) && (redraw & RDW_ERASENOW_W))
972	wnd->setEraseBkgnd (FALSE, !sendEraseBkgnd (wnd));
973	}
974	else if ((redraw & RDW_INTERNALPAINT_W) && !(redraw & RDW_INVALIDATE_W))
975	{
976	if (redraw & RDW_UPDATENOW_W)
977	wnd->MsgPaint (0, FALSE);
978	// else
979	// WinPostMsg( hwnd, WM_VIRTUAL_INTERNALPAINT, MPVOID, MPVOID );
980	}
981
982	error:
983	/* clean up */
984	if (hrgnTemp)
985	GpiDestroyRegion (hpsTemp, hrgnTemp);
986
987	if (hpsTemp)
988	WinReleasePS (hpsTemp);
989
990	//SvL: Test
991	// if ((redraw & RDW_INVALIDATE_W) == 0)
992	// wnd->setSuppressErase (FALSE);
993	// else if ((redraw & RDW_ERASENOW_W) == RDW_ERASENOW_W)
994	// wnd->setSuppressErase (TRUE);
995
996	if (!success)
997	O32_SetLastError (ERROR_INVALID_PARAMETER);
998
999	return (success);
1000	}
1001
1002	BOOL WIN32API InvalidateRect (HWND hwnd, const RECT *pRect, BOOL erase)
1003	{
1004	// Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
1005	BOOL result;
1006
1007	// todo !!
1008	// if ( isFrame without client )
1009	// erase = TRUE;
1010
1011	result = RedrawWindow (hwnd, pRect, NULLHANDLE,
1012	RDW_ALLCHILDREN_W \| RDW_INVALIDATE_W \|
1013	(erase ? RDW_ERASE_W : 0) \|
1014	(hwnd == NULLHANDLE ? RDW_UPDATENOW_W : 0));
1015	return (result);
1016	}
1017
1018	BOOL WIN32API InvalidateRgn (HWND hwnd, HRGN hrgn, BOOL erase)
1019	{
1020	// Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
1021	BOOL result;
1022
1023	// todo !!
1024	// if ( isFrame without client )
1025	// erase = TRUE;
1026
1027	result = RedrawWindow (hwnd, NULL, hrgn,
1028	RDW_ALLCHILDREN_W \| RDW_INVALIDATE_W \|
1029	(erase ? RDW_ERASE_W : 0) \|
1030	(hwnd == NULLHANDLE ? RDW_UPDATENOW_W : 0));
1031	return (result);
1032	}
1033
1034	BOOL setPMRgnIntoWinRgn (HRGN hrgnPM, HRGN hrgnWin, LONG height)
1035	{
1036	BOOL rc;
1037	HPS hps = WinGetScreenPS (HWND_DESKTOP);
1038	RGNRECT rgnRect;
1039	rgnRect.ircStart = 1;
1040	rgnRect.crc = 0;
1041	rgnRect.ulDirection = RECTDIR_LFRT_TOPBOT; // doesn't make a difference because we're getting them all
1042
1043	rc = GpiQueryRegionRects (hps, hrgnPM, NULL, &rgnRect, NULL);
1044
1045	if (rc && (rgnRect.crcReturned > 0))
1046	{
1047	PRECTL Rcls = new RECTL[rgnRect.crcReturned];
1048	PRECTL pRcl = Rcls;
1049
1050	if (Rcls != NULL)
1051	{
1052	rgnRect.crc = rgnRect.crcReturned;
1053	rc = GpiQueryRegionRects (hps, hrgnPM, NULL, &rgnRect, Rcls);
1054
1055	rc = O32_SetRectRgn (hrgnWin, pRcl->xLeft,
1056	pRcl->xRight,
1057	height - pRcl->yTop,
1058	height - pRcl->yBottom);
1059
1060	if (rgnRect.crcReturned > 1)
1061	{
1062	int i;
1063	HRGN temp;
1064	temp = O32_CreateRectRgn (0, 0, 1, 1);
1065
1066	for (i = 1, pRcl++; rc && (i < rgnRect.crcReturned); i++, pRcl++)
1067	{
1068	rc = O32_SetRectRgn (temp, pRcl->xLeft,
1069	pRcl->xRight,
1070	height - pRcl->yTop,
1071	height - pRcl->yBottom);
1072	rc &= O32_CombineRgn (hrgnWin, hrgnWin, temp, RGN_OR_W);
1073	}
1074	O32_DeleteObject (temp);
1075	}
1076	delete[] Rcls;
1077	}
1078	else
1079	{
1080	rc = FALSE;
1081	}
1082	}
1083	else
1084	{
1085	rc = O32_SetRectRgn (hrgnWin, 0, 0, 0, 0);
1086	}
1087
1088	WinReleasePS (hps);
1089	return (rc);
1090	}
1091
1092	BOOL WIN32API ScrollDC (HDC hDC, int dx, int dy, const RECT *pScroll,
1093	const RECT *pClip, HRGN hrgnUpdate, LPRECT pRectUpdate)
1094	{
1095	BOOL rc = TRUE;
1096
1097	dprintf (("USER32: ScrollDC"));
1098
1099	if (!hDC)
1100	{
1101	return (FALSE);
1102	}
1103
1104	pDCData pHps = (pDCData)GpiQueryDCData ((HPS)hDC);
1105	HWND hwnd = pHps->hwnd;
1106	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
1107
1108	if ((hwnd == NULLHANDLE) \|\| !wnd)
1109	{
1110	return (FALSE);
1111	}
1112
1113	POINTL ptl[2] = { 0, 0, dx, dy };
1114
1115	GpiConvert (pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, ptl);
1116	dx = (int)(ptl[1].x - ptl[0].x);
1117	dy = (int)(ptl[1].y - ptl[0].y);
1118
1119	RECTL scrollRect;
1120	RECTL clipRect;
1121
1122	if (pClip)
1123	{
1124	clipRect.xLeft = min (pClip->left, pClip->right);
1125	clipRect.xRight = max (pClip->left, pClip->right);
1126	clipRect.yTop = max (pClip->top, pClip->bottom);
1127	clipRect.yBottom = min (pClip->top, pClip->bottom);
1128
1129	if ((pHps->graphicsMode == GM_COMPATIBLE_W) &&
1130	(clipRect.xLeft != clipRect.xRight) &&
1131	(clipRect.yBottom != clipRect.yTop))
1132	{
1133	if (abs((int)pHps->viewportXExt) <= abs((int)pHps->windowExt.cx))
1134	clipRect.xRight -= abs(pHps->worldXDeltaFor1Pixel);
1135	else
1136	clipRect.xLeft += abs(pHps->worldXDeltaFor1Pixel);
1137
1138	if (abs((int)pHps->viewportYExt) <= abs((int)pHps->windowExt.cy))
1139	clipRect.yTop -= abs(pHps->worldYDeltaFor1Pixel);
1140	else
1141	clipRect.yBottom += abs(pHps->worldYDeltaFor1Pixel);
1142	}
1143	GpiConvert (pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, (PPOINTL)&clipRect);
1144	if (clipRect.xRight < clipRect.xLeft) {
1145	ULONG temp = clipRect.xLeft;
1146	clipRect.xLeft = clipRect.xRight;
1147	clipRect.xRight = temp;
1148	}
1149	if (clipRect.yTop < clipRect.yBottom) {
1150	ULONG temp = clipRect.yBottom;
1151	clipRect.yBottom = clipRect.yTop;
1152	clipRect.yTop = temp;
1153	}
1154	}
1155
1156	if (pScroll)
1157	{
1158	scrollRect.xLeft = min (pScroll->left, pScroll->right);
1159	scrollRect.xRight = max (pScroll->left, pScroll->right);
1160	scrollRect.yTop = max (pScroll->top, pScroll->bottom);
1161	scrollRect.yBottom = min (pScroll->top, pScroll->bottom);
1162
1163	if ((pHps->graphicsMode == GM_COMPATIBLE_W) &&
1164	(scrollRect.xLeft != scrollRect.xRight) &&
1165	(scrollRect.yBottom != scrollRect.yTop))
1166	{
1167	if (abs((int)pHps->viewportXExt) <= abs((int)pHps->windowExt.cx))
1168	scrollRect.xRight -= abs(pHps->worldXDeltaFor1Pixel);
1169	else
1170	scrollRect.xLeft += abs(pHps->worldXDeltaFor1Pixel);
1171
1172	if (abs((int)pHps->viewportYExt) <= abs((int)pHps->windowExt.cy))
1173	scrollRect.yTop -= abs(pHps->worldYDeltaFor1Pixel);
1174	else
1175	scrollRect.yBottom += abs(pHps->worldYDeltaFor1Pixel);
1176	}
1177	GpiConvert (pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, (PPOINTL)&scrollRect);
1178	if (scrollRect.xRight < scrollRect.xLeft) {
1179	ULONG temp = scrollRect.xLeft;
1180	scrollRect.xLeft = scrollRect.xRight;
1181	scrollRect.xRight = temp;
1182	}
1183	if (scrollRect.yTop < scrollRect.yBottom) {
1184	ULONG temp = scrollRect.yBottom;
1185	scrollRect.yBottom = scrollRect.yTop;
1186	scrollRect.yTop = temp;
1187	}
1188	}
1189	RECTL rectlUpdate;
1190	HRGN hrgn;
1191
1192	LONG lComplexity = WinScrollWindow (hwnd, dx, dy, (pScroll) ? &scrollRect : NULL, (pClip) ? &clipRect : NULL, hrgn, &rectlUpdate, 0);
1193	if (lComplexity == RGN_ERROR)
1194	{
1195	return (FALSE);
1196	}
1197
1198	RECT winRectUpdate;
1199	LONG height = wnd->getWindowHeight();
1200
1201	winRectUpdate.left = rectlUpdate.xLeft;
1202	winRectUpdate.right = rectlUpdate.xRight;
1203	winRectUpdate.top = height - rectlUpdate.yTop;
1204	winRectUpdate.bottom = height - rectlUpdate.yBottom;
1205
1206	if (pRectUpdate)
1207	*pRectUpdate = winRectUpdate;
1208
1209	if (hrgnUpdate)
1210	rc = setPMRgnIntoWinRgn (hrgn, hrgnUpdate, height);
1211
1212	return (rc);
1213	}
1214
1215	//******************************************************************************
1216	//******************************************************************************
1217	BOOL WIN32API ScrollWindow(HWND hwnd, int dx, int dy, const RECT pScroll, const RECT pClip)
1218	{
1219	Win32BaseWindow *window;
1220	APIRET rc;
1221	RECTL clientRect;
1222	RECTL scrollRect;
1223	RECTL clipRect;
1224	PRECTL pScrollRect = NULL;
1225	PRECTL pClipRect = NULL;
1226	ULONG scrollFlags = SW_INVALIDATERGN;
1227
1228	window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1229	if(!window) {
1230	dprintf(("ScrollWindow, window %x not found", hwnd));
1231	return 0;
1232	}
1233	dprintf(("ScrollWindow %x %d %d %x %x", hwnd, dx, dy, pScroll, pClip));
1234	MapWin32ToOS2Rectl(window->getOS2WindowHandle(),window->getClientRect(), (PRECTLOS2)&clientRect);
1235	//Rectangle could be relative to parent window, so fix this
1236	if(clientRect.yBottom != 0) {
1237	clientRect.yTop -= clientRect.yBottom;
1238	clientRect.yBottom = 0;
1239	}
1240	if(clientRect.xLeft != 0) {
1241	clientRect.xRight -= clientRect.xLeft;
1242	clientRect.xLeft = 0;
1243	}
1244	if(pScroll) {
1245	MapWin32ToOS2Rectl(window->getOS2WindowHandle(),(RECT *)pScroll, (PRECTLOS2)&scrollRect);
1246	pScrollRect = &scrollRect;
1247
1248	//Scroll rectangle relative to client area
1249	pScrollRect->xLeft += clientRect.xLeft;
1250	pScrollRect->xRight += clientRect.xLeft;
1251	pScrollRect->yTop += clientRect.yBottom;
1252	pScrollRect->yBottom += clientRect.yBottom;
1253	WinIntersectRect ((HAB) 0, pScrollRect, pScrollRect, &clientRect);
1254	}
1255	else scrollFlags \|= SW_SCROLLCHILDREN;
1256
1257	if(pClip) {
1258	MapWin32ToOS2Rectl(window->getOS2WindowHandle(),(RECT *)pClip, (PRECTLOS2)&clipRect);
1259	pClipRect = &clipRect;
1260
1261	//Clip rectangle relative to client area
1262	pClipRect->xLeft += clientRect.xLeft;
1263	pClipRect->xRight += clientRect.xLeft;
1264	pClipRect->yTop += clientRect.yBottom;
1265	pClipRect->yBottom += clientRect.yBottom;
1266	WinIntersectRect ((HAB) 0, pClipRect, pClipRect, &clientRect);
1267	}
1268
1269	dy = revertDy (window, dy);
1270
1271	rc = WinScrollWindow(window->getOS2WindowHandle(), dx, dy,
1272	pScrollRect, pClipRect, NULLHANDLE,
1273	NULL, scrollFlags);
1274
1275	return (rc != RGN_ERROR);
1276	}
1277	//******************************************************************************
1278	//******************************************************************************
1279	INT WIN32API ScrollWindowEx(HWND hwnd, int dx, int dy, const RECT pScroll, const RECT pClip,
1280	HRGN hrgnUpdate, PRECT pRectUpdate, UINT scrollFlag)
1281	{
1282	Win32BaseWindow *window;
1283	APIRET rc;
1284	RECTL scrollRect;
1285	RECTL clipRect;
1286	ULONG scrollFlags = 0;
1287	int regionType = ERROR_W;
1288
1289	window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1290	if(!window) {
1291	dprintf(("ScrollWindowEx, window %x not found", hwnd));
1292	return 0;
1293	}
1294
1295	dprintf(("ScrollWindowEx %x %d %d %x %x", hwnd, dx, dy, pScroll, pClip));
1296
1297	dy = revertDy (window, dy);
1298
1299	if (scrollFlag & SW_INVALIDATE_W) scrollFlags \|= SW_INVALIDATERGN;
1300	if (scrollFlag & SW_SCROLLCHILDREN_W) scrollFlags \|= SW_SCROLLCHILDREN;
1301
1302	if(pScroll) MapWin32ToOS2Rectl(window->getOS2WindowHandle(),(RECT *)pScroll, (PRECTLOS2)&scrollRect);
1303	if(pClip) MapWin32ToOS2Rectl(window->getOS2WindowHandle(),(RECT *)pClip, (PRECTLOS2)&clipRect);
1304
1305	RECTL rectlUpdate;
1306	HRGN hrgn;
1307
1308	if (scrollFlag & SW_SMOOTHSCROLL_W)
1309	{
1310	INT time = (scrollFlag >> 16) & 0xFFFF;
1311
1312	//CB: todo, scroll in several steps
1313	// is time in ms? time <-> iteration count?
1314	}
1315
1316	LONG lComplexity = WinScrollWindow (window->getOS2WindowHandle(), dx, dy,
1317	(pScroll) ? &scrollRect : NULL,
1318	(pClip) ? &clipRect : NULL,
1319	hrgn, &rectlUpdate, scrollFlags);
1320	if (lComplexity == RGN_ERROR)
1321	{
1322	return (0);
1323	}
1324
1325	RECT winRectUpdate;
1326	LONG height = window->getWindowHeight();
1327
1328	winRectUpdate.left = rectlUpdate.xLeft;
1329	winRectUpdate.right = rectlUpdate.xRight;
1330	winRectUpdate.top = height - rectlUpdate.yTop;
1331	winRectUpdate.bottom = height - rectlUpdate.yBottom;
1332
1333	if (pRectUpdate)
1334	*pRectUpdate = winRectUpdate;
1335
1336	if (hrgnUpdate)
1337	rc = setPMRgnIntoWinRgn (hrgn, hrgnUpdate, height);
1338
1339	if ((scrollFlag & SW_INVALIDATE_W) &&
1340	((lComplexity == RGN_RECT) \|\| (lComplexity == RGN_COMPLEX)))
1341	{
1342	rc = InvalidateRect (hwnd, &winRectUpdate, scrollFlag & SW_ERASE_W);
1343	if (rc == FALSE)
1344	{
1345	return (0);
1346	}
1347	}
1348
1349	switch (lComplexity)
1350	{
1351	case RGN_NULL:
1352	regionType = NULLREGION_W;
1353	break;
1354	case RGN_RECT:
1355	regionType = SIMPLEREGION_W;
1356	break;
1357	case RGN_COMPLEX:
1358	regionType = COMPLEXREGION_W;
1359	break;
1360	default:
1361	regionType = ERROR_W;
1362	break;
1363	}
1364
1365	return (regionType);
1366	}
1367	//******************************************************************************
1368	//******************************************************************************
1369	HWND WIN32API WindowFromDC(HDC hdc)
1370	{
1371	pDCData pHps = (pDCData)GpiQueryDCData( (HPS)hdc );
1372
1373	dprintf2(("USER32: WindowFromDC %x", hdc));
1374	if ( pHps )
1375	return Win32BaseWindow::OS2ToWin32Handle(pHps->hwnd);
1376	else
1377	return 0;
1378	}
1379	//******************************************************************************
1380	//******************************************************************************
1381	INT WIN32API ExcludeUpdateRgn( HDC hDC, HWND hWnd)
1382	{
1383	dprintf(("USER32: ExcludeUpdateRgn\n"));
1384	hWnd = Win32BaseWindow::Win32ToOS2Handle(hWnd);
1385
1386	return O32_ExcludeUpdateRgn(hDC,hWnd);
1387	}
1388	//******************************************************************************
1389	//******************************************************************************
1390	BOOL WIN32API ValidateRect( HWND hwnd, const RECT * lprc)
1391	{
1392	if(lprc) {
1393	dprintf(("USER32: ValidateRect %x (%d,%d)(%d,%d)", hwnd, lprc->left, lprc->top, lprc->right, lprc->bottom));
1394	}
1395	else dprintf(("USER32: ValidateRect %x", hwnd));
1396
1397	return RedrawWindow( hwnd, lprc, 0, RDW_VALIDATE_W \| RDW_NOCHILDREN_W \| (hwnd==0 ? RDW_UPDATENOW_W : 0));
1398	}
1399	//******************************************************************************
1400	//******************************************************************************
1401	BOOL WIN32API ValidateRgn( HWND hwnd, HRGN hrgn)
1402	{
1403	dprintf(("USER32: ValidateRgn %x %x", hwnd, hrgn));
1404	return RedrawWindow( hwnd, NULL, hrgn, RDW_VALIDATE_W \| RDW_NOCHILDREN_W \| (hwnd==0 ? RDW_UPDATENOW_W : 0));
1405	}
1406	/*****************************************************************************
1407	* Name : int WIN32API GetWindowRgn
1408	* Purpose : The GetWindowRgn function obtains a copy of the window region of a window.
1409	* Parameters: HWND hWnd handle to window whose window region is to be obtained
1410	* HRGN hRgn handle to region that receives a copy of the window region
1411	* Variables :
1412	* Result : NULLREGION, SIMPLEREGION, COMPLEXREGION, ERROR
1413	* Remark :
1414	* Status : UNTESTED STUB
1415	*
1416	* Author : Patrick Haller [Thu, 1998/02/26 11:55]
1417	*****************************************************************************/
1418
1419	int WIN32API GetWindowRgn (HWND hWnd,
1420	HRGN hRgn)
1421	{
1422	dprintf(("USER32:GetWindowRgn (%08xh,%08x) not implemented.\n",
1423	hWnd,
1424	hRgn));
1425	//Attention: Win32 hwnd handle!
1426
1427	return (NULLREGION_W);
1428	}
1429	/*****************************************************************************
1430	* Name : int WIN32API SetWindowRgn
1431	* Purpose : The SetWindowRgn function sets the window region of a window. The
1432	* window region determines the area within the window where the
1433	* operating system permits drawing. The operating system does not
1434	* display any portion of a window that lies outside of the window region
1435	* Parameters: HWND hWnd handle to window whose window region is to be set
1436	* HRGN hRgn handle to region
1437	* BOOL bRedraw window redraw flag
1438	* Variables :
1439	* Result : If the function succeeds, the return value is non-zero.
1440	* If the function fails, the return value is zero.
1441	* Remark :
1442	* Status : UNTESTED STUB
1443	*
1444	* Author : Patrick Haller [Thu, 1998/02/26 11:55]
1445	*****************************************************************************/
1446
1447	int WIN32API SetWindowRgn(HWND hWnd,
1448	HRGN hRgn,
1449	BOOL bRedraw)
1450	{
1451	dprintf(("USER32:SetWindowRgn (%08xh,%08xh,%u) not implemented.\n",
1452	hWnd,
1453	hRgn,
1454	bRedraw));
1455	//Attention: Win32 hwnd handle!
1456
1457	return (0);
1458	}
1459	//******************************************************************************
1460	//******************************************************************************

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