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source: trunk/src/user32/dc.cpp@ 2582

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Last change on this file since 2582 was 2582, checked in by sandervl, 26 years ago
GetDCEx changes (fail if hwnd == 0)
File size: 47.4 KB

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1	/* $Id: dc.cpp,v 1.41 2000-01-31 22:30:51 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	HWND WIN32API GetDesktopWindow(void);
72
73	//******************************************************************************
74	//******************************************************************************
75	void TestWideLine (pDCData pHps)
76	{
77	const LOGPEN_W *pLogPen;
78
79	pHps->isWideLine = FALSE;
80	pLogPen = pHps->penIsExtPen ?
81	&(pHps->lastPenObject->ExtPen.logpen) :
82	&(pHps->lastPenObject->Pen.logpen);
83
84	if (((pLogPen->lopnStyle & PS_STYLE_MASK_W) != PS_NULL_W) &&
85	(pLogPen->lopnWidth.x > 0))
86	{
87	POINTL aptl[2] = { 0, 0, pLogPen->lopnWidth.x, pLogPen->lopnWidth.x };
88
89	GpiConvert(pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, aptl);
90
91	ULONG dx = abs(aptl[0].x - aptl[1].x);
92	ULONG dy = abs(aptl[0].y - aptl[1].y);
93
94	pHps->isWideLine = (dx > 1) \|\| (dy > 1);
95	}
96	}
97	//******************************************************************************
98	//******************************************************************************
99	void Calculate1PixelDelta(pDCData pHps)
100	{
101	POINTL aptl[2] = {0, 0, 1, 1};
102
103	GpiConvert(pHps->hps, CVTC_DEVICE, CVTC_WORLD, 2, aptl);
104	pHps->worldYDeltaFor1Pixel = (int)(aptl[1].y - aptl[0].y);
105	pHps->worldXDeltaFor1Pixel = (int)(aptl[1].x - aptl[0].x); // 171182
106	}
107	//******************************************************************************
108	//******************************************************************************
109	int setMapMode(Win32BaseWindow *wnd, pDCData pHps, int mode)
110	{
111	int prevMode = 0;
112	ULONG flOptions;
113
114	switch (mode)
115	{
116	case MM_HIENGLISH_W : flOptions = PU_HIENGLISH; break;
117	case MM_LOENGLISH_W : flOptions = PU_LOENGLISH; break;
118	case MM_HIMETRIC_W : flOptions = PU_HIMETRIC ; break;
119	case MM_LOMETRIC_W : flOptions = PU_LOMETRIC ; break;
120	case MM_TEXT_W : flOptions = PU_PELS ; break;
121	case MM_TWIPS_W : flOptions = PU_TWIPS ; break;
122	case MM_ANISOTROPIC_W: flOptions = PU_PELS ; break;
123	case MM_ISOTROPIC_W : flOptions = PU_LOMETRIC ; break;
124	default:
125	O32_SetLastError (ERROR_INVALID_PARAMETER);
126	return FALSE;
127	}
128
129	prevMode = pHps->MapMode; /* store previous mode */
130	pHps->MapMode = mode;
131
132	if (mode == MM_TEXT_W)
133	{
134	pHps->viewportXExt =
135	pHps->viewportYExt = 1.0;
136	pHps->windowExt.cx =
137	pHps->windowExt.cy = 1;
138	}
139	else if (mode != MM_ANISOTROPIC_W)
140	{
141	RECTL rectl;
142	SIZEL sizel;
143	ULONG data[3];
144
145	data[0] = flOptions;
146	data[1] = data[2] = 0;
147
148	if (DevEscape(pHps->hdc ? pHps->hdc : pHps->hps, DEVESC_SETPS, 12, (PBYTE)data, 0, 0) == DEVESC_ERROR)
149	{
150	O32_SetLastError (ERROR_INVALID_PARAMETER);
151	return 0;
152	}
153
154	GpiQueryPageViewport(pHps->hps, &rectl);
155	pHps->viewportXExt = (double)rectl.xRight;
156	pHps->viewportYExt = -(double)rectl.yTop;
157
158	GreGetPageUnits(pHps->hdc? pHps->hdc : pHps->hps, &sizel);
159	pHps->windowExt.cx = sizel.cx;
160	pHps->windowExt.cy = sizel.cy;
161
162	data[0] = PU_PELS;
163	DevEscape(pHps->hdc ? pHps->hdc : pHps->hps, DEVESC_SETPS, 12, (PBYTE)data, 0, 0);
164	}
165
166	if (((prevMode != MM_ISOTROPIC_W) && (prevMode != MM_ANISOTROPIC_W)) &&
167	((mode == MM_ISOTROPIC_W) \|\| (mode == MM_ANISOTROPIC_W)))
168	{
169	if (pHps->lWndXExtSave && pHps->lWndYExtSave)
170	{
171	changePageXForm (wnd, pHps, (PPOINTL)&pHps->windowExt,
172	pHps->lWndXExtSave, pHps->lWndYExtSave, NULL );
173	pHps->lWndXExtSave = pHps->lWndYExtSave = 0;
174	}
175	if (pHps->lVwpXExtSave && pHps->lVwpYExtSave)
176	{
177	changePageXForm (wnd, pHps, NULL,
178	pHps->lVwpXExtSave, pHps->lVwpYExtSave, NULL );
179	pHps->lVwpXExtSave = pHps->lVwpYExtSave = 0;
180	}
181	}
182
183	setPageXForm(wnd, pHps);
184
185	return prevMode;
186	}
187	//******************************************************************************
188	//******************************************************************************
189	BOOL setPageXForm(Win32BaseWindow *wnd, pDCData pHps)
190	{
191	MATRIXLF mlf;
192	BOOL rc = TRUE;
193
194	pHps->height = clientHeight(wnd, 0, pHps) - 1;
195
196	double xScale = pHps->viewportXExt / (double)pHps->windowExt.cx;
197	double yScale = pHps->viewportYExt / (double)pHps->windowExt.cy;
198
199	mlf.fxM11 = FLOAT_TO_FIXED(xScale);
200	mlf.fxM12 = 0;
201	mlf.lM13 = 0;
202	mlf.fxM21 = 0;
203	mlf.fxM22 = FLOAT_TO_FIXED(yScale);
204	mlf.lM23 = 0;
205	mlf.lM31 = pHps->viewportOrg.x - (LONG)(pHps->windowOrg.x * xScale);
206	mlf.lM32 = pHps->viewportOrg.y - (LONG)(pHps->windowOrg.y * yScale);
207
208	pHps->isLeftLeft = mlf.fxM11 >= 0;
209	pHps->isTopTop = mlf.fxM22 >= 0;
210
211	BOOL bEnableYInversion = FALSE;
212	if ((mlf.fxM22 > 0) \|\|
213	((pHps->graphicsMode == GM_ADVANCED_W) &&
214	((pHps->MapMode == MM_ANISOTROPIC_W) \|\|
215	(pHps->MapMode == MM_ISOTROPIC_W))))
216	{
217	bEnableYInversion = TRUE;
218	}
219	else
220	{
221	bEnableYInversion = FALSE;
222	mlf.lM32 = pHps->HPStoHDCInversionHeight + pHps->height - mlf.lM32;
223	mlf.fxM22 = -mlf.fxM22;
224	}
225
226	if (!pHps->isMetaPS)
227	// if ((!pHps->isMetaPS) \|\|
228	// (pHps->pMetaFileObject && pHps->pMetaFileObject->isEnhanced()))
229	rc = GpiSetDefaultViewMatrix(pHps->hps, 8, &mlf, TRANSFORM_REPLACE);
230
231	if (bEnableYInversion)
232	GpiEnableYInversion(pHps->hps, pHps->height + pHps->HPStoHDCInversionHeight);
233	else
234	GpiEnableYInversion(pHps->hps, 0);
235
236	TestWideLine(pHps);
237	Calculate1PixelDelta(pHps);
238	return rc;
239	}
240	//******************************************************************************
241	//******************************************************************************
242	BOOL changePageXForm(Win32BaseWindow *wnd, pDCData pHps, PPOINTL pValue, int x, int y, PPOINTL pPrev)
243	{
244	BOOL result = FALSE;
245
246	if (pValue)
247	{
248	if (pPrev)
249	pPrev = pValue;
250
251	if ((pValue->x == x) && (pValue->y == y)) {
252	return TRUE;
253	}
254	pValue->x = x;
255	pValue->y = y;
256	}
257	else
258	{
259	if (pPrev)
260	{
261	pPrev->x = (int)pHps->viewportXExt;
262	pPrev->y = (int)pHps->viewportYExt;
263	}
264	pHps->viewportXExt = (double)x;
265	pHps->viewportYExt = (double)y;
266	}
267
268	if (pHps->MapMode == MM_ISOTROPIC_W)
269	{
270	double xExt = fabs(pHps->viewportXExt);
271	double yExt = fabs(pHps->viewportYExt);
272	double sf = fabs((double)pHps->windowExt.cx / pHps->windowExt.cy);
273
274	if (xExt > (yExt * sf))
275	{
276	xExt = yExt * sf;
277
278	if ((double)LONG_MAX <= xExt) return (result);
279
280	if (pHps->viewportXExt < 0.0)
281	pHps->viewportXExt = -xExt;
282	else
283	pHps->viewportXExt = xExt;
284	}
285	else
286	{
287	yExt = xExt / sf;
288
289	if ((double)LONG_MAX <= yExt) return (result);
290
291	if (pHps->viewportYExt < 0.0)
292	pHps->viewportYExt = -yExt;
293	else
294	pHps->viewportYExt = yExt;
295	}
296	}
297	result = setPageXForm(wnd, pHps);
298
299	return (result);
300	}
301	//******************************************************************************
302	//******************************************************************************
303	LONG clientHeight(Win32BaseWindow *wnd, HWND hwnd, pDCData pHps)
304	{
305	if ((hwnd == 0) && (pHps != 0))
306	hwnd = pHps->hwnd;
307
308	if ((hwnd != 0) \|\| (pHps == 0))
309	{
310	if (wnd)
311	return (wnd->getClientHeight());
312	else
313	return OSLibQueryScreenHeight();
314	}
315	else if (pHps->bitmapHandle)
316	{
317	return pHps->bitmapHeight;
318	}
319	else if (pHps->isMetaPS)
320	{
321	return 0;
322	}
323	else if (pHps->isPrinter)
324	{
325	return pHps->printPageHeight;
326	}
327	else
328	{
329	return MEM_HPS_MAX;
330	}
331	}
332	//******************************************************************************
333	//******************************************************************************
334	BOOL isYup (pDCData pHps)
335	{
336	if (((pHps->windowExt.cy < 0) && (pHps->viewportYExt > 0.0)) \|\|
337	((pHps->windowExt.cy > 0) && (pHps->viewportYExt < 0.0)))
338	{
339	if ((pHps->graphicsMode == GM_COMPATIBLE_W) \|\|
340	((pHps->graphicsMode == GM_ADVANCED_W) && (pHps->xform.eM22 >= 0.0)))
341	return TRUE;
342	}
343	else
344	{
345	if ((pHps->graphicsMode == GM_ADVANCED_W) && (pHps->xform.eM22 < 0.0))
346	return TRUE;
347	}
348	return FALSE;
349	}
350	//******************************************************************************
351	//******************************************************************************
352	INT revertDy (Win32BaseWindow *wnd, INT dy)
353	{
354	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
355	// if (wnd->isOwnDC() && wnd->getOwnDC())
356	if (wnd->isOwnDC())
357	{
358	pDCData pHps = (pDCData)GpiQueryDCData (wnd->getOwnDC());
359
360	if (pHps != NULLHANDLE)
361	if (!isYup (pHps))
362	dy = -dy;
363	}
364	else
365	{
366	dy = -dy;
367	}
368	return (dy);
369	}
370	//******************************************************************************
371	//******************************************************************************
372	HDC sendEraseBkgnd (Win32BaseWindow *wnd)
373	{
374	BOOL erased;
375	HWND hwnd;
376	HDC hdc;
377	HPS hps;
378	HRGN hrgnUpdate, hrgnOld, hrgnClip, hrgnCombined;
379	RECTL rectl = { 1, 1, 2, 2 };
380
381	hwnd = wnd->getOS2WindowHandle();
382	hps = WinGetPS(hwnd);
383
384	hrgnUpdate = GpiCreateRegion (hps, 1, &rectl);
385	WinQueryUpdateRegion (hwnd, hrgnUpdate);
386	hrgnClip = GpiQueryClipRegion (hps);
387
388	if (hrgnClip == NULLHANDLE)
389	{
390	GpiSetClipRegion (hps, hrgnUpdate, &hrgnOld);
391	}
392	else
393	{
394	hrgnCombined = GpiCreateRegion (hps, 1, &rectl);
395	GpiCombineRegion (hps, hrgnCombined, hrgnClip, hrgnUpdate, CRGN_AND);
396	GpiSetClipRegion (hps, hrgnCombined, &hrgnOld);
397	GpiDestroyRegion (hps, hrgnUpdate);
398	GpiDestroyRegion (hps, hrgnClip);
399	}
400	if (hrgnOld != NULLHANDLE)
401	GpiDestroyRegion (hps, hrgnOld);
402
403	hdc = HPSToHDC (hwnd, hps, NULL, NULL);
404
405	erased = wnd->MsgEraseBackGround (hdc);
406
407	DeleteHDC (hdc);
408	WinReleasePS (hps);
409
410	return erased;
411	}
412	//******************************************************************************
413	//******************************************************************************
414	void releaseOwnDC (HDC hps)
415	{
416	pDCData pHps = (pDCData)GpiQueryDCData ((HPS)hps);
417
418	if (pHps) {
419	if (pHps->hrgnHDC)
420	GpiDestroyRegion (pHps->hps, pHps->hrgnHDC);
421
422	GpiSetBitmap (pHps->hps, NULL);
423	O32_DeleteObject (pHps->nullBitmapHandle);
424	GpiDestroyPS(pHps->hps);
425
426	if (pHps->hdc)
427	DevCloseDC(pHps->hdc);
428
429	// how can a memory chunk allocated by GpiAllocateDCData freed by delete?
430	// delete pHps;
431	}
432	}
433	//******************************************************************************
434	//******************************************************************************
435	HDC WIN32API BeginPaint (HWND hWnd, PPAINTSTRUCT_W lpps)
436	{
437	HWND hwnd = hWnd ? hWnd : HWND_DESKTOP;
438	pDCData pHps = NULLHANDLE;
439	RECTL rect;
440	HPS hPS_ownDC = NULLHANDLE;
441
442	if ( !lpps )
443	{
444	dprintf (("USER32: BeginPaint %x invalid parameter %x", hWnd, lpps));
445	O32_SetLastError (ERROR_INVALID_PARAMETER);
446	return (HDC)NULLHANDLE;
447	}
448
449	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
450
451	if ((hwnd != HWND_DESKTOP) && wnd->isOwnDC())
452	{
453	hPS_ownDC = wnd->getOwnDC();
454	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
455	if(hPS_ownDC) {
456	pHps = (pDCData)GpiQueryDCData(hPS_ownDC);
457	if (!pHps)
458	{
459	dprintf (("USER32: BeginPaint %x invalid parameter %x", hWnd, lpps));
460	O32_SetLastError (ERROR_INVALID_PARAMETER);
461	return (HDC)NULLHANDLE;
462	}
463	}
464	}
465
466	HWND hwndClient = wnd->getOS2WindowHandle();
467	HPS hps = WinBeginPaint(hwndClient, hPS_ownDC, &rect);
468
469	if (!pHps)
470	{
471	HDC hdc = HPSToHDC (hwndClient, hps, NULL, NULL);
472	pHps = (pDCData)GpiQueryDCData(hps);
473	}
474
475	if (hPS_ownDC == 0)
476	setMapMode (wnd, pHps, MM_TEXT_W);
477	else
478	setPageXForm (wnd, pHps);
479
480	pHps->hdcType = TYPE_3;
481	lpps->hdc = (HDC)hps;
482
483	if(!wnd->isSuppressErase()) {
484	wnd->setSuppressErase(TRUE);
485	wnd->setEraseBkgnd (FALSE, !wnd->MsgEraseBackGround(lpps->hdc));
486	}
487	lpps->fErase = wnd->isPSErase();
488
489	if (!hPS_ownDC)
490	{
491	long height = wnd->getClientHeight();
492	rect.yTop = height - rect.yTop;
493	rect.yBottom = height - rect.yBottom;
494	}
495	else
496	{
497	rect.yTop--;
498	rect.yBottom--;
499	GpiConvert(pHps->hps, CVTC_DEVICE, CVTC_WORLD, 2, (PPOINTL)&rect);
500	}
501
502	WINRECT_FROM_PMRECT(lpps->rcPaint, rect);
503
504	O32_SetLastError(0);
505	dprintf(("USER32: BeginPaint %x -> hdc %x", hWnd, pHps->hps));
506	return (HDC)pHps->hps;
507	}
508	//******************************************************************************
509	//******************************************************************************
510	BOOL WIN32API EndPaint (HWND hwnd, const PAINTSTRUCT_W *pPaint)
511	{
512	dprintf (("USER32: EndPaint(%x)", hwnd));
513
514	if (!pPaint \|\| !pPaint->hdc )
515	return TRUE;
516
517	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
518
519	if (!wnd) goto exit;
520
521	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
522	if(wnd->isOwnDC() && wnd->getOwnDC())
523	// if(wnd->isOwnDC())
524	{
525	pDCData pHps = (pDCData)GpiQueryDCData((HPS)pPaint->hdc);
526	if (pHps && (pHps->hdcType == TYPE_3))
527	{
528	WinEndPaint (pHps->hps);
529	}
530	}
531	else
532	{
533	O32_EndPaint (HWND_DESKTOP, pPaint);
534	}
535	wnd->setSuppressErase(FALSE);
536
537	exit:
538	O32_SetLastError(0);
539	return TRUE;
540	}
541	//******************************************************************************
542	//******************************************************************************
543	BOOL WIN32API GetUpdateRect (HWND hwnd, LPRECT pRect, BOOL erase)
544	{
545	if (!hwnd)
546	{
547	O32_SetLastError (ERROR_INVALID_HANDLE);
548	return FALSE;
549	}
550
551	RECTL rectl;
552	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
553
554	if (!wnd)
555	{
556	O32_SetLastError (ERROR_INVALID_HANDLE);
557	return FALSE;
558	}
559
560	BOOL updateRegionExists = WinQueryUpdateRect (wnd->getOS2WindowHandle(), pRect ? &rectl : NULL);
561	if (!pRect) {
562	return (updateRegionExists);
563	}
564
565	if (updateRegionExists)
566	{
567	//CB: for PM empty rect is valid
568	if ((rectl.xLeft == rectl.xRight) \|\| (rectl.yTop == rectl.yBottom)) return FALSE;
569	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
570	// if (wnd->isOwnDC() && wnd->getOwnDC())
571	if (wnd->isOwnDC())
572	{
573	pDCData pHps = NULL;
574	pHps = (pDCData)GpiQueryDCData(wnd->getOwnDC());
575	if (!pHps)
576	{
577	O32_SetLastError (ERROR_INVALID_HANDLE);
578	return FALSE;
579	}
580	GpiConvert (pHps->hps, CVTC_DEVICE, CVTC_WORLD, 2, (PPOINTL)&rectl);
581	}
582	else
583	{
584	long height = wnd->getClientHeight();
585	rectl.yTop = height - rectl.yTop;
586	rectl.yBottom = height - rectl.yBottom;
587	}
588
589	if (pRect)
590	WINRECT_FROM_PMRECT (*pRect, rectl);
591
592	if (erase)
593	sendEraseBkgnd (wnd);
594	}
595	else
596	{
597	if (pRect)
598	pRect->left = pRect->top = pRect->right = pRect->bottom = 0;
599	}
600
601	return updateRegionExists;
602	}
603	//******************************************************************************
604	//functions for WM_NCPAINT
605	//******************************************************************************
606	INT SYSTEM GetOS2UpdateRgn(HWND hwnd,HRGN hrgn)
607	{
608	return O32_GetUpdateRgn(hwnd,hrgn,FALSE);
609	}
610	//******************************************************************************
611	//******************************************************************************
612	BOOL SYSTEM GetOS2UpdateRect(HWND hwnd,LPRECT pRect)
613	{
614	RECTL rectl;
615	BOOL updateRegionExists = WinQueryUpdateRect(hwnd,pRect ? &rectl:NULL);
616
617	if (!pRect)
618	return (updateRegionExists);
619
620	if (updateRegionExists)
621	{
622	//CB: for PM empty rect is valid
623	if ((rectl.xLeft == rectl.xRight) \|\| (rectl.yTop == rectl.yBottom)) return FALSE;
624	mapOS2ToWin32Rect(hwnd,(PRECTLOS2)&rectl,pRect);
625	} else
626	pRect->left = pRect->top = pRect->right = pRect->bottom = 0;
627
628	return updateRegionExists;
629	}
630	//******************************************************************************
631	//******************************************************************************
632	int WIN32API GetUpdateRgn (HWND hwnd, HRGN hrgn, BOOL erase)
633	{
634	LONG Complexity;
635
636	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
637
638	if (!wnd)
639	{
640	O32_SetLastError (ERROR_INVALID_HANDLE);
641	return ERROR_W;
642	}
643
644	Complexity = O32_GetUpdateRgn (wnd->getOS2WindowHandle(), hrgn, FALSE);
645	if (erase && (Complexity > NULLREGION_W)) sendEraseBkgnd (wnd);
646
647	return Complexity;
648	}
649	//******************************************************************************
650	// This implementation of GetDCEx supports
651	// DCX_WINDOW
652	// DCX_CACHE
653	// DCX_EXCLUDERGN (complex regions allowed)
654	// DCX_INTERSECTRGN (complex regions allowed)
655	//******************************************************************************
656	HDC WIN32API GetDCEx (HWND hwnd, HRGN hrgn, ULONG flags)
657	{
658	Win32BaseWindow *wnd = NULL;
659	HWND hWindow;
660	BOOL success;
661	pDCData pHps = NULL;
662	HPS hps = NULLHANDLE;
663	BOOL drawingAllowed = TRUE;
664	BOOL isWindowOwnDC;
665	BOOL creatingOwnDC = FALSE;
666	PS_Type psType;
667
668	if(hwnd == 0) {
669	dprintf(("error: GetDCEx window %x not found", hwnd));
670	O32_SetLastError(ERROR_INVALID_WINDOW_HANDLE);
671	return 0;
672	}
673
674	if (hwnd)
675	{
676	wnd = Win32BaseWindow::GetWindowFromHandle(hwnd);
677	if(wnd == NULL) {
678	dprintf (("ERROR: User32: GetDCEx bad window handle %X!!!!!", hwnd));
679	O32_SetLastError(ERROR_INVALID_WINDOW_HANDLE_W);
680	return 0;
681	}
682	//SvL: Experimental change (doesn't work right)
683	#if 0
684	if(wnd->fHasParentDC() && wnd->getParent()) {
685	wnd = wnd->getParent();
686	}
687	#endif
688	if (flags & DCX_WINDOW_W)
689	hWindow = wnd->getOS2FrameWindowHandle();
690	else
691	hWindow = wnd->getOS2WindowHandle();
692	}
693
694	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
695	// isWindowOwnDC = (((hWindow == HWND_DESKTOP) ? FALSE : (wnd->isOwnDC() && wnd->getOwnDC()))
696	isWindowOwnDC = (((hWindow == HWND_DESKTOP) ? FALSE : (wnd->isOwnDC()))
697	&& !(flags & DCX_CACHE_W\|DCX_WINDOW_W));
698
699	if (isWindowOwnDC)
700	{
701	hps = wnd->getOwnDC();
702	if (hps)
703	{
704	pDCData pHps = (pDCData)GpiQueryDCData (hps);
705	if (!pHps)
706	goto error;
707
708	setPageXForm (wnd, pHps);
709
710	pHps->hdcType = TYPE_1;
711	dprintf (("User32: GetDCEx hwnd %x (%x %x) -> wnd %x hdc %x", hwnd, hrgn, flags, wnd, hps));
712	return (HDC)hps;
713	}
714	else
715	creatingOwnDC = TRUE;
716	}
717
718	if (isWindowOwnDC)
719	{
720	SIZEL sizel = {0,0};
721	hps = GpiCreatePS (WinQueryAnchorBlock (hWindow),
722	WinOpenWindowDC (hWindow),
723	&sizel, PU_PELS \| GPIT_MICRO \| GPIA_ASSOC );
724	psType = MICRO;
725	}
726	else
727	{
728	if (hWindow == HWND_DESKTOP)
729	hps = WinGetScreenPS (hWindow);
730	else
731	hps = WinGetPS (hWindow);
732
733	psType = MICRO_CACHED;
734	}
735
736	if (!hps)
737	goto error;
738
739	HPSToHDC (hWindow, hps, NULL, NULL);
740	pHps = (pDCData)GpiQueryDCData (hps);
741
742	if ((flags & DCX_EXCLUDERGN_W) \|\| (flags & DCX_INTERSECTRGN_W))
743	{
744	ULONG BytesNeeded;
745	PRGNDATA_W RgnData;
746	PRECT pr;
747	int i;
748	RECTL rectl;
749
750	if (!hrgn)
751	goto error;
752
753	BytesNeeded = O32_GetRegionData (hrgn, 0, NULL);
754	RgnData = (PRGNDATA_W)_alloca (BytesNeeded);
755	if (RgnData == NULL)
756	goto error;
757	O32_GetRegionData (hrgn, BytesNeeded, RgnData);
758
759	i = RgnData->rdh.nCount;
760	pr = (PRECT)(RgnData->Buffer);
761
762	success = TRUE;
763	if (flags & DCX_EXCLUDERGN_W)
764	{
765	#if 0 //CB: todo
766	for (; (i > 0) && success; i--, pr++) {
767	LONG y = pr->yBottom;
768
769	pr->yBottom = height - pr->yTop;
770	pr->yTop = height - y;
771	success &= GpiExcludeClipRectangle (pHps->hps, pr);
772	}
773	#endif
774	} else //DCX_INTERSECTRGN_W
775	{
776	O32_SelectClipRgn(pHps->hps,hrgn); //CB: works so far
777	}
778	if (!success)
779	goto error;
780	}
781
782	if (creatingOwnDC)
783	wnd->setOwnDC ((HDC)hps);
784
785	pHps->psType = psType;
786	pHps->hdcType = TYPE_1;
787	GpiSetDrawControl (hps, DCTL_DISPLAY, drawingAllowed ? DCTL_ON : DCTL_OFF);
788
789	dprintf (("User32: GetDCEx hwnd %x (%x %x) -> hdc %x", hwnd, hrgn, flags, pHps->hps));
790	return (HDC)pHps->hps;
791
792	error:
793	/* Something went wrong; clean up
794	*/
795	if (pHps)
796	{
797	if (pHps->hps)
798	{
799	if(pHps->psType == MICRO_CACHED)
800	WinReleasePS(pHps->hps);
801	else
802	GpiDestroyPS(pHps->hps);
803	}
804
805	if (pHps->hdc) DevCloseDC(pHps->hdc);
806	if (pHps->hrgnHDC) GpiDestroyRegion(pHps->hps, pHps->hrgnHDC);
807
808	O32_DeleteObject (pHps->nullBitmapHandle);
809	}
810	O32_SetLastError (ERROR_INVALID_PARAMETER);
811	return NULL;
812	}
813	//******************************************************************************
814	//******************************************************************************
815	HDC WIN32API GetDC (HWND hwnd)
816	{
817	if(!hwnd)
818	return GetDCEx( GetDesktopWindow(), 0, DCX_CACHE_W \| DCX_WINDOW_W );
819	return GetDCEx (hwnd, NULL, 0);
820	}
821	//******************************************************************************
822	//******************************************************************************
823	HDC WIN32API GetWindowDC (HWND hwnd)
824	{
825	if (!hwnd) hwnd = GetDesktopWindow();
826	return GetDCEx (hwnd, NULL, DCX_USESTYLE_W \| DCX_WINDOW_W);
827	}
828	//******************************************************************************
829	//******************************************************************************
830	int WIN32API ReleaseDC (HWND hwnd, HDC hdc)
831	{
832	BOOL isOwnDC = FALSE;
833	int rc;
834
835	if (hwnd)
836	{
837	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
838	if(wnd == NULL) {
839	dprintf(("ERROR: ReleaseDC %x %x failed", hwnd, hdc));
840	return 0;
841	}
842	//SvL: Hack for memory.exe (doesn't get repainted properly otherwise)
843	// isOwnDC = wnd->isOwnDC() && wnd->getOwnDC();
844	isOwnDC = wnd->isOwnDC() && (wnd->getOwnDC() == hdc);
845	}
846	if (isOwnDC)
847	rc = TRUE;
848	else
849	rc = O32_ReleaseDC (0, hdc);
850
851	dprintf(("ReleaseDC %x %x", hwnd, hdc));
852	return (rc);
853	}
854	//******************************************************************************
855	//******************************************************************************
856	BOOL WIN32API UpdateWindow (HWND hwnd)
857	{
858	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
859
860	if(!wnd) {
861	O32_SetLastError(ERROR_INVALID_WINDOW_HANDLE);
862	return FALSE;
863	}
864
865	dprintf (("User32: UpdateWindow hwnd %x", hwnd));
866
867	//SvL: Should update client window, not the frame
868	WinUpdateWindow(wnd->getOS2WindowHandle());
869
870	return (TRUE);
871	}
872	//******************************************************************************
873	// This implementation of RedrawWindow supports
874	// RDW_ERASE
875	// RDW_NOERASE
876	// RDW_INTERNALPAINT
877	// RDW_NOINTERNALPAINT
878	// RDW_INVALIDATE
879	// RDW_VALIDATE
880	// RDW_ERASENOW
881	// RDW_UPDATENOW
882	//******************************************************************************
883	BOOL WIN32API RedrawWindow(HWND hwnd, const RECT* pRect, HRGN hrgn, DWORD redraw)
884	{
885	Win32BaseWindow *wnd;
886
887	if (redraw & (RDW_FRAME_W \| RDW_NOFRAME_W))
888	{
889	O32_SetLastError (ERROR_NOT_SUPPORTED);
890	return FALSE;
891	}
892
893	if (hwnd == NULLHANDLE)
894	{
895	#if 1
896	// Don't do this for now (causes lots of desktop repaints in WordPad)
897	O32_SetLastError (ERROR_INVALID_PARAMETER);
898	return FALSE;
899	#else
900	hwnd = HWND_DESKTOP;
901	wnd = Win32BaseWindow::GetWindowFromOS2Handle(OSLIB_HWND_DESKTOP);
902
903	if (!wnd)
904	{
905	dprintf(("USER32:dc: RedrawWindow can't find desktop window %08xh\n",
906	hwnd));
907	O32_SetLastError (ERROR_INVALID_PARAMETER);
908	return FALSE;
909	}
910	#endif
911	}
912	else
913	{
914	wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
915
916	if (!wnd)
917	{
918	dprintf(("USER32:dc: RedrawWindow can't find window %08xh\n",
919	hwnd));
920	O32_SetLastError (ERROR_INVALID_PARAMETER);
921	return FALSE;
922	}
923	hwnd = wnd->getOS2WindowHandle();
924	}
925
926	BOOL IncludeChildren = redraw & RDW_ALLCHILDREN_W ? TRUE : FALSE;
927	BOOL success = TRUE;
928	HPS hpsTemp = NULLHANDLE;
929	HRGN hrgnTemp = NULLHANDLE;
930	RECTL rectl;
931
932	if (redraw & RDW_UPDATENOW_W) redraw &= ~RDW_ERASENOW_W;
933
934	if (redraw & RDW_NOERASE_W)
935	wnd->setEraseBkgnd (FALSE);
936
937	//SvL: Test
938	// if (redraw & RDW_UPDATENOW_W)
939	// wnd->setSuppressErase (FALSE);
940	// else if (redraw & RDW_ERASENOW_W)
941	// wnd->setSuppressErase (FALSE);
942
943	if (hrgn)
944	{
945	ULONG BytesNeeded;
946	PRGNDATA_W RgnData;
947	PRECTL pr;
948	int i;
949	LONG height = wnd ? wnd->getClientHeight() : OSLibQueryScreenHeight();
950
951	if (!hrgn)
952	goto error;
953
954	BytesNeeded = O32_GetRegionData (hrgn, 0, NULL);
955	RgnData = (PRGNDATA_W)_alloca (BytesNeeded);
956	if (RgnData == NULL)
957	goto error;
958	O32_GetRegionData (hrgn, BytesNeeded, RgnData);
959
960	pr = (PRECTL)(RgnData->Buffer);
961	for (i = RgnData->rdh.nCount; i > 0; i--, pr++) {
962	LONG temp = pr->yTop;
963	pr->yTop = height - pr->yBottom;
964	pr->yBottom = height - temp;
965	}
966
967	hpsTemp = WinGetScreenPS (HWND_DESKTOP);
968	hrgnTemp = GpiCreateRegion (hpsTemp, RgnData->rdh.nCount, (PRECTL)(RgnData->Buffer));
969	if (!hrgnTemp) goto error;
970	}
971	else if (pRect)
972	{
973	LONG height = wnd ? wnd->getClientHeight() : OSLibQueryScreenHeight();
974
975	PMRECT_FROM_WINRECT (rectl, *pRect);
976	rectl.yTop = height - rectl.yTop;
977	rectl.yBottom = height - rectl.yBottom;
978	}
979
980	if (redraw & RDW_INVALIDATE_W)
981	{
982	if (redraw & RDW_ERASE_W)
983	wnd->setEraseBkgnd (TRUE, TRUE);
984
985	if (!pRect && !hrgn)
986	success = WinInvalidateRect (hwnd, NULL, IncludeChildren);
987	else if (hrgn)
988	success = WinInvalidateRegion (hwnd, hrgnTemp, IncludeChildren);
989	else
990	success = WinInvalidateRect (hwnd, &rectl, IncludeChildren);
991	if (!success) goto error;
992	}
993	else if (redraw & RDW_VALIDATE_W)
994	{
995	if (WinQueryUpdateRect (hwnd, NULL))
996	{
997	if (!pRect && !hrgn)
998	success = WinValidateRect (hwnd, NULL, IncludeChildren);
999	else if (hrgn)
1000	success = WinValidateRegion (hwnd, hrgnTemp, IncludeChildren);
1001	else
1002	success = WinValidateRect (hwnd, &rectl, IncludeChildren);
1003	if (!success) goto error;
1004	}
1005	}
1006
1007	if (WinQueryUpdateRect (hwnd, NULL))
1008	{
1009	if (redraw & RDW_UPDATENOW_W)
1010	wnd->MsgPaint (0, FALSE);
1011
1012	else if ((redraw & RDW_ERASE_W) && (redraw & RDW_ERASENOW_W))
1013	wnd->setEraseBkgnd (FALSE, !sendEraseBkgnd (wnd));
1014	}
1015	else if ((redraw & RDW_INTERNALPAINT_W) && !(redraw & RDW_INVALIDATE_W))
1016	{
1017	if (redraw & RDW_UPDATENOW_W)
1018	wnd->MsgPaint (0, FALSE);
1019	// else
1020	// WinPostMsg( hwnd, WM_VIRTUAL_INTERNALPAINT, MPVOID, MPVOID );
1021	}
1022
1023	error:
1024	/* clean up */
1025	if (hrgnTemp)
1026	GpiDestroyRegion (hpsTemp, hrgnTemp);
1027
1028	if (hpsTemp)
1029	WinReleasePS (hpsTemp);
1030
1031	//SvL: Test
1032	// if ((redraw & RDW_INVALIDATE_W) == 0)
1033	// wnd->setSuppressErase (FALSE);
1034	// else if ((redraw & RDW_ERASENOW_W) == RDW_ERASENOW_W)
1035	// wnd->setSuppressErase (TRUE);
1036
1037	if (!success)
1038	O32_SetLastError (ERROR_INVALID_PARAMETER);
1039
1040	return (success);
1041	}
1042	//******************************************************************************
1043	//******************************************************************************
1044	BOOL WIN32API InvalidateRect (HWND hwnd, const RECT *pRect, BOOL erase)
1045	{
1046	BOOL result;
1047
1048	result = RedrawWindow (hwnd, pRect, NULLHANDLE,
1049	RDW_ALLCHILDREN_W \| RDW_INVALIDATE_W \|
1050	(erase ? RDW_ERASE_W : 0) \|
1051	(hwnd == NULLHANDLE ? RDW_UPDATENOW_W : 0));
1052	return (result);
1053	}
1054	//******************************************************************************
1055	//******************************************************************************
1056	BOOL WIN32API InvalidateRgn (HWND hwnd, HRGN hrgn, BOOL erase)
1057	{
1058	BOOL result;
1059
1060	result = RedrawWindow (hwnd, NULL, hrgn,
1061	RDW_ALLCHILDREN_W \| RDW_INVALIDATE_W \|
1062	(erase ? RDW_ERASE_W : 0) \|
1063	(hwnd == NULLHANDLE ? RDW_UPDATENOW_W : 0));
1064	return (result);
1065	}
1066	//******************************************************************************
1067	//******************************************************************************
1068	BOOL setPMRgnIntoWinRgn (HRGN hrgnPM, HRGN hrgnWin, LONG height)
1069	{
1070	BOOL rc;
1071	HPS hps = WinGetScreenPS (HWND_DESKTOP);
1072	RGNRECT rgnRect;
1073	rgnRect.ircStart = 1;
1074	rgnRect.crc = 0;
1075	rgnRect.ulDirection = RECTDIR_LFRT_TOPBOT; // doesn't make a difference because we're getting them all
1076
1077	rc = GpiQueryRegionRects (hps, hrgnPM, NULL, &rgnRect, NULL);
1078
1079	if (rc && (rgnRect.crcReturned > 0))
1080	{
1081	PRECTL Rcls = new RECTL[rgnRect.crcReturned];
1082	PRECTL pRcl = Rcls;
1083
1084	if (Rcls != NULL)
1085	{
1086	rgnRect.crc = rgnRect.crcReturned;
1087	rc = GpiQueryRegionRects (hps, hrgnPM, NULL, &rgnRect, Rcls);
1088
1089	rc = O32_SetRectRgn (hrgnWin, pRcl->xLeft,
1090	pRcl->xRight,
1091	height - pRcl->yTop,
1092	height - pRcl->yBottom);
1093
1094	if (rgnRect.crcReturned > 1)
1095	{
1096	int i;
1097	HRGN temp;
1098	temp = O32_CreateRectRgn (0, 0, 1, 1);
1099
1100	for (i = 1, pRcl++; rc && (i < rgnRect.crcReturned); i++, pRcl++)
1101	{
1102	rc = O32_SetRectRgn (temp, pRcl->xLeft,
1103	pRcl->xRight,
1104	height - pRcl->yTop,
1105	height - pRcl->yBottom);
1106	rc &= O32_CombineRgn (hrgnWin, hrgnWin, temp, RGN_OR_W);
1107	}
1108	O32_DeleteObject (temp);
1109	}
1110	delete[] Rcls;
1111	}
1112	else
1113	{
1114	rc = FALSE;
1115	}
1116	}
1117	else
1118	{
1119	rc = O32_SetRectRgn (hrgnWin, 0, 0, 0, 0);
1120	}
1121
1122	WinReleasePS (hps);
1123	return (rc);
1124	}
1125	//******************************************************************************
1126	//******************************************************************************
1127	BOOL WIN32API ScrollDC (HDC hDC, int dx, int dy, const RECT *pScroll,
1128	const RECT *pClip, HRGN hrgnUpdate, LPRECT pRectUpdate)
1129	{
1130	BOOL rc = TRUE;
1131
1132	dprintf (("USER32: ScrollDC"));
1133
1134	if (!hDC)
1135	{
1136	return (FALSE);
1137	}
1138
1139	pDCData pHps = (pDCData)GpiQueryDCData ((HPS)hDC);
1140	HWND hwnd = pHps->hwnd;
1141	Win32BaseWindow *wnd = Win32BaseWindow::GetWindowFromHandle (hwnd);
1142
1143	if ((hwnd == NULLHANDLE) \|\| !wnd)
1144	{
1145	return (FALSE);
1146	}
1147
1148	POINTL ptl[2] = { 0, 0, dx, dy };
1149
1150	GpiConvert (pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, ptl);
1151	dx = (int)(ptl[1].x - ptl[0].x);
1152	dy = (int)(ptl[1].y - ptl[0].y);
1153
1154	RECTL scrollRect;
1155	RECTL clipRect;
1156
1157	if (pClip)
1158	{
1159	clipRect.xLeft = min (pClip->left, pClip->right);
1160	clipRect.xRight = max (pClip->left, pClip->right);
1161	clipRect.yTop = max (pClip->top, pClip->bottom);
1162	clipRect.yBottom = min (pClip->top, pClip->bottom);
1163
1164	if ((pHps->graphicsMode == GM_COMPATIBLE_W) &&
1165	(clipRect.xLeft != clipRect.xRight) &&
1166	(clipRect.yBottom != clipRect.yTop))
1167	{
1168	if (abs((int)pHps->viewportXExt) <= abs((int)pHps->windowExt.cx))
1169	clipRect.xRight -= abs(pHps->worldXDeltaFor1Pixel);
1170	else
1171	clipRect.xLeft += abs(pHps->worldXDeltaFor1Pixel);
1172
1173	if (abs((int)pHps->viewportYExt) <= abs((int)pHps->windowExt.cy))
1174	clipRect.yTop -= abs(pHps->worldYDeltaFor1Pixel);
1175	else
1176	clipRect.yBottom += abs(pHps->worldYDeltaFor1Pixel);
1177	}
1178	GpiConvert (pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, (PPOINTL)&clipRect);
1179	if (clipRect.xRight < clipRect.xLeft) {
1180	ULONG temp = clipRect.xLeft;
1181	clipRect.xLeft = clipRect.xRight;
1182	clipRect.xRight = temp;
1183	}
1184	if (clipRect.yTop < clipRect.yBottom) {
1185	ULONG temp = clipRect.yBottom;
1186	clipRect.yBottom = clipRect.yTop;
1187	clipRect.yTop = temp;
1188	}
1189	}
1190
1191	if (pScroll)
1192	{
1193	scrollRect.xLeft = min (pScroll->left, pScroll->right);
1194	scrollRect.xRight = max (pScroll->left, pScroll->right);
1195	scrollRect.yTop = max (pScroll->top, pScroll->bottom);
1196	scrollRect.yBottom = min (pScroll->top, pScroll->bottom);
1197
1198	if ((pHps->graphicsMode == GM_COMPATIBLE_W) &&
1199	(scrollRect.xLeft != scrollRect.xRight) &&
1200	(scrollRect.yBottom != scrollRect.yTop))
1201	{
1202	if (abs((int)pHps->viewportXExt) <= abs((int)pHps->windowExt.cx))
1203	scrollRect.xRight -= abs(pHps->worldXDeltaFor1Pixel);
1204	else
1205	scrollRect.xLeft += abs(pHps->worldXDeltaFor1Pixel);
1206
1207	if (abs((int)pHps->viewportYExt) <= abs((int)pHps->windowExt.cy))
1208	scrollRect.yTop -= abs(pHps->worldYDeltaFor1Pixel);
1209	else
1210	scrollRect.yBottom += abs(pHps->worldYDeltaFor1Pixel);
1211	}
1212	GpiConvert (pHps->hps, CVTC_WORLD, CVTC_DEVICE, 2, (PPOINTL)&scrollRect);
1213	if (scrollRect.xRight < scrollRect.xLeft) {
1214	ULONG temp = scrollRect.xLeft;
1215	scrollRect.xLeft = scrollRect.xRight;
1216	scrollRect.xRight = temp;
1217	}
1218	if (scrollRect.yTop < scrollRect.yBottom) {
1219	ULONG temp = scrollRect.yBottom;
1220	scrollRect.yBottom = scrollRect.yTop;
1221	scrollRect.yTop = temp;
1222	}
1223	}
1224	RECTL rectlUpdate;
1225	HRGN hrgn;
1226
1227	LONG lComplexity = WinScrollWindow (hwnd, dx, dy, (pScroll) ? &scrollRect : NULL, (pClip) ? &clipRect : NULL, hrgn, &rectlUpdate, 0);
1228	if (lComplexity == RGN_ERROR)
1229	{
1230	return (FALSE);
1231	}
1232
1233	RECT winRectUpdate;
1234	LONG height = wnd->getClientHeight();
1235
1236	winRectUpdate.left = rectlUpdate.xLeft;
1237	winRectUpdate.right = rectlUpdate.xRight;
1238	winRectUpdate.top = height - rectlUpdate.yTop;
1239	winRectUpdate.bottom = height - rectlUpdate.yBottom;
1240
1241	if (pRectUpdate)
1242	*pRectUpdate = winRectUpdate;
1243
1244	if (hrgnUpdate)
1245	rc = setPMRgnIntoWinRgn (hrgn, hrgnUpdate, height);
1246
1247	return (rc);
1248	}
1249	//******************************************************************************
1250	//******************************************************************************
1251	#if 1
1252	BOOL WIN32API ScrollWindow(HWND hwnd, int dx, int dy, const RECT pScroll, const RECT pClip)
1253	{
1254	Win32BaseWindow *window;
1255	APIRET rc;
1256	RECTL clientRect;
1257	PRECT pClientRect;
1258	RECTL scrollRect;
1259	RECTL clipRect;
1260	PRECTL pScrollRect = NULL;
1261	PRECTL pClipRect = NULL;
1262	ULONG scrollFlags = SW_INVALIDATERGN;
1263
1264	window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1265	if(!window) {
1266	dprintf(("ScrollWindow, window %x not found", hwnd));
1267	return 0;
1268	}
1269	dprintf(("ScrollWindow %x %d %d %x %x", hwnd, dx, dy, pScroll, pClip));
1270
1271	pClientRect = window->getClientRectPtr();
1272	clientRect.xLeft = 0;
1273	clientRect.yBottom = 0;
1274	clientRect.xRight = pClientRect->right - pClientRect->left;
1275	clientRect.yTop = pClientRect->bottom - pClientRect->top;
1276
1277	if(pScroll) {
1278	mapWin32ToOS2Rect(window,(RECT *)pScroll, (PRECTLOS2)&scrollRect);
1279	pScrollRect = &scrollRect;
1280
1281	//Scroll rectangle relative to client area
1282	WinIntersectRect ((HAB) 0, pScrollRect, pScrollRect, &clientRect);
1283	}
1284	else scrollFlags \|= SW_SCROLLCHILDREN;
1285
1286	if(pClip) {
1287	mapWin32ToOS2Rect(window,(RECT *)pClip, (PRECTLOS2)&clipRect);
1288	pClipRect = &clipRect;
1289
1290	//Clip rectangle relative to client area
1291	WinIntersectRect ((HAB) 0, pClipRect, pClipRect, &clientRect);
1292	}
1293
1294	dy = revertDy (window, dy);
1295
1296	rc = WinScrollWindow(window->getOS2WindowHandle(), dx, dy,
1297	pScrollRect, pClipRect, NULLHANDLE,
1298	NULL, scrollFlags);
1299
1300	return (rc != RGN_ERROR);
1301	}
1302	#else
1303	BOOL WIN32API ScrollWindow(HWND hwnd, int dx, int dy, const RECT pScroll, const RECT pClip)
1304	{
1305	Win32BaseWindow *window;
1306	APIRET rc;
1307	RECTL clientRect;
1308	RECTL scrollRect;
1309	RECTL clipRect;
1310	PRECTL pScrollRect = NULL;
1311	PRECTL pClipRect = NULL;
1312	ULONG scrollFlags = SW_INVALIDATERGN;
1313
1314	window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1315	if(!window) {
1316	dprintf(("ScrollWindow, window %x not found", hwnd));
1317	return 0;
1318	}
1319	dprintf(("ScrollWindow %x %d %d %x %x", hwnd, dx, dy, pScroll, pClip));
1320	mapWin32ToOS2Rect(window,window->getClientRectPtr(),(PRECTLOS2)&clientRect);
1321	#if 0
1322	//Rectangle could be relative to parent window, so fix this
1323	if(clientRect.yBottom != 0) {
1324	clientRect.yTop -= clientRect.yBottom;
1325	clientRect.yBottom = 0;
1326	}
1327	if(clientRect.xLeft != 0) {
1328	clientRect.xRight -= clientRect.xLeft;
1329	clientRect.xLeft = 0;
1330	}
1331	#endif
1332	if(pScroll) {
1333	mapWin32ToOS2Rect(window,(RECT *)pScroll, (PRECTLOS2)&scrollRect);
1334	pScrollRect = &scrollRect;
1335
1336	//Scroll rectangle relative to client area
1337	pScrollRect->xLeft += clientRect.xLeft;
1338	pScrollRect->xRight += clientRect.xLeft;
1339	pScrollRect->yTop += clientRect.yBottom;
1340	pScrollRect->yBottom += clientRect.yBottom;
1341	WinIntersectRect ((HAB) 0, pScrollRect, pScrollRect, &clientRect);
1342	}
1343	else scrollFlags \|= SW_SCROLLCHILDREN;
1344
1345	if(pClip) {
1346	mapWin32ToOS2Rect(window,(RECT *)pClip, (PRECTLOS2)&clipRect);
1347	pClipRect = &clipRect;
1348
1349	//Clip rectangle relative to client area
1350	pClipRect->xLeft += clientRect.xLeft;
1351	pClipRect->xRight += clientRect.xLeft;
1352	pClipRect->yTop += clientRect.yBottom;
1353	pClipRect->yBottom += clientRect.yBottom;
1354	WinIntersectRect ((HAB) 0, pClipRect, pClipRect, &clientRect);
1355	}
1356
1357	dy = revertDy (window, dy);
1358
1359	rc = WinScrollWindow(window->getOS2WindowHandle(), dx, dy,
1360	pScrollRect, pClipRect, NULLHANDLE,
1361	NULL, scrollFlags);
1362
1363	return (rc != RGN_ERROR);
1364	}
1365	#endif
1366	//******************************************************************************
1367	//******************************************************************************
1368	INT WIN32API ScrollWindowEx(HWND hwnd, int dx, int dy, const RECT pScroll, const RECT pClip,
1369	HRGN hrgnUpdate, PRECT pRectUpdate, UINT scrollFlag)
1370	{
1371	Win32BaseWindow *window;
1372	APIRET rc;
1373	RECTL scrollRect;
1374	RECTL clipRect;
1375	ULONG scrollFlags = 0;
1376	int regionType = ERROR_W;
1377
1378	window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1379	if(!window) {
1380	dprintf(("ScrollWindowEx, window %x not found", hwnd));
1381	return 0;
1382	}
1383
1384	dprintf(("ScrollWindowEx %x %d %d %x %x", hwnd, dx, dy, pScroll, pClip));
1385
1386	dy = revertDy (window, dy);
1387
1388	if (scrollFlag & SW_INVALIDATE_W) scrollFlags \|= SW_INVALIDATERGN;
1389	if (scrollFlag & SW_SCROLLCHILDREN_W) scrollFlags \|= SW_SCROLLCHILDREN;
1390
1391	if(pScroll) mapWin32ToOS2Rect(window,(RECT *)pScroll, (PRECTLOS2)&scrollRect);
1392	if(pClip) mapWin32ToOS2Rect(window,(RECT *)pClip, (PRECTLOS2)&clipRect);
1393
1394	RECTL rectlUpdate;
1395	HRGN hrgn;
1396
1397	if (scrollFlag & SW_SMOOTHSCROLL_W)
1398	{
1399	INT time = (scrollFlag >> 16) & 0xFFFF;
1400
1401	//CB: todo, scroll in several steps
1402	// is time in ms? time <-> iteration count?
1403	}
1404
1405	LONG lComplexity = WinScrollWindow (window->getOS2WindowHandle(), dx, dy,
1406	(pScroll) ? &scrollRect : NULL,
1407	(pClip) ? &clipRect : NULL,
1408	hrgn, &rectlUpdate, scrollFlags);
1409	if (lComplexity == RGN_ERROR)
1410	{
1411	return ERROR_W;
1412	}
1413
1414	RECT winRectUpdate;
1415	LONG height = window->getClientHeight();
1416
1417	winRectUpdate.left = rectlUpdate.xLeft;
1418	winRectUpdate.right = rectlUpdate.xRight;
1419	winRectUpdate.top = height - rectlUpdate.yTop;
1420	winRectUpdate.bottom = height - rectlUpdate.yBottom;
1421
1422	if (pRectUpdate)
1423	*pRectUpdate = winRectUpdate;
1424
1425	if (hrgnUpdate)
1426	rc = setPMRgnIntoWinRgn (hrgn, hrgnUpdate, height);
1427
1428	if ((scrollFlag & SW_INVALIDATE_W) &&
1429	((lComplexity == RGN_RECT) \|\| (lComplexity == RGN_COMPLEX)))
1430	{
1431	rc = InvalidateRect (hwnd, &winRectUpdate, (scrollFlag & SW_ERASE_W) ? 1 : 0);
1432	if (rc == FALSE)
1433	{
1434	return (0);
1435	}
1436	}
1437
1438	switch (lComplexity)
1439	{
1440	case RGN_NULL:
1441	regionType = NULLREGION_W;
1442	break;
1443	case RGN_RECT:
1444	regionType = SIMPLEREGION_W;
1445	break;
1446	case RGN_COMPLEX:
1447	regionType = COMPLEXREGION_W;
1448	break;
1449	default:
1450	regionType = ERROR_W;
1451	break;
1452	}
1453
1454	return (regionType);
1455	}
1456	//******************************************************************************
1457	//******************************************************************************
1458	HWND WIN32API WindowFromDC(HDC hdc)
1459	{
1460	pDCData pHps = (pDCData)GpiQueryDCData( (HPS)hdc );
1461
1462	dprintf2(("USER32: WindowFromDC %x", hdc));
1463	if ( pHps )
1464	return Win32BaseWindow::OS2ToWin32Handle(pHps->hwnd);
1465	else
1466	return 0;
1467	}
1468	//******************************************************************************
1469	//******************************************************************************
1470	INT WIN32API ExcludeUpdateRgn( HDC hDC, HWND hWnd)
1471	{
1472	dprintf(("USER32: ExcludeUpdateRgn\n"));
1473	hWnd = Win32BaseWindow::Win32ToOS2Handle(hWnd);
1474
1475	return O32_ExcludeUpdateRgn(hDC,hWnd);
1476	}
1477	//******************************************************************************
1478	//******************************************************************************
1479	BOOL WIN32API ValidateRect( HWND hwnd, const RECT * lprc)
1480	{
1481	if(lprc) {
1482	dprintf(("USER32: ValidateRect %x (%d,%d)(%d,%d)", hwnd, lprc->left, lprc->top, lprc->right, lprc->bottom));
1483	}
1484	else dprintf(("USER32: ValidateRect %x", hwnd));
1485
1486	return RedrawWindow( hwnd, lprc, 0, RDW_VALIDATE_W \| RDW_NOCHILDREN_W \| (hwnd==0 ? RDW_UPDATENOW_W : 0));
1487	}
1488	//******************************************************************************
1489	//******************************************************************************
1490	BOOL WIN32API ValidateRgn( HWND hwnd, HRGN hrgn)
1491	{
1492	dprintf(("USER32: ValidateRgn %x %x", hwnd, hrgn));
1493	return RedrawWindow( hwnd, NULL, hrgn, RDW_VALIDATE_W \| RDW_NOCHILDREN_W \| (hwnd==0 ? RDW_UPDATENOW_W : 0));
1494	}
1495	/*****************************************************************************
1496	* Name : int WIN32API GetWindowRgn
1497	* Purpose : The GetWindowRgn function obtains a copy of the window region of a window.
1498	* Parameters: HWND hWnd handle to window whose window region is to be obtained
1499	* HRGN hRgn handle to region that receives a copy of the window region
1500	* Variables :
1501	* Result : NULLREGION, SIMPLEREGION, COMPLEXREGION, ERROR
1502	* Remark :
1503	* Status : UNTESTED STUB
1504	*
1505	* Author : Patrick Haller [Thu, 1998/02/26 11:55]
1506	*****************************************************************************/
1507
1508	int WIN32API GetWindowRgn(HWND hwnd, HRGN hRgn)
1509	{
1510	Win32BaseWindow *window;
1511	HRGN hWindowRegion;
1512
1513	window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1514	if(!window) {
1515	dprintf(("SetWindowContextHelpId, window %x not found", hwnd));
1516	O32_SetLastError(ERROR_INVALID_WINDOW_HANDLE);
1517	return 0;
1518	}
1519	dprintf(("USER32:GetWindowRgn (%x,%x)", hwnd, hRgn));
1520	hWindowRegion = window->GetWindowRegion();
1521
1522	return O32_CombineRgn(hRgn, hWindowRegion, 0, RGN_COPY_W);
1523	}
1524	/*****************************************************************************
1525	* Name : int WIN32API SetWindowRgn
1526	* Purpose : The SetWindowRgn function sets the window region of a window. The
1527	* window region determines the area within the window where the
1528	* operating system permits drawing. The operating system does not
1529	* display any portion of a window that lies outside of the window region
1530	* When this function is called, the system sends the WM_WINDOWPOSCHANGING and
1531	* WM_WINDOWPOSCHANGED messages to the window.
1532	*
1533	* Parameters: HWND hWnd handle to window whose window region is to be set
1534	* HRGN hRgn handle to region
1535	* BOOL bRedraw window redraw flag
1536	* Variables :
1537	* Result : If the function succeeds, the return value is non-zero.
1538	* If the function fails, the return value is zero.
1539	* Remark :
1540	* Status : UNTESTED STUB
1541	*
1542	* Author : Patrick Haller [Thu, 1998/02/26 11:55]
1543	*****************************************************************************/
1544
1545	int WIN32API SetWindowRgn(HWND hwnd,
1546	HRGN hRgn,
1547	BOOL bRedraw)
1548	{
1549	Win32BaseWindow *window;
1550	HRGN hWindowRegion;
1551
1552	window = Win32BaseWindow::GetWindowFromHandle(hwnd);
1553	if(!window) {
1554	dprintf(("SetWindowContextHelpId, window %x not found", hwnd));
1555	O32_SetLastError(ERROR_INVALID_WINDOW_HANDLE);
1556	return 0;
1557	}
1558	dprintf(("USER32:SetWindowRgn (%x,%x,%d)", hwnd, hRgn, bRedraw));
1559	if(window->GetWindowRegion()) {
1560	O32_DeleteObject(window->GetWindowRegion());
1561	}
1562	window->SetWindowRegion(hRgn);
1563	if(bRedraw) {
1564	RedrawWindow(hwnd, 0, 0, RDW_UPDATENOW_W);
1565	}
1566	//TODO:
1567	// When this function is called, the system sends the WM_WINDOWPOSCHANGING and
1568	// WM_WINDOWPOSCHANGED messages to the window.
1569	return 1;
1570	}
1571	//******************************************************************************
1572	//******************************************************************************

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