1 /*
2 * GDI Device Context functions
3 *
4 * Copyright 1993 Alexandre Julliard
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #include "config.h"
22
23 #include <assert.h>
24 #include <stdarg.h>
25 #include <stdlib.h>
26 #include <string.h>
27 #include "windef.h"
28 #include "winbase.h"
29 #include "wingdi.h"
30 #include "winreg.h"
31 #include "winternl.h"
32 #include "winerror.h"
33 #include "wownt32.h"
34 #include "gdi_private.h"
35 #include "wine/unicode.h"
36 #include "wine/debug.h"
37
38 WINE_DEFAULT_DEBUG_CHANNEL(dc);
39
40 static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
41
42 static BOOL DC_DeleteObject( HGDIOBJ handle );
43
44 static const struct gdi_obj_funcs dc_funcs =
45 {
46 NULL, /* pSelectObject */
47 NULL, /* pGetObjectA */
48 NULL, /* pGetObjectW */
49 NULL, /* pUnrealizeObject */
50 DC_DeleteObject /* pDeleteObject */
51 };
52
53
54 static inline DC *get_dc_obj( HDC hdc )
55 {
56 DC *dc = GDI_GetObjPtr( hdc, 0 );
57 if (!dc) return NULL;
58
59 if ((dc->header.type != OBJ_DC) &&
60 (dc->header.type != OBJ_MEMDC) &&
61 (dc->header.type != OBJ_METADC) &&
62 (dc->header.type != OBJ_ENHMETADC))
63 {
64 GDI_ReleaseObj( hdc );
65 SetLastError( ERROR_INVALID_HANDLE );
66 dc = NULL;
67 }
68 return dc;
69 }
70
71
72 /***********************************************************************
73 * alloc_dc_ptr
74 */
75 DC *alloc_dc_ptr( const DC_FUNCTIONS *funcs, WORD magic )
76 {
77 DC *dc;
78
79 if (!(dc = HeapAlloc( GetProcessHeap(), 0, sizeof(*dc) ))) return NULL;
80
81 dc->funcs = funcs;
82 dc->physDev = NULL;
83 dc->thread = GetCurrentThreadId();
84 dc->refcount = 1;
85 dc->dirty = 0;
86 dc->saveLevel = 0;
87 dc->saved_dc = 0;
88 dc->dwHookData = 0;
89 dc->hookProc = NULL;
90 dc->hookThunk = NULL;
91 dc->wndOrgX = 0;
92 dc->wndOrgY = 0;
93 dc->wndExtX = 1;
94 dc->wndExtY = 1;
95 dc->vportOrgX = 0;
96 dc->vportOrgY = 0;
97 dc->vportExtX = 1;
98 dc->vportExtY = 1;
99 dc->miterLimit = 10.0f; /* 10.0 is the default, from MSDN */
100 dc->flags = 0;
101 dc->layout = 0;
102 dc->hClipRgn = 0;
103 dc->hMetaRgn = 0;
104 dc->hMetaClipRgn = 0;
105 dc->hVisRgn = 0;
106 dc->hPen = GDI_inc_ref_count( GetStockObject( BLACK_PEN ));
107 dc->hBrush = GDI_inc_ref_count( GetStockObject( WHITE_BRUSH ));
108 dc->hFont = GDI_inc_ref_count( GetStockObject( SYSTEM_FONT ));
109 dc->hBitmap = 0;
110 dc->hDevice = 0;
111 dc->hPalette = GetStockObject( DEFAULT_PALETTE );
112 dc->gdiFont = 0;
113 dc->font_code_page = CP_ACP;
114 dc->ROPmode = R2_COPYPEN;
115 dc->polyFillMode = ALTERNATE;
116 dc->stretchBltMode = BLACKONWHITE;
117 dc->relAbsMode = ABSOLUTE;
118 dc->backgroundMode = OPAQUE;
119 dc->backgroundColor = RGB( 255, 255, 255 );
120 dc->dcBrushColor = RGB( 255, 255, 255 );
121 dc->dcPenColor = RGB( 0, 0, 0 );
122 dc->textColor = RGB( 0, 0, 0 );
123 dc->brushOrgX = 0;
124 dc->brushOrgY = 0;
125 dc->textAlign = TA_LEFT | TA_TOP | TA_NOUPDATECP;
126 dc->charExtra = 0;
127 dc->breakExtra = 0;
128 dc->breakRem = 0;
129 dc->MapMode = MM_TEXT;
130 dc->GraphicsMode = GM_COMPATIBLE;
131 dc->pAbortProc = NULL;
132 dc->CursPosX = 0;
133 dc->CursPosY = 0;
134 dc->ArcDirection = AD_COUNTERCLOCKWISE;
135 dc->xformWorld2Wnd.eM11 = 1.0f;
136 dc->xformWorld2Wnd.eM12 = 0.0f;
137 dc->xformWorld2Wnd.eM21 = 0.0f;
138 dc->xformWorld2Wnd.eM22 = 1.0f;
139 dc->xformWorld2Wnd.eDx = 0.0f;
140 dc->xformWorld2Wnd.eDy = 0.0f;
141 dc->xformWorld2Vport = dc->xformWorld2Wnd;
142 dc->xformVport2World = dc->xformWorld2Wnd;
143 dc->vport2WorldValid = TRUE;
144 dc->BoundsRect.left = 0;
145 dc->BoundsRect.top = 0;
146 dc->BoundsRect.right = 0;
147 dc->BoundsRect.bottom = 0;
148 dc->saved_visrgn = NULL;
149 PATH_InitGdiPath(&dc->path);
150
151 if (!(dc->hSelf = alloc_gdi_handle( &dc->header, magic, &dc_funcs )))
152 {
153 HeapFree( GetProcessHeap(), 0, dc );
154 dc = NULL;
155 }
156 return dc;
157 }
158
159
160
161 /***********************************************************************
162 * free_dc_ptr
163 */
164 BOOL free_dc_ptr( DC *dc )
165 {
166 assert( dc->refcount == 1 );
167 if (free_gdi_handle( dc->hSelf ) != dc) return FALSE; /* shouldn't happen */
168 if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
169 if (dc->hMetaRgn) DeleteObject( dc->hMetaRgn );
170 if (dc->hMetaClipRgn) DeleteObject( dc->hMetaClipRgn );
171 if (dc->hVisRgn) DeleteObject( dc->hVisRgn );
172 PATH_DestroyGdiPath( &dc->path );
173 return HeapFree( GetProcessHeap(), 0, dc );
174 }
175
176
177 /***********************************************************************
178 * get_dc_ptr
179 *
180 * Retrieve a DC pointer but release the GDI lock.
181 */
182 DC *get_dc_ptr( HDC hdc )
183 {
184 DC *dc = get_dc_obj( hdc );
185 if (!dc) return NULL;
186
187 if (!InterlockedCompareExchange( &dc->refcount, 1, 0 ))
188 {
189 dc->thread = GetCurrentThreadId();
190 }
191 else if (dc->thread != GetCurrentThreadId())
192 {
193 WARN( "dc %p belongs to thread %04x\n", hdc, dc->thread );
194 GDI_ReleaseObj( hdc );
195 return NULL;
196 }
197 else InterlockedIncrement( &dc->refcount );
198
199 GDI_ReleaseObj( hdc );
200 return dc;
201 }
202
203
204 /***********************************************************************
205 * release_dc_ptr
206 */
207 void release_dc_ptr( DC *dc )
208 {
209 LONG ref;
210
211 dc->thread = 0;
212 ref = InterlockedDecrement( &dc->refcount );
213 assert( ref >= 0 );
214 if (ref) dc->thread = GetCurrentThreadId(); /* we still own it */
215 }
216
217
218 /***********************************************************************
219 * update_dc
220 *
221 * Make sure the DC vis region is up to date.
222 * This function may call up to USER so the GDI lock should _not_
223 * be held when calling it.
224 */
225 void update_dc( DC *dc )
226 {
227 if (InterlockedExchange( &dc->dirty, 0 ) && dc->hookThunk)
228 dc->hookThunk( dc->hSelf, DCHC_INVALIDVISRGN, dc->dwHookData, 0 );
229 }
230
231
232 /***********************************************************************
233 * DC_DeleteObject
234 */
235 static BOOL DC_DeleteObject( HGDIOBJ handle )
236 {
237 return DeleteDC( handle );
238 }
239
240
241 /***********************************************************************
242 * DC_InitDC
243 *
244 * Setup device-specific DC values for a newly created DC.
245 */
246 void DC_InitDC( DC* dc )
247 {
248 if (dc->funcs->pRealizeDefaultPalette) dc->funcs->pRealizeDefaultPalette( dc->physDev );
249 SetTextColor( dc->hSelf, dc->textColor );
250 SetBkColor( dc->hSelf, dc->backgroundColor );
251 SelectObject( dc->hSelf, dc->hPen );
252 SelectObject( dc->hSelf, dc->hBrush );
253 SelectObject( dc->hSelf, dc->hFont );
254 CLIPPING_UpdateGCRegion( dc );
255 }
256
257
258 /***********************************************************************
259 * DC_InvertXform
260 *
261 * Computes the inverse of the transformation xformSrc and stores it to
262 * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
263 * is singular.
264 */
265 static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
266 {
267 double determinant;
268
269 determinant = xformSrc->eM11*xformSrc->eM22 -
270 xformSrc->eM12*xformSrc->eM21;
271 if (determinant > -1e-12 && determinant < 1e-12)
272 return FALSE;
273
274 xformDest->eM11 = xformSrc->eM22 / determinant;
275 xformDest->eM12 = -xformSrc->eM12 / determinant;
276 xformDest->eM21 = -xformSrc->eM21 / determinant;
277 xformDest->eM22 = xformSrc->eM11 / determinant;
278 xformDest->eDx = -xformSrc->eDx * xformDest->eM11 -
279 xformSrc->eDy * xformDest->eM21;
280 xformDest->eDy = -xformSrc->eDx * xformDest->eM12 -
281 xformSrc->eDy * xformDest->eM22;
282
283 return TRUE;
284 }
285
286
287 /***********************************************************************
288 * DC_UpdateXforms
289 *
290 * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
291 * fields of the specified DC by creating a transformation that
292 * represents the current mapping mode and combining it with the DC's
293 * world transform. This function should be called whenever the
294 * parameters associated with the mapping mode (window and viewport
295 * extents and origins) or the world transform change.
296 */
297 void DC_UpdateXforms( DC *dc )
298 {
299 XFORM xformWnd2Vport, oldworld2vport;
300 double scaleX, scaleY;
301
302 /* Construct a transformation to do the window-to-viewport conversion */
303 scaleX = (double)dc->vportExtX / (double)dc->wndExtX;
304 scaleY = (double)dc->vportExtY / (double)dc->wndExtY;
305 xformWnd2Vport.eM11 = scaleX;
306 xformWnd2Vport.eM12 = 0.0;
307 xformWnd2Vport.eM21 = 0.0;
308 xformWnd2Vport.eM22 = scaleY;
309 xformWnd2Vport.eDx = (double)dc->vportOrgX -
310 scaleX * (double)dc->wndOrgX;
311 xformWnd2Vport.eDy = (double)dc->vportOrgY -
312 scaleY * (double)dc->wndOrgY;
313
314 oldworld2vport = dc->xformWorld2Vport;
315 /* Combine with the world transformation */
316 CombineTransform( &dc->xformWorld2Vport, &dc->xformWorld2Wnd,
317 &xformWnd2Vport );
318
319 /* Create inverse of world-to-viewport transformation */
320 dc->vport2WorldValid = DC_InvertXform( &dc->xformWorld2Vport,
321 &dc->xformVport2World );
322
323 /* Reselect the font and pen back into the dc so that the size
324 gets updated. */
325 if (memcmp(&oldworld2vport, &dc->xformWorld2Vport, sizeof(oldworld2vport)) &&
326 !GdiIsMetaFileDC(dc->hSelf))
327 {
328 SelectObject(dc->hSelf, GetCurrentObject(dc->hSelf, OBJ_FONT));
329 SelectObject(dc->hSelf, GetCurrentObject(dc->hSelf, OBJ_PEN));
330 }
331 }
332
333
334 /***********************************************************************
335 * save_dc_state
336 */
337 INT save_dc_state( HDC hdc )
338 {
339 DC * newdc, * dc;
340 INT ret;
341
342 if (!(dc = get_dc_ptr( hdc ))) return 0;
343 if (!(newdc = HeapAlloc( GetProcessHeap(), 0, sizeof(*newdc ))))
344 {
345 release_dc_ptr( dc );
346 return 0;
347 }
348
349 newdc->flags = dc->flags | DC_SAVED;
350 newdc->layout = dc->layout;
351 newdc->hPen = dc->hPen;
352 newdc->hBrush = dc->hBrush;
353 newdc->hFont = dc->hFont;
354 newdc->hBitmap = dc->hBitmap;
355 newdc->hDevice = dc->hDevice;
356 newdc->hPalette = dc->hPalette;
357 newdc->ROPmode = dc->ROPmode;
358 newdc->polyFillMode = dc->polyFillMode;
359 newdc->stretchBltMode = dc->stretchBltMode;
360 newdc->relAbsMode = dc->relAbsMode;
361 newdc->backgroundMode = dc->backgroundMode;
362 newdc->backgroundColor = dc->backgroundColor;
363 newdc->textColor = dc->textColor;
364 newdc->dcBrushColor = dc->dcBrushColor;
365 newdc->dcPenColor = dc->dcPenColor;
366 newdc->brushOrgX = dc->brushOrgX;
367 newdc->brushOrgY = dc->brushOrgY;
368 newdc->textAlign = dc->textAlign;
369 newdc->charExtra = dc->charExtra;
370 newdc->breakExtra = dc->breakExtra;
371 newdc->breakRem = dc->breakRem;
372 newdc->MapMode = dc->MapMode;
373 newdc->GraphicsMode = dc->GraphicsMode;
374 newdc->CursPosX = dc->CursPosX;
375 newdc->CursPosY = dc->CursPosY;
376 newdc->ArcDirection = dc->ArcDirection;
377 newdc->xformWorld2Wnd = dc->xformWorld2Wnd;
378 newdc->xformWorld2Vport = dc->xformWorld2Vport;
379 newdc->xformVport2World = dc->xformVport2World;
380 newdc->vport2WorldValid = dc->vport2WorldValid;
381 newdc->wndOrgX = dc->wndOrgX;
382 newdc->wndOrgY = dc->wndOrgY;
383 newdc->wndExtX = dc->wndExtX;
384 newdc->wndExtY = dc->wndExtY;
385 newdc->vportOrgX = dc->vportOrgX;
386 newdc->vportOrgY = dc->vportOrgY;
387 newdc->vportExtX = dc->vportExtX;
388 newdc->vportExtY = dc->vportExtY;
389 newdc->BoundsRect = dc->BoundsRect;
390 newdc->gdiFont = dc->gdiFont;
391
392 newdc->thread = GetCurrentThreadId();
393 newdc->refcount = 1;
394 newdc->saveLevel = 0;
395 newdc->saved_dc = 0;
396
397 PATH_InitGdiPath( &newdc->path );
398
399 newdc->pAbortProc = NULL;
400 newdc->hookThunk = NULL;
401 newdc->hookProc = 0;
402 newdc->saved_visrgn = NULL;
403
404 if (!(newdc->hSelf = alloc_gdi_handle( &newdc->header, dc->header.type, &dc_funcs )))
405 {
406 HeapFree( GetProcessHeap(), 0, newdc );
407 release_dc_ptr( dc );
408 return 0;
409 }
410
411 /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
412
413 newdc->hVisRgn = 0;
414 newdc->hClipRgn = 0;
415 newdc->hMetaRgn = 0;
416 newdc->hMetaClipRgn = 0;
417 if (dc->hClipRgn)
418 {
419 newdc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
420 CombineRgn( newdc->hClipRgn, dc->hClipRgn, 0, RGN_COPY );
421 }
422 if (dc->hMetaRgn)
423 {
424 newdc->hMetaRgn = CreateRectRgn( 0, 0, 0, 0 );
425 CombineRgn( newdc->hMetaRgn, dc->hMetaRgn, 0, RGN_COPY );
426 }
427 /* don't bother recomputing hMetaClipRgn, we'll do that in SetDCState */
428
429 if (!PATH_AssignGdiPath( &newdc->path, &dc->path ))
430 {
431 release_dc_ptr( dc );
432 free_dc_ptr( newdc );
433 return 0;
434 }
435
436 newdc->saved_dc = dc->saved_dc;
437 dc->saved_dc = newdc->hSelf;
438 ret = ++dc->saveLevel;
439 release_dc_ptr( newdc );
440 release_dc_ptr( dc );
441 return ret;
442 }
443
444
445 /***********************************************************************
446 * restore_dc_state
447 */
448 BOOL restore_dc_state( HDC hdc, INT level )
449 {
450 HDC hdcs, first_dcs;
451 DC *dc, *dcs;
452 INT save_level;
453
454 if (!(dc = get_dc_ptr( hdc ))) return FALSE;
455
456 /* find the state level to restore */
457
458 if (abs(level) > dc->saveLevel || level == 0)
459 {
460 release_dc_ptr( dc );
461 return FALSE;
462 }
463 if (level < 0) level = dc->saveLevel + level + 1;
464 first_dcs = dc->saved_dc;
465 for (hdcs = first_dcs, save_level = dc->saveLevel; save_level > level; save_level--)
466 {
467 if (!(dcs = get_dc_ptr( hdcs )))
468 {
469 release_dc_ptr( dc );
470 return FALSE;
471 }
472 hdcs = dcs->saved_dc;
473 release_dc_ptr( dcs );
474 }
475
476 /* restore the state */
477
478 if (!(dcs = get_dc_ptr( hdcs )))
479 {
480 release_dc_ptr( dc );
481 return FALSE;
482 }
483 if (!PATH_AssignGdiPath( &dc->path, &dcs->path ))
484 {
485 release_dc_ptr( dcs );
486 release_dc_ptr( dc );
487 return FALSE;
488 }
489
490 dc->flags = dcs->flags & ~DC_SAVED;
491 dc->layout = dcs->layout;
492 dc->hDevice = dcs->hDevice;
493 dc->ROPmode = dcs->ROPmode;
494 dc->polyFillMode = dcs->polyFillMode;
495 dc->stretchBltMode = dcs->stretchBltMode;
496 dc->relAbsMode = dcs->relAbsMode;
497 dc->backgroundMode = dcs->backgroundMode;
498 dc->backgroundColor = dcs->backgroundColor;
499 dc->textColor = dcs->textColor;
500 dc->dcBrushColor = dcs->dcBrushColor;
501 dc->dcPenColor = dcs->dcPenColor;
502 dc->brushOrgX = dcs->brushOrgX;
503 dc->brushOrgY = dcs->brushOrgY;
504 dc->textAlign = dcs->textAlign;
505 dc->charExtra = dcs->charExtra;
506 dc->breakExtra = dcs->breakExtra;
507 dc->breakRem = dcs->breakRem;
508 dc->MapMode = dcs->MapMode;
509 dc->GraphicsMode = dcs->GraphicsMode;
510 dc->CursPosX = dcs->CursPosX;
511 dc->CursPosY = dcs->CursPosY;
512 dc->ArcDirection = dcs->ArcDirection;
513 dc->xformWorld2Wnd = dcs->xformWorld2Wnd;
514 dc->xformWorld2Vport = dcs->xformWorld2Vport;
515 dc->xformVport2World = dcs->xformVport2World;
516 dc->vport2WorldValid = dcs->vport2WorldValid;
517 dc->BoundsRect = dcs->BoundsRect;
518
519 dc->wndOrgX = dcs->wndOrgX;
520 dc->wndOrgY = dcs->wndOrgY;
521 dc->wndExtX = dcs->wndExtX;
522 dc->wndExtY = dcs->wndExtY;
523 dc->vportOrgX = dcs->vportOrgX;
524 dc->vportOrgY = dcs->vportOrgY;
525 dc->vportExtX = dcs->vportExtX;
526 dc->vportExtY = dcs->vportExtY;
527
528 if (dcs->hClipRgn)
529 {
530 if (!dc->hClipRgn) dc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
531 CombineRgn( dc->hClipRgn, dcs->hClipRgn, 0, RGN_COPY );
532 }
533 else
534 {
535 if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
536 dc->hClipRgn = 0;
537 }
538 if (dcs->hMetaRgn)
539 {
540 if (!dc->hMetaRgn) dc->hMetaRgn = CreateRectRgn( 0, 0, 0, 0 );
541 CombineRgn( dc->hMetaRgn, dcs->hMetaRgn, 0, RGN_COPY );
542 }
543 else
544 {
545 if (dc->hMetaRgn) DeleteObject( dc->hMetaRgn );
546 dc->hMetaRgn = 0;
547 }
548 CLIPPING_UpdateGCRegion( dc );
549
550 SelectObject( hdc, dcs->hBitmap );
551 SelectObject( hdc, dcs->hBrush );
552 SelectObject( hdc, dcs->hFont );
553 SelectObject( hdc, dcs->hPen );
554 SetBkColor( hdc, dcs->backgroundColor);
555 SetTextColor( hdc, dcs->textColor);
556 GDISelectPalette( hdc, dcs->hPalette, FALSE );
557
558 dc->saved_dc = dcs->saved_dc;
559 dcs->saved_dc = 0;
560 dc->saveLevel = save_level - 1;
561
562 release_dc_ptr( dcs );
563
564 /* now destroy all the saved DCs */
565
566 while (first_dcs)
567 {
568 if (!(dcs = get_dc_ptr( first_dcs ))) break;
569 hdcs = dcs->saved_dc;
570 free_dc_ptr( dcs );
571 first_dcs = hdcs;
572 }
573 release_dc_ptr( dc );
574 return TRUE;
575 }
576
577
578 /***********************************************************************
579 * SaveDC (GDI32.@)
580 */
581 INT WINAPI SaveDC( HDC hdc )
582 {
583 DC * dc;
584 INT ret;
585
586 if (!(dc = get_dc_ptr( hdc ))) return 0;
587
588 if(dc->funcs->pSaveDC)
589 ret = dc->funcs->pSaveDC( dc->physDev );
590 else
591 ret = save_dc_state( hdc );
592
593 release_dc_ptr( dc );
594 return ret;
595 }
596
597
598 /***********************************************************************
599 * RestoreDC (GDI32.@)
600 */
601 BOOL WINAPI RestoreDC( HDC hdc, INT level )
602 {
603 DC *dc;
604 BOOL success;
605
606 TRACE("%p %d\n", hdc, level );
607 if (!(dc = get_dc_ptr( hdc ))) return FALSE;
608 update_dc( dc );
609
610 if(dc->funcs->pRestoreDC)
611 success = dc->funcs->pRestoreDC( dc->physDev, level );
612 else
613 success = restore_dc_state( hdc, level );
614
615 release_dc_ptr( dc );
616 return success;
617 }
618
619
620 /***********************************************************************
621 * CreateDCW (GDI32.@)
622 */
623 HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
624 const DEVMODEW *initData )
625 {
626 HDC hdc;
627 DC * dc;
628 const DC_FUNCTIONS *funcs;
629 WCHAR buf[300];
630
631 GDI_CheckNotLock();
632
633 if (!device || !DRIVER_GetDriverName( device, buf, 300 ))
634 {
635 if (!driver)
636 {
637 ERR( "no device found for %s\n", debugstr_w(device) );
638 return 0;
639 }
640 strcpyW(buf, driver);
641 }
642
643 if (!(funcs = DRIVER_load_driver( buf )))
644 {
645 ERR( "no driver found for %s\n", debugstr_w(buf) );
646 return 0;
647 }
648 if (!(dc = alloc_dc_ptr( funcs, OBJ_DC ))) goto error;
649 hdc = dc->hSelf;
650
651 dc->hBitmap = GDI_inc_ref_count( GetStockObject( DEFAULT_BITMAP ));
652 if (!(dc->hVisRgn = CreateRectRgn( 0, 0, 1, 1 ))) goto error;
653
654 TRACE("(driver=%s, device=%s, output=%s): returning %p\n",
655 debugstr_w(driver), debugstr_w(device), debugstr_w(output), dc->hSelf );
656
657 if (dc->funcs->pCreateDC &&
658 !dc->funcs->pCreateDC( hdc, &dc->physDev, buf, device, output, initData ))
659 {
660 WARN("creation aborted by device\n" );
661 goto error;
662 }
663
664 SetRectRgn( dc->hVisRgn, 0, 0,
665 GetDeviceCaps( hdc, DESKTOPHORZRES ), GetDeviceCaps( hdc, DESKTOPVERTRES ) );
666
667 DC_InitDC( dc );
668 release_dc_ptr( dc );
669 return hdc;
670
671 error:
672 if (dc) free_dc_ptr( dc );
673 DRIVER_release_driver( funcs );
674 return 0;
675 }
676
677
678 /***********************************************************************
679 * CreateDCA (GDI32.@)
680 */
681 HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
682 const DEVMODEA *initData )
683 {
684 UNICODE_STRING driverW, deviceW, outputW;
685 DEVMODEW *initDataW;
686 HDC ret;
687
688 if (driver) RtlCreateUnicodeStringFromAsciiz(&driverW, driver);
689 else driverW.Buffer = NULL;
690
691 if (device) RtlCreateUnicodeStringFromAsciiz(&deviceW, device);
692 else deviceW.Buffer = NULL;
693
694 if (output) RtlCreateUnicodeStringFromAsciiz(&outputW, output);
695 else outputW.Buffer = NULL;
696
697 initDataW = NULL;
698 if (initData)
699 {
700 /* don't convert initData for DISPLAY driver, it's not used */
701 if (!driverW.Buffer || strcmpiW( driverW.Buffer, displayW ))
702 initDataW = GdiConvertToDevmodeW(initData);
703 }
704
705 ret = CreateDCW( driverW.Buffer, deviceW.Buffer, outputW.Buffer, initDataW );
706
707 RtlFreeUnicodeString(&driverW);
708 RtlFreeUnicodeString(&deviceW);
709 RtlFreeUnicodeString(&outputW);
710 HeapFree(GetProcessHeap(), 0, initDataW);
711 return ret;
712 }
713
714
715 /***********************************************************************
716 * CreateICA (GDI32.@)
717 */
718 HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
719 const DEVMODEA* initData )
720 {
721 /* Nothing special yet for ICs */
722 return CreateDCA( driver, device, output, initData );
723 }
724
725
726 /***********************************************************************
727 * CreateICW (GDI32.@)
728 */
729 HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
730 const DEVMODEW* initData )
731 {
732 /* Nothing special yet for ICs */
733 return CreateDCW( driver, device, output, initData );
734 }
735
736
737 /***********************************************************************
738 * CreateCompatibleDC (GDI32.@)
739 */
740 HDC WINAPI CreateCompatibleDC( HDC hdc )
741 {
742 DC *dc, *origDC;
743 HDC ret;
744 const DC_FUNCTIONS *funcs = NULL;
745 PHYSDEV physDev = NULL;
746
747 GDI_CheckNotLock();
748
749 if ((origDC = get_dc_ptr( hdc )))
750 {
751 if (GetObjectType( hdc ) == OBJ_DC)
752 {
753 funcs = origDC->funcs;
754 physDev = origDC->physDev;
755 }
756 release_dc_ptr( origDC );
757 if (funcs) funcs = DRIVER_get_driver( funcs );
758 }
759 else if (hdc) return 0;
760
761 if (!funcs && !(funcs = DRIVER_load_driver( displayW ))) return 0;
762
763 if (!(dc = alloc_dc_ptr( funcs, OBJ_MEMDC ))) goto error;
764
765 TRACE("(%p): returning %p\n", hdc, dc->hSelf );
766
767 dc->hBitmap = GDI_inc_ref_count( GetStockObject( DEFAULT_BITMAP ));
768 if (!(dc->hVisRgn = CreateRectRgn( 0, 0, 1, 1 ))) goto error; /* default bitmap is 1x1 */
769
770 /* Copy the driver-specific physical device info into
771 * the new DC. The driver may use this read-only info
772 * while creating the compatible DC below. */
773 dc->physDev = physDev;
774 ret = dc->hSelf;
775
776 if (dc->funcs->pCreateDC &&
777 !dc->funcs->pCreateDC( dc->hSelf, &dc->physDev, NULL, NULL, NULL, NULL ))
778 {
779 WARN("creation aborted by device\n");
780 goto error;
781 }
782
783 DC_InitDC( dc );
784 release_dc_ptr( dc );
785 return ret;
786
787 error:
788 if (dc) free_dc_ptr( dc );
789 DRIVER_release_driver( funcs );
790 return 0;
791 }
792
793
794 /***********************************************************************
795 * DeleteDC (GDI32.@)
796 */
797 BOOL WINAPI DeleteDC( HDC hdc )
798 {
799 const DC_FUNCTIONS *funcs = NULL;
800 DC * dc;
801
802 TRACE("%p\n", hdc );
803
804 GDI_CheckNotLock();
805
806 if (!(dc = get_dc_ptr( hdc ))) return FALSE;
807 if (dc->refcount != 1)
808 {
809 FIXME( "not deleting busy DC %p refcount %u\n", dc->hSelf, dc->refcount );
810 release_dc_ptr( dc );
811 return FALSE;
812 }
813
814 /* Call hook procedure to check whether is it OK to delete this DC */
815 if (dc->hookThunk && !dc->hookThunk( hdc, DCHC_DELETEDC, dc->dwHookData, 0 ))
816 {
817 release_dc_ptr( dc );
818 return FALSE;
819 }
820
821 while (dc->saveLevel)
822 {
823 DC * dcs;
824 HDC hdcs = dc->saved_dc;
825 if (!(dcs = get_dc_ptr( hdcs ))) break;
826 dc->saved_dc = dcs->saved_dc;
827 dc->saveLevel--;
828 free_dc_ptr( dcs );
829 }
830
831 if (!(dc->flags & DC_SAVED))
832 {
833 SelectObject( hdc, GetStockObject(BLACK_PEN) );
834 SelectObject( hdc, GetStockObject(WHITE_BRUSH) );
835 SelectObject( hdc, GetStockObject(SYSTEM_FONT) );
836 SelectObject( hdc, GetStockObject(DEFAULT_BITMAP) );
837 funcs = dc->funcs;
838 if (dc->funcs->pDeleteDC) dc->funcs->pDeleteDC(dc->physDev);
839 dc->physDev = NULL;
840 }
841
842 while (dc->saved_visrgn)
843 {
844 struct saved_visrgn *next = dc->saved_visrgn->next;
845 DeleteObject( dc->saved_visrgn->hrgn );
846 HeapFree( GetProcessHeap(), 0, dc->saved_visrgn );
847 dc->saved_visrgn = next;
848 }
849
850 free_dc_ptr( dc );
851 if (funcs) DRIVER_release_driver( funcs ); /* do that after releasing the GDI lock */
852 return TRUE;
853 }
854
855
856 /***********************************************************************
857 * ResetDCW (GDI32.@)
858 */
859 HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
860 {
861 DC *dc;
862 HDC ret = hdc;
863
864 if ((dc = get_dc_ptr( hdc )))
865 {
866 if (dc->funcs->pResetDC) ret = dc->funcs->pResetDC( dc->physDev, devmode );
867 release_dc_ptr( dc );
868 }
869 return ret;
870 }
871
872
873 /***********************************************************************
874 * ResetDCA (GDI32.@)
875 */
876 HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
877 {
878 DEVMODEW *devmodeW;
879 HDC ret;
880
881 if (devmode) devmodeW = GdiConvertToDevmodeW(devmode);
882 else devmodeW = NULL;
883
884 ret = ResetDCW(hdc, devmodeW);
885
886 HeapFree(GetProcessHeap(), 0, devmodeW);
887 return ret;
888 }
889
890
891 /***********************************************************************
892 * GetDeviceCaps (GDI32.@)
893 */
894 INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
895 {
896 DC *dc;
897 INT ret = 0;
898
899 if ((dc = get_dc_ptr( hdc )))
900 {
901 if (dc->funcs->pGetDeviceCaps) ret = dc->funcs->pGetDeviceCaps( dc->physDev, cap );
902 else switch(cap) /* return meaningful values for some entries */
903 {
904 case HORZRES: ret = 640; break;
905 case VERTRES: ret = 480; break;
906 case BITSPIXEL: ret = 1; break;
907 case PLANES: ret = 1; break;
908 case NUMCOLORS: ret = 2; break;
909 case ASPECTX: ret = 36; break;
910 case ASPECTY: ret = 36; break;
911 case ASPECTXY: ret = 51; break;
912 case LOGPIXELSX: ret = 72; break;
913 case LOGPIXELSY: ret = 72; break;
914 case SIZEPALETTE: ret = 2; break;
915 }
916 release_dc_ptr( dc );
917 }
918 return ret;
919 }
920
921
922 /***********************************************************************
923 * GetBkColor (GDI32.@)
924 */
925 COLORREF WINAPI GetBkColor( HDC hdc )
926 {
927 COLORREF ret = 0;
928 DC * dc = get_dc_ptr( hdc );
929 if (dc)
930 {
931 ret = dc->backgroundColor;
932 release_dc_ptr( dc );
933 }
934 return ret;
935 }
936
937
938 /***********************************************************************
939 * SetBkColor (GDI32.@)
940 */
941 COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
942 {
943 COLORREF oldColor;
944 DC * dc = get_dc_ptr( hdc );
945
946 TRACE("hdc=%p color=0x%08x\n", hdc, color);
947
948 if (!dc) return CLR_INVALID;
949 oldColor = dc->backgroundColor;
950 if (dc->funcs->pSetBkColor)
951 {
952 color = dc->funcs->pSetBkColor(dc->physDev, color);
953 if (color == CLR_INVALID) /* don't change it */
954 {
955 color = oldColor;
956 oldColor = CLR_INVALID;
957 }
958 }
959 dc->backgroundColor = color;
960 release_dc_ptr( dc );
961 return oldColor;
962 }
963
964
965 /***********************************************************************
966 * GetTextColor (GDI32.@)
967 */
968 COLORREF WINAPI GetTextColor( HDC hdc )
969 {
970 COLORREF ret = 0;
971 DC * dc = get_dc_ptr( hdc );
972 if (dc)
973 {
974 ret = dc->textColor;
975 release_dc_ptr( dc );
976 }
977 return ret;
978 }
979
980
981 /***********************************************************************
982 * SetTextColor (GDI32.@)
983 */
984 COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
985 {
986 COLORREF oldColor;
987 DC * dc = get_dc_ptr( hdc );
988
989 TRACE(" hdc=%p color=0x%08x\n", hdc, color);
990
991 if (!dc) return CLR_INVALID;
992 oldColor = dc->textColor;
993 if (dc->funcs->pSetTextColor)
994 {
995 color = dc->funcs->pSetTextColor(dc->physDev, color);
996 if (color == CLR_INVALID) /* don't change it */
997 {
998 color = oldColor;
999 oldColor = CLR_INVALID;
1000 }
1001 }
1002 dc->textColor = color;
1003 release_dc_ptr( dc );
1004 return oldColor;
1005 }
1006
1007
1008 /***********************************************************************
1009 * GetTextAlign (GDI32.@)
1010 */
1011 UINT WINAPI GetTextAlign( HDC hdc )
1012 {
1013 UINT ret = 0;
1014 DC * dc = get_dc_ptr( hdc );
1015 if (dc)
1016 {
1017 ret = dc->textAlign;
1018 release_dc_ptr( dc );
1019 }
1020 return ret;
1021 }
1022
1023
1024 /***********************************************************************
1025 * SetTextAlign (GDI32.@)
1026 */
1027 UINT WINAPI SetTextAlign( HDC hdc, UINT align )
1028 {
1029 UINT ret;
1030 DC *dc = get_dc_ptr( hdc );
1031
1032 TRACE("hdc=%p align=%d\n", hdc, align);
1033
1034 if (!dc) return 0x0;
1035 ret = dc->textAlign;
1036 if (dc->funcs->pSetTextAlign)
1037 if (!dc->funcs->pSetTextAlign(dc->physDev, align))
1038 ret = GDI_ERROR;
1039 if (ret != GDI_ERROR)
1040 dc->textAlign = align;
1041 release_dc_ptr( dc );
1042 return ret;
1043 }
1044
1045 /***********************************************************************
1046 * GetDCOrgEx (GDI32.@)
1047 */
1048 BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
1049 {
1050 DC * dc;
1051
1052 if (!lpp) return FALSE;
1053 if (!(dc = get_dc_ptr( hDC ))) return FALSE;
1054
1055 lpp->x = lpp->y = 0;
1056 if (dc->funcs->pGetDCOrgEx) dc->funcs->pGetDCOrgEx( dc->physDev, lpp );
1057 release_dc_ptr( dc );
1058 return TRUE;
1059 }
1060
1061
1062 /***********************************************************************
1063 * GetGraphicsMode (GDI32.@)
1064 */
1065 INT WINAPI GetGraphicsMode( HDC hdc )
1066 {
1067 INT ret = 0;
1068 DC * dc = get_dc_ptr( hdc );
1069 if (dc)
1070 {
1071 ret = dc->GraphicsMode;
1072 release_dc_ptr( dc );
1073 }
1074 return ret;
1075 }
1076
1077
1078 /***********************************************************************
1079 * SetGraphicsMode (GDI32.@)
1080 */
1081 INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
1082 {
1083 INT ret = 0;
1084 DC *dc = get_dc_ptr( hdc );
1085
1086 /* One would think that setting the graphics mode to GM_COMPATIBLE
1087 * would also reset the world transformation matrix to the unity
1088 * matrix. However, in Windows, this is not the case. This doesn't
1089 * make a lot of sense to me, but that's the way it is.
1090 */
1091 if (!dc) return 0;
1092 if ((mode > 0) && (mode <= GM_LAST))
1093 {
1094 ret = dc->GraphicsMode;
1095 dc->GraphicsMode = mode;
1096 }
1097 release_dc_ptr( dc );
1098 return ret;
1099 }
1100
1101
1102 /***********************************************************************
1103 * GetArcDirection (GDI32.@)
1104 */
1105 INT WINAPI GetArcDirection( HDC hdc )
1106 {
1107 INT ret = 0;
1108 DC * dc = get_dc_ptr( hdc );
1109 if (dc)
1110 {
1111 ret = dc->ArcDirection;
1112 release_dc_ptr( dc );
1113 }
1114 return ret;
1115 }
1116
1117
1118 /***********************************************************************
1119 * SetArcDirection (GDI32.@)
1120 */
1121 INT WINAPI SetArcDirection( HDC hdc, INT nDirection )
1122 {
1123 DC * dc;
1124 INT nOldDirection = 0;
1125
1126 if (nDirection!=AD_COUNTERCLOCKWISE && nDirection!=AD_CLOCKWISE)
1127 {
1128 SetLastError(ERROR_INVALID_PARAMETER);
1129 return 0;
1130 }
1131
1132 if ((dc = get_dc_ptr( hdc )))
1133 {
1134 if (dc->funcs->pSetArcDirection)
1135 {
1136 dc->funcs->pSetArcDirection(dc->physDev, nDirection);
1137 }
1138 nOldDirection = dc->ArcDirection;
1139 dc->ArcDirection = nDirection;
1140 release_dc_ptr( dc );
1141 }
1142 return nOldDirection;
1143 }
1144
1145
1146 /***********************************************************************
1147 * GetWorldTransform (GDI32.@)
1148 */
1149 BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
1150 {
1151 DC * dc;
1152 if (!xform) return FALSE;
1153 if (!(dc = get_dc_ptr( hdc ))) return FALSE;
1154 *xform = dc->xformWorld2Wnd;
1155 release_dc_ptr( dc );
1156 return TRUE;
1157 }
1158
1159
1160 /***********************************************************************
1161 * GetTransform (GDI32.@)
1162 */
1163 BOOL WINAPI GetTransform( HDC hdc, DWORD unknown, LPXFORM xform )
1164 {
1165 if (unknown == 0x0203) return GetWorldTransform( hdc, xform );
1166 FIXME("stub: don't know what to do for code %x\n", unknown );
1167 return FALSE;
1168 }
1169
1170
1171 /***********************************************************************
1172 * SetWorldTransform (GDI32.@)
1173 */
1174 BOOL WINAPI SetWorldTransform( HDC hdc, const XFORM *xform )
1175 {
1176 BOOL ret = FALSE;
1177 DC *dc;
1178
1179 if (!xform) return FALSE;
1180
1181 dc = get_dc_ptr( hdc );
1182 if (!dc) return FALSE;
1183
1184 /* Check that graphics mode is GM_ADVANCED */
1185 if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1186
1187 TRACE("eM11 %f eM12 %f eM21 %f eM22 %f eDx %f eDy %f\n",
1188 xform->eM11, xform->eM12, xform->eM21, xform->eM22, xform->eDx, xform->eDy);
1189
1190 /* The transform must conform to (eM11 * eM22 != eM12 * eM21) requirement */
1191 if (xform->eM11 * xform->eM22 == xform->eM12 * xform->eM21) goto done;
1192
1193 if (dc->funcs->pSetWorldTransform)
1194 {
1195 ret = dc->funcs->pSetWorldTransform(dc->physDev, xform);
1196 if (!ret) goto done;
1197 }
1198
1199 dc->xformWorld2Wnd = *xform;
1200 DC_UpdateXforms( dc );
1201 ret = TRUE;
1202 done:
1203 release_dc_ptr( dc );
1204 return ret;
1205 }
1206
1207
1208 /****************************************************************************
1209 * ModifyWorldTransform [GDI32.@]
1210 * Modifies the world transformation for a device context.
1211 *
1212 * PARAMS
1213 * hdc [I] Handle to device context
1214 * xform [I] XFORM structure that will be used to modify the world
1215 * transformation
1216 * iMode [I] Specifies in what way to modify the world transformation
1217 * Possible values:
1218 * MWT_IDENTITY
1219 * Resets the world transformation to the identity matrix.
1220 * The parameter xform is ignored.
1221 * MWT_LEFTMULTIPLY
1222 * Multiplies xform into the world transformation matrix from
1223 * the left.
1224 * MWT_RIGHTMULTIPLY
1225 * Multiplies xform into the world transformation matrix from
1226 * the right.
1227 *
1228 * RETURNS
1229 * Success: TRUE.
1230 * Failure: FALSE. Use GetLastError() to determine the cause.
1231 */
1232 BOOL WINAPI ModifyWorldTransform( HDC hdc, const XFORM *xform,
1233 DWORD iMode )
1234 {
1235 BOOL ret = FALSE;
1236 DC *dc = get_dc_ptr( hdc );
1237
1238 /* Check for illegal parameters */
1239 if (!dc) return FALSE;
1240 if (!xform && iMode != MWT_IDENTITY) goto done;
1241
1242 /* Check that graphics mode is GM_ADVANCED */
1243 if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1244
1245 if (dc->funcs->pModifyWorldTransform)
1246 {
1247 ret = dc->funcs->pModifyWorldTransform(dc->physDev, xform, iMode);
1248 if (!ret) goto done;
1249 }
1250
1251 switch (iMode)
1252 {
1253 case MWT_IDENTITY:
1254 dc->xformWorld2Wnd.eM11 = 1.0f;
1255 dc->xformWorld2Wnd.eM12 = 0.0f;
1256 dc->xformWorld2Wnd.eM21 = 0.0f;
1257 dc->xformWorld2Wnd.eM22 = 1.0f;
1258 dc->xformWorld2Wnd.eDx = 0.0f;
1259 dc->xformWorld2Wnd.eDy = 0.0f;
1260 break;
1261 case MWT_LEFTMULTIPLY:
1262 CombineTransform( &dc->xformWorld2Wnd, xform,
1263 &dc->xformWorld2Wnd );
1264 break;
1265 case MWT_RIGHTMULTIPLY:
1266 CombineTransform( &dc->xformWorld2Wnd, &dc->xformWorld2Wnd,
1267 xform );
1268 break;
1269 default:
1270 goto done;
1271 }
1272
1273 DC_UpdateXforms( dc );
1274 ret = TRUE;
1275 done:
1276 release_dc_ptr( dc );
1277 return ret;
1278 }
1279
1280
1281 /****************************************************************************
1282 * CombineTransform [GDI32.@]
1283 * Combines two transformation matrices.
1284 *
1285 * PARAMS
1286 * xformResult [O] Stores the result of combining the two matrices
1287 * xform1 [I] Specifies the first matrix to apply
1288 * xform2 [I] Specifies the second matrix to apply
1289 *
1290 * REMARKS
1291 * The same matrix can be passed in for more than one of the parameters.
1292 *
1293 * RETURNS
1294 * Success: TRUE.
1295 * Failure: FALSE. Use GetLastError() to determine the cause.
1296 */
1297 BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1298 const XFORM *xform2 )
1299 {
1300 XFORM xformTemp;
1301
1302 /* Check for illegal parameters */
1303 if (!xformResult || !xform1 || !xform2)
1304 return FALSE;
1305
1306 /* Create the result in a temporary XFORM, since xformResult may be
1307 * equal to xform1 or xform2 */
1308 xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1309 xform1->eM12 * xform2->eM21;
1310 xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1311 xform1->eM12 * xform2->eM22;
1312 xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1313 xform1->eM22 * xform2->eM21;
1314 xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1315 xform1->eM22 * xform2->eM22;
1316 xformTemp.eDx = xform1->eDx * xform2->eM11 +
1317 xform1->eDy * xform2->eM21 +
1318 xform2->eDx;
1319 xformTemp.eDy = xform1->eDx * xform2->eM12 +
1320 xform1->eDy * xform2->eM22 +
1321 xform2->eDy;
1322
1323 /* Copy the result to xformResult */
1324 *xformResult = xformTemp;
1325
1326 return TRUE;
1327 }
1328
1329
1330 /***********************************************************************
1331 * SetDCHook (GDI32.@)
1332 *
1333 * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1334 */
1335 BOOL WINAPI SetDCHook( HDC hdc, DCHOOKPROC hookProc, DWORD_PTR dwHookData )
1336 {
1337 DC *dc = get_dc_ptr( hdc );
1338
1339 if (!dc) return FALSE;
1340
1341 if (!(dc->flags & DC_SAVED))
1342 {
1343 dc->dwHookData = dwHookData;
1344 dc->hookThunk = hookProc;
1345 }
1346 release_dc_ptr( dc );
1347 return TRUE;
1348 }
1349
1350
1351 /***********************************************************************
1352 * GetDCHook (GDI32.@)
1353 *
1354 * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1355 */
1356 DWORD_PTR WINAPI GetDCHook( HDC hdc, DCHOOKPROC *proc )
1357 {
1358 DC *dc = get_dc_ptr( hdc );
1359 DWORD_PTR ret;
1360
1361 if (!dc) return 0;
1362 if (proc) *proc = dc->hookThunk;
1363 ret = dc->dwHookData;
1364 release_dc_ptr( dc );
1365 return ret;
1366 }
1367
1368
1369 /* relay function to call the 16-bit DC hook proc */
1370 static BOOL WINAPI call_dc_hook16( HDC hdc, WORD code, DWORD_PTR data, LPARAM lParam )
1371 {
1372 WORD args[6];
1373 DWORD ret = 0;
1374 DC *dc = get_dc_ptr( hdc );
1375
1376 if (!dc) return FALSE;
1377 if (dc->hookProc)
1378 {
1379 args[5] = HDC_16(hdc);
1380 args[4] = code;
1381 args[3] = HIWORD(data);
1382 args[2] = LOWORD(data);
1383 args[1] = HIWORD(lParam);
1384 args[0] = LOWORD(lParam);
1385 WOWCallback16Ex( (DWORD)dc->hookProc, WCB16_PASCAL, sizeof(args), args, &ret );
1386 }
1387 release_dc_ptr( dc );
1388 return LOWORD(ret);
1389 }
1390
1391 /***********************************************************************
1392 * SetDCHook (GDI.190)
1393 */
1394 BOOL16 WINAPI SetDCHook16( HDC16 hdc16, FARPROC16 hookProc, DWORD dwHookData )
1395 {
1396 DC *dc = get_dc_ptr( HDC_32(hdc16) );
1397
1398 if (!dc) return FALSE;
1399 if (!(dc->flags & DC_SAVED))
1400 {
1401 dc->dwHookData = dwHookData;
1402 dc->hookThunk = call_dc_hook16;
1403 dc->hookProc = hookProc;
1404 }
1405 release_dc_ptr( dc );
1406 return TRUE;
1407 }
1408
1409
1410 /***********************************************************************
1411 * GetDCHook (GDI.191)
1412 */
1413 DWORD WINAPI GetDCHook16( HDC16 hdc16, FARPROC16 *phookProc )
1414 {
1415 HDC hdc = HDC_32( hdc16 );
1416 DC *dc = get_dc_ptr( hdc );
1417 DWORD ret;
1418
1419 if (!dc) return 0;
1420 *phookProc = dc->hookProc;
1421 ret = dc->dwHookData;
1422 release_dc_ptr( dc );
1423 return ret;
1424 }
1425
1426
1427 /***********************************************************************
1428 * SetHookFlags (GDI32.@)
1429 *
1430 * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1431 */
1432 WORD WINAPI SetHookFlags( HDC hdc, WORD flags )
1433 {
1434 DC *dc = get_dc_obj( hdc ); /* not get_dc_ptr, this needs to work from any thread */
1435 LONG ret = 0;
1436
1437 if (!dc) return 0;
1438
1439 /* "Undocumented Windows" info is slightly confusing. */
1440
1441 TRACE("hDC %p, flags %04x\n",hdc,flags);
1442
1443 if (flags & DCHF_INVALIDATEVISRGN)
1444 ret = InterlockedExchange( &dc->dirty, 1 );
1445 else if (flags & DCHF_VALIDATEVISRGN || !flags)
1446 ret = InterlockedExchange( &dc->dirty, 0 );
1447
1448 GDI_ReleaseObj( dc );
1449 return ret;
1450 }
1451
1452 /***********************************************************************
1453 * SetICMMode (GDI32.@)
1454 */
1455 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1456 {
1457 /*FIXME: Assume that ICM is always off, and cannot be turned on */
1458 if (iEnableICM == ICM_OFF) return ICM_OFF;
1459 if (iEnableICM == ICM_ON) return 0;
1460 if (iEnableICM == ICM_QUERY) return ICM_OFF;
1461 return 0;
1462 }
1463
1464 /***********************************************************************
1465 * GetDeviceGammaRamp (GDI32.@)
1466 */
1467 BOOL WINAPI GetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1468 {
1469 BOOL ret = FALSE;
1470 DC *dc = get_dc_ptr( hDC );
1471
1472 if( dc )
1473 {
1474 if (dc->funcs->pGetDeviceGammaRamp)
1475 ret = dc->funcs->pGetDeviceGammaRamp(dc->physDev, ptr);
1476 release_dc_ptr( dc );
1477 }
1478 return ret;
1479 }
1480
1481 /***********************************************************************
1482 * SetDeviceGammaRamp (GDI32.@)
1483 */
1484 BOOL WINAPI SetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1485 {
1486 BOOL ret = FALSE;
1487 DC *dc = get_dc_ptr( hDC );
1488
1489 if( dc )
1490 {
1491 if (dc->funcs->pSetDeviceGammaRamp)
1492 ret = dc->funcs->pSetDeviceGammaRamp(dc->physDev, ptr);
1493 release_dc_ptr( dc );
1494 }
1495 return ret;
1496 }
1497
1498 /***********************************************************************
1499 * GetColorSpace (GDI32.@)
1500 */
1501 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1502 {
1503 /*FIXME Need to to whatever GetColorSpace actually does */
1504 return 0;
1505 }
1506
1507 /***********************************************************************
1508 * CreateColorSpaceA (GDI32.@)
1509 */
1510 HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
1511 {
1512 FIXME( "stub\n" );
1513 return 0;
1514 }
1515
1516 /***********************************************************************
1517 * CreateColorSpaceW (GDI32.@)
1518 */
1519 HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
1520 {
1521 FIXME( "stub\n" );
1522 return 0;
1523 }
1524
1525 /***********************************************************************
1526 * DeleteColorSpace (GDI32.@)
1527 */
1528 BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
1529 {
1530 FIXME( "stub\n" );
1531
1532 return TRUE;
1533 }
1534
1535 /***********************************************************************
1536 * SetColorSpace (GDI32.@)
1537 */
1538 HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
1539 {
1540 FIXME( "stub\n" );
1541
1542 return hColorSpace;
1543 }
1544
1545 /***********************************************************************
1546 * GetBoundsRect (GDI32.@)
1547 */
1548 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1549 {
1550 UINT ret;
1551 DC *dc = get_dc_ptr( hdc );
1552
1553 if ( !dc ) return 0;
1554
1555 if (rect) *rect = dc->BoundsRect;
1556
1557 ret = ((dc->flags & DC_BOUNDS_SET) ? DCB_SET : DCB_RESET);
1558
1559 if (flags & DCB_RESET)
1560 {
1561 dc->BoundsRect.left = 0;
1562 dc->BoundsRect.top = 0;
1563 dc->BoundsRect.right = 0;
1564 dc->BoundsRect.bottom = 0;
1565 dc->flags &= ~DC_BOUNDS_SET;
1566 }
1567 release_dc_ptr( dc );
1568 return ret;
1569 }
1570
1571
1572 /***********************************************************************
1573 * SetBoundsRect (GDI32.@)
1574 */
1575 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1576 {
1577 UINT ret;
1578 DC *dc;
1579
1580 if ((flags & DCB_ENABLE) && (flags & DCB_DISABLE)) return 0;
1581 if (!(dc = get_dc_ptr( hdc ))) return 0;
1582
1583 ret = ((dc->flags & DC_BOUNDS_ENABLE) ? DCB_ENABLE : DCB_DISABLE) |
1584 ((dc->flags & DC_BOUNDS_SET) ? DCB_SET : DCB_RESET);
1585
1586 if (flags & DCB_RESET)
1587 {
1588 dc->BoundsRect.left = 0;
1589 dc->BoundsRect.top = 0;
1590 dc->BoundsRect.right = 0;
1591 dc->BoundsRect.bottom = 0;
1592 dc->flags &= ~DC_BOUNDS_SET;
1593 }
1594
1595 if ((flags & DCB_ACCUMULATE) && rect && rect->left < rect->right && rect->top < rect->bottom)
1596 {
1597 if (dc->flags & DC_BOUNDS_SET)
1598 {
1599 dc->BoundsRect.left = min( dc->BoundsRect.left, rect->left );
1600 dc->BoundsRect.top = min( dc->BoundsRect.top, rect->top );
1601 dc->BoundsRect.right = max( dc->BoundsRect.right, rect->right );
1602 dc->BoundsRect.bottom = max( dc->BoundsRect.bottom, rect->bottom );
1603 }
1604 else
1605 {
1606 dc->BoundsRect = *rect;
1607 dc->flags |= DC_BOUNDS_SET;
1608 }
1609 }
1610
1611 if (flags & DCB_ENABLE) dc->flags |= DC_BOUNDS_ENABLE;
1612 if (flags & DCB_DISABLE) dc->flags &= ~DC_BOUNDS_ENABLE;
1613
1614 release_dc_ptr( dc );
1615 return ret;
1616 }
1617
1618
1619 /***********************************************************************
1620 * GetRelAbs (GDI32.@)
1621 */
1622 INT WINAPI GetRelAbs( HDC hdc, DWORD dwIgnore )
1623 {
1624 INT ret = 0;
1625 DC *dc = get_dc_ptr( hdc );
1626 if (dc)
1627 {
1628 ret = dc->relAbsMode;
1629 release_dc_ptr( dc );
1630 }
1631 return ret;
1632 }
1633
1634
1635
1636
1637 /***********************************************************************
1638 * GetBkMode (GDI32.@)
1639 */
1640 INT WINAPI GetBkMode( HDC hdc )
1641 {
1642 INT ret = 0;
1643 DC * dc = get_dc_ptr( hdc );
1644 if (dc)
1645 {
1646 ret = dc->backgroundMode;
1647 release_dc_ptr( dc );
1648 }
1649 return ret;
1650 }
1651
1652
1653 /***********************************************************************
1654 * SetBkMode (GDI32.@)
1655 */
1656 INT WINAPI SetBkMode( HDC hdc, INT mode )
1657 {
1658 INT ret;
1659 DC *dc;
1660 if ((mode <= 0) || (mode > BKMODE_LAST))
1661 {
1662 SetLastError(ERROR_INVALID_PARAMETER);
1663 return 0;
1664 }
1665 if (!(dc = get_dc_ptr( hdc ))) return 0;
1666
1667 ret = dc->backgroundMode;
1668 if (dc->funcs->pSetBkMode)
1669 if (!dc->funcs->pSetBkMode( dc->physDev, mode ))
1670 ret = 0;
1671 if (ret)
1672 dc->backgroundMode = mode;
1673 release_dc_ptr( dc );
1674 return ret;
1675 }
1676
1677
1678 /***********************************************************************
1679 * GetROP2 (GDI32.@)
1680 */
1681 INT WINAPI GetROP2( HDC hdc )
1682 {
1683 INT ret = 0;
1684 DC * dc = get_dc_ptr( hdc );
1685 if (dc)
1686 {
1687 ret = dc->ROPmode;
1688 release_dc_ptr( dc );
1689 }
1690 return ret;
1691 }
1692
1693
1694 /***********************************************************************
1695 * SetROP2 (GDI32.@)
1696 */
1697 INT WINAPI SetROP2( HDC hdc, INT mode )
1698 {
1699 INT ret;
1700 DC *dc;
1701 if ((mode < R2_BLACK) || (mode > R2_WHITE))
1702 {
1703 SetLastError(ERROR_INVALID_PARAMETER);
1704 return 0;
1705 }
1706 if (!(dc = get_dc_ptr( hdc ))) return 0;
1707 ret = dc->ROPmode;
1708 if (dc->funcs->pSetROP2)
1709 if (!dc->funcs->pSetROP2( dc->physDev, mode ))
1710 ret = 0;
1711 if (ret)
1712 dc->ROPmode = mode;
1713 release_dc_ptr( dc );
1714 return ret;
1715 }
1716
1717
1718 /***********************************************************************
1719 * SetRelAbs (GDI32.@)
1720 */
1721 INT WINAPI SetRelAbs( HDC hdc, INT mode )
1722 {
1723 INT ret;
1724 DC *dc;
1725 if ((mode != ABSOLUTE) && (mode != RELATIVE))
1726 {
1727 SetLastError(ERROR_INVALID_PARAMETER);
1728 return 0;
1729 }
1730 if (!(dc = get_dc_ptr( hdc ))) return 0;
1731 if (dc->funcs->pSetRelAbs)
1732 ret = dc->funcs->pSetRelAbs( dc->physDev, mode );
1733 else
1734 {
1735 ret = dc->relAbsMode;
1736 dc->relAbsMode = mode;
1737 }
1738 release_dc_ptr( dc );
1739 return ret;
1740 }
1741
1742
1743 /***********************************************************************
1744 * GetPolyFillMode (GDI32.@)
1745 */
1746 INT WINAPI GetPolyFillMode( HDC hdc )
1747 {
1748 INT ret = 0;
1749 DC * dc = get_dc_ptr( hdc );
1750 if (dc)
1751 {
1752 ret = dc->polyFillMode;
1753 release_dc_ptr( dc );
1754 }
1755 return ret;
1756 }
1757
1758
1759 /***********************************************************************
1760 * SetPolyFillMode (GDI32.@)
1761 */
1762 INT WINAPI SetPolyFillMode( HDC hdc, INT mode )
1763 {
1764 INT ret;
1765 DC *dc;
1766 if ((mode <= 0) || (mode > POLYFILL_LAST))
1767 {
1768 SetLastError(ERROR_INVALID_PARAMETER);
1769 return 0;
1770 }
1771 if (!(dc = get_dc_ptr( hdc ))) return 0;
1772 ret = dc->polyFillMode;
1773 if (dc->funcs->pSetPolyFillMode)
1774 if (!dc->funcs->pSetPolyFillMode( dc->physDev, mode ))
1775 ret = 0;
1776 if (ret)
1777 dc->polyFillMode = mode;
1778 release_dc_ptr( dc );
1779 return ret;
1780 }
1781
1782
1783 /***********************************************************************
1784 * GetStretchBltMode (GDI32.@)
1785 */
1786 INT WINAPI GetStretchBltMode( HDC hdc )
1787 {
1788 INT ret = 0;
1789 DC * dc = get_dc_ptr( hdc );
1790 if (dc)
1791 {
1792 ret = dc->stretchBltMode;
1793 release_dc_ptr( dc );
1794 }
1795 return ret;
1796 }
1797
1798
1799 /***********************************************************************
1800 * SetStretchBltMode (GDI32.@)
1801 */
1802 INT WINAPI SetStretchBltMode( HDC hdc, INT mode )
1803 {
1804 INT ret;
1805 DC *dc;
1806 if ((mode <= 0) || (mode > MAXSTRETCHBLTMODE))
1807 {
1808 SetLastError(ERROR_INVALID_PARAMETER);
1809 return 0;
1810 }
1811 if (!(dc = get_dc_ptr( hdc ))) return 0;
1812 ret = dc->stretchBltMode;
1813 if (dc->funcs->pSetStretchBltMode)
1814 if (!dc->funcs->pSetStretchBltMode( dc->physDev, mode ))
1815 ret = 0;
1816 if (ret)
1817 dc->stretchBltMode = mode;
1818 release_dc_ptr( dc );
1819 return ret;
1820 }
1821
1822
1823 /***********************************************************************
1824 * GetMapMode (GDI32.@)
1825 */
1826 INT WINAPI GetMapMode( HDC hdc )
1827 {
1828 INT ret = 0;
1829 DC * dc = get_dc_ptr( hdc );
1830 if (dc)
1831 {
1832 ret = dc->MapMode;
1833 release_dc_ptr( dc );
1834 }
1835 return ret;
1836 }
1837
1838
1839 /***********************************************************************
1840 * GetBrushOrgEx (GDI32.@)
1841 */
1842 BOOL WINAPI GetBrushOrgEx( HDC hdc, LPPOINT pt )
1843 {
1844 DC * dc = get_dc_ptr( hdc );
1845 if (!dc) return FALSE;
1846 pt->x = dc->brushOrgX;
1847 pt->y = dc->brushOrgY;
1848 release_dc_ptr( dc );
1849 return TRUE;
1850 }
1851
1852
1853 /***********************************************************************
1854 * GetCurrentPositionEx (GDI32.@)
1855 */
1856 BOOL WINAPI GetCurrentPositionEx( HDC hdc, LPPOINT pt )
1857 {
1858 DC * dc = get_dc_ptr( hdc );
1859 if (!dc) return FALSE;
1860 pt->x = dc->CursPosX;
1861 pt->y = dc->CursPosY;
1862 release_dc_ptr( dc );
1863 return TRUE;
1864 }
1865
1866
1867 /***********************************************************************
1868 * GetViewportExtEx (GDI32.@)
1869 */
1870 BOOL WINAPI GetViewportExtEx( HDC hdc, LPSIZE size )
1871 {
1872 DC * dc = get_dc_ptr( hdc );
1873 if (!dc) return FALSE;
1874 size->cx = dc->vportExtX;
1875 size->cy = dc->vportExtY;
1876 release_dc_ptr( dc );
1877 return TRUE;
1878 }
1879
1880
1881 /***********************************************************************
1882 * GetViewportOrgEx (GDI32.@)
1883 */
1884 BOOL WINAPI GetViewportOrgEx( HDC hdc, LPPOINT pt )
1885 {
1886 DC * dc = get_dc_ptr( hdc );
1887 if (!dc) return FALSE;
1888 pt->x = dc->vportOrgX;
1889 pt->y = dc->vportOrgY;
1890 release_dc_ptr( dc );
1891 return TRUE;
1892 }
1893
1894
1895 /***********************************************************************
1896 * GetWindowExtEx (GDI32.@)
1897 */
1898 BOOL WINAPI GetWindowExtEx( HDC hdc, LPSIZE size )
1899 {
1900 DC * dc = get_dc_ptr( hdc );
1901 if (!dc) return FALSE;
1902 size->cx = dc->wndExtX;
1903 size->cy = dc->wndExtY;
1904 release_dc_ptr( dc );
1905 return TRUE;
1906 }
1907
1908
1909 /***********************************************************************
1910 * GetWindowOrgEx (GDI32.@)
1911 */
1912 BOOL WINAPI GetWindowOrgEx( HDC hdc, LPPOINT pt )
1913 {
1914 DC * dc = get_dc_ptr( hdc );
1915 if (!dc) return FALSE;
1916 pt->x = dc->wndOrgX;
1917 pt->y = dc->wndOrgY;
1918 release_dc_ptr( dc );
1919 return TRUE;
1920 }
1921
1922
1923 /***********************************************************************
1924 * GetLayout (GDI32.@)
1925 *
1926 * Gets left->right or right->left text layout flags of a dc.
1927 *
1928 */
1929 DWORD WINAPI GetLayout(HDC hdc)
1930 {
1931 DWORD layout = GDI_ERROR;
1932
1933 DC * dc = get_dc_ptr( hdc );
1934 if (dc)
1935 {
1936 layout = dc->layout;
1937 release_dc_ptr( dc );
1938 }
1939
1940 TRACE("hdc : %p, layout : %08x\n", hdc, layout);
1941
1942 return layout;
1943 }
1944
1945 /***********************************************************************
1946 * SetLayout (GDI32.@)
1947 *
1948 * Sets left->right or right->left text layout flags of a dc.
1949 *
1950 */
1951 DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
1952 {
1953 DWORD oldlayout = GDI_ERROR;
1954
1955 DC * dc = get_dc_ptr( hdc );
1956 if (dc)
1957 {
1958 oldlayout = dc->layout;
1959 dc->layout = layout;
1960 release_dc_ptr( dc );
1961 }
1962
1963 TRACE("hdc : %p, old layout : %08x, new layout : %08x\n", hdc, oldlayout, layout);
1964
1965 return oldlayout;
1966 }
1967
1968 /***********************************************************************
1969 * GetDCBrushColor (GDI32.@)
1970 *
1971 * Retrieves the current brush color for the specified device
1972 * context (DC).
1973 *
1974 */
1975 COLORREF WINAPI GetDCBrushColor(HDC hdc)
1976 {
1977 DC *dc;
1978 COLORREF dcBrushColor = CLR_INVALID;
1979
1980 TRACE("hdc(%p)\n", hdc);
1981
1982 dc = get_dc_ptr( hdc );
1983 if (dc)
1984 {
1985 dcBrushColor = dc->dcBrushColor;
1986 release_dc_ptr( dc );
1987 }
1988
1989 return dcBrushColor;
1990 }
1991
1992 /***********************************************************************
1993 * SetDCBrushColor (GDI32.@)
1994 *
1995 * Sets the current device context (DC) brush color to the specified
1996 * color value. If the device cannot represent the specified color
1997 * value, the color is set to the nearest physical color.
1998 *
1999 */
2000 COLORREF WINAPI SetDCBrushColor(HDC hdc, COLORREF crColor)
2001 {
2002 DC *dc;
2003 COLORREF oldClr = CLR_INVALID;
2004
2005 TRACE("hdc(%p) crColor(%08x)\n", hdc, crColor);
2006
2007 dc = get_dc_ptr( hdc );
2008 if (dc)
2009 {
2010 if (dc->funcs->pSetDCBrushColor)
2011 crColor = dc->funcs->pSetDCBrushColor( dc->physDev, crColor );
2012 else if (dc->hBrush == GetStockObject( DC_BRUSH ))
2013 {
2014 /* If DC_BRUSH is selected, update driver pen color */
2015 HBRUSH hBrush = CreateSolidBrush( crColor );
2016 dc->funcs->pSelectBrush( dc->physDev, hBrush );
2017 DeleteObject( hBrush );
2018 }
2019
2020 if (crColor != CLR_INVALID)
2021 {
2022 oldClr = dc->dcBrushColor;
2023 dc->dcBrushColor = crColor;
2024 }
2025
2026 release_dc_ptr( dc );
2027 }
2028
2029 return oldClr;
2030 }
2031
2032 /***********************************************************************
2033 * GetDCPenColor (GDI32.@)
2034 *
2035 * Retrieves the current pen color for the specified device
2036 * context (DC).
2037 *
2038 */
2039 COLORREF WINAPI GetDCPenColor(HDC hdc)
2040 {
2041 DC *dc;
2042 COLORREF dcPenColor = CLR_INVALID;
2043
2044 TRACE("hdc(%p)\n", hdc);
2045
2046 dc = get_dc_ptr( hdc );
2047 if (dc)
2048 {
2049 dcPenColor = dc->dcPenColor;
2050 release_dc_ptr( dc );
2051 }
2052
2053 return dcPenColor;
2054 }
2055
2056 /***********************************************************************
2057 * SetDCPenColor (GDI32.@)
2058 *
2059 * Sets the current device context (DC) pen color to the specified
2060 * color value. If the device cannot represent the specified color
2061 * value, the color is set to the nearest physical color.
2062 *
2063 */
2064 COLORREF WINAPI SetDCPenColor(HDC hdc, COLORREF crColor)
2065 {
2066 DC *dc;
2067 COLORREF oldClr = CLR_INVALID;
2068
2069 TRACE("hdc(%p) crColor(%08x)\n", hdc, crColor);
2070
2071 dc = get_dc_ptr( hdc );
2072 if (dc)
2073 {
2074 if (dc->funcs->pSetDCPenColor)
2075 crColor = dc->funcs->pSetDCPenColor( dc->physDev, crColor );
2076 else if (dc->hPen == GetStockObject( DC_PEN ))
2077 {
2078 /* If DC_PEN is selected, update the driver pen color */
2079 LOGPEN logpen = { PS_SOLID, { 0, 0 }, crColor };
2080 HPEN hPen = CreatePenIndirect( &logpen );
2081 dc->funcs->pSelectPen( dc->physDev, hPen );
2082 DeleteObject( hPen );
2083 }
2084
2085 if (crColor != CLR_INVALID)
2086 {
2087 oldClr = dc->dcPenColor;
2088 dc->dcPenColor = crColor;
2089 }
2090
2091 release_dc_ptr( dc );
2092 }
2093
2094 return oldClr;
2095 }
2096
2097 /***********************************************************************
2098 * CancelDC (GDI32.@)
2099 */
2100 BOOL WINAPI CancelDC(HDC hdc)
2101 {
2102 FIXME("stub\n");
2103 return TRUE;
2104 }
2105
2106 /***********************************************************************
2107 * SetVirtualResolution (GDI32.@)
2108 *
2109 * Undocumented on msdn. Called when PowerPoint XP saves a file.
2110 */
2111 DWORD WINAPI SetVirtualResolution(HDC hdc, DWORD dw2, DWORD dw3, DWORD dw4, DWORD dw5)
2112 {
2113 FIXME("(%p %08x %08x %08x %08x): stub!\n", hdc, dw2, dw3, dw4, dw5);
2114 return FALSE;
2115 }
2116
2117 /*******************************************************************
2118 * GetMiterLimit [GDI32.@]
2119 *
2120 *
2121 */
2122 BOOL WINAPI GetMiterLimit(HDC hdc, PFLOAT peLimit)
2123 {
2124 BOOL bRet = FALSE;
2125 DC *dc;
2126
2127 TRACE("(%p,%p)\n", hdc, peLimit);
2128
2129 dc = get_dc_ptr( hdc );
2130 if (dc)
2131 {
2132 if (peLimit)
2133 *peLimit = dc->miterLimit;
2134
2135 release_dc_ptr( dc );
2136 bRet = TRUE;
2137 }
2138 return bRet;
2139 }
2140
2141 /*******************************************************************
2142 * SetMiterLimit [GDI32.@]
2143 *
2144 *
2145 */
2146 BOOL WINAPI SetMiterLimit(HDC hdc, FLOAT eNewLimit, PFLOAT peOldLimit)
2147 {
2148 BOOL bRet = FALSE;
2149 DC *dc;
2150
2151 TRACE("(%p,%f,%p)\n", hdc, eNewLimit, peOldLimit);
2152
2153 dc = get_dc_ptr( hdc );
2154 if (dc)
2155 {
2156 if (peOldLimit)
2157 *peOldLimit = dc->miterLimit;
2158 dc->miterLimit = eNewLimit;
2159 release_dc_ptr( dc );
2160 bRet = TRUE;
2161 }
2162 return bRet;
2163 }
2164
2165 /*******************************************************************
2166 * GdiIsMetaPrintDC [GDI32.@]
2167 */
2168 BOOL WINAPI GdiIsMetaPrintDC(HDC hdc)
2169 {
2170 FIXME("%p\n", hdc);
2171 return FALSE;
2172 }
2173
2174 /*******************************************************************
2175 * GdiIsMetaFileDC [GDI32.@]
2176 */
2177 BOOL WINAPI GdiIsMetaFileDC(HDC hdc)
2178 {
2179 TRACE("%p\n", hdc);
2180
2181 switch( GetObjectType( hdc ) )
2182 {
2183 case OBJ_METADC:
2184 case OBJ_ENHMETADC:
2185 return TRUE;
2186 }
2187 return FALSE;
2188 }
2189
2190 /*******************************************************************
2191 * GdiIsPlayMetafileDC [GDI32.@]
2192 */
2193 BOOL WINAPI GdiIsPlayMetafileDC(HDC hdc)
2194 {
2195 FIXME("%p\n", hdc);
2196 return FALSE;
2197 }
2198
This page was automatically generated by the
LXR engine.
Visit the LXR main site for more
information.