2 * GDI Device Context functions
4 * Copyright 1993 Alexandre Julliard
15 #include "debugtools.h"
21 #include "wine/winuser16.h"
23 DEFAULT_DEBUG_CHANNEL(dc);
25 /***********************************************************************
28 * Fill the WIN_DC_INFO structure.
30 static void DC_Init_DC_INFO( WIN_DC_INFO *win_dc_info )
32 win_dc_info->flags = 0;
33 win_dc_info->devCaps = NULL;
34 win_dc_info->hClipRgn = 0;
35 win_dc_info->hVisRgn = 0;
36 win_dc_info->hGCClipRgn = 0;
37 win_dc_info->hPen = STOCK_BLACK_PEN;
38 win_dc_info->hBrush = STOCK_WHITE_BRUSH;
39 win_dc_info->hFont = STOCK_SYSTEM_FONT;
40 win_dc_info->hBitmap = 0;
41 win_dc_info->hDevice = 0;
42 win_dc_info->hPalette = STOCK_DEFAULT_PALETTE;
43 win_dc_info->ROPmode = R2_COPYPEN;
44 win_dc_info->polyFillMode = ALTERNATE;
45 win_dc_info->stretchBltMode = BLACKONWHITE;
46 win_dc_info->relAbsMode = ABSOLUTE;
47 win_dc_info->backgroundMode = OPAQUE;
48 win_dc_info->backgroundColor = RGB( 255, 255, 255 );
49 win_dc_info->textColor = RGB( 0, 0, 0 );
50 win_dc_info->brushOrgX = 0;
51 win_dc_info->brushOrgY = 0;
52 win_dc_info->textAlign = TA_LEFT | TA_TOP | TA_NOUPDATECP;
53 win_dc_info->charExtra = 0;
54 win_dc_info->breakTotalExtra = 0;
55 win_dc_info->breakCount = 0;
56 win_dc_info->breakExtra = 0;
57 win_dc_info->breakRem = 0;
58 win_dc_info->bitsPerPixel = 1;
59 win_dc_info->MapMode = MM_TEXT;
60 win_dc_info->GraphicsMode = GM_COMPATIBLE;
61 win_dc_info->DCOrgX = 0;
62 win_dc_info->DCOrgY = 0;
63 win_dc_info->pAbortProc = NULL;
64 win_dc_info->CursPosX = 0;
65 win_dc_info->CursPosY = 0;
66 win_dc_info->ArcDirection = AD_COUNTERCLOCKWISE;
67 win_dc_info->xformWorld2Wnd.eM11 = 1.0f;
68 win_dc_info->xformWorld2Wnd.eM12 = 0.0f;
69 win_dc_info->xformWorld2Wnd.eM21 = 0.0f;
70 win_dc_info->xformWorld2Wnd.eM22 = 1.0f;
71 win_dc_info->xformWorld2Wnd.eDx = 0.0f;
72 win_dc_info->xformWorld2Wnd.eDy = 0.0f;
73 win_dc_info->xformWorld2Vport = win_dc_info->xformWorld2Wnd;
74 win_dc_info->xformVport2World = win_dc_info->xformWorld2Wnd;
75 win_dc_info->vport2WorldValid = TRUE;
77 PATH_InitGdiPath(&win_dc_info->path);
81 /***********************************************************************
84 DC *DC_AllocDC( const DC_FUNCTIONS *funcs )
89 if (!(hdc = GDI_AllocObject( sizeof(DC), DC_MAGIC ))) return NULL;
90 dc = (DC *) GDI_HEAP_LOCK( hdc );
108 DC_Init_DC_INFO( &dc->w );
115 /***********************************************************************
118 DC *DC_GetDCPtr( HDC hdc )
120 GDIOBJHDR *ptr = (GDIOBJHDR *)GDI_HEAP_LOCK( hdc );
121 if (!ptr) return NULL;
122 if ((ptr->wMagic == DC_MAGIC) || (ptr->wMagic == METAFILE_DC_MAGIC) ||
123 (ptr->wMagic == ENHMETAFILE_DC_MAGIC))
125 GDI_HEAP_UNLOCK( hdc );
126 SetLastError( ERROR_INVALID_HANDLE );
131 /***********************************************************************
134 * Setup device-specific DC values for a newly created DC.
136 void DC_InitDC( DC* dc )
138 RealizeDefaultPalette16( dc->hSelf );
139 SetTextColor( dc->hSelf, dc->w.textColor );
140 SetBkColor( dc->hSelf, dc->w.backgroundColor );
141 SelectObject( dc->hSelf, dc->w.hPen );
142 SelectObject( dc->hSelf, dc->w.hBrush );
143 SelectObject( dc->hSelf, dc->w.hFont );
144 CLIPPING_UpdateGCRegion( dc );
148 /***********************************************************************
151 * Computes the inverse of the transformation xformSrc and stores it to
152 * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
155 static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
159 determinant = xformSrc->eM11*xformSrc->eM22 -
160 xformSrc->eM12*xformSrc->eM21;
161 if (determinant > -1e-12 && determinant < 1e-12)
164 xformDest->eM11 = xformSrc->eM22 / determinant;
165 xformDest->eM12 = -xformSrc->eM12 / determinant;
166 xformDest->eM21 = -xformSrc->eM21 / determinant;
167 xformDest->eM22 = xformSrc->eM11 / determinant;
168 xformDest->eDx = -xformSrc->eDx * xformDest->eM11 -
169 xformSrc->eDy * xformDest->eM21;
170 xformDest->eDy = -xformSrc->eDx * xformDest->eM12 -
171 xformSrc->eDy * xformDest->eM22;
177 /***********************************************************************
180 * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
181 * fields of the specified DC by creating a transformation that
182 * represents the current mapping mode and combining it with the DC's
183 * world transform. This function should be called whenever the
184 * parameters associated with the mapping mode (window and viewport
185 * extents and origins) or the world transform change.
187 void DC_UpdateXforms( DC *dc )
189 XFORM xformWnd2Vport;
190 FLOAT scaleX, scaleY;
192 /* Construct a transformation to do the window-to-viewport conversion */
193 scaleX = (FLOAT)dc->vportExtX / (FLOAT)dc->wndExtX;
194 scaleY = (FLOAT)dc->vportExtY / (FLOAT)dc->wndExtY;
195 xformWnd2Vport.eM11 = scaleX;
196 xformWnd2Vport.eM12 = 0.0;
197 xformWnd2Vport.eM21 = 0.0;
198 xformWnd2Vport.eM22 = scaleY;
199 xformWnd2Vport.eDx = (FLOAT)dc->vportOrgX -
200 scaleX * (FLOAT)dc->wndOrgX;
201 xformWnd2Vport.eDy = (FLOAT)dc->vportOrgY -
202 scaleY * (FLOAT)dc->wndOrgY;
204 /* Combine with the world transformation */
205 CombineTransform( &dc->w.xformWorld2Vport, &dc->w.xformWorld2Wnd,
208 /* Create inverse of world-to-viewport transformation */
209 dc->w.vport2WorldValid = DC_InvertXform( &dc->w.xformWorld2Vport,
210 &dc->w.xformVport2World );
214 /***********************************************************************
215 * GetDCState (GDI.179)
217 HDC16 WINAPI GetDCState16( HDC16 hdc )
222 if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return 0;
223 if (!(handle = GDI_AllocObject( sizeof(DC), DC_MAGIC )))
225 GDI_HEAP_UNLOCK( hdc );
228 newdc = (DC *) GDI_HEAP_LOCK( handle );
230 TRACE("(%04x): returning %04x\n", hdc, handle );
232 newdc->w.flags = dc->w.flags | DC_SAVED;
233 newdc->w.devCaps = dc->w.devCaps;
234 newdc->w.hPen = dc->w.hPen;
235 newdc->w.hBrush = dc->w.hBrush;
236 newdc->w.hFont = dc->w.hFont;
237 newdc->w.hBitmap = dc->w.hBitmap;
238 newdc->w.hDevice = dc->w.hDevice;
239 newdc->w.hPalette = dc->w.hPalette;
240 newdc->w.totalExtent = dc->w.totalExtent;
241 newdc->w.bitsPerPixel = dc->w.bitsPerPixel;
242 newdc->w.ROPmode = dc->w.ROPmode;
243 newdc->w.polyFillMode = dc->w.polyFillMode;
244 newdc->w.stretchBltMode = dc->w.stretchBltMode;
245 newdc->w.relAbsMode = dc->w.relAbsMode;
246 newdc->w.backgroundMode = dc->w.backgroundMode;
247 newdc->w.backgroundColor = dc->w.backgroundColor;
248 newdc->w.textColor = dc->w.textColor;
249 newdc->w.brushOrgX = dc->w.brushOrgX;
250 newdc->w.brushOrgY = dc->w.brushOrgY;
251 newdc->w.textAlign = dc->w.textAlign;
252 newdc->w.charExtra = dc->w.charExtra;
253 newdc->w.breakTotalExtra = dc->w.breakTotalExtra;
254 newdc->w.breakCount = dc->w.breakCount;
255 newdc->w.breakExtra = dc->w.breakExtra;
256 newdc->w.breakRem = dc->w.breakRem;
257 newdc->w.MapMode = dc->w.MapMode;
258 newdc->w.GraphicsMode = dc->w.GraphicsMode;
260 /* Apparently, the DC origin is not changed by [GS]etDCState */
261 newdc->w.DCOrgX = dc->w.DCOrgX;
262 newdc->w.DCOrgY = dc->w.DCOrgY;
264 newdc->w.CursPosX = dc->w.CursPosX;
265 newdc->w.CursPosY = dc->w.CursPosY;
266 newdc->w.ArcDirection = dc->w.ArcDirection;
267 newdc->w.xformWorld2Wnd = dc->w.xformWorld2Wnd;
268 newdc->w.xformWorld2Vport = dc->w.xformWorld2Vport;
269 newdc->w.xformVport2World = dc->w.xformVport2World;
270 newdc->w.vport2WorldValid = dc->w.vport2WorldValid;
271 newdc->wndOrgX = dc->wndOrgX;
272 newdc->wndOrgY = dc->wndOrgY;
273 newdc->wndExtX = dc->wndExtX;
274 newdc->wndExtY = dc->wndExtY;
275 newdc->vportOrgX = dc->vportOrgX;
276 newdc->vportOrgY = dc->vportOrgY;
277 newdc->vportExtX = dc->vportExtX;
278 newdc->vportExtY = dc->vportExtY;
280 newdc->hSelf = (HDC)handle;
281 newdc->saveLevel = 0;
283 PATH_InitGdiPath( &newdc->w.path );
285 newdc->w.pAbortProc = NULL;
287 /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
289 newdc->w.hGCClipRgn = newdc->w.hVisRgn = 0;
292 newdc->w.hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
293 CombineRgn( newdc->w.hClipRgn, dc->w.hClipRgn, 0, RGN_COPY );
296 newdc->w.hClipRgn = 0;
297 GDI_HEAP_UNLOCK( handle );
298 GDI_HEAP_UNLOCK( hdc );
303 /***********************************************************************
304 * SetDCState (GDI.180)
306 void WINAPI SetDCState16( HDC16 hdc, HDC16 hdcs )
310 if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return;
311 if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC )))
313 GDI_HEAP_UNLOCK( hdc );
316 if (!dcs->w.flags & DC_SAVED)
318 GDI_HEAP_UNLOCK( hdc );
319 GDI_HEAP_UNLOCK( hdcs );
322 TRACE("%04x %04x\n", hdc, hdcs );
324 dc->w.flags = dcs->w.flags & ~DC_SAVED;
325 dc->w.devCaps = dcs->w.devCaps;
326 dc->w.hDevice = dcs->w.hDevice;
327 dc->w.totalExtent = dcs->w.totalExtent;
328 dc->w.ROPmode = dcs->w.ROPmode;
329 dc->w.polyFillMode = dcs->w.polyFillMode;
330 dc->w.stretchBltMode = dcs->w.stretchBltMode;
331 dc->w.relAbsMode = dcs->w.relAbsMode;
332 dc->w.backgroundMode = dcs->w.backgroundMode;
333 dc->w.backgroundColor = dcs->w.backgroundColor;
334 dc->w.textColor = dcs->w.textColor;
335 dc->w.brushOrgX = dcs->w.brushOrgX;
336 dc->w.brushOrgY = dcs->w.brushOrgY;
337 dc->w.textAlign = dcs->w.textAlign;
338 dc->w.charExtra = dcs->w.charExtra;
339 dc->w.breakTotalExtra = dcs->w.breakTotalExtra;
340 dc->w.breakCount = dcs->w.breakCount;
341 dc->w.breakExtra = dcs->w.breakExtra;
342 dc->w.breakRem = dcs->w.breakRem;
343 dc->w.MapMode = dcs->w.MapMode;
344 dc->w.GraphicsMode = dcs->w.GraphicsMode;
346 /* Apparently, the DC origin is not changed by [GS]etDCState */
347 dc->w.DCOrgX = dcs->w.DCOrgX;
348 dc->w.DCOrgY = dcs->w.DCOrgY;
350 dc->w.CursPosX = dcs->w.CursPosX;
351 dc->w.CursPosY = dcs->w.CursPosY;
352 dc->w.ArcDirection = dcs->w.ArcDirection;
353 dc->w.xformWorld2Wnd = dcs->w.xformWorld2Wnd;
354 dc->w.xformWorld2Vport = dcs->w.xformWorld2Vport;
355 dc->w.xformVport2World = dcs->w.xformVport2World;
356 dc->w.vport2WorldValid = dcs->w.vport2WorldValid;
358 dc->wndOrgX = dcs->wndOrgX;
359 dc->wndOrgY = dcs->wndOrgY;
360 dc->wndExtX = dcs->wndExtX;
361 dc->wndExtY = dcs->wndExtY;
362 dc->vportOrgX = dcs->vportOrgX;
363 dc->vportOrgY = dcs->vportOrgY;
364 dc->vportExtX = dcs->vportExtX;
365 dc->vportExtY = dcs->vportExtY;
367 if (!(dc->w.flags & DC_MEMORY)) dc->w.bitsPerPixel = dcs->w.bitsPerPixel;
371 if (!dc->w.hClipRgn) dc->w.hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
372 CombineRgn( dc->w.hClipRgn, dcs->w.hClipRgn, 0, RGN_COPY );
376 if (dc->w.hClipRgn) DeleteObject16( dc->w.hClipRgn );
379 CLIPPING_UpdateGCRegion( dc );
381 SelectObject( hdc, dcs->w.hBitmap );
382 SelectObject( hdc, dcs->w.hBrush );
383 SelectObject( hdc, dcs->w.hFont );
384 SelectObject( hdc, dcs->w.hPen );
385 SetBkColor( hdc, dcs->w.backgroundColor);
386 SetTextColor( hdc, dcs->w.textColor);
387 GDISelectPalette16( hdc, dcs->w.hPalette, FALSE );
388 GDI_HEAP_UNLOCK( hdc );
389 GDI_HEAP_UNLOCK( hdcs );
393 /***********************************************************************
396 INT16 WINAPI SaveDC16( HDC16 hdc )
398 return (INT16)SaveDC( hdc );
402 /***********************************************************************
405 INT WINAPI SaveDC( HDC hdc )
411 dc = DC_GetDCPtr( hdc );
414 if(dc->funcs->pSaveDC)
415 return dc->funcs->pSaveDC( dc );
417 if (!(hdcs = GetDCState16( hdc )))
419 GDI_HEAP_UNLOCK( hdc );
422 dcs = (DC *) GDI_HEAP_LOCK( hdcs );
424 /* Copy path. The reason why path saving / restoring is in SaveDC/
425 * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
426 * functions are only in Win16 (which doesn't have paths) and that
427 * SetDCState doesn't allow us to signal an error (which can happen
428 * when copying paths).
430 if (!PATH_AssignGdiPath( &dcs->w.path, &dc->w.path ))
432 GDI_HEAP_UNLOCK( hdc );
433 GDI_HEAP_UNLOCK( hdcs );
438 dcs->header.hNext = dc->header.hNext;
439 dc->header.hNext = hdcs;
440 TRACE("(%04x): returning %d\n", hdc, dc->saveLevel+1 );
441 ret = ++dc->saveLevel;
442 GDI_HEAP_UNLOCK( hdcs );
443 GDI_HEAP_UNLOCK( hdc );
448 /***********************************************************************
449 * RestoreDC16 (GDI.39)
451 BOOL16 WINAPI RestoreDC16( HDC16 hdc, INT16 level )
453 return RestoreDC( hdc, level );
457 /***********************************************************************
458 * RestoreDC (GDI32.290)
460 BOOL WINAPI RestoreDC( HDC hdc, INT level )
465 TRACE("%04x %d\n", hdc, level );
466 dc = DC_GetDCPtr( hdc );
467 if(!dc) return FALSE;
468 if(dc->funcs->pRestoreDC)
469 return dc->funcs->pRestoreDC( dc, level );
471 if (level == -1) level = dc->saveLevel;
472 if ((level < 1) || (level > dc->saveLevel))
474 GDI_HEAP_UNLOCK( hdc );
479 while (dc->saveLevel >= level)
481 HDC16 hdcs = dc->header.hNext;
482 if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC )))
484 GDI_HEAP_UNLOCK( hdc );
487 dc->header.hNext = dcs->header.hNext;
488 if (--dc->saveLevel < level)
490 SetDCState16( hdc, hdcs );
491 if (!PATH_AssignGdiPath( &dc->w.path, &dcs->w.path ))
492 /* FIXME: This might not be quite right, since we're
493 * returning FALSE but still destroying the saved DC state */
498 GDI_HEAP_UNLOCK( hdc );
503 /***********************************************************************
504 * CreateDC16 (GDI.53)
506 HDC16 WINAPI CreateDC16( LPCSTR driver, LPCSTR device, LPCSTR output,
507 const DEVMODEA *initData )
510 const DC_FUNCTIONS *funcs;
514 if(!DRIVER_GetDriverName( device, buf, sizeof(buf) )) return 0;
518 if (!(funcs = DRIVER_FindDriver( buf ))) return 0;
519 if (!(dc = DC_AllocDC( funcs ))) return 0;
522 TRACE("(driver=%s, device=%s, output=%s): returning %04x\n",
523 debugstr_a(driver), debugstr_a(device), debugstr_a(output), dc->hSelf );
525 if (dc->funcs->pCreateDC &&
526 !dc->funcs->pCreateDC( dc, buf, device, output, initData ))
528 WARN("creation aborted by device\n" );
529 GDI_HEAP_FREE( dc->hSelf );
534 GDI_HEAP_UNLOCK( dc->hSelf );
539 /***********************************************************************
542 HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
543 const DEVMODEA *initData )
545 return CreateDC16( driver, device, output, (const DEVMODEA *)initData );
549 /***********************************************************************
552 HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
553 const DEVMODEW *initData )
555 LPSTR driverA = HEAP_strdupWtoA( GetProcessHeap(), 0, driver );
556 LPSTR deviceA = HEAP_strdupWtoA( GetProcessHeap(), 0, device );
557 LPSTR outputA = HEAP_strdupWtoA( GetProcessHeap(), 0, output );
558 HDC res = CreateDC16( driverA, deviceA, outputA,
559 (const DEVMODEA *)initData /*FIXME*/ );
560 HeapFree( GetProcessHeap(), 0, driverA );
561 HeapFree( GetProcessHeap(), 0, deviceA );
562 HeapFree( GetProcessHeap(), 0, outputA );
567 /***********************************************************************
568 * CreateIC16 (GDI.153)
570 HDC16 WINAPI CreateIC16( LPCSTR driver, LPCSTR device, LPCSTR output,
571 const DEVMODEA* initData )
573 /* Nothing special yet for ICs */
574 return CreateDC16( driver, device, output, initData );
578 /***********************************************************************
579 * CreateICA (GDI32.49)
581 HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
582 const DEVMODEA* initData )
584 /* Nothing special yet for ICs */
585 return CreateDCA( driver, device, output, initData );
589 /***********************************************************************
590 * CreateICW (GDI32.50)
592 HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
593 const DEVMODEW* initData )
595 /* Nothing special yet for ICs */
596 return CreateDCW( driver, device, output, initData );
600 /***********************************************************************
601 * CreateCompatibleDC16 (GDI.52)
603 HDC16 WINAPI CreateCompatibleDC16( HDC16 hdc )
605 return (HDC16)CreateCompatibleDC( hdc );
609 /***********************************************************************
610 * CreateCompatibleDC (GDI32.31)
612 HDC WINAPI CreateCompatibleDC( HDC hdc )
615 const DC_FUNCTIONS *funcs;
617 if ((origDC = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC ))) funcs = origDC->funcs;
618 else funcs = DRIVER_FindDriver( "DISPLAY" );
619 if (!funcs) return 0;
621 if (!(dc = DC_AllocDC( funcs ))) return 0;
623 TRACE("(%04x): returning %04x\n",
626 dc->w.flags = DC_MEMORY;
627 dc->w.bitsPerPixel = 1;
628 dc->w.hBitmap = hPseudoStockBitmap;
630 /* Copy the driver-specific physical device info into
631 * the new DC. The driver may use this read-only info
632 * while creating the compatible DC below. */
634 dc->physDev = origDC->physDev;
636 if (dc->funcs->pCreateDC &&
637 !dc->funcs->pCreateDC( dc, NULL, NULL, NULL, NULL ))
639 WARN("creation aborted by device\n");
640 GDI_HEAP_FREE( dc->hSelf );
645 GDI_HEAP_UNLOCK( dc->hSelf );
650 /***********************************************************************
651 * DeleteDC16 (GDI.68)
653 BOOL16 WINAPI DeleteDC16( HDC16 hdc )
655 return DeleteDC( hdc );
659 /***********************************************************************
660 * DeleteDC (GDI32.67)
662 BOOL WINAPI DeleteDC( HDC hdc )
664 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
665 if (!dc) return FALSE;
667 TRACE("%04x\n", hdc );
669 /* Call hook procedure to check whether is it OK to delete this DC */
670 if ( dc->hookThunk && !(dc->w.flags & (DC_SAVED | DC_MEMORY))
671 && dc->hookThunk( hdc, DCHC_DELETEDC, dc->dwHookData, 0 ) == FALSE )
673 GDI_HEAP_UNLOCK( hdc );
677 while (dc->saveLevel)
680 HDC16 hdcs = dc->header.hNext;
681 if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC ))) break;
682 dc->header.hNext = dcs->header.hNext;
687 if (!(dc->w.flags & DC_SAVED))
689 SelectObject( hdc, STOCK_BLACK_PEN );
690 SelectObject( hdc, STOCK_WHITE_BRUSH );
691 SelectObject( hdc, STOCK_SYSTEM_FONT );
692 if (dc->funcs->pDeleteDC) dc->funcs->pDeleteDC(dc);
695 if (dc->w.hClipRgn) DeleteObject( dc->w.hClipRgn );
696 if (dc->w.hVisRgn) DeleteObject( dc->w.hVisRgn );
697 if (dc->w.hGCClipRgn) DeleteObject( dc->w.hGCClipRgn );
698 if (dc->w.pAbortProc) THUNK_Free( (FARPROC)dc->w.pAbortProc );
699 if (dc->hookThunk) THUNK_Free( (FARPROC)dc->hookThunk );
700 PATH_DestroyGdiPath(&dc->w.path);
702 return GDI_FreeObject( hdc );
706 /***********************************************************************
707 * ResetDC16 (GDI.376)
709 HDC16 WINAPI ResetDC16( HDC16 hdc, const DEVMODEA *devmode )
716 /***********************************************************************
717 * ResetDCA (GDI32.287)
719 HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
726 /***********************************************************************
727 * ResetDCW (GDI32.288)
729 HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
736 /***********************************************************************
737 * GetDeviceCaps16 (GDI.80)
739 INT16 WINAPI GetDeviceCaps16( HDC16 hdc, INT16 cap )
741 return GetDeviceCaps( hdc, cap );
745 /***********************************************************************
746 * GetDeviceCaps (GDI32.171)
748 INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
750 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
756 /* Device capabilities for the printer */
760 if(Escape(hdc, GETPHYSPAGESIZE, 0, NULL, (LPVOID)&pt) > 0)
763 if(Escape(hdc, GETPHYSPAGESIZE, 0, NULL, (LPVOID)&pt) > 0)
765 case PHYSICALOFFSETX:
766 if(Escape(hdc, GETPRINTINGOFFSET, 0, NULL, (LPVOID)&pt) > 0)
768 case PHYSICALOFFSETY:
769 if(Escape(hdc, GETPRINTINGOFFSET, 0, NULL, (LPVOID)&pt) > 0)
772 if(Escape(hdc, GETSCALINGFACTOR, 0, NULL, (LPVOID)&pt) > 0)
775 if(Escape(hdc, GETSCALINGFACTOR, 0, NULL, (LPVOID)&pt) > 0)
779 if ((cap < 0) || (cap > sizeof(DeviceCaps)-sizeof(WORD)))
781 GDI_HEAP_UNLOCK( hdc );
785 if (((cap>=46) && (cap<88)) || ((cap>=92) && (cap<104)))
786 FIXME("(%04x,%d): unsupported DeviceCaps capability, will yield 0!\n",
789 TRACE("(%04x,%d): returning %d\n",
790 hdc, cap, *(WORD *)(((char *)dc->w.devCaps) + cap) );
791 ret = *(WORD *)(((char *)dc->w.devCaps) + cap);
792 GDI_HEAP_UNLOCK( hdc );
797 /***********************************************************************
798 * SetBkColor16 (GDI.1)
800 COLORREF WINAPI SetBkColor16( HDC16 hdc, COLORREF color )
802 return SetBkColor( hdc, color );
806 /***********************************************************************
807 * SetBkColor (GDI32.305)
809 COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
812 DC * dc = DC_GetDCPtr( hdc );
814 if (!dc) return 0x80000000;
815 if (dc->funcs->pSetBkColor)
816 oldColor = dc->funcs->pSetBkColor(dc, color);
818 oldColor = dc->w.backgroundColor;
819 dc->w.backgroundColor = color;
821 GDI_HEAP_UNLOCK( hdc );
826 /***********************************************************************
827 * SetTextColor16 (GDI.9)
829 COLORREF WINAPI SetTextColor16( HDC16 hdc, COLORREF color )
831 return SetTextColor( hdc, color );
835 /***********************************************************************
836 * SetTextColor (GDI32.338)
838 COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
841 DC * dc = DC_GetDCPtr( hdc );
843 if (!dc) return 0x80000000;
844 if (dc->funcs->pSetTextColor)
845 oldColor = dc->funcs->pSetTextColor(dc, color);
847 oldColor = dc->w.textColor;
848 dc->w.textColor = color;
850 GDI_HEAP_UNLOCK( hdc );
854 /***********************************************************************
855 * SetTextAlign16 (GDI.346)
857 UINT16 WINAPI SetTextAlign16( HDC16 hdc, UINT16 align )
859 return SetTextAlign( hdc, align );
863 /***********************************************************************
864 * SetTextAlign (GDI32.336)
866 UINT WINAPI SetTextAlign( HDC hdc, UINT align )
869 DC *dc = DC_GetDCPtr( hdc );
871 if (dc->funcs->pSetTextAlign)
872 prevAlign = dc->funcs->pSetTextAlign(dc, align);
874 prevAlign = dc->w.textAlign;
875 dc->w.textAlign = align;
877 GDI_HEAP_UNLOCK( hdc );
881 /***********************************************************************
882 * GetDCOrgEx (GDI32.168)
884 BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
888 if (!lpp) return FALSE;
889 if (!(dc = (DC *) GDI_GetObjPtr( hDC, DC_MAGIC ))) return FALSE;
892 if (dc->funcs->pGetDCOrgEx) dc->funcs->pGetDCOrgEx( dc, lpp );
893 lpp->x += dc->w.DCOrgX;
894 lpp->y += dc->w.DCOrgY;
895 GDI_HEAP_UNLOCK( hDC );
900 /***********************************************************************
903 DWORD WINAPI GetDCOrg16( HDC16 hdc )
906 if( GetDCOrgEx( hdc, &pt) )
907 return MAKELONG( (WORD)pt.x, (WORD)pt.y );
912 /***********************************************************************
915 DWORD WINAPI SetDCOrg16( HDC16 hdc, INT16 x, INT16 y )
918 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
920 prevOrg = dc->w.DCOrgX | (dc->w.DCOrgY << 16);
923 GDI_HEAP_UNLOCK( hdc );
928 /***********************************************************************
929 * GetGraphicsMode (GDI32.188)
931 INT WINAPI GetGraphicsMode( HDC hdc )
933 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
935 return dc->w.GraphicsMode;
939 /***********************************************************************
940 * SetGraphicsMode (GDI32.317)
942 INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
945 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
947 /* One would think that setting the graphics mode to GM_COMPATIBLE
948 * would also reset the world transformation matrix to the unity
949 * matrix. However, in Windows, this is not the case. This doesn't
950 * make a lot of sense to me, but that's the way it is.
954 if ((mode <= 0) || (mode > GM_LAST)) return 0;
955 ret = dc->w.GraphicsMode;
956 dc->w.GraphicsMode = mode;
961 /***********************************************************************
962 * GetArcDirection16 (GDI.524)
964 INT16 WINAPI GetArcDirection16( HDC16 hdc )
966 return GetArcDirection( (HDC)hdc );
970 /***********************************************************************
971 * GetArcDirection (GDI32.141)
973 INT WINAPI GetArcDirection( HDC hdc )
975 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
980 return dc->w.ArcDirection;
984 /***********************************************************************
985 * SetArcDirection16 (GDI.525)
987 INT16 WINAPI SetArcDirection16( HDC16 hdc, INT16 nDirection )
989 return SetArcDirection( (HDC)hdc, (INT)nDirection );
993 /***********************************************************************
994 * SetArcDirection (GDI32.302)
996 INT WINAPI SetArcDirection( HDC hdc, INT nDirection )
998 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1004 if (nDirection!=AD_COUNTERCLOCKWISE && nDirection!=AD_CLOCKWISE)
1006 SetLastError(ERROR_INVALID_PARAMETER);
1010 nOldDirection = dc->w.ArcDirection;
1011 dc->w.ArcDirection = nDirection;
1013 return nOldDirection;
1017 /***********************************************************************
1018 * GetWorldTransform (GDI32.244)
1020 BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
1022 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1029 *xform = dc->w.xformWorld2Wnd;
1035 /***********************************************************************
1036 * SetWorldTransform (GDI32.346)
1038 BOOL WINAPI SetWorldTransform( HDC hdc, const XFORM *xform )
1040 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1044 SetLastError( ERROR_INVALID_HANDLE );
1051 /* Check that graphics mode is GM_ADVANCED */
1052 if (dc->w.GraphicsMode!=GM_ADVANCED)
1055 dc->w.xformWorld2Wnd = *xform;
1057 DC_UpdateXforms( dc );
1063 /****************************************************************************
1064 * ModifyWorldTransform [GDI32.253]
1065 * Modifies the world transformation for a device context.
1068 * hdc [I] Handle to device context
1069 * xform [I] XFORM structure that will be used to modify the world
1071 * iMode [I] Specifies in what way to modify the world transformation
1074 * Resets the world transformation to the identity matrix.
1075 * The parameter xform is ignored.
1077 * Multiplies xform into the world transformation matrix from
1080 * Multiplies xform into the world transformation matrix from
1085 BOOL WINAPI ModifyWorldTransform( HDC hdc, const XFORM *xform,
1088 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1090 /* Check for illegal parameters */
1093 SetLastError( ERROR_INVALID_HANDLE );
1099 /* Check that graphics mode is GM_ADVANCED */
1100 if (dc->w.GraphicsMode!=GM_ADVANCED)
1106 dc->w.xformWorld2Wnd.eM11 = 1.0f;
1107 dc->w.xformWorld2Wnd.eM12 = 0.0f;
1108 dc->w.xformWorld2Wnd.eM21 = 0.0f;
1109 dc->w.xformWorld2Wnd.eM22 = 1.0f;
1110 dc->w.xformWorld2Wnd.eDx = 0.0f;
1111 dc->w.xformWorld2Wnd.eDy = 0.0f;
1113 case MWT_LEFTMULTIPLY:
1114 CombineTransform( &dc->w.xformWorld2Wnd, xform,
1115 &dc->w.xformWorld2Wnd );
1117 case MWT_RIGHTMULTIPLY:
1118 CombineTransform( &dc->w.xformWorld2Wnd, &dc->w.xformWorld2Wnd,
1125 DC_UpdateXforms( dc );
1131 /****************************************************************************
1132 * CombineTransform [GDI32.20]
1133 * Combines two transformation matrices.
1136 * xformResult [O] Stores the result of combining the two matrices
1137 * xform1 [I] Specifies the first matrix to apply
1138 * xform2 [I] Specifies the second matrix to apply
1141 * The same matrix can be passed in for more than one of the parameters.
1145 BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1146 const XFORM *xform2 )
1150 /* Check for illegal parameters */
1151 if (!xformResult || !xform1 || !xform2)
1154 /* Create the result in a temporary XFORM, since xformResult may be
1155 * equal to xform1 or xform2 */
1156 xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1157 xform1->eM12 * xform2->eM21;
1158 xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1159 xform1->eM12 * xform2->eM22;
1160 xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1161 xform1->eM22 * xform2->eM21;
1162 xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1163 xform1->eM22 * xform2->eM22;
1164 xformTemp.eDx = xform1->eDx * xform2->eM11 +
1165 xform1->eDy * xform2->eM21 +
1167 xformTemp.eDy = xform1->eDx * xform2->eM12 +
1168 xform1->eDy * xform2->eM22 +
1171 /* Copy the result to xformResult */
1172 *xformResult = xformTemp;
1178 /***********************************************************************
1179 * SetDCHook (GDI.190)
1181 /* ### start build ### */
1182 extern WORD CALLBACK GDI_CallTo16_word_wwll(FARPROC16,WORD,WORD,LONG,LONG);
1183 /* ### stop build ### */
1184 BOOL16 WINAPI SetDCHook( HDC16 hdc, FARPROC16 hookProc, DWORD dwHookData )
1186 DC *dc = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC );
1187 if (!dc) return FALSE;
1190 * Note: We store the original SEGPTR 'hookProc' as we need to be
1191 * able to return it verbatim in GetDCHook,
1193 * On the other hand, we still call THUNK_Alloc and store the
1194 * 32-bit thunk into another DC member, because THUNK_Alloc
1195 * recognizes the (typical) case that the 'hookProc' is indeed
1196 * the 16-bit API entry point of a built-in routine (e.g. DCHook16)
1198 * We could perform that test every time the hook is about to
1199 * be called (or else we could live with the 32->16->32 detour),
1200 * but this way is the most efficient ...
1203 dc->hookProc = hookProc;
1204 dc->dwHookData = dwHookData;
1206 THUNK_Free( (FARPROC)dc->hookThunk );
1207 dc->hookThunk = (DCHOOKPROC)
1208 THUNK_Alloc( hookProc, (RELAY)GDI_CallTo16_word_wwll );
1210 GDI_HEAP_UNLOCK( hdc );
1215 /***********************************************************************
1216 * GetDCHook (GDI.191)
1218 DWORD WINAPI GetDCHook( HDC16 hdc, FARPROC16 *phookProc )
1220 DC *dc = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC );
1222 *phookProc = dc->hookProc;
1223 GDI_HEAP_UNLOCK( hdc );
1224 return dc->dwHookData;
1228 /***********************************************************************
1229 * SetHookFlags (GDI.192)
1231 WORD WINAPI SetHookFlags16(HDC16 hDC, WORD flags)
1233 DC* dc = (DC*)GDI_GetObjPtr( hDC, DC_MAGIC );
1237 WORD wRet = dc->w.flags & DC_DIRTY;
1239 /* "Undocumented Windows" info is slightly confusing.
1242 TRACE("hDC %04x, flags %04x\n",hDC,flags);
1244 if( flags & DCHF_INVALIDATEVISRGN )
1245 dc->w.flags |= DC_DIRTY;
1246 else if( flags & DCHF_VALIDATEVISRGN || !flags )
1247 dc->w.flags &= ~DC_DIRTY;
1248 GDI_HEAP_UNLOCK( hDC );
1254 /***********************************************************************
1255 * SetICMMode (GDI32.318)
1257 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1259 /*FIXME Asuming that ICM is always off, and cannot be turned on */
1260 if (iEnableICM == ICM_OFF) return ICM_OFF;
1261 if (iEnableICM == ICM_ON) return 0;
1262 if (iEnableICM == ICM_QUERY) return ICM_OFF;
1267 /***********************************************************************
1268 * GetColorSpace (GDI32.165)
1270 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1272 /*FIXME Need to to whatever GetColorSpace actually does */
1276 /***********************************************************************
1277 * CreateColorSpaceA (GDI32.???)
1279 HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
1285 /***********************************************************************
1286 * CreateColorSpaceW (GDI32.???)
1288 HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
1294 /***********************************************************************
1295 * DeleteColorSpace (GDI32.???)
1297 BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
1304 /***********************************************************************
1305 * SetColorSpace (GDI32.???)
1307 HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
1314 /***********************************************************************
1315 * GetBoundsRect16 (GDI.194)
1317 UINT16 WINAPI GetBoundsRect16(HDC16 hdc, LPRECT16 rect, UINT16 flags)
1319 return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1322 /***********************************************************************
1323 * GetBoundsRect (GDI32.147)
1325 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1327 FIXME("(): stub\n");
1328 return DCB_RESET; /* bounding rectangle always empty */
1331 /***********************************************************************
1332 * SetBoundsRect16 (GDI.193)
1334 UINT16 WINAPI SetBoundsRect16(HDC16 hdc, const RECT16* rect, UINT16 flags)
1336 if ( (flags & DCB_ACCUMULATE) || (flags & DCB_ENABLE) )
1337 FIXME("(%04x, %p, %04x): stub\n", hdc, rect, flags );
1339 return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1342 /***********************************************************************
1343 * SetBoundsRect (GDI32.307)
1345 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1347 FIXME("(): stub\n");
1348 return DCB_DISABLE; /* bounding rectangle always empty */
1352 /***********************************************************************
1353 * GetRelAbs (GDI32.218)
1355 INT WINAPI GetRelAbs( HDC hdc, DWORD dwIgnore )
1357 DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1359 return dc->w.relAbsMode;
1362 /***********************************************************************
1365 * Disables GDI, switches back to text mode.
1366 * We don't have to do anything here,
1367 * just let console support handle everything
1369 void WINAPI Death16(HDC16 hDC)
1371 MESSAGE("Death(%04x) called. Application enters text mode...\n", hDC);
1374 /***********************************************************************
1375 * Resurrection (GDI.122)
1377 * Restores GDI functionality
1379 void WINAPI Resurrection16(HDC16 hDC,
1380 WORD w1, WORD w2, WORD w3, WORD w4, WORD w5, WORD w6)
1382 MESSAGE("Resurrection(%04x, %04x, %04x, %04x, %04x, %04x, %04x) called. Application left text mode.\n", hDC, w1, w2, w3, w4, w5, w6);
1385 /***********************************************************************
1386 * GetLayout (GDI32.321)
1388 * Gets left->right or right->left text layout flags of a dc.
1389 * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1392 DWORD WINAPI GetLayout(HDC hdc)
1394 FIXME("(%08x): stub\n", hdc);
1395 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1399 /***********************************************************************
1400 * SetLayout (GDI32.450)
1402 * Sets left->right or right->left text layout flags of a dc.
1403 * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1406 DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
1408 FIXME("(%08x,%08lx): stub\n", hdc, layout);
1409 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);