objects/dc.c

   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include "gdi.h"
  26 #include "heap.h"
  27 #include "wine/debug.h"
  28 #include "font.h"
  29 #include "winerror.h"
  30 #include "windef.h"
  31 #include "wingdi.h"
  32 #include "wine/winuser16.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(dc);
  35
  36 /* ### start build ### */
  37 extern WORD CALLBACK GDI_CallTo16_word_wwll(FARPROC16,WORD,WORD,LONG,LONG);
  38 /* ### stop build ### */
  39
  40 static BOOL DC_DeleteObject( HGDIOBJ handle, void *obj );
  41
  42 static const struct gdi_obj_funcs dc_funcs =
  43 {
  44     NULL,             /* pSelectObject */
  45     NULL,             /* pGetObject16 */
  46     NULL,             /* pGetObjectA */
  47     NULL,             /* pGetObjectW */
  48     NULL,             /* pUnrealizeObject */
  49     DC_DeleteObject   /* pDeleteObject */
  50 };
  51
  52 /***********************************************************************
  53  *           DC_AllocDC
  54  */
  55 DC *DC_AllocDC( const DC_FUNCTIONS *funcs )
  56 {
  57     HDC hdc;
  58     DC *dc;
  59
  60     if (!(dc = GDI_AllocObject( sizeof(*dc), DC_MAGIC, &hdc, &dc_funcs ))) return NULL;
  61
  62     dc->hSelf               = hdc;
  63     dc->funcs               = funcs;
  64     dc->physDev             = NULL;
  65     dc->saveLevel           = 0;
  66     dc->dwHookData          = 0;
  67     dc->hookProc            = NULL;
  68     dc->hookThunk           = NULL;
  69     dc->wndOrgX             = 0;
  70     dc->wndOrgY             = 0;
  71     dc->wndExtX             = 1;
  72     dc->wndExtY             = 1;
  73     dc->vportOrgX           = 0;
  74     dc->vportOrgY           = 0;
  75     dc->vportExtX           = 1;
  76     dc->vportExtY           = 1;
  77     dc->flags               = 0;
  78     dc->hClipRgn            = 0;
  79     dc->hVisRgn             = 0;
  80     dc->hGCClipRgn          = 0;
  81     dc->hPen                = GetStockObject( BLACK_PEN );
  82     dc->hBrush              = GetStockObject( WHITE_BRUSH );
  83     dc->hFont               = GetStockObject( SYSTEM_FONT );
  84     dc->hBitmap             = 0;
  85     dc->hDevice             = 0;
  86     dc->hPalette            = GetStockObject( DEFAULT_PALETTE );
  87     dc->gdiFont             = 0;
  88     dc->ROPmode             = R2_COPYPEN;
  89     dc->polyFillMode        = ALTERNATE;
  90     dc->stretchBltMode      = BLACKONWHITE;
  91     dc->relAbsMode          = ABSOLUTE;
  92     dc->backgroundMode      = OPAQUE;
  93     dc->backgroundColor     = RGB( 255, 255, 255 );
  94     dc->textColor           = RGB( 0, 0, 0 );
  95     dc->brushOrgX           = 0;
  96     dc->brushOrgY           = 0;
  97     dc->textAlign           = TA_LEFT | TA_TOP | TA_NOUPDATECP;
  98     dc->charExtra           = 0;
  99     dc->breakTotalExtra     = 0;
 100     dc->breakCount          = 0;
 101     dc->breakExtra          = 0;
 102     dc->breakRem            = 0;
 103     dc->totalExtent.left    = 0;
 104     dc->totalExtent.top     = 0;
 105     dc->totalExtent.right   = 0;
 106     dc->totalExtent.bottom  = 0;
 107     dc->bitsPerPixel        = 1;
 108     dc->MapMode             = MM_TEXT;
 109     dc->GraphicsMode        = GM_COMPATIBLE;
 110     dc->pAbortProc          = NULL;
 111     dc->CursPosX            = 0;
 112     dc->CursPosY            = 0;
 113     dc->ArcDirection        = AD_COUNTERCLOCKWISE;
 114     dc->xformWorld2Wnd.eM11 = 1.0f;
 115     dc->xformWorld2Wnd.eM12 = 0.0f;
 116     dc->xformWorld2Wnd.eM21 = 0.0f;
 117     dc->xformWorld2Wnd.eM22 = 1.0f;
 118     dc->xformWorld2Wnd.eDx  = 0.0f;
 119     dc->xformWorld2Wnd.eDy  = 0.0f;
 120     dc->xformWorld2Vport    = dc->xformWorld2Wnd;
 121     dc->xformVport2World    = dc->xformWorld2Wnd;
 122     dc->vport2WorldValid    = TRUE;
 123     PATH_InitGdiPath(&dc->path);
 124     return dc;
 125 }
 126
 127
 128
 129 /***********************************************************************
 130  *           DC_GetDCPtr
 131  */
 132 DC *DC_GetDCPtr( HDC hdc )
 133 {
 134     GDIOBJHDR *ptr = GDI_GetObjPtr( hdc, MAGIC_DONTCARE );
 135     if (!ptr) return NULL;
 136     if ((GDIMAGIC(ptr->wMagic) == DC_MAGIC) ||
 137         (GDIMAGIC(ptr->wMagic) == METAFILE_DC_MAGIC) ||
 138         (GDIMAGIC(ptr->wMagic) == ENHMETAFILE_DC_MAGIC))
 139         return (DC *)ptr;
 140     GDI_ReleaseObj( hdc );
 141     SetLastError( ERROR_INVALID_HANDLE );
 142     return NULL;
 143 }
 144
 145 /***********************************************************************
 146  *           DC_GetDCUpdate
 147  *
 148  * Retrieve a DC ptr while making sure the visRgn is updated.
 149  * This function may call up to USER so the GDI lock should _not_
 150  * be held when calling it.
 151  */
 152 DC *DC_GetDCUpdate( HDC hdc )
 153 {
 154     DC *dc = DC_GetDCPtr( hdc );
 155     if (!dc) return NULL;
 156     while (dc->flags & DC_DIRTY)
 157     {
 158         dc->flags &= ~DC_DIRTY;
 159         if (!(dc->flags & (DC_SAVED | DC_MEMORY)))
 160         {
 161             DCHOOKPROC proc = dc->hookThunk;
 162             if (proc)
 163             {
 164                 DWORD data = dc->dwHookData;
 165                 GDI_ReleaseObj( hdc );
 166                 proc( hdc, DCHC_INVALIDVISRGN, data, 0 );
 167                 if (!(dc = DC_GetDCPtr( hdc ))) break;
 168                 /* otherwise restart the loop in case it became dirty again in the meantime */
 169             }
 170         }
 171     }
 172     return dc;
 173 }
 174
 175
 176 /***********************************************************************
 177  *           DC_DeleteObject
 178  */
 179 static BOOL DC_DeleteObject( HGDIOBJ handle, void *obj )
 180 {
 181     GDI_ReleaseObj( handle );
 182     return DeleteDC( handle );
 183 }
 184
 185
 186 /***********************************************************************
 187  *           DC_InitDC
 188  *
 189  * Setup device-specific DC values for a newly created DC.
 190  */
 191 void DC_InitDC( DC* dc )
 192 {
 193     RealizeDefaultPalette16( dc->hSelf );
 194     SetTextColor( dc->hSelf, dc->textColor );
 195     SetBkColor( dc->hSelf, dc->backgroundColor );
 196     SelectObject( dc->hSelf, dc->hPen );
 197     SelectObject( dc->hSelf, dc->hBrush );
 198     SelectObject( dc->hSelf, dc->hFont );
 199     CLIPPING_UpdateGCRegion( dc );
 200 }
 201
 202
 203 /***********************************************************************
 204  *           DC_InvertXform
 205  *
 206  * Computes the inverse of the transformation xformSrc and stores it to
 207  * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
 208  * is singular.
 209  */
 210 static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
 211 {
 212     FLOAT determinant;
 213
 214     determinant = xformSrc->eM11*xformSrc->eM22 -
 215         xformSrc->eM12*xformSrc->eM21;
 216     if (determinant > -1e-12 && determinant < 1e-12)
 217         return FALSE;
 218
 219     xformDest->eM11 =  xformSrc->eM22 / determinant;
 220     xformDest->eM12 = -xformSrc->eM12 / determinant;
 221     xformDest->eM21 = -xformSrc->eM21 / determinant;
 222     xformDest->eM22 =  xformSrc->eM11 / determinant;
 223     xformDest->eDx  = -xformSrc->eDx * xformDest->eM11 -
 224                        xformSrc->eDy * xformDest->eM21;
 225     xformDest->eDy  = -xformSrc->eDx * xformDest->eM12 -
 226                        xformSrc->eDy * xformDest->eM22;
 227
 228     return TRUE;
 229 }
 230
 231
 232 /***********************************************************************
 233  *           DC_UpdateXforms
 234  *
 235  * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
 236  * fields of the specified DC by creating a transformation that
 237  * represents the current mapping mode and combining it with the DC's
 238  * world transform. This function should be called whenever the
 239  * parameters associated with the mapping mode (window and viewport
 240  * extents and origins) or the world transform change.
 241  */
 242 void DC_UpdateXforms( DC *dc )
 243 {
 244     XFORM xformWnd2Vport;
 245     FLOAT scaleX, scaleY;
 246
 247     /* Construct a transformation to do the window-to-viewport conversion */
 248     scaleX = (FLOAT)dc->vportExtX / (FLOAT)dc->wndExtX;
 249     scaleY = (FLOAT)dc->vportExtY / (FLOAT)dc->wndExtY;
 250     xformWnd2Vport.eM11 = scaleX;
 251     xformWnd2Vport.eM12 = 0.0;
 252     xformWnd2Vport.eM21 = 0.0;
 253     xformWnd2Vport.eM22 = scaleY;
 254     xformWnd2Vport.eDx  = (FLOAT)dc->vportOrgX -
 255         scaleX * (FLOAT)dc->wndOrgX;
 256     xformWnd2Vport.eDy  = (FLOAT)dc->vportOrgY -
 257         scaleY * (FLOAT)dc->wndOrgY;
 258
 259     /* Combine with the world transformation */
 260     CombineTransform( &dc->xformWorld2Vport, &dc->xformWorld2Wnd,
 261         &xformWnd2Vport );
 262
 263     /* Create inverse of world-to-viewport transformation */
 264     dc->vport2WorldValid = DC_InvertXform( &dc->xformWorld2Vport,
 265         &dc->xformVport2World );
 266 }
 267
 268
 269 /***********************************************************************
 270  *           GetDCState    (GDI.179)
 271  */
 272 HDC16 WINAPI GetDCState16( HDC16 hdc )
 273 {
 274     DC * newdc, * dc;
 275     HGDIOBJ handle;
 276
 277     if (!(dc = DC_GetDCPtr( hdc ))) return 0;
 278     if (!(newdc = GDI_AllocObject( sizeof(DC), DC_MAGIC, &handle, &dc_funcs )))
 279     {
 280       GDI_ReleaseObj( hdc );
 281       return 0;
 282     }
 283     TRACE("(%04x): returning %04x\n", hdc, handle );
 284
 285     newdc->flags            = dc->flags | DC_SAVED;
 286     newdc->hPen             = dc->hPen;
 287     newdc->hBrush           = dc->hBrush;
 288     newdc->hFont            = dc->hFont;
 289     newdc->hBitmap          = dc->hBitmap;
 290     newdc->hDevice          = dc->hDevice;
 291     newdc->hPalette         = dc->hPalette;
 292     newdc->totalExtent      = dc->totalExtent;
 293     newdc->bitsPerPixel     = dc->bitsPerPixel;
 294     newdc->ROPmode          = dc->ROPmode;
 295     newdc->polyFillMode     = dc->polyFillMode;
 296     newdc->stretchBltMode   = dc->stretchBltMode;
 297     newdc->relAbsMode       = dc->relAbsMode;
 298     newdc->backgroundMode   = dc->backgroundMode;
 299     newdc->backgroundColor  = dc->backgroundColor;
 300     newdc->textColor        = dc->textColor;
 301     newdc->brushOrgX        = dc->brushOrgX;
 302     newdc->brushOrgY        = dc->brushOrgY;
 303     newdc->textAlign        = dc->textAlign;
 304     newdc->charExtra        = dc->charExtra;
 305     newdc->breakTotalExtra  = dc->breakTotalExtra;
 306     newdc->breakCount       = dc->breakCount;
 307     newdc->breakExtra       = dc->breakExtra;
 308     newdc->breakRem         = dc->breakRem;
 309     newdc->MapMode          = dc->MapMode;
 310     newdc->GraphicsMode     = dc->GraphicsMode;
 311     newdc->CursPosX         = dc->CursPosX;
 312     newdc->CursPosY         = dc->CursPosY;
 313     newdc->ArcDirection     = dc->ArcDirection;
 314     newdc->xformWorld2Wnd   = dc->xformWorld2Wnd;
 315     newdc->xformWorld2Vport = dc->xformWorld2Vport;
 316     newdc->xformVport2World = dc->xformVport2World;
 317     newdc->vport2WorldValid = dc->vport2WorldValid;
 318     newdc->wndOrgX          = dc->wndOrgX;
 319     newdc->wndOrgY          = dc->wndOrgY;
 320     newdc->wndExtX          = dc->wndExtX;
 321     newdc->wndExtY          = dc->wndExtY;
 322     newdc->vportOrgX        = dc->vportOrgX;
 323     newdc->vportOrgY        = dc->vportOrgY;
 324     newdc->vportExtX        = dc->vportExtX;
 325     newdc->vportExtY        = dc->vportExtY;
 326
 327     newdc->hSelf = (HDC)handle;
 328     newdc->saveLevel = 0;
 329
 330     PATH_InitGdiPath( &newdc->path );
 331
 332     newdc->pAbortProc = NULL;
 333     newdc->hookThunk  = NULL;
 334     newdc->hookProc   = 0;
 335
 336     /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
 337
 338     newdc->hGCClipRgn = newdc->hVisRgn = 0;
 339     if (dc->hClipRgn)
 340     {
 341         newdc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 342         CombineRgn( newdc->hClipRgn, dc->hClipRgn, 0, RGN_COPY );
 343     }
 344     else
 345         newdc->hClipRgn = 0;
 346
 347     if(dc->gdiFont) {
 348         newdc->gdiFont = dc->gdiFont;
 349     } else
 350         newdc->gdiFont = 0;
 351
 352     GDI_ReleaseObj( handle );
 353     GDI_ReleaseObj( hdc );
 354     return handle;
 355 }
 356
 357
 358 /***********************************************************************
 359  *           SetDCState    (GDI.180)
 360  */
 361 void WINAPI SetDCState16( HDC16 hdc, HDC16 hdcs )
 362 {
 363     DC *dc, *dcs;
 364
 365     if (!(dc = DC_GetDCUpdate( hdc ))) return;
 366     if (!(dcs = DC_GetDCPtr( hdcs )))
 367     {
 368       GDI_ReleaseObj( hdc );
 369       return;
 370     }
 371     if (!dcs->flags & DC_SAVED)
 372     {
 373       GDI_ReleaseObj( hdc );
 374       GDI_ReleaseObj( hdcs );
 375       return;
 376     }
 377     TRACE("%04x %04x\n", hdc, hdcs );
 378
 379     dc->flags            = dcs->flags & ~(DC_SAVED | DC_DIRTY);
 380     dc->hDevice          = dcs->hDevice;
 381     dc->totalExtent      = dcs->totalExtent;
 382     dc->ROPmode          = dcs->ROPmode;
 383     dc->polyFillMode     = dcs->polyFillMode;
 384     dc->stretchBltMode   = dcs->stretchBltMode;
 385     dc->relAbsMode       = dcs->relAbsMode;
 386     dc->backgroundMode   = dcs->backgroundMode;
 387     dc->backgroundColor  = dcs->backgroundColor;
 388     dc->textColor        = dcs->textColor;
 389     dc->brushOrgX        = dcs->brushOrgX;
 390     dc->brushOrgY        = dcs->brushOrgY;
 391     dc->textAlign        = dcs->textAlign;
 392     dc->charExtra        = dcs->charExtra;
 393     dc->breakTotalExtra  = dcs->breakTotalExtra;
 394     dc->breakCount       = dcs->breakCount;
 395     dc->breakExtra       = dcs->breakExtra;
 396     dc->breakRem         = dcs->breakRem;
 397     dc->MapMode          = dcs->MapMode;
 398     dc->GraphicsMode     = dcs->GraphicsMode;
 399     dc->CursPosX         = dcs->CursPosX;
 400     dc->CursPosY         = dcs->CursPosY;
 401     dc->ArcDirection     = dcs->ArcDirection;
 402     dc->xformWorld2Wnd   = dcs->xformWorld2Wnd;
 403     dc->xformWorld2Vport = dcs->xformWorld2Vport;
 404     dc->xformVport2World = dcs->xformVport2World;
 405     dc->vport2WorldValid = dcs->vport2WorldValid;
 406
 407     dc->wndOrgX          = dcs->wndOrgX;
 408     dc->wndOrgY          = dcs->wndOrgY;
 409     dc->wndExtX          = dcs->wndExtX;
 410     dc->wndExtY          = dcs->wndExtY;
 411     dc->vportOrgX        = dcs->vportOrgX;
 412     dc->vportOrgY        = dcs->vportOrgY;
 413     dc->vportExtX        = dcs->vportExtX;
 414     dc->vportExtY        = dcs->vportExtY;
 415
 416     if (!(dc->flags & DC_MEMORY)) dc->bitsPerPixel = dcs->bitsPerPixel;
 417
 418     if (dcs->hClipRgn)
 419     {
 420         if (!dc->hClipRgn) dc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 421         CombineRgn( dc->hClipRgn, dcs->hClipRgn, 0, RGN_COPY );
 422     }
 423     else
 424     {
 425         if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 426         dc->hClipRgn = 0;
 427     }
 428     CLIPPING_UpdateGCRegion( dc );
 429
 430     SelectObject( hdc, dcs->hBitmap );
 431     SelectObject( hdc, dcs->hBrush );
 432     SelectObject( hdc, dcs->hFont );
 433     SelectObject( hdc, dcs->hPen );
 434     SetBkColor( hdc, dcs->backgroundColor);
 435     SetTextColor( hdc, dcs->textColor);
 436     GDISelectPalette( hdc, dcs->hPalette, FALSE );
 437     GDI_ReleaseObj( hdcs );
 438     GDI_ReleaseObj( hdc );
 439 }
 440
 441
 442 /***********************************************************************
 443  *           SaveDC    (GDI32.@)
 444  */
 445 INT WINAPI SaveDC( HDC hdc )
 446 {
 447     HDC hdcs;
 448     DC * dc, * dcs;
 449     INT ret;
 450
 451     dc = DC_GetDCPtr( hdc );
 452     if (!dc) return 0;
 453
 454     if(dc->funcs->pSaveDC)
 455     {
 456         ret = dc->funcs->pSaveDC( dc->physDev );
 457         GDI_ReleaseObj( hdc );
 458         return ret;
 459     }
 460
 461     if (!(hdcs = GetDCState16( hdc )))
 462     {
 463       GDI_ReleaseObj( hdc );
 464       return 0;
 465     }
 466     dcs = DC_GetDCPtr( hdcs );
 467
 468     /* Copy path. The reason why path saving / restoring is in SaveDC/
 469      * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
 470      * functions are only in Win16 (which doesn't have paths) and that
 471      * SetDCState doesn't allow us to signal an error (which can happen
 472      * when copying paths).
 473      */
 474     if (!PATH_AssignGdiPath( &dcs->path, &dc->path ))
 475     {
 476         GDI_ReleaseObj( hdc );
 477         GDI_ReleaseObj( hdcs );
 478         DeleteDC( hdcs );
 479         return 0;
 480     }
 481
 482     dcs->header.hNext = dc->header.hNext;
 483     dc->header.hNext = hdcs;
 484     TRACE("(%04x): returning %d\n", hdc, dc->saveLevel+1 );
 485     ret = ++dc->saveLevel;
 486     GDI_ReleaseObj( hdcs );
 487     GDI_ReleaseObj( hdc );
 488     return ret;
 489 }
 490
 491
 492 /***********************************************************************
 493  *           RestoreDC    (GDI32.@)
 494  */
 495 BOOL WINAPI RestoreDC( HDC hdc, INT level )
 496 {
 497     DC * dc, * dcs;
 498     BOOL success;
 499
 500     TRACE("%04x %d\n", hdc, level );
 501     dc = DC_GetDCUpdate( hdc );
 502     if(!dc) return FALSE;
 503     if(dc->funcs->pRestoreDC)
 504     {
 505         success = dc->funcs->pRestoreDC( dc->physDev, level );
 506         GDI_ReleaseObj( hdc );
 507         return success;
 508     }
 509
 510     if (level == -1) level = dc->saveLevel;
 511     if ((level < 1)
 512             /* This pair of checks disagrees with MSDN "Platform SDK:
 513                Windows GDI" July 2000 which says all negative values
 514                for level will be interpreted as an instance relative
 515                to the current state.  Restricting it to just -1 does
 516                not satisfy this */
 517         || (level > dc->saveLevel))
 518     {
 519         GDI_ReleaseObj( hdc );
 520         return FALSE;
 521     }
 522
 523     success=TRUE;
 524     while (dc->saveLevel >= level)
 525     {
 526         HDC16 hdcs = dc->header.hNext;
 527         if (!(dcs = DC_GetDCPtr( hdcs )))
 528         {
 529           GDI_ReleaseObj( hdc );
 530           return FALSE;
 531         }
 532         dc->header.hNext = dcs->header.hNext;
 533         if (--dc->saveLevel < level)
 534         {
 535             SetDCState16( hdc, hdcs );
 536             if (!PATH_AssignGdiPath( &dc->path, &dcs->path ))
 537                 /* FIXME: This might not be quite right, since we're
 538                  * returning FALSE but still destroying the saved DC state */
 539                 success=FALSE;
 540         }
 541         GDI_ReleaseObj( hdcs );
 542         GDI_ReleaseObj( hdc );
 543         DeleteDC( hdcs );
 544         if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
 545     }
 546     GDI_ReleaseObj( hdc );
 547     return success;
 548 }
 549
 550
 551 /***********************************************************************
 552  *           CreateDCA    (GDI32.@)
 553  */
 554 HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
 555                           const DEVMODEA *initData )
 556 {
 557     HDC hdc;
 558     DC * dc;
 559     const DC_FUNCTIONS *funcs;
 560     char buf[300];
 561
 562     if ((!driver) && (!device))
 563         return 0;
 564
 565     GDI_CheckNotLock();
 566
 567     if (!device || !DRIVER_GetDriverName( device, buf, sizeof(buf) ))
 568         strcpy(buf, driver);
 569
 570     if (!(funcs = DRIVER_load_driver( buf )))
 571     {
 572         ERR( "no driver found for %s\n", buf );
 573         return 0;
 574     }
 575     if (!(dc = DC_AllocDC( funcs )))
 576     {
 577         DRIVER_release_driver( funcs );
 578         return 0;
 579     }
 580
 581     dc->flags = 0;
 582
 583     TRACE("(driver=%s, device=%s, output=%s): returning %04x\n",
 584                debugstr_a(driver), debugstr_a(device), debugstr_a(output), dc->hSelf );
 585
 586     if (dc->funcs->pCreateDC &&
 587         !dc->funcs->pCreateDC( dc, &dc->physDev, buf, device, output, initData ))
 588     {
 589         WARN("creation aborted by device\n" );
 590         GDI_FreeObject( dc->hSelf, dc );
 591         DRIVER_release_driver( funcs );
 592         return 0;
 593     }
 594
 595     dc->totalExtent.left   = 0;
 596     dc->totalExtent.top    = 0;
 597     dc->totalExtent.right  = GetDeviceCaps( dc->hSelf, HORZRES );
 598     dc->totalExtent.bottom = GetDeviceCaps( dc->hSelf, VERTRES );
 599     dc->hVisRgn = CreateRectRgnIndirect( &dc->totalExtent );
 600
 601     DC_InitDC( dc );
 602     hdc = dc->hSelf;
 603     GDI_ReleaseObj( hdc );
 604     return hdc;
 605 }
 606
 607
 608 /***********************************************************************
 609  *           CreateDCW    (GDI32.@)
 610  */
 611 HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 612                           const DEVMODEW *initData )
 613 {
 614     LPSTR driverA = HEAP_strdupWtoA( GetProcessHeap(), 0, driver );
 615     LPSTR deviceA = HEAP_strdupWtoA( GetProcessHeap(), 0, device );
 616     LPSTR outputA = HEAP_strdupWtoA( GetProcessHeap(), 0, output );
 617     HDC res = CreateDCA( driverA, deviceA, outputA,
 618                             (const DEVMODEA *)initData /*FIXME*/ );
 619     HeapFree( GetProcessHeap(), 0, driverA );
 620     HeapFree( GetProcessHeap(), 0, deviceA );
 621     HeapFree( GetProcessHeap(), 0, outputA );
 622     return res;
 623 }
 624
 625
 626 /***********************************************************************
 627  *           CreateICA    (GDI32.@)
 628  */
 629 HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
 630                           const DEVMODEA* initData )
 631 {
 632       /* Nothing special yet for ICs */
 633     return CreateDCA( driver, device, output, initData );
 634 }
 635
 636
 637 /***********************************************************************
 638  *           CreateICW    (GDI32.@)
 639  */
 640 HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 641                           const DEVMODEW* initData )
 642 {
 643       /* Nothing special yet for ICs */
 644     return CreateDCW( driver, device, output, initData );
 645 }
 646
 647
 648 /***********************************************************************
 649  *           CreateCompatibleDC   (GDI32.@)
 650  */
 651 HDC WINAPI CreateCompatibleDC( HDC hdc )
 652 {
 653     DC *dc, *origDC;
 654     const DC_FUNCTIONS *funcs;
 655
 656     GDI_CheckNotLock();
 657
 658     if ((origDC = GDI_GetObjPtr( hdc, DC_MAGIC )))
 659     {
 660         funcs = origDC->funcs;
 661         GDI_ReleaseObj( hdc ); /* can't hold the lock while loading the driver */
 662         funcs = DRIVER_get_driver( funcs );
 663     }
 664     else funcs = DRIVER_load_driver( "DISPLAY" );
 665
 666     if (!funcs) return 0;
 667
 668     if (!(dc = DC_AllocDC( funcs )))
 669     {
 670         DRIVER_release_driver( funcs );
 671         return 0;
 672     }
 673
 674     TRACE("(%04x): returning %04x\n",
 675                hdc, dc->hSelf );
 676
 677     dc->flags        = DC_MEMORY;
 678     dc->bitsPerPixel = 1;
 679     dc->hBitmap      = GetStockObject( DEFAULT_BITMAP );
 680
 681     /* Copy the driver-specific physical device info into
 682      * the new DC. The driver may use this read-only info
 683      * while creating the compatible DC below. */
 684     if ((origDC = GDI_GetObjPtr( hdc, DC_MAGIC ))) dc->physDev = origDC->physDev;
 685
 686     if (dc->funcs->pCreateDC &&
 687         !dc->funcs->pCreateDC( dc, &dc->physDev, NULL, NULL, NULL, NULL ))
 688     {
 689         WARN("creation aborted by device\n");
 690         GDI_FreeObject( dc->hSelf, dc );
 691         if (origDC) GDI_ReleaseObj( hdc );
 692         DRIVER_release_driver( funcs );
 693         return 0;
 694     }
 695
 696     dc->totalExtent.left   = 0;
 697     dc->totalExtent.top    = 0;
 698     dc->totalExtent.right  = 1;  /* default bitmap is 1x1 */
 699     dc->totalExtent.bottom = 1;
 700     dc->hVisRgn = CreateRectRgnIndirect( &dc->totalExtent );
 701
 702     DC_InitDC( dc );
 703     GDI_ReleaseObj( dc->hSelf );
 704     if (origDC) GDI_ReleaseObj( hdc );
 705     return dc->hSelf;
 706 }
 707
 708
 709 /***********************************************************************
 710  *           DeleteDC    (GDI32.@)
 711  */
 712 BOOL WINAPI DeleteDC( HDC hdc )
 713 {
 714     const DC_FUNCTIONS *funcs = NULL;
 715     DC * dc;
 716
 717     TRACE("%04x\n", hdc );
 718
 719     GDI_CheckNotLock();
 720
 721     if (!(dc = GDI_GetObjPtr( hdc, DC_MAGIC ))) return FALSE;
 722
 723     /* Call hook procedure to check whether is it OK to delete this DC */
 724     if (dc->hookThunk && !(dc->flags & (DC_SAVED | DC_MEMORY)))
 725     {
 726         DCHOOKPROC proc = dc->hookThunk;
 727         if (proc)
 728         {
 729             DWORD data = dc->dwHookData;
 730             GDI_ReleaseObj( hdc );
 731             if (!proc( hdc, DCHC_DELETEDC, data, 0 )) return FALSE;
 732             if (!(dc = DC_GetDCPtr( hdc ))) return TRUE;  /* deleted by the hook */
 733         }
 734     }
 735
 736     while (dc->saveLevel)
 737     {
 738         DC * dcs;
 739         HDC16 hdcs = dc->header.hNext;
 740         if (!(dcs = DC_GetDCPtr( hdcs ))) break;
 741         dc->header.hNext = dcs->header.hNext;
 742         dc->saveLevel--;
 743         if (dcs->hClipRgn) DeleteObject( dcs->hClipRgn );
 744         if (dcs->hVisRgn) DeleteObject( dcs->hVisRgn );
 745         if (dcs->hGCClipRgn) DeleteObject( dcs->hGCClipRgn );
 746         PATH_DestroyGdiPath(&dcs->path);
 747         GDI_FreeObject( hdcs, dcs );
 748     }
 749
 750     if (!(dc->flags & DC_SAVED))
 751     {
 752         SelectObject( hdc, GetStockObject(BLACK_PEN) );
 753         SelectObject( hdc, GetStockObject(WHITE_BRUSH) );
 754         SelectObject( hdc, GetStockObject(SYSTEM_FONT) );
 755         SelectObject( hdc, GetStockObject(DEFAULT_BITMAP) );
 756         funcs = dc->funcs;
 757         if (dc->funcs->pDeleteDC) dc->funcs->pDeleteDC(dc->physDev);
 758         dc->physDev = NULL;
 759     }
 760
 761     if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 762     if (dc->hVisRgn) DeleteObject( dc->hVisRgn );
 763     if (dc->hGCClipRgn) DeleteObject( dc->hGCClipRgn );
 764     PATH_DestroyGdiPath(&dc->path);
 765
 766     GDI_FreeObject( hdc, dc );
 767     if (funcs) DRIVER_release_driver( funcs );  /* do that after releasing the GDI lock */
 768     return TRUE;
 769 }
 770
 771
 772 /***********************************************************************
 773  *           ResetDCA    (GDI32.@)
 774  */
 775 HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
 776 {
 777     DC *dc;
 778     HDC ret = hdc;
 779
 780     if ((dc = DC_GetDCPtr( hdc )))
 781     {
 782         if (dc->funcs->pResetDC) ret = dc->funcs->pResetDC( dc->physDev, devmode );
 783         GDI_ReleaseObj( hdc );
 784     }
 785     return ret;
 786 }
 787
 788
 789 /***********************************************************************
 790  *           ResetDCW    (GDI32.@)
 791  */
 792 HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
 793 {
 794     return ResetDCA(hdc, (const DEVMODEA*)devmode); /* FIXME */
 795 }
 796
 797
 798 /***********************************************************************
 799  *           GetDeviceCaps    (GDI32.@)
 800  */
 801 INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
 802 {
 803     DC *dc;
 804     INT ret = 0;
 805
 806     if ((dc = DC_GetDCPtr( hdc )))
 807     {
 808         if (dc->funcs->pGetDeviceCaps) ret = dc->funcs->pGetDeviceCaps( dc->physDev, cap );
 809         GDI_ReleaseObj( hdc );
 810     }
 811     return ret;
 812 }
 813
 814
 815 /***********************************************************************
 816  *           SetBkColor    (GDI32.@)
 817  */
 818 COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
 819 {
 820     COLORREF oldColor;
 821     DC * dc = DC_GetDCPtr( hdc );
 822
 823     if (!dc) return CLR_INVALID;
 824     oldColor = dc->backgroundColor;
 825     if (dc->funcs->pSetBkColor)
 826     {
 827         color = dc->funcs->pSetBkColor(dc->physDev, color);
 828         if (color == CLR_INVALID)  /* don't change it */
 829         {
 830             color = oldColor;
 831             oldColor = CLR_INVALID;
 832         }
 833     }
 834     dc->backgroundColor = color;
 835     GDI_ReleaseObj( hdc );
 836     return oldColor;
 837 }
 838
 839
 840 /***********************************************************************
 841  *           SetTextColor    (GDI32.@)
 842  */
 843 COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
 844 {
 845     COLORREF oldColor;
 846     DC * dc = DC_GetDCPtr( hdc );
 847
 848     if (!dc) return CLR_INVALID;
 849     oldColor = dc->textColor;
 850     if (dc->funcs->pSetTextColor)
 851     {
 852         color = dc->funcs->pSetTextColor(dc->physDev, color);
 853         if (color == CLR_INVALID)  /* don't change it */
 854         {
 855             color = oldColor;
 856             oldColor = CLR_INVALID;
 857         }
 858     }
 859     dc->textColor = color;
 860     GDI_ReleaseObj( hdc );
 861     return oldColor;
 862 }
 863
 864
 865 /***********************************************************************
 866  *           SetTextAlign    (GDI32.@)
 867  */
 868 UINT WINAPI SetTextAlign( HDC hdc, UINT align )
 869 {
 870     UINT prevAlign;
 871     DC *dc = DC_GetDCPtr( hdc );
 872     if (!dc) return 0x0;
 873     if (dc->funcs->pSetTextAlign)
 874         prevAlign = dc->funcs->pSetTextAlign(dc->physDev, align);
 875     else {
 876         prevAlign = dc->textAlign;
 877         dc->textAlign = align;
 878     }
 879     GDI_ReleaseObj( hdc );
 880     return prevAlign;
 881 }
 882
 883 /***********************************************************************
 884  *           GetDCOrgEx  (GDI32.@)
 885  */
 886 BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
 887 {
 888     DC * dc;
 889
 890     if (!lpp) return FALSE;
 891     if (!(dc = DC_GetDCPtr( hDC ))) return FALSE;
 892
 893     lpp->x = lpp->y = 0;
 894     if (dc->funcs->pGetDCOrgEx) dc->funcs->pGetDCOrgEx( dc->physDev, lpp );
 895     GDI_ReleaseObj( hDC );
 896     return TRUE;
 897 }
 898
 899
 900 /***********************************************************************
 901  *           SetDCOrg    (GDI.117)
 902  */
 903 DWORD WINAPI SetDCOrg16( HDC16 hdc, INT16 x, INT16 y )
 904 {
 905     DWORD prevOrg = 0;
 906     DC *dc = DC_GetDCPtr( hdc );
 907     if (!dc) return 0;
 908     if (dc->funcs->pSetDCOrg) prevOrg = dc->funcs->pSetDCOrg( dc->physDev, x, y );
 909     GDI_ReleaseObj( hdc );
 910     return prevOrg;
 911 }
 912
 913
 914 /***********************************************************************
 915  *           SetGraphicsMode    (GDI32.@)
 916  */
 917 INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
 918 {
 919     INT ret = 0;
 920     DC *dc = DC_GetDCPtr( hdc );
 921
 922     /* One would think that setting the graphics mode to GM_COMPATIBLE
 923      * would also reset the world transformation matrix to the unity
 924      * matrix. However, in Windows, this is not the case. This doesn't
 925      * make a lot of sense to me, but that's the way it is.
 926      */
 927     if (!dc) return 0;
 928     if ((mode > 0) || (mode <= GM_LAST))
 929     {
 930         ret = dc->GraphicsMode;
 931         dc->GraphicsMode = mode;
 932     }
 933     GDI_ReleaseObj( hdc );
 934     return ret;
 935 }
 936
 937
 938 /***********************************************************************
 939  *           SetArcDirection    (GDI32.@)
 940  */
 941 INT WINAPI SetArcDirection( HDC hdc, INT nDirection )
 942 {
 943     DC * dc;
 944     INT nOldDirection = 0;
 945
 946     if (nDirection!=AD_COUNTERCLOCKWISE && nDirection!=AD_CLOCKWISE)
 947     {
 948         SetLastError(ERROR_INVALID_PARAMETER);
 949         return 0;
 950     }
 951
 952     if ((dc = DC_GetDCPtr( hdc )))
 953     {
 954         nOldDirection = dc->ArcDirection;
 955         dc->ArcDirection = nDirection;
 956         GDI_ReleaseObj( hdc );
 957     }
 958     return nOldDirection;
 959 }
 960
 961
 962 /***********************************************************************
 963  *           GetWorldTransform    (GDI32.@)
 964  */
 965 BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
 966 {
 967     DC * dc;
 968     if (!xform) return FALSE;
 969     if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
 970     *xform = dc->xformWorld2Wnd;
 971     GDI_ReleaseObj( hdc );
 972     return TRUE;
 973 }
 974
 975
 976 /***********************************************************************
 977  *           SetWorldTransform    (GDI32.@)
 978  */
 979 BOOL WINAPI SetWorldTransform( HDC hdc, const XFORM *xform )
 980 {
 981     BOOL ret = FALSE;
 982     DC *dc = DC_GetDCPtr( hdc );
 983
 984     if (!dc) return FALSE;
 985     if (!xform) goto done;
 986
 987     /* Check that graphics mode is GM_ADVANCED */
 988     if (dc->GraphicsMode!=GM_ADVANCED) goto done;
 989
 990     dc->xformWorld2Wnd = *xform;
 991     DC_UpdateXforms( dc );
 992     ret = TRUE;
 993  done:
 994     GDI_ReleaseObj( hdc );
 995     return ret;
 996 }
 997
 998
 999 /****************************************************************************
1000  * ModifyWorldTransform [GDI32.@]
1001  * Modifies the world transformation for a device context.
1002  *
1003  * PARAMS
1004  *    hdc   [I] Handle to device context
1005  *    xform [I] XFORM structure that will be used to modify the world
1006  *              transformation
1007  *    iMode [I] Specifies in what way to modify the world transformation
1008  *              Possible values:
1009  *              MWT_IDENTITY
1010  *                 Resets the world transformation to the identity matrix.
1011  *                 The parameter xform is ignored.
1012  *              MWT_LEFTMULTIPLY
1013  *                 Multiplies xform into the world transformation matrix from
1014  *                 the left.
1015  *              MWT_RIGHTMULTIPLY
1016  *                 Multiplies xform into the world transformation matrix from
1017  *                 the right.
1018  *
1019  * RETURNS STD
1020  */
1021 BOOL WINAPI ModifyWorldTransform( HDC hdc, const XFORM *xform,
1022     DWORD iMode )
1023 {
1024     BOOL ret = FALSE;
1025     DC *dc = DC_GetDCPtr( hdc );
1026
1027     /* Check for illegal parameters */
1028     if (!dc) return FALSE;
1029     if (!xform) goto done;
1030
1031     /* Check that graphics mode is GM_ADVANCED */
1032     if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1033
1034     switch (iMode)
1035     {
1036         case MWT_IDENTITY:
1037             dc->xformWorld2Wnd.eM11 = 1.0f;
1038             dc->xformWorld2Wnd.eM12 = 0.0f;
1039             dc->xformWorld2Wnd.eM21 = 0.0f;
1040             dc->xformWorld2Wnd.eM22 = 1.0f;
1041             dc->xformWorld2Wnd.eDx  = 0.0f;
1042             dc->xformWorld2Wnd.eDy  = 0.0f;
1043             break;
1044         case MWT_LEFTMULTIPLY:
1045             CombineTransform( &dc->xformWorld2Wnd, xform,
1046                 &dc->xformWorld2Wnd );
1047             break;
1048         case MWT_RIGHTMULTIPLY:
1049             CombineTransform( &dc->xformWorld2Wnd, &dc->xformWorld2Wnd,
1050                 xform );
1051             break;
1052         default:
1053             goto done;
1054     }
1055
1056     DC_UpdateXforms( dc );
1057     ret = TRUE;
1058  done:
1059     GDI_ReleaseObj( hdc );
1060     return ret;
1061 }
1062
1063
1064 /****************************************************************************
1065  * CombineTransform [GDI32.@]
1066  * Combines two transformation matrices.
1067  *
1068  * PARAMS
1069  *    xformResult [O] Stores the result of combining the two matrices
1070  *    xform1      [I] Specifies the first matrix to apply
1071  *    xform2      [I] Specifies the second matrix to apply
1072  *
1073  * REMARKS
1074  *    The same matrix can be passed in for more than one of the parameters.
1075  *
1076  * RETURNS STD
1077  */
1078 BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1079     const XFORM *xform2 )
1080 {
1081     XFORM xformTemp;
1082
1083     /* Check for illegal parameters */
1084     if (!xformResult || !xform1 || !xform2)
1085         return FALSE;
1086
1087     /* Create the result in a temporary XFORM, since xformResult may be
1088      * equal to xform1 or xform2 */
1089     xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1090                      xform1->eM12 * xform2->eM21;
1091     xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1092                      xform1->eM12 * xform2->eM22;
1093     xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1094                      xform1->eM22 * xform2->eM21;
1095     xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1096                      xform1->eM22 * xform2->eM22;
1097     xformTemp.eDx  = xform1->eDx  * xform2->eM11 +
1098                      xform1->eDy  * xform2->eM21 +
1099                      xform2->eDx;
1100     xformTemp.eDy  = xform1->eDx  * xform2->eM12 +
1101                      xform1->eDy  * xform2->eM22 +
1102                      xform2->eDy;
1103
1104     /* Copy the result to xformResult */
1105     *xformResult = xformTemp;
1106
1107     return TRUE;
1108 }
1109
1110
1111 /***********************************************************************
1112  *           SetDCHook   (GDI32.@)
1113  *
1114  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1115  */
1116 BOOL WINAPI SetDCHook( HDC hdc, DCHOOKPROC hookProc, DWORD dwHookData )
1117 {
1118     DC *dc = DC_GetDCPtr( hdc );
1119
1120     if (!dc) return FALSE;
1121     dc->dwHookData = dwHookData;
1122     dc->hookThunk = hookProc;
1123     GDI_ReleaseObj( hdc );
1124     return TRUE;
1125 }
1126
1127
1128 /* relay function to call the 16-bit DC hook proc */
1129 static BOOL16 WINAPI call_dc_hook16( HDC16 hdc, WORD code, DWORD data, LPARAM lParam )
1130 {
1131     FARPROC16 proc = NULL;
1132     DC *dc = DC_GetDCPtr( hdc );
1133     if (!dc) return FALSE;
1134     proc = dc->hookProc;
1135     GDI_ReleaseObj( hdc );
1136     if (!proc) return FALSE;
1137     return GDI_CallTo16_word_wwll( proc, hdc, code, data, lParam );
1138 }
1139
1140 /***********************************************************************
1141  *           SetDCHook   (GDI.190)
1142  */
1143 BOOL16 WINAPI SetDCHook16( HDC16 hdc, FARPROC16 hookProc, DWORD dwHookData )
1144 {
1145     DC *dc = DC_GetDCPtr( hdc );
1146     if (!dc) return FALSE;
1147
1148     dc->hookProc = hookProc;
1149     GDI_ReleaseObj( hdc );
1150     return SetDCHook( hdc, call_dc_hook16, dwHookData );
1151 }
1152
1153
1154 /***********************************************************************
1155  *           GetDCHook   (GDI.191)
1156  */
1157 DWORD WINAPI GetDCHook16( HDC16 hdc, FARPROC16 *phookProc )
1158 {
1159     DC *dc = DC_GetDCPtr( hdc );
1160     if (!dc) return 0;
1161     *phookProc = dc->hookProc;
1162     GDI_ReleaseObj( hdc );
1163     return dc->dwHookData;
1164 }
1165
1166
1167 /***********************************************************************
1168  *           SetHookFlags       (GDI.192)
1169  */
1170 WORD WINAPI SetHookFlags16(HDC16 hDC, WORD flags)
1171 {
1172     DC *dc = DC_GetDCPtr( hDC );
1173
1174     if( dc )
1175     {
1176         WORD wRet = dc->flags & DC_DIRTY;
1177
1178         /* "Undocumented Windows" info is slightly confusing.
1179          */
1180
1181         TRACE("hDC %04x, flags %04x\n",hDC,flags);
1182
1183         if( flags & DCHF_INVALIDATEVISRGN )
1184             dc->flags |= DC_DIRTY;
1185         else if( flags & DCHF_VALIDATEVISRGN || !flags )
1186             dc->flags &= ~DC_DIRTY;
1187         GDI_ReleaseObj( hDC );
1188         return wRet;
1189     }
1190     return 0;
1191 }
1192
1193 /***********************************************************************
1194  *           SetICMMode    (GDI32.@)
1195  */
1196 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1197 {
1198 /*FIXME  Asuming that ICM is always off, and cannot be turned on */
1199     if (iEnableICM == ICM_OFF) return ICM_OFF;
1200     if (iEnableICM == ICM_ON) return 0;
1201     if (iEnableICM == ICM_QUERY) return ICM_OFF;
1202     return 0;
1203 }
1204
1205 /***********************************************************************
1206  *           GetDeviceGammaRamp    (GDI32.@)
1207  */
1208 BOOL WINAPI GetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1209 {
1210     BOOL ret = FALSE;
1211     DC *dc = DC_GetDCPtr( hDC );
1212
1213     if( dc )
1214     {
1215         if (dc->funcs->pGetDeviceGammaRamp)
1216             ret = dc->funcs->pGetDeviceGammaRamp(dc->physDev, ptr);
1217         GDI_ReleaseObj( hDC );
1218     }
1219     return ret;
1220 }
1221
1222 /***********************************************************************
1223  *           SetDeviceGammaRamp    (GDI32.@)
1224  */
1225 BOOL WINAPI SetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1226 {
1227     BOOL ret = FALSE;
1228     DC *dc = DC_GetDCPtr( hDC );
1229
1230     if( dc )
1231     {
1232         if (dc->funcs->pSetDeviceGammaRamp)
1233             ret = dc->funcs->pSetDeviceGammaRamp(dc->physDev, ptr);
1234         GDI_ReleaseObj( hDC );
1235     }
1236     return ret;
1237 }
1238
1239 /***********************************************************************
1240  *           GetColorSpace    (GDI32.@)
1241  */
1242 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1243 {
1244 /*FIXME    Need to to whatever GetColorSpace actually does */
1245     return 0;
1246 }
1247
1248 /***********************************************************************
1249  *           CreateColorSpaceA    (GDI32.@)
1250  */
1251 HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
1252 {
1253   FIXME( "stub\n" );
1254   return 0;
1255 }
1256
1257 /***********************************************************************
1258  *           CreateColorSpaceW    (GDI32.@)
1259  */
1260 HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
1261 {
1262   FIXME( "stub\n" );
1263   return 0;
1264 }
1265
1266 /***********************************************************************
1267  *           DeleteColorSpace     (GDI32.@)
1268  */
1269 BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
1270 {
1271   FIXME( "stub\n" );
1272
1273   return TRUE;
1274 }
1275
1276 /***********************************************************************
1277  *           SetColorSpace     (GDI32.@)
1278  */
1279 HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
1280 {
1281   FIXME( "stub\n" );
1282
1283   return hColorSpace;
1284 }
1285
1286 /***********************************************************************
1287  *           GetBoundsRect    (GDI.194)
1288  */
1289 UINT16 WINAPI GetBoundsRect16(HDC16 hdc, LPRECT16 rect, UINT16 flags)
1290 {
1291     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1292 }
1293
1294 /***********************************************************************
1295  *           GetBoundsRect    (GDI32.@)
1296  */
1297 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1298 {
1299     FIXME("(): stub\n");
1300     return DCB_RESET;   /* bounding rectangle always empty */
1301 }
1302
1303 /***********************************************************************
1304  *           SetBoundsRect    (GDI.193)
1305  */
1306 UINT16 WINAPI SetBoundsRect16(HDC16 hdc, const RECT16* rect, UINT16 flags)
1307 {
1308     if ( (flags & DCB_ACCUMULATE) || (flags & DCB_ENABLE) )
1309         FIXME("(%04x, %p, %04x): stub\n", hdc, rect, flags );
1310
1311     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1312 }
1313
1314 /***********************************************************************
1315  *           SetBoundsRect    (GDI32.@)
1316  */
1317 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1318 {
1319     FIXME("(): stub\n");
1320     return DCB_DISABLE;   /* bounding rectangle always empty */
1321 }
1322
1323
1324 /***********************************************************************
1325  *              GetRelAbs               (GDI32.@)
1326  */
1327 INT WINAPI GetRelAbs( HDC hdc, DWORD dwIgnore )
1328 {
1329     INT ret = 0;
1330     DC *dc = DC_GetDCPtr( hdc );
1331     if (dc) ret = dc->relAbsMode;
1332     GDI_ReleaseObj( hdc );
1333     return ret;
1334 }
1335
1336 /***********************************************************************
1337  *           GetLayout    (GDI32.@)
1338  *
1339  * Gets left->right or right->left text layout flags of a dc.
1340  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1341  *
1342  */
1343 DWORD WINAPI GetLayout(HDC hdc)
1344 {
1345     FIXME("(%08x): stub\n", hdc);
1346     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1347     return 0;
1348 }
1349
1350 /***********************************************************************
1351  *           SetLayout    (GDI32.@)
1352  *
1353  * Sets left->right or right->left text layout flags of a dc.
1354  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1355  *
1356  */
1357 DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
1358 {
1359     FIXME("(%08x,%08lx): stub\n", hdc, layout);
1360     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1361     return 0;
1362 }