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 "windef.h"
  26 #include "wingdi.h"
  27 #include "winerror.h"
  28 #include "wownt32.h"
  29 #include "wine/winuser16.h"
  30 #include "gdi.h"
  31 #include "heap.h"
  32 #include "wine/debug.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(dc);
  35
  36 static BOOL DC_DeleteObject( HGDIOBJ handle, void *obj );
  37
  38 static const struct gdi_obj_funcs dc_funcs =
  39 {
  40     NULL,             /* pSelectObject */
  41     NULL,             /* pGetObject16 */
  42     NULL,             /* pGetObjectA */
  43     NULL,             /* pGetObjectW */
  44     NULL,             /* pUnrealizeObject */
  45     DC_DeleteObject   /* pDeleteObject */
  46 };
  47
  48 /***********************************************************************
  49  *           DC_AllocDC
  50  */
  51 DC *DC_AllocDC( const DC_FUNCTIONS *funcs )
  52 {
  53     HDC hdc;
  54     DC *dc;
  55
  56     if (!(dc = GDI_AllocObject( sizeof(*dc), DC_MAGIC, (HGDIOBJ*)&hdc, &dc_funcs ))) return NULL;
  57
  58     dc->hSelf               = hdc;
  59     dc->funcs               = funcs;
  60     dc->physDev             = NULL;
  61     dc->saveLevel           = 0;
  62     dc->dwHookData          = 0;
  63     dc->hookProc            = NULL;
  64     dc->hookThunk           = NULL;
  65     dc->wndOrgX             = 0;
  66     dc->wndOrgY             = 0;
  67     dc->wndExtX             = 1;
  68     dc->wndExtY             = 1;
  69     dc->vportOrgX           = 0;
  70     dc->vportOrgY           = 0;
  71     dc->vportExtX           = 1;
  72     dc->vportExtY           = 1;
  73     dc->flags               = 0;
  74     dc->hClipRgn            = 0;
  75     dc->hVisRgn             = 0;
  76     dc->hGCClipRgn          = 0;
  77     dc->hPen                = GetStockObject( BLACK_PEN );
  78     dc->hBrush              = GetStockObject( WHITE_BRUSH );
  79     dc->hFont               = GetStockObject( SYSTEM_FONT );
  80     dc->hBitmap             = 0;
  81     dc->hDevice             = 0;
  82     dc->hPalette            = GetStockObject( DEFAULT_PALETTE );
  83     dc->gdiFont             = 0;
  84     dc->ROPmode             = R2_COPYPEN;
  85     dc->polyFillMode        = ALTERNATE;
  86     dc->stretchBltMode      = BLACKONWHITE;
  87     dc->relAbsMode          = ABSOLUTE;
  88     dc->backgroundMode      = OPAQUE;
  89     dc->backgroundColor     = RGB( 255, 255, 255 );
  90     dc->textColor           = RGB( 0, 0, 0 );
  91     dc->brushOrgX           = 0;
  92     dc->brushOrgY           = 0;
  93     dc->textAlign           = TA_LEFT | TA_TOP | TA_NOUPDATECP;
  94     dc->charExtra           = 0;
  95     dc->breakTotalExtra     = 0;
  96     dc->breakCount          = 0;
  97     dc->breakExtra          = 0;
  98     dc->breakRem            = 0;
  99     dc->totalExtent.left    = 0;
 100     dc->totalExtent.top     = 0;
 101     dc->totalExtent.right   = 0;
 102     dc->totalExtent.bottom  = 0;
 103     dc->bitsPerPixel        = 1;
 104     dc->MapMode             = MM_TEXT;
 105     dc->GraphicsMode        = GM_COMPATIBLE;
 106     dc->pAbortProc          = NULL;
 107     dc->CursPosX            = 0;
 108     dc->CursPosY            = 0;
 109     dc->ArcDirection        = AD_COUNTERCLOCKWISE;
 110     dc->xformWorld2Wnd.eM11 = 1.0f;
 111     dc->xformWorld2Wnd.eM12 = 0.0f;
 112     dc->xformWorld2Wnd.eM21 = 0.0f;
 113     dc->xformWorld2Wnd.eM22 = 1.0f;
 114     dc->xformWorld2Wnd.eDx  = 0.0f;
 115     dc->xformWorld2Wnd.eDy  = 0.0f;
 116     dc->xformWorld2Vport    = dc->xformWorld2Wnd;
 117     dc->xformVport2World    = dc->xformWorld2Wnd;
 118     dc->vport2WorldValid    = TRUE;
 119     PATH_InitGdiPath(&dc->path);
 120     return dc;
 121 }
 122
 123
 124
 125 /***********************************************************************
 126  *           DC_GetDCPtr
 127  */
 128 DC *DC_GetDCPtr( HDC hdc )
 129 {
 130     GDIOBJHDR *ptr = GDI_GetObjPtr( hdc, MAGIC_DONTCARE );
 131     if (!ptr) return NULL;
 132     if ((GDIMAGIC(ptr->wMagic) == DC_MAGIC) ||
 133         (GDIMAGIC(ptr->wMagic) == METAFILE_DC_MAGIC) ||
 134         (GDIMAGIC(ptr->wMagic) == ENHMETAFILE_DC_MAGIC))
 135         return (DC *)ptr;
 136     GDI_ReleaseObj( hdc );
 137     SetLastError( ERROR_INVALID_HANDLE );
 138     return NULL;
 139 }
 140
 141 /***********************************************************************
 142  *           DC_GetDCUpdate
 143  *
 144  * Retrieve a DC ptr while making sure the visRgn is updated.
 145  * This function may call up to USER so the GDI lock should _not_
 146  * be held when calling it.
 147  */
 148 DC *DC_GetDCUpdate( HDC hdc )
 149 {
 150     DC *dc = DC_GetDCPtr( hdc );
 151     if (!dc) return NULL;
 152     while (dc->flags & DC_DIRTY)
 153     {
 154         dc->flags &= ~DC_DIRTY;
 155         if (!(dc->flags & (DC_SAVED | DC_MEMORY)))
 156         {
 157             DCHOOKPROC proc = dc->hookThunk;
 158             if (proc)
 159             {
 160                 DWORD data = dc->dwHookData;
 161                 GDI_ReleaseObj( hdc );
 162                 proc( HDC_16(hdc), DCHC_INVALIDVISRGN, data, 0 );
 163                 if (!(dc = DC_GetDCPtr( hdc ))) break;
 164                 /* otherwise restart the loop in case it became dirty again in the meantime */
 165             }
 166         }
 167     }
 168     return dc;
 169 }
 170
 171
 172 /***********************************************************************
 173  *           DC_DeleteObject
 174  */
 175 static BOOL DC_DeleteObject( HGDIOBJ handle, void *obj )
 176 {
 177     GDI_ReleaseObj( handle );
 178     return DeleteDC( handle );
 179 }
 180
 181
 182 /***********************************************************************
 183  *           DC_InitDC
 184  *
 185  * Setup device-specific DC values for a newly created DC.
 186  */
 187 void DC_InitDC( DC* dc )
 188 {
 189     if (dc->funcs->pRealizeDefaultPalette) dc->funcs->pRealizeDefaultPalette( dc->physDev );
 190     SetTextColor( dc->hSelf, dc->textColor );
 191     SetBkColor( dc->hSelf, dc->backgroundColor );
 192     SelectObject( dc->hSelf, dc->hPen );
 193     SelectObject( dc->hSelf, dc->hBrush );
 194     SelectObject( dc->hSelf, dc->hFont );
 195     CLIPPING_UpdateGCRegion( dc );
 196 }
 197
 198
 199 /***********************************************************************
 200  *           DC_InvertXform
 201  *
 202  * Computes the inverse of the transformation xformSrc and stores it to
 203  * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
 204  * is singular.
 205  */
 206 static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
 207 {
 208     FLOAT determinant;
 209
 210     determinant = xformSrc->eM11*xformSrc->eM22 -
 211         xformSrc->eM12*xformSrc->eM21;
 212     if (determinant > -1e-12 && determinant < 1e-12)
 213         return FALSE;
 214
 215     xformDest->eM11 =  xformSrc->eM22 / determinant;
 216     xformDest->eM12 = -xformSrc->eM12 / determinant;
 217     xformDest->eM21 = -xformSrc->eM21 / determinant;
 218     xformDest->eM22 =  xformSrc->eM11 / determinant;
 219     xformDest->eDx  = -xformSrc->eDx * xformDest->eM11 -
 220                        xformSrc->eDy * xformDest->eM21;
 221     xformDest->eDy  = -xformSrc->eDx * xformDest->eM12 -
 222                        xformSrc->eDy * xformDest->eM22;
 223
 224     return TRUE;
 225 }
 226
 227
 228 /***********************************************************************
 229  *           DC_UpdateXforms
 230  *
 231  * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
 232  * fields of the specified DC by creating a transformation that
 233  * represents the current mapping mode and combining it with the DC's
 234  * world transform. This function should be called whenever the
 235  * parameters associated with the mapping mode (window and viewport
 236  * extents and origins) or the world transform change.
 237  */
 238 void DC_UpdateXforms( DC *dc )
 239 {
 240     XFORM xformWnd2Vport;
 241     FLOAT scaleX, scaleY;
 242
 243     /* Construct a transformation to do the window-to-viewport conversion */
 244     scaleX = (FLOAT)dc->vportExtX / (FLOAT)dc->wndExtX;
 245     scaleY = (FLOAT)dc->vportExtY / (FLOAT)dc->wndExtY;
 246     xformWnd2Vport.eM11 = scaleX;
 247     xformWnd2Vport.eM12 = 0.0;
 248     xformWnd2Vport.eM21 = 0.0;
 249     xformWnd2Vport.eM22 = scaleY;
 250     xformWnd2Vport.eDx  = (FLOAT)dc->vportOrgX -
 251         scaleX * (FLOAT)dc->wndOrgX;
 252     xformWnd2Vport.eDy  = (FLOAT)dc->vportOrgY -
 253         scaleY * (FLOAT)dc->wndOrgY;
 254
 255     /* Combine with the world transformation */
 256     CombineTransform( &dc->xformWorld2Vport, &dc->xformWorld2Wnd,
 257         &xformWnd2Vport );
 258
 259     /* Create inverse of world-to-viewport transformation */
 260     dc->vport2WorldValid = DC_InvertXform( &dc->xformWorld2Vport,
 261         &dc->xformVport2World );
 262 }
 263
 264
 265 /***********************************************************************
 266  *           GetDCState   (Not a Windows API)
 267  */
 268 HDC WINAPI GetDCState( HDC hdc )
 269 {
 270     DC * newdc, * dc;
 271     HGDIOBJ handle;
 272
 273     if (!(dc = DC_GetDCPtr( hdc ))) return 0;
 274     if (!(newdc = GDI_AllocObject( sizeof(DC), DC_MAGIC, &handle, &dc_funcs )))
 275     {
 276       GDI_ReleaseObj( hdc );
 277       return 0;
 278     }
 279     TRACE("(%p): returning %p\n", hdc, handle );
 280
 281     newdc->flags            = dc->flags | DC_SAVED;
 282     newdc->hPen             = dc->hPen;
 283     newdc->hBrush           = dc->hBrush;
 284     newdc->hFont            = dc->hFont;
 285     newdc->hBitmap          = dc->hBitmap;
 286     newdc->hDevice          = dc->hDevice;
 287     newdc->hPalette         = dc->hPalette;
 288     newdc->totalExtent      = dc->totalExtent;
 289     newdc->bitsPerPixel     = dc->bitsPerPixel;
 290     newdc->ROPmode          = dc->ROPmode;
 291     newdc->polyFillMode     = dc->polyFillMode;
 292     newdc->stretchBltMode   = dc->stretchBltMode;
 293     newdc->relAbsMode       = dc->relAbsMode;
 294     newdc->backgroundMode   = dc->backgroundMode;
 295     newdc->backgroundColor  = dc->backgroundColor;
 296     newdc->textColor        = dc->textColor;
 297     newdc->brushOrgX        = dc->brushOrgX;
 298     newdc->brushOrgY        = dc->brushOrgY;
 299     newdc->textAlign        = dc->textAlign;
 300     newdc->charExtra        = dc->charExtra;
 301     newdc->breakTotalExtra  = dc->breakTotalExtra;
 302     newdc->breakCount       = dc->breakCount;
 303     newdc->breakExtra       = dc->breakExtra;
 304     newdc->breakRem         = dc->breakRem;
 305     newdc->MapMode          = dc->MapMode;
 306     newdc->GraphicsMode     = dc->GraphicsMode;
 307     newdc->CursPosX         = dc->CursPosX;
 308     newdc->CursPosY         = dc->CursPosY;
 309     newdc->ArcDirection     = dc->ArcDirection;
 310     newdc->xformWorld2Wnd   = dc->xformWorld2Wnd;
 311     newdc->xformWorld2Vport = dc->xformWorld2Vport;
 312     newdc->xformVport2World = dc->xformVport2World;
 313     newdc->vport2WorldValid = dc->vport2WorldValid;
 314     newdc->wndOrgX          = dc->wndOrgX;
 315     newdc->wndOrgY          = dc->wndOrgY;
 316     newdc->wndExtX          = dc->wndExtX;
 317     newdc->wndExtY          = dc->wndExtY;
 318     newdc->vportOrgX        = dc->vportOrgX;
 319     newdc->vportOrgY        = dc->vportOrgY;
 320     newdc->vportExtX        = dc->vportExtX;
 321     newdc->vportExtY        = dc->vportExtY;
 322
 323     newdc->hSelf = (HDC)handle;
 324     newdc->saveLevel = 0;
 325
 326     PATH_InitGdiPath( &newdc->path );
 327
 328     newdc->pAbortProc = NULL;
 329     newdc->hookThunk  = NULL;
 330     newdc->hookProc   = 0;
 331
 332     /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
 333
 334     newdc->hGCClipRgn = newdc->hVisRgn = 0;
 335     if (dc->hClipRgn)
 336     {
 337         newdc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 338         CombineRgn( newdc->hClipRgn, dc->hClipRgn, 0, RGN_COPY );
 339     }
 340     else
 341         newdc->hClipRgn = 0;
 342
 343     if(dc->gdiFont) {
 344         newdc->gdiFont = dc->gdiFont;
 345     } else
 346         newdc->gdiFont = 0;
 347
 348     GDI_ReleaseObj( handle );
 349     GDI_ReleaseObj( hdc );
 350     return handle;
 351 }
 352
 353
 354 /***********************************************************************
 355  *           SetDCState   (Not a Windows API)
 356  */
 357 void WINAPI SetDCState( HDC hdc, HDC hdcs )
 358 {
 359     DC *dc, *dcs;
 360
 361     if (!(dc = DC_GetDCUpdate( hdc ))) return;
 362     if (!(dcs = DC_GetDCPtr( hdcs )))
 363     {
 364       GDI_ReleaseObj( hdc );
 365       return;
 366     }
 367     if (!dcs->flags & DC_SAVED)
 368     {
 369       GDI_ReleaseObj( hdc );
 370       GDI_ReleaseObj( hdcs );
 371       return;
 372     }
 373     TRACE("%p %p\n", hdc, hdcs );
 374
 375     dc->flags            = dcs->flags & ~(DC_SAVED | DC_DIRTY);
 376     dc->hDevice          = dcs->hDevice;
 377     dc->totalExtent      = dcs->totalExtent;
 378     dc->ROPmode          = dcs->ROPmode;
 379     dc->polyFillMode     = dcs->polyFillMode;
 380     dc->stretchBltMode   = dcs->stretchBltMode;
 381     dc->relAbsMode       = dcs->relAbsMode;
 382     dc->backgroundMode   = dcs->backgroundMode;
 383     dc->backgroundColor  = dcs->backgroundColor;
 384     dc->textColor        = dcs->textColor;
 385     dc->brushOrgX        = dcs->brushOrgX;
 386     dc->brushOrgY        = dcs->brushOrgY;
 387     dc->textAlign        = dcs->textAlign;
 388     dc->charExtra        = dcs->charExtra;
 389     dc->breakTotalExtra  = dcs->breakTotalExtra;
 390     dc->breakCount       = dcs->breakCount;
 391     dc->breakExtra       = dcs->breakExtra;
 392     dc->breakRem         = dcs->breakRem;
 393     dc->MapMode          = dcs->MapMode;
 394     dc->GraphicsMode     = dcs->GraphicsMode;
 395     dc->CursPosX         = dcs->CursPosX;
 396     dc->CursPosY         = dcs->CursPosY;
 397     dc->ArcDirection     = dcs->ArcDirection;
 398     dc->xformWorld2Wnd   = dcs->xformWorld2Wnd;
 399     dc->xformWorld2Vport = dcs->xformWorld2Vport;
 400     dc->xformVport2World = dcs->xformVport2World;
 401     dc->vport2WorldValid = dcs->vport2WorldValid;
 402
 403     dc->wndOrgX          = dcs->wndOrgX;
 404     dc->wndOrgY          = dcs->wndOrgY;
 405     dc->wndExtX          = dcs->wndExtX;
 406     dc->wndExtY          = dcs->wndExtY;
 407     dc->vportOrgX        = dcs->vportOrgX;
 408     dc->vportOrgY        = dcs->vportOrgY;
 409     dc->vportExtX        = dcs->vportExtX;
 410     dc->vportExtY        = dcs->vportExtY;
 411
 412     if (!(dc->flags & DC_MEMORY)) dc->bitsPerPixel = dcs->bitsPerPixel;
 413
 414     if (dcs->hClipRgn)
 415     {
 416         if (!dc->hClipRgn) dc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 417         CombineRgn( dc->hClipRgn, dcs->hClipRgn, 0, RGN_COPY );
 418     }
 419     else
 420     {
 421         if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 422         dc->hClipRgn = 0;
 423     }
 424     CLIPPING_UpdateGCRegion( dc );
 425
 426     SelectObject( hdc, dcs->hBitmap );
 427     SelectObject( hdc, dcs->hBrush );
 428     SelectObject( hdc, dcs->hFont );
 429     SelectObject( hdc, dcs->hPen );
 430     SetBkColor( hdc, dcs->backgroundColor);
 431     SetTextColor( hdc, dcs->textColor);
 432     GDISelectPalette( hdc, dcs->hPalette, FALSE );
 433     GDI_ReleaseObj( hdcs );
 434     GDI_ReleaseObj( hdc );
 435 }
 436
 437
 438 /***********************************************************************
 439  *           GetDCState   (GDI.179)
 440  */
 441 HDC16 WINAPI GetDCState16( HDC16 hdc )
 442 {
 443     return HDC_16( GetDCState( HDC_32(hdc) ));
 444 }
 445
 446
 447 /***********************************************************************
 448  *           SetDCState   (GDI.180)
 449  */
 450 void WINAPI SetDCState16( HDC16 hdc, HDC16 hdcs )
 451 {
 452     SetDCState( HDC_32(hdc), HDC_32(hdcs) );
 453 }
 454
 455
 456 /***********************************************************************
 457  *           SaveDC    (GDI32.@)
 458  */
 459 INT WINAPI SaveDC( HDC hdc )
 460 {
 461     HDC hdcs;
 462     DC * dc, * dcs;
 463     INT ret;
 464
 465     dc = DC_GetDCPtr( hdc );
 466     if (!dc) return 0;
 467
 468     if(dc->funcs->pSaveDC)
 469     {
 470         ret = dc->funcs->pSaveDC( dc->physDev );
 471         GDI_ReleaseObj( hdc );
 472         return ret;
 473     }
 474
 475     if (!(hdcs = GetDCState( hdc )))
 476     {
 477       GDI_ReleaseObj( hdc );
 478       return 0;
 479     }
 480     dcs = DC_GetDCPtr( hdcs );
 481
 482     /* Copy path. The reason why path saving / restoring is in SaveDC/
 483      * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
 484      * functions are only in Win16 (which doesn't have paths) and that
 485      * SetDCState doesn't allow us to signal an error (which can happen
 486      * when copying paths).
 487      */
 488     if (!PATH_AssignGdiPath( &dcs->path, &dc->path ))
 489     {
 490         GDI_ReleaseObj( hdc );
 491         GDI_ReleaseObj( hdcs );
 492         DeleteDC( hdcs );
 493         return 0;
 494     }
 495
 496     dcs->header.hNext = dc->header.hNext;
 497     dc->header.hNext = HDC_16(hdcs);
 498     TRACE("(%p): returning %d\n", hdc, dc->saveLevel+1 );
 499     ret = ++dc->saveLevel;
 500     GDI_ReleaseObj( hdcs );
 501     GDI_ReleaseObj( hdc );
 502     return ret;
 503 }
 504
 505
 506 /***********************************************************************
 507  *           RestoreDC    (GDI32.@)
 508  */
 509 BOOL WINAPI RestoreDC( HDC hdc, INT level )
 510 {
 511     DC * dc, * dcs;
 512     BOOL success;
 513
 514     TRACE("%p %d\n", hdc, level );
 515     dc = DC_GetDCUpdate( hdc );
 516     if(!dc) return FALSE;
 517     if(dc->funcs->pRestoreDC)
 518     {
 519         success = dc->funcs->pRestoreDC( dc->physDev, level );
 520         GDI_ReleaseObj( hdc );
 521         return success;
 522     }
 523
 524     if (level == -1) level = dc->saveLevel;
 525     if ((level < 1)
 526             /* This pair of checks disagrees with MSDN "Platform SDK:
 527                Windows GDI" July 2000 which says all negative values
 528                for level will be interpreted as an instance relative
 529                to the current state.  Restricting it to just -1 does
 530                not satisfy this */
 531         || (level > dc->saveLevel))
 532     {
 533         GDI_ReleaseObj( hdc );
 534         return FALSE;
 535     }
 536
 537     success=TRUE;
 538     while (dc->saveLevel >= level)
 539     {
 540         HDC hdcs = HDC_32(dc->header.hNext);
 541         if (!(dcs = DC_GetDCPtr( hdcs )))
 542         {
 543           GDI_ReleaseObj( hdc );
 544           return FALSE;
 545         }
 546         dc->header.hNext = dcs->header.hNext;
 547         if (--dc->saveLevel < level)
 548         {
 549             SetDCState( hdc, hdcs );
 550             if (!PATH_AssignGdiPath( &dc->path, &dcs->path ))
 551                 /* FIXME: This might not be quite right, since we're
 552                  * returning FALSE but still destroying the saved DC state */
 553                 success=FALSE;
 554         }
 555         GDI_ReleaseObj( hdcs );
 556         GDI_ReleaseObj( hdc );
 557         DeleteDC( hdcs );
 558         if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
 559     }
 560     GDI_ReleaseObj( hdc );
 561     return success;
 562 }
 563
 564
 565 /***********************************************************************
 566  *           CreateDCA    (GDI32.@)
 567  */
 568 HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
 569                           const DEVMODEA *initData )
 570 {
 571     HDC hdc;
 572     DC * dc;
 573     const DC_FUNCTIONS *funcs;
 574     char buf[300];
 575
 576     GDI_CheckNotLock();
 577
 578     if (!device || !DRIVER_GetDriverName( device, buf, sizeof(buf) ))
 579     {
 580         if (!driver) return 0;
 581         strcpy(buf, driver);
 582     }
 583
 584     if (!(funcs = DRIVER_load_driver( buf )))
 585     {
 586         ERR( "no driver found for %s\n", buf );
 587         return 0;
 588     }
 589     if (!(dc = DC_AllocDC( funcs )))
 590     {
 591         DRIVER_release_driver( funcs );
 592         return 0;
 593     }
 594
 595     dc->flags   = 0;
 596     dc->hBitmap = GetStockObject( DEFAULT_BITMAP );
 597
 598     TRACE("(driver=%s, device=%s, output=%s): returning %p\n",
 599           debugstr_a(driver), debugstr_a(device), debugstr_a(output), dc->hSelf );
 600
 601     if (dc->funcs->pCreateDC &&
 602         !dc->funcs->pCreateDC( dc, &dc->physDev, buf, device, output, initData ))
 603     {
 604         WARN("creation aborted by device\n" );
 605         GDI_FreeObject( dc->hSelf, dc );
 606         DRIVER_release_driver( funcs );
 607         return 0;
 608     }
 609
 610     dc->totalExtent.left   = 0;
 611     dc->totalExtent.top    = 0;
 612     dc->totalExtent.right  = GetDeviceCaps( dc->hSelf, HORZRES );
 613     dc->totalExtent.bottom = GetDeviceCaps( dc->hSelf, VERTRES );
 614     dc->hVisRgn = CreateRectRgnIndirect( &dc->totalExtent );
 615
 616     DC_InitDC( dc );
 617     hdc = dc->hSelf;
 618     GDI_ReleaseObj( hdc );
 619     return hdc;
 620 }
 621
 622
 623 /***********************************************************************
 624  *           CreateDCW    (GDI32.@)
 625  */
 626 HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 627                           const DEVMODEW *initData )
 628 {
 629     LPSTR driverA = HEAP_strdupWtoA( GetProcessHeap(), 0, driver );
 630     LPSTR deviceA = HEAP_strdupWtoA( GetProcessHeap(), 0, device );
 631     LPSTR outputA = HEAP_strdupWtoA( GetProcessHeap(), 0, output );
 632     HDC res = CreateDCA( driverA, deviceA, outputA,
 633                             (const DEVMODEA *)initData /*FIXME*/ );
 634     HeapFree( GetProcessHeap(), 0, driverA );
 635     HeapFree( GetProcessHeap(), 0, deviceA );
 636     HeapFree( GetProcessHeap(), 0, outputA );
 637     return res;
 638 }
 639
 640
 641 /***********************************************************************
 642  *           CreateICA    (GDI32.@)
 643  */
 644 HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
 645                           const DEVMODEA* initData )
 646 {
 647       /* Nothing special yet for ICs */
 648     return CreateDCA( driver, device, output, initData );
 649 }
 650
 651
 652 /***********************************************************************
 653  *           CreateICW    (GDI32.@)
 654  */
 655 HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 656                           const DEVMODEW* initData )
 657 {
 658       /* Nothing special yet for ICs */
 659     return CreateDCW( driver, device, output, initData );
 660 }
 661
 662
 663 /***********************************************************************
 664  *           CreateCompatibleDC   (GDI32.@)
 665  */
 666 HDC WINAPI CreateCompatibleDC( HDC hdc )
 667 {
 668     DC *dc, *origDC;
 669     const DC_FUNCTIONS *funcs;
 670
 671     GDI_CheckNotLock();
 672
 673     if ((origDC = GDI_GetObjPtr( hdc, DC_MAGIC )))
 674     {
 675         funcs = origDC->funcs;
 676         GDI_ReleaseObj( hdc ); /* can't hold the lock while loading the driver */
 677         funcs = DRIVER_get_driver( funcs );
 678     }
 679     else funcs = DRIVER_load_driver( "DISPLAY" );
 680
 681     if (!funcs) return 0;
 682
 683     if (!(dc = DC_AllocDC( funcs )))
 684     {
 685         DRIVER_release_driver( funcs );
 686         return 0;
 687     }
 688
 689     TRACE("(%p): returning %p\n", hdc, dc->hSelf );
 690
 691     dc->flags        = DC_MEMORY;
 692     dc->bitsPerPixel = 1;
 693     dc->hBitmap      = GetStockObject( DEFAULT_BITMAP );
 694
 695     /* Copy the driver-specific physical device info into
 696      * the new DC. The driver may use this read-only info
 697      * while creating the compatible DC below. */
 698     if ((origDC = GDI_GetObjPtr( hdc, DC_MAGIC ))) dc->physDev = origDC->physDev;
 699
 700     if (dc->funcs->pCreateDC &&
 701         !dc->funcs->pCreateDC( dc, &dc->physDev, NULL, NULL, NULL, NULL ))
 702     {
 703         WARN("creation aborted by device\n");
 704         GDI_FreeObject( dc->hSelf, dc );
 705         if (origDC) GDI_ReleaseObj( hdc );
 706         DRIVER_release_driver( funcs );
 707         return 0;
 708     }
 709
 710     dc->totalExtent.left   = 0;
 711     dc->totalExtent.top    = 0;
 712     dc->totalExtent.right  = 1;  /* default bitmap is 1x1 */
 713     dc->totalExtent.bottom = 1;
 714     dc->hVisRgn = CreateRectRgnIndirect( &dc->totalExtent );
 715
 716     DC_InitDC( dc );
 717     GDI_ReleaseObj( dc->hSelf );
 718     if (origDC) GDI_ReleaseObj( hdc );
 719     return dc->hSelf;
 720 }
 721
 722
 723 /***********************************************************************
 724  *           DeleteDC    (GDI32.@)
 725  */
 726 BOOL WINAPI DeleteDC( HDC hdc )
 727 {
 728     const DC_FUNCTIONS *funcs = NULL;
 729     DC * dc;
 730
 731     TRACE("%p\n", hdc );
 732
 733     GDI_CheckNotLock();
 734
 735     if (!(dc = GDI_GetObjPtr( hdc, DC_MAGIC ))) return FALSE;
 736
 737     /* Call hook procedure to check whether is it OK to delete this DC */
 738     if (dc->hookThunk && !(dc->flags & (DC_SAVED | DC_MEMORY)))
 739     {
 740         DCHOOKPROC proc = dc->hookThunk;
 741         if (proc)
 742         {
 743             DWORD data = dc->dwHookData;
 744             GDI_ReleaseObj( hdc );
 745             if (!proc( HDC_16(hdc), DCHC_DELETEDC, data, 0 )) return FALSE;
 746             if (!(dc = DC_GetDCPtr( hdc ))) return TRUE;  /* deleted by the hook */
 747         }
 748     }
 749
 750     while (dc->saveLevel)
 751     {
 752         DC * dcs;
 753         HDC hdcs = HDC_32(dc->header.hNext);
 754         if (!(dcs = DC_GetDCPtr( hdcs ))) break;
 755         dc->header.hNext = dcs->header.hNext;
 756         dc->saveLevel--;
 757         if (dcs->hClipRgn) DeleteObject( dcs->hClipRgn );
 758         if (dcs->hVisRgn) DeleteObject( dcs->hVisRgn );
 759         if (dcs->hGCClipRgn) DeleteObject( dcs->hGCClipRgn );
 760         PATH_DestroyGdiPath(&dcs->path);
 761         GDI_FreeObject( hdcs, dcs );
 762     }
 763
 764     if (!(dc->flags & DC_SAVED))
 765     {
 766         SelectObject( hdc, GetStockObject(BLACK_PEN) );
 767         SelectObject( hdc, GetStockObject(WHITE_BRUSH) );
 768         SelectObject( hdc, GetStockObject(SYSTEM_FONT) );
 769         SelectObject( hdc, GetStockObject(DEFAULT_BITMAP) );
 770         funcs = dc->funcs;
 771         if (dc->funcs->pDeleteDC) dc->funcs->pDeleteDC(dc->physDev);
 772         dc->physDev = NULL;
 773     }
 774
 775     if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 776     if (dc->hVisRgn) DeleteObject( dc->hVisRgn );
 777     if (dc->hGCClipRgn) DeleteObject( dc->hGCClipRgn );
 778     PATH_DestroyGdiPath(&dc->path);
 779
 780     GDI_FreeObject( hdc, dc );
 781     if (funcs) DRIVER_release_driver( funcs );  /* do that after releasing the GDI lock */
 782     return TRUE;
 783 }
 784
 785
 786 /***********************************************************************
 787  *           ResetDCA    (GDI32.@)
 788  */
 789 HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
 790 {
 791     DC *dc;
 792     HDC ret = hdc;
 793
 794     if ((dc = DC_GetDCPtr( hdc )))
 795     {
 796         if (dc->funcs->pResetDC) ret = dc->funcs->pResetDC( dc->physDev, devmode );
 797         GDI_ReleaseObj( hdc );
 798     }
 799     return ret;
 800 }
 801
 802
 803 /***********************************************************************
 804  *           ResetDCW    (GDI32.@)
 805  */
 806 HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
 807 {
 808     return ResetDCA(hdc, (const DEVMODEA*)devmode); /* FIXME */
 809 }
 810
 811
 812 /***********************************************************************
 813  *           GetDeviceCaps    (GDI32.@)
 814  */
 815 INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
 816 {
 817     DC *dc;
 818     INT ret = 0;
 819
 820     if ((dc = DC_GetDCPtr( hdc )))
 821     {
 822         if (dc->funcs->pGetDeviceCaps) ret = dc->funcs->pGetDeviceCaps( dc->physDev, cap );
 823         GDI_ReleaseObj( hdc );
 824     }
 825     return ret;
 826 }
 827
 828
 829 /***********************************************************************
 830  *           SetBkColor    (GDI32.@)
 831  */
 832 COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
 833 {
 834     COLORREF oldColor;
 835     DC * dc = DC_GetDCPtr( hdc );
 836
 837     if (!dc) return CLR_INVALID;
 838     oldColor = dc->backgroundColor;
 839     if (dc->funcs->pSetBkColor)
 840     {
 841         color = dc->funcs->pSetBkColor(dc->physDev, color);
 842         if (color == CLR_INVALID)  /* don't change it */
 843         {
 844             color = oldColor;
 845             oldColor = CLR_INVALID;
 846         }
 847     }
 848     dc->backgroundColor = color;
 849     GDI_ReleaseObj( hdc );
 850     return oldColor;
 851 }
 852
 853
 854 /***********************************************************************
 855  *           SetTextColor    (GDI32.@)
 856  */
 857 COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
 858 {
 859     COLORREF oldColor;
 860     DC * dc = DC_GetDCPtr( hdc );
 861
 862     if (!dc) return CLR_INVALID;
 863     oldColor = dc->textColor;
 864     if (dc->funcs->pSetTextColor)
 865     {
 866         color = dc->funcs->pSetTextColor(dc->physDev, color);
 867         if (color == CLR_INVALID)  /* don't change it */
 868         {
 869             color = oldColor;
 870             oldColor = CLR_INVALID;
 871         }
 872     }
 873     dc->textColor = color;
 874     GDI_ReleaseObj( hdc );
 875     return oldColor;
 876 }
 877
 878
 879 /***********************************************************************
 880  *           SetTextAlign    (GDI32.@)
 881  */
 882 UINT WINAPI SetTextAlign( HDC hdc, UINT align )
 883 {
 884     UINT prevAlign;
 885     DC *dc = DC_GetDCPtr( hdc );
 886     if (!dc) return 0x0;
 887     if (dc->funcs->pSetTextAlign)
 888         prevAlign = dc->funcs->pSetTextAlign(dc->physDev, align);
 889     else {
 890         prevAlign = dc->textAlign;
 891         dc->textAlign = align;
 892     }
 893     GDI_ReleaseObj( hdc );
 894     return prevAlign;
 895 }
 896
 897 /***********************************************************************
 898  *           GetDCOrgEx  (GDI32.@)
 899  */
 900 BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
 901 {
 902     DC * dc;
 903
 904     if (!lpp) return FALSE;
 905     if (!(dc = DC_GetDCPtr( hDC ))) return FALSE;
 906
 907     lpp->x = lpp->y = 0;
 908     if (dc->funcs->pGetDCOrgEx) dc->funcs->pGetDCOrgEx( dc->physDev, lpp );
 909     GDI_ReleaseObj( hDC );
 910     return TRUE;
 911 }
 912
 913
 914 /***********************************************************************
 915  *           SetDCOrg   (GDI.117)
 916  */
 917 DWORD WINAPI SetDCOrg16( HDC16 hdc16, INT16 x, INT16 y )
 918 {
 919     DWORD prevOrg = 0;
 920     HDC hdc = HDC_32( hdc16 );
 921     DC *dc = DC_GetDCPtr( hdc );
 922     if (!dc) return 0;
 923     if (dc->funcs->pSetDCOrg) prevOrg = dc->funcs->pSetDCOrg( dc->physDev, x, y );
 924     GDI_ReleaseObj( hdc );
 925     return prevOrg;
 926 }
 927
 928
 929 /***********************************************************************
 930  *           SetGraphicsMode    (GDI32.@)
 931  */
 932 INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
 933 {
 934     INT ret = 0;
 935     DC *dc = DC_GetDCPtr( hdc );
 936
 937     /* One would think that setting the graphics mode to GM_COMPATIBLE
 938      * would also reset the world transformation matrix to the unity
 939      * matrix. However, in Windows, this is not the case. This doesn't
 940      * make a lot of sense to me, but that's the way it is.
 941      */
 942     if (!dc) return 0;
 943     if ((mode > 0) && (mode <= GM_LAST))
 944     {
 945         ret = dc->GraphicsMode;
 946         dc->GraphicsMode = mode;
 947     }
 948     GDI_ReleaseObj( hdc );
 949     return ret;
 950 }
 951
 952
 953 /***********************************************************************
 954  *           SetArcDirection    (GDI32.@)
 955  */
 956 INT WINAPI SetArcDirection( HDC hdc, INT nDirection )
 957 {
 958     DC * dc;
 959     INT nOldDirection = 0;
 960
 961     if (nDirection!=AD_COUNTERCLOCKWISE && nDirection!=AD_CLOCKWISE)
 962     {
 963         SetLastError(ERROR_INVALID_PARAMETER);
 964         return 0;
 965     }
 966
 967     if ((dc = DC_GetDCPtr( hdc )))
 968     {
 969         nOldDirection = dc->ArcDirection;
 970         dc->ArcDirection = nDirection;
 971         GDI_ReleaseObj( hdc );
 972     }
 973     return nOldDirection;
 974 }
 975
 976
 977 /***********************************************************************
 978  *           GetWorldTransform    (GDI32.@)
 979  */
 980 BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
 981 {
 982     DC * dc;
 983     if (!xform) return FALSE;
 984     if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
 985     *xform = dc->xformWorld2Wnd;
 986     GDI_ReleaseObj( hdc );
 987     return TRUE;
 988 }
 989
 990
 991 /***********************************************************************
 992  *           GetTransform    (GDI32.@)
 993  */
 994 BOOL WINAPI GetTransform( HDC hdc, DWORD unknown, LPXFORM xform )
 995 {
 996     if (unknown == 0x0203) return GetWorldTransform( hdc, xform );
 997     ERR("stub: don't know what to do for code %lx\n", unknown );
 998     return FALSE;
 999 }
1000
1001
1002 /***********************************************************************
1003  *           SetWorldTransform    (GDI32.@)
1004  */
1005 BOOL WINAPI SetWorldTransform( HDC hdc, const XFORM *xform )
1006 {
1007     BOOL ret = FALSE;
1008     DC *dc = DC_GetDCPtr( hdc );
1009
1010     if (!dc) return FALSE;
1011     if (!xform) goto done;
1012
1013     /* Check that graphics mode is GM_ADVANCED */
1014     if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1015
1016     dc->xformWorld2Wnd = *xform;
1017     DC_UpdateXforms( dc );
1018     ret = TRUE;
1019  done:
1020     GDI_ReleaseObj( hdc );
1021     return ret;
1022 }
1023
1024
1025 /****************************************************************************
1026  * ModifyWorldTransform [GDI32.@]
1027  * Modifies the world transformation for a device context.
1028  *
1029  * PARAMS
1030  *    hdc   [I] Handle to device context
1031  *    xform [I] XFORM structure that will be used to modify the world
1032  *              transformation
1033  *    iMode [I] Specifies in what way to modify the world transformation
1034  *              Possible values:
1035  *              MWT_IDENTITY
1036  *                 Resets the world transformation to the identity matrix.
1037  *                 The parameter xform is ignored.
1038  *              MWT_LEFTMULTIPLY
1039  *                 Multiplies xform into the world transformation matrix from
1040  *                 the left.
1041  *              MWT_RIGHTMULTIPLY
1042  *                 Multiplies xform into the world transformation matrix from
1043  *                 the right.
1044  *
1045  * RETURNS STD
1046  */
1047 BOOL WINAPI ModifyWorldTransform( HDC hdc, const XFORM *xform,
1048     DWORD iMode )
1049 {
1050     BOOL ret = FALSE;
1051     DC *dc = DC_GetDCPtr( hdc );
1052
1053     /* Check for illegal parameters */
1054     if (!dc) return FALSE;
1055     if (!xform) goto done;
1056
1057     /* Check that graphics mode is GM_ADVANCED */
1058     if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1059
1060     switch (iMode)
1061     {
1062         case MWT_IDENTITY:
1063             dc->xformWorld2Wnd.eM11 = 1.0f;
1064             dc->xformWorld2Wnd.eM12 = 0.0f;
1065             dc->xformWorld2Wnd.eM21 = 0.0f;
1066             dc->xformWorld2Wnd.eM22 = 1.0f;
1067             dc->xformWorld2Wnd.eDx  = 0.0f;
1068             dc->xformWorld2Wnd.eDy  = 0.0f;
1069             break;
1070         case MWT_LEFTMULTIPLY:
1071             CombineTransform( &dc->xformWorld2Wnd, xform,
1072                 &dc->xformWorld2Wnd );
1073             break;
1074         case MWT_RIGHTMULTIPLY:
1075             CombineTransform( &dc->xformWorld2Wnd, &dc->xformWorld2Wnd,
1076                 xform );
1077             break;
1078         default:
1079             goto done;
1080     }
1081
1082     DC_UpdateXforms( dc );
1083     ret = TRUE;
1084  done:
1085     GDI_ReleaseObj( hdc );
1086     return ret;
1087 }
1088
1089
1090 /****************************************************************************
1091  * CombineTransform [GDI32.@]
1092  * Combines two transformation matrices.
1093  *
1094  * PARAMS
1095  *    xformResult [O] Stores the result of combining the two matrices
1096  *    xform1      [I] Specifies the first matrix to apply
1097  *    xform2      [I] Specifies the second matrix to apply
1098  *
1099  * REMARKS
1100  *    The same matrix can be passed in for more than one of the parameters.
1101  *
1102  * RETURNS STD
1103  */
1104 BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1105     const XFORM *xform2 )
1106 {
1107     XFORM xformTemp;
1108
1109     /* Check for illegal parameters */
1110     if (!xformResult || !xform1 || !xform2)
1111         return FALSE;
1112
1113     /* Create the result in a temporary XFORM, since xformResult may be
1114      * equal to xform1 or xform2 */
1115     xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1116                      xform1->eM12 * xform2->eM21;
1117     xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1118                      xform1->eM12 * xform2->eM22;
1119     xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1120                      xform1->eM22 * xform2->eM21;
1121     xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1122                      xform1->eM22 * xform2->eM22;
1123     xformTemp.eDx  = xform1->eDx  * xform2->eM11 +
1124                      xform1->eDy  * xform2->eM21 +
1125                      xform2->eDx;
1126     xformTemp.eDy  = xform1->eDx  * xform2->eM12 +
1127                      xform1->eDy  * xform2->eM22 +
1128                      xform2->eDy;
1129
1130     /* Copy the result to xformResult */
1131     *xformResult = xformTemp;
1132
1133     return TRUE;
1134 }
1135
1136
1137 /***********************************************************************
1138  *           SetDCHook   (GDI32.@)
1139  *
1140  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1141  */
1142 BOOL WINAPI SetDCHook( HDC hdc, DCHOOKPROC hookProc, DWORD dwHookData )
1143 {
1144     DC *dc = DC_GetDCPtr( hdc );
1145
1146     if (!dc) return FALSE;
1147     dc->dwHookData = dwHookData;
1148     dc->hookThunk = hookProc;
1149     GDI_ReleaseObj( hdc );
1150     return TRUE;
1151 }
1152
1153
1154 /* relay function to call the 16-bit DC hook proc */
1155 static BOOL16 WINAPI call_dc_hook16( HDC16 hdc16, WORD code, DWORD data, LPARAM lParam )
1156 {
1157     WORD args[6];
1158     DWORD ret;
1159     FARPROC16 proc = NULL;
1160     HDC hdc = HDC_32( hdc16 );
1161     DC *dc = DC_GetDCPtr( hdc );
1162
1163     if (!dc) return FALSE;
1164     proc = dc->hookProc;
1165     GDI_ReleaseObj( hdc );
1166     if (!proc) return FALSE;
1167     args[5] = hdc16;
1168     args[4] = code;
1169     args[3] = HIWORD(data);
1170     args[2] = LOWORD(data);
1171     args[1] = HIWORD(lParam);
1172     args[0] = LOWORD(lParam);
1173     WOWCallback16Ex( (DWORD)proc, WCB16_PASCAL, sizeof(args), args, &ret );
1174     return LOWORD(ret);
1175 }
1176
1177 /***********************************************************************
1178  *           SetDCHook   (GDI.190)
1179  */
1180 BOOL16 WINAPI SetDCHook16( HDC16 hdc16, FARPROC16 hookProc, DWORD dwHookData )
1181 {
1182     HDC hdc = HDC_32( hdc16 );
1183     DC *dc = DC_GetDCPtr( hdc );
1184     if (!dc) return FALSE;
1185
1186     dc->hookProc = hookProc;
1187     GDI_ReleaseObj( hdc );
1188     return SetDCHook( hdc, call_dc_hook16, dwHookData );
1189 }
1190
1191
1192 /***********************************************************************
1193  *           GetDCHook   (GDI.191)
1194  */
1195 DWORD WINAPI GetDCHook16( HDC16 hdc16, FARPROC16 *phookProc )
1196 {
1197     HDC hdc = HDC_32( hdc16 );
1198     DC *dc = DC_GetDCPtr( hdc );
1199     DWORD ret;
1200
1201     if (!dc) return 0;
1202     *phookProc = dc->hookProc;
1203     ret = dc->dwHookData;
1204     GDI_ReleaseObj( hdc );
1205     return ret;
1206 }
1207
1208
1209 /***********************************************************************
1210  *           SetHookFlags   (GDI.192)
1211  */
1212 WORD WINAPI SetHookFlags16(HDC16 hdc16, WORD flags)
1213 {
1214     HDC hdc = HDC_32( hdc16 );
1215     DC *dc = DC_GetDCPtr( hdc );
1216
1217     if( dc )
1218     {
1219         WORD wRet = dc->flags & DC_DIRTY;
1220
1221         /* "Undocumented Windows" info is slightly confusing.
1222          */
1223
1224         TRACE("hDC %p, flags %04x\n",hdc,flags);
1225
1226         if( flags & DCHF_INVALIDATEVISRGN )
1227             dc->flags |= DC_DIRTY;
1228         else if( flags & DCHF_VALIDATEVISRGN || !flags )
1229             dc->flags &= ~DC_DIRTY;
1230         GDI_ReleaseObj( hdc );
1231         return wRet;
1232     }
1233     return 0;
1234 }
1235
1236 /***********************************************************************
1237  *           SetICMMode    (GDI32.@)
1238  */
1239 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1240 {
1241 /*FIXME  Asuming that ICM is always off, and cannot be turned on */
1242     if (iEnableICM == ICM_OFF) return ICM_OFF;
1243     if (iEnableICM == ICM_ON) return 0;
1244     if (iEnableICM == ICM_QUERY) return ICM_OFF;
1245     return 0;
1246 }
1247
1248 /***********************************************************************
1249  *           GetDeviceGammaRamp    (GDI32.@)
1250  */
1251 BOOL WINAPI GetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1252 {
1253     BOOL ret = FALSE;
1254     DC *dc = DC_GetDCPtr( hDC );
1255
1256     if( dc )
1257     {
1258         if (dc->funcs->pGetDeviceGammaRamp)
1259             ret = dc->funcs->pGetDeviceGammaRamp(dc->physDev, ptr);
1260         GDI_ReleaseObj( hDC );
1261     }
1262     return ret;
1263 }
1264
1265 /***********************************************************************
1266  *           SetDeviceGammaRamp    (GDI32.@)
1267  */
1268 BOOL WINAPI SetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1269 {
1270     BOOL ret = FALSE;
1271     DC *dc = DC_GetDCPtr( hDC );
1272
1273     if( dc )
1274     {
1275         if (dc->funcs->pSetDeviceGammaRamp)
1276             ret = dc->funcs->pSetDeviceGammaRamp(dc->physDev, ptr);
1277         GDI_ReleaseObj( hDC );
1278     }
1279     return ret;
1280 }
1281
1282 /***********************************************************************
1283  *           GetColorSpace    (GDI32.@)
1284  */
1285 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1286 {
1287 /*FIXME    Need to to whatever GetColorSpace actually does */
1288     return 0;
1289 }
1290
1291 /***********************************************************************
1292  *           CreateColorSpaceA    (GDI32.@)
1293  */
1294 HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
1295 {
1296   FIXME( "stub\n" );
1297   return 0;
1298 }
1299
1300 /***********************************************************************
1301  *           CreateColorSpaceW    (GDI32.@)
1302  */
1303 HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
1304 {
1305   FIXME( "stub\n" );
1306   return 0;
1307 }
1308
1309 /***********************************************************************
1310  *           DeleteColorSpace     (GDI32.@)
1311  */
1312 BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
1313 {
1314   FIXME( "stub\n" );
1315
1316   return TRUE;
1317 }
1318
1319 /***********************************************************************
1320  *           SetColorSpace     (GDI32.@)
1321  */
1322 HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
1323 {
1324   FIXME( "stub\n" );
1325
1326   return hColorSpace;
1327 }
1328
1329 /***********************************************************************
1330  *           GetBoundsRect    (GDI.194)
1331  */
1332 UINT16 WINAPI GetBoundsRect16(HDC16 hdc, LPRECT16 rect, UINT16 flags)
1333 {
1334     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1335 }
1336
1337 /***********************************************************************
1338  *           GetBoundsRect    (GDI32.@)
1339  */
1340 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1341 {
1342     FIXME("(): stub\n");
1343     return DCB_RESET;   /* bounding rectangle always empty */
1344 }
1345
1346 /***********************************************************************
1347  *           SetBoundsRect    (GDI.193)
1348  */
1349 UINT16 WINAPI SetBoundsRect16(HDC16 hdc, const RECT16* rect, UINT16 flags)
1350 {
1351     if ( (flags & DCB_ACCUMULATE) || (flags & DCB_ENABLE) )
1352         FIXME("(%04x, %p, %04x): stub\n", hdc, rect, flags );
1353
1354     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1355 }
1356
1357 /***********************************************************************
1358  *           SetBoundsRect    (GDI32.@)
1359  */
1360 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1361 {
1362     FIXME("(): stub\n");
1363     return DCB_DISABLE;   /* bounding rectangle always empty */
1364 }
1365
1366
1367 /***********************************************************************
1368  *              GetRelAbs               (GDI32.@)
1369  */
1370 INT WINAPI GetRelAbs( HDC hdc, DWORD dwIgnore )
1371 {
1372     INT ret = 0;
1373     DC *dc = DC_GetDCPtr( hdc );
1374     if (dc) ret = dc->relAbsMode;
1375     GDI_ReleaseObj( hdc );
1376     return ret;
1377 }
1378
1379 /***********************************************************************
1380  *           GetLayout    (GDI32.@)
1381  *
1382  * Gets left->right or right->left text layout flags of a dc.
1383  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1384  *
1385  */
1386 DWORD WINAPI GetLayout(HDC hdc)
1387 {
1388     FIXME("(%p): stub\n", hdc);
1389     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1390     return 0;
1391 }
1392
1393 /***********************************************************************
1394  *           SetLayout    (GDI32.@)
1395  *
1396  * Sets left->right or right->left text layout flags of a dc.
1397  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1398  *
1399  */
1400 DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
1401 {
1402     FIXME("(%p,%08lx): stub\n", hdc, layout);
1403     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1404     return 0;
1405 }
1406
1407 /***********************************************************************
1408  *           SetDCBrushColor    (GDI32.@)
1409  *
1410  * Sets the current device context (DC) brush color to the specified
1411  * color value. If the device cannot represent the specified color
1412  * value, the color is set to the nearest physical color.
1413  *
1414  */
1415 COLORREF WINAPI SetDCBrushColor(HDC hdc, COLORREF crColor)
1416 {
1417     FIXME("(%p, %08lx): stub\n", hdc, crColor);
1418     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1419     return CLR_INVALID;
1420 }
1421
1422 /***********************************************************************
1423  *           SetVirtualResolution   (GDI32.@)
1424  *
1425  * Undocumented on msdn.  Called when powerpoint xp saves a file.
1426  */
1427 DWORD WINAPI SetVirtualResolution(HDC hdc, DWORD dw2, DWORD dw3, DWORD dw4, DWORD dw5)
1428 {
1429     FIXME("(%p %08lx %08lx %08lx %08lx): stub!\n", hdc, dw2, dw3, dw4, dw5);
1430     return FALSE;
1431 }