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, WORD magic )
  52 {
  53     HDC hdc;
  54     DC *dc;
  55
  56     if (!(dc = GDI_AllocObject( sizeof(*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) == MEMORY_DC_MAGIC) ||
 134         (GDIMAGIC(ptr->wMagic) == METAFILE_DC_MAGIC) ||
 135         (GDIMAGIC(ptr->wMagic) == ENHMETAFILE_DC_MAGIC))
 136         return (DC *)ptr;
 137     GDI_ReleaseObj( hdc );
 138     SetLastError( ERROR_INVALID_HANDLE );
 139     return NULL;
 140 }
 141
 142 /***********************************************************************
 143  *           DC_GetDCUpdate
 144  *
 145  * Retrieve a DC ptr while making sure the visRgn is updated.
 146  * This function may call up to USER so the GDI lock should _not_
 147  * be held when calling it.
 148  */
 149 DC *DC_GetDCUpdate( HDC hdc )
 150 {
 151     DC *dc = DC_GetDCPtr( hdc );
 152     if (!dc) return NULL;
 153     while (dc->flags & DC_DIRTY)
 154     {
 155         DCHOOKPROC proc = dc->hookThunk;
 156         dc->flags &= ~DC_DIRTY;
 157         if (proc)
 158         {
 159             DWORD data = dc->dwHookData;
 160             GDI_ReleaseObj( hdc );
 161             proc( HDC_16(hdc), DCHC_INVALIDVISRGN, data, 0 );
 162             if (!(dc = DC_GetDCPtr( hdc ))) break;
 163             /* otherwise restart the loop in case it became dirty again in the meantime */
 164         }
 165     }
 166     return dc;
 167 }
 168
 169
 170 /***********************************************************************
 171  *           DC_DeleteObject
 172  */
 173 static BOOL DC_DeleteObject( HGDIOBJ handle, void *obj )
 174 {
 175     GDI_ReleaseObj( handle );
 176     return DeleteDC( handle );
 177 }
 178
 179
 180 /***********************************************************************
 181  *           DC_InitDC
 182  *
 183  * Setup device-specific DC values for a newly created DC.
 184  */
 185 void DC_InitDC( DC* dc )
 186 {
 187     if (dc->funcs->pRealizeDefaultPalette) dc->funcs->pRealizeDefaultPalette( dc->physDev );
 188     SetTextColor( dc->hSelf, dc->textColor );
 189     SetBkColor( dc->hSelf, dc->backgroundColor );
 190     SelectObject( dc->hSelf, dc->hPen );
 191     SelectObject( dc->hSelf, dc->hBrush );
 192     SelectObject( dc->hSelf, dc->hFont );
 193     CLIPPING_UpdateGCRegion( dc );
 194 }
 195
 196
 197 /***********************************************************************
 198  *           DC_InvertXform
 199  *
 200  * Computes the inverse of the transformation xformSrc and stores it to
 201  * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
 202  * is singular.
 203  */
 204 static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
 205 {
 206     FLOAT determinant;
 207
 208     determinant = xformSrc->eM11*xformSrc->eM22 -
 209         xformSrc->eM12*xformSrc->eM21;
 210     if (determinant > -1e-12 && determinant < 1e-12)
 211         return FALSE;
 212
 213     xformDest->eM11 =  xformSrc->eM22 / determinant;
 214     xformDest->eM12 = -xformSrc->eM12 / determinant;
 215     xformDest->eM21 = -xformSrc->eM21 / determinant;
 216     xformDest->eM22 =  xformSrc->eM11 / determinant;
 217     xformDest->eDx  = -xformSrc->eDx * xformDest->eM11 -
 218                        xformSrc->eDy * xformDest->eM21;
 219     xformDest->eDy  = -xformSrc->eDx * xformDest->eM12 -
 220                        xformSrc->eDy * xformDest->eM22;
 221
 222     return TRUE;
 223 }
 224
 225
 226 /***********************************************************************
 227  *           DC_UpdateXforms
 228  *
 229  * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
 230  * fields of the specified DC by creating a transformation that
 231  * represents the current mapping mode and combining it with the DC's
 232  * world transform. This function should be called whenever the
 233  * parameters associated with the mapping mode (window and viewport
 234  * extents and origins) or the world transform change.
 235  */
 236 void DC_UpdateXforms( DC *dc )
 237 {
 238     XFORM xformWnd2Vport;
 239     FLOAT scaleX, scaleY;
 240
 241     /* Construct a transformation to do the window-to-viewport conversion */
 242     scaleX = (FLOAT)dc->vportExtX / (FLOAT)dc->wndExtX;
 243     scaleY = (FLOAT)dc->vportExtY / (FLOAT)dc->wndExtY;
 244     xformWnd2Vport.eM11 = scaleX;
 245     xformWnd2Vport.eM12 = 0.0;
 246     xformWnd2Vport.eM21 = 0.0;
 247     xformWnd2Vport.eM22 = scaleY;
 248     xformWnd2Vport.eDx  = (FLOAT)dc->vportOrgX -
 249         scaleX * (FLOAT)dc->wndOrgX;
 250     xformWnd2Vport.eDy  = (FLOAT)dc->vportOrgY -
 251         scaleY * (FLOAT)dc->wndOrgY;
 252
 253     /* Combine with the world transformation */
 254     CombineTransform( &dc->xformWorld2Vport, &dc->xformWorld2Wnd,
 255         &xformWnd2Vport );
 256
 257     /* Create inverse of world-to-viewport transformation */
 258     dc->vport2WorldValid = DC_InvertXform( &dc->xformWorld2Vport,
 259         &dc->xformVport2World );
 260 }
 261
 262
 263 /***********************************************************************
 264  *           GetDCState   (Not a Windows API)
 265  */
 266 HDC WINAPI GetDCState( HDC hdc )
 267 {
 268     DC * newdc, * dc;
 269     HGDIOBJ handle;
 270
 271     if (!(dc = DC_GetDCPtr( hdc ))) return 0;
 272     if (!(newdc = GDI_AllocObject( sizeof(DC), GDIMAGIC(dc->header.wMagic), &handle, &dc_funcs )))
 273     {
 274       GDI_ReleaseObj( hdc );
 275       return 0;
 276     }
 277     TRACE("(%p): returning %p\n", hdc, handle );
 278
 279     newdc->flags            = dc->flags | DC_SAVED;
 280     newdc->hPen             = dc->hPen;
 281     newdc->hBrush           = dc->hBrush;
 282     newdc->hFont            = dc->hFont;
 283     newdc->hBitmap          = dc->hBitmap;
 284     newdc->hDevice          = dc->hDevice;
 285     newdc->hPalette         = dc->hPalette;
 286     newdc->totalExtent      = dc->totalExtent;
 287     newdc->bitsPerPixel     = dc->bitsPerPixel;
 288     newdc->ROPmode          = dc->ROPmode;
 289     newdc->polyFillMode     = dc->polyFillMode;
 290     newdc->stretchBltMode   = dc->stretchBltMode;
 291     newdc->relAbsMode       = dc->relAbsMode;
 292     newdc->backgroundMode   = dc->backgroundMode;
 293     newdc->backgroundColor  = dc->backgroundColor;
 294     newdc->textColor        = dc->textColor;
 295     newdc->brushOrgX        = dc->brushOrgX;
 296     newdc->brushOrgY        = dc->brushOrgY;
 297     newdc->textAlign        = dc->textAlign;
 298     newdc->charExtra        = dc->charExtra;
 299     newdc->breakTotalExtra  = dc->breakTotalExtra;
 300     newdc->breakCount       = dc->breakCount;
 301     newdc->breakExtra       = dc->breakExtra;
 302     newdc->breakRem         = dc->breakRem;
 303     newdc->MapMode          = dc->MapMode;
 304     newdc->GraphicsMode     = dc->GraphicsMode;
 305     newdc->CursPosX         = dc->CursPosX;
 306     newdc->CursPosY         = dc->CursPosY;
 307     newdc->ArcDirection     = dc->ArcDirection;
 308     newdc->xformWorld2Wnd   = dc->xformWorld2Wnd;
 309     newdc->xformWorld2Vport = dc->xformWorld2Vport;
 310     newdc->xformVport2World = dc->xformVport2World;
 311     newdc->vport2WorldValid = dc->vport2WorldValid;
 312     newdc->wndOrgX          = dc->wndOrgX;
 313     newdc->wndOrgY          = dc->wndOrgY;
 314     newdc->wndExtX          = dc->wndExtX;
 315     newdc->wndExtY          = dc->wndExtY;
 316     newdc->vportOrgX        = dc->vportOrgX;
 317     newdc->vportOrgY        = dc->vportOrgY;
 318     newdc->vportExtX        = dc->vportExtX;
 319     newdc->vportExtY        = dc->vportExtY;
 320
 321     newdc->hSelf = (HDC)handle;
 322     newdc->saveLevel = 0;
 323
 324     PATH_InitGdiPath( &newdc->path );
 325
 326     newdc->pAbortProc = NULL;
 327     newdc->hookThunk  = NULL;
 328     newdc->hookProc   = 0;
 329
 330     /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
 331
 332     newdc->hGCClipRgn = newdc->hVisRgn = 0;
 333     if (dc->hClipRgn)
 334     {
 335         newdc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 336         CombineRgn( newdc->hClipRgn, dc->hClipRgn, 0, RGN_COPY );
 337     }
 338     else
 339         newdc->hClipRgn = 0;
 340
 341     if(dc->gdiFont) {
 342         newdc->gdiFont = dc->gdiFont;
 343     } else
 344         newdc->gdiFont = 0;
 345
 346     GDI_ReleaseObj( handle );
 347     GDI_ReleaseObj( hdc );
 348     return handle;
 349 }
 350
 351
 352 /***********************************************************************
 353  *           SetDCState   (Not a Windows API)
 354  */
 355 void WINAPI SetDCState( HDC hdc, HDC hdcs )
 356 {
 357     DC *dc, *dcs;
 358
 359     if (!(dc = DC_GetDCUpdate( hdc ))) return;
 360     if (!(dcs = DC_GetDCPtr( hdcs )))
 361     {
 362       GDI_ReleaseObj( hdc );
 363       return;
 364     }
 365     if (!dcs->flags & DC_SAVED)
 366     {
 367       GDI_ReleaseObj( hdc );
 368       GDI_ReleaseObj( hdcs );
 369       return;
 370     }
 371     TRACE("%p %p\n", hdc, hdcs );
 372
 373     dc->flags            = dcs->flags & ~(DC_SAVED | DC_DIRTY);
 374     dc->hDevice          = dcs->hDevice;
 375     dc->totalExtent      = dcs->totalExtent;
 376     dc->ROPmode          = dcs->ROPmode;
 377     dc->polyFillMode     = dcs->polyFillMode;
 378     dc->stretchBltMode   = dcs->stretchBltMode;
 379     dc->relAbsMode       = dcs->relAbsMode;
 380     dc->backgroundMode   = dcs->backgroundMode;
 381     dc->backgroundColor  = dcs->backgroundColor;
 382     dc->textColor        = dcs->textColor;
 383     dc->brushOrgX        = dcs->brushOrgX;
 384     dc->brushOrgY        = dcs->brushOrgY;
 385     dc->textAlign        = dcs->textAlign;
 386     dc->charExtra        = dcs->charExtra;
 387     dc->breakTotalExtra  = dcs->breakTotalExtra;
 388     dc->breakCount       = dcs->breakCount;
 389     dc->breakExtra       = dcs->breakExtra;
 390     dc->breakRem         = dcs->breakRem;
 391     dc->MapMode          = dcs->MapMode;
 392     dc->GraphicsMode     = dcs->GraphicsMode;
 393     dc->CursPosX         = dcs->CursPosX;
 394     dc->CursPosY         = dcs->CursPosY;
 395     dc->ArcDirection     = dcs->ArcDirection;
 396     dc->xformWorld2Wnd   = dcs->xformWorld2Wnd;
 397     dc->xformWorld2Vport = dcs->xformWorld2Vport;
 398     dc->xformVport2World = dcs->xformVport2World;
 399     dc->vport2WorldValid = dcs->vport2WorldValid;
 400
 401     dc->wndOrgX          = dcs->wndOrgX;
 402     dc->wndOrgY          = dcs->wndOrgY;
 403     dc->wndExtX          = dcs->wndExtX;
 404     dc->wndExtY          = dcs->wndExtY;
 405     dc->vportOrgX        = dcs->vportOrgX;
 406     dc->vportOrgY        = dcs->vportOrgY;
 407     dc->vportExtX        = dcs->vportExtX;
 408     dc->vportExtY        = dcs->vportExtY;
 409
 410     if (GDIMAGIC(dc->header.wMagic) != MEMORY_DC_MAGIC) dc->bitsPerPixel = dcs->bitsPerPixel;
 411
 412     if (dcs->hClipRgn)
 413     {
 414         if (!dc->hClipRgn) dc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 415         CombineRgn( dc->hClipRgn, dcs->hClipRgn, 0, RGN_COPY );
 416     }
 417     else
 418     {
 419         if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 420         dc->hClipRgn = 0;
 421     }
 422     CLIPPING_UpdateGCRegion( dc );
 423
 424     SelectObject( hdc, dcs->hBitmap );
 425     SelectObject( hdc, dcs->hBrush );
 426     SelectObject( hdc, dcs->hFont );
 427     SelectObject( hdc, dcs->hPen );
 428     SetBkColor( hdc, dcs->backgroundColor);
 429     SetTextColor( hdc, dcs->textColor);
 430     GDISelectPalette( hdc, dcs->hPalette, FALSE );
 431     GDI_ReleaseObj( hdcs );
 432     GDI_ReleaseObj( hdc );
 433 }
 434
 435
 436 /***********************************************************************
 437  *           GetDCState   (GDI.179)
 438  */
 439 HDC16 WINAPI GetDCState16( HDC16 hdc )
 440 {
 441     return HDC_16( GetDCState( HDC_32(hdc) ));
 442 }
 443
 444
 445 /***********************************************************************
 446  *           SetDCState   (GDI.180)
 447  */
 448 void WINAPI SetDCState16( HDC16 hdc, HDC16 hdcs )
 449 {
 450     SetDCState( HDC_32(hdc), HDC_32(hdcs) );
 451 }
 452
 453
 454 /***********************************************************************
 455  *           SaveDC    (GDI32.@)
 456  */
 457 INT WINAPI SaveDC( HDC hdc )
 458 {
 459     HDC hdcs;
 460     DC * dc, * dcs;
 461     INT ret;
 462
 463     dc = DC_GetDCPtr( hdc );
 464     if (!dc) return 0;
 465
 466     if(dc->funcs->pSaveDC)
 467     {
 468         ret = dc->funcs->pSaveDC( dc->physDev );
 469         GDI_ReleaseObj( hdc );
 470         return ret;
 471     }
 472
 473     if (!(hdcs = GetDCState( hdc )))
 474     {
 475       GDI_ReleaseObj( hdc );
 476       return 0;
 477     }
 478     dcs = DC_GetDCPtr( hdcs );
 479
 480     /* Copy path. The reason why path saving / restoring is in SaveDC/
 481      * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
 482      * functions are only in Win16 (which doesn't have paths) and that
 483      * SetDCState doesn't allow us to signal an error (which can happen
 484      * when copying paths).
 485      */
 486     if (!PATH_AssignGdiPath( &dcs->path, &dc->path ))
 487     {
 488         GDI_ReleaseObj( hdc );
 489         GDI_ReleaseObj( hdcs );
 490         DeleteDC( hdcs );
 491         return 0;
 492     }
 493
 494     dcs->header.hNext = dc->header.hNext;
 495     dc->header.hNext = HDC_16(hdcs);
 496     TRACE("(%p): returning %d\n", hdc, dc->saveLevel+1 );
 497     ret = ++dc->saveLevel;
 498     GDI_ReleaseObj( hdcs );
 499     GDI_ReleaseObj( hdc );
 500     return ret;
 501 }
 502
 503
 504 /***********************************************************************
 505  *           RestoreDC    (GDI32.@)
 506  */
 507 BOOL WINAPI RestoreDC( HDC hdc, INT level )
 508 {
 509     DC * dc, * dcs;
 510     BOOL success;
 511
 512     TRACE("%p %d\n", hdc, level );
 513     dc = DC_GetDCUpdate( hdc );
 514     if(!dc) return FALSE;
 515     if(dc->funcs->pRestoreDC)
 516     {
 517         success = dc->funcs->pRestoreDC( dc->physDev, level );
 518         GDI_ReleaseObj( hdc );
 519         return success;
 520     }
 521
 522     if (level == -1) level = dc->saveLevel;
 523     if ((level < 1)
 524             /* This pair of checks disagrees with MSDN "Platform SDK:
 525                Windows GDI" July 2000 which says all negative values
 526                for level will be interpreted as an instance relative
 527                to the current state.  Restricting it to just -1 does
 528                not satisfy this */
 529         || (level > dc->saveLevel))
 530     {
 531         GDI_ReleaseObj( hdc );
 532         return FALSE;
 533     }
 534
 535     success=TRUE;
 536     while (dc->saveLevel >= level)
 537     {
 538         HDC hdcs = HDC_32(dc->header.hNext);
 539         if (!(dcs = DC_GetDCPtr( hdcs )))
 540         {
 541           GDI_ReleaseObj( hdc );
 542           return FALSE;
 543         }
 544         dc->header.hNext = dcs->header.hNext;
 545         if (--dc->saveLevel < level)
 546         {
 547             SetDCState( hdc, hdcs );
 548             if (!PATH_AssignGdiPath( &dc->path, &dcs->path ))
 549                 /* FIXME: This might not be quite right, since we're
 550                  * returning FALSE but still destroying the saved DC state */
 551                 success=FALSE;
 552         }
 553         GDI_ReleaseObj( hdcs );
 554         GDI_ReleaseObj( hdc );
 555         DeleteDC( hdcs );
 556         if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
 557     }
 558     GDI_ReleaseObj( hdc );
 559     return success;
 560 }
 561
 562
 563 /***********************************************************************
 564  *           CreateDCA    (GDI32.@)
 565  */
 566 HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
 567                           const DEVMODEA *initData )
 568 {
 569     HDC hdc;
 570     DC * dc;
 571     const DC_FUNCTIONS *funcs;
 572     char buf[300];
 573
 574     GDI_CheckNotLock();
 575
 576     if (!device || !DRIVER_GetDriverName( device, buf, sizeof(buf) ))
 577     {
 578         if (!driver) return 0;
 579         strcpy(buf, driver);
 580     }
 581
 582     if (!(funcs = DRIVER_load_driver( buf )))
 583     {
 584         ERR( "no driver found for %s\n", buf );
 585         return 0;
 586     }
 587     if (!(dc = DC_AllocDC( funcs, DC_MAGIC )))
 588     {
 589         DRIVER_release_driver( funcs );
 590         return 0;
 591     }
 592
 593     dc->hBitmap = GetStockObject( DEFAULT_BITMAP );
 594
 595     TRACE("(driver=%s, device=%s, output=%s): returning %p\n",
 596           debugstr_a(driver), debugstr_a(device), debugstr_a(output), dc->hSelf );
 597
 598     if (dc->funcs->pCreateDC &&
 599         !dc->funcs->pCreateDC( dc, &dc->physDev, buf, device, output, initData ))
 600     {
 601         WARN("creation aborted by device\n" );
 602         GDI_FreeObject( dc->hSelf, dc );
 603         DRIVER_release_driver( funcs );
 604         return 0;
 605     }
 606
 607     dc->totalExtent.left   = 0;
 608     dc->totalExtent.top    = 0;
 609     dc->totalExtent.right  = GetDeviceCaps( dc->hSelf, HORZRES );
 610     dc->totalExtent.bottom = GetDeviceCaps( dc->hSelf, VERTRES );
 611     dc->hVisRgn = CreateRectRgnIndirect( &dc->totalExtent );
 612
 613     DC_InitDC( dc );
 614     hdc = dc->hSelf;
 615     GDI_ReleaseObj( hdc );
 616     return hdc;
 617 }
 618
 619
 620 /***********************************************************************
 621  *           CreateDCW    (GDI32.@)
 622  */
 623 HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 624                           const DEVMODEW *initData )
 625 {
 626     LPSTR driverA = HEAP_strdupWtoA( GetProcessHeap(), 0, driver );
 627     LPSTR deviceA = HEAP_strdupWtoA( GetProcessHeap(), 0, device );
 628     LPSTR outputA = HEAP_strdupWtoA( GetProcessHeap(), 0, output );
 629     HDC res = CreateDCA( driverA, deviceA, outputA,
 630                             (const DEVMODEA *)initData /*FIXME*/ );
 631     HeapFree( GetProcessHeap(), 0, driverA );
 632     HeapFree( GetProcessHeap(), 0, deviceA );
 633     HeapFree( GetProcessHeap(), 0, outputA );
 634     return res;
 635 }
 636
 637
 638 /***********************************************************************
 639  *           CreateICA    (GDI32.@)
 640  */
 641 HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
 642                           const DEVMODEA* initData )
 643 {
 644       /* Nothing special yet for ICs */
 645     return CreateDCA( driver, device, output, initData );
 646 }
 647
 648
 649 /***********************************************************************
 650  *           CreateICW    (GDI32.@)
 651  */
 652 HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 653                           const DEVMODEW* initData )
 654 {
 655       /* Nothing special yet for ICs */
 656     return CreateDCW( driver, device, output, initData );
 657 }
 658
 659
 660 /***********************************************************************
 661  *           CreateCompatibleDC   (GDI32.@)
 662  */
 663 HDC WINAPI CreateCompatibleDC( HDC hdc )
 664 {
 665     DC *dc, *origDC;
 666     const DC_FUNCTIONS *funcs;
 667     PHYSDEV physDev;
 668
 669     GDI_CheckNotLock();
 670
 671     if ((origDC = GDI_GetObjPtr( hdc, DC_MAGIC )))
 672     {
 673         funcs = origDC->funcs;
 674         physDev = origDC->physDev;
 675         GDI_ReleaseObj( hdc ); /* can't hold the lock while loading the driver */
 676         funcs = DRIVER_get_driver( funcs );
 677     }
 678     else
 679     {
 680         funcs = DRIVER_load_driver( "DISPLAY" );
 681         physDev = NULL;
 682     }
 683
 684     if (!funcs) return 0;
 685
 686     if (!(dc = DC_AllocDC( funcs, MEMORY_DC_MAGIC )))
 687     {
 688         DRIVER_release_driver( funcs );
 689         return 0;
 690     }
 691
 692     TRACE("(%p): returning %p\n", hdc, dc->hSelf );
 693
 694     dc->bitsPerPixel = 1;
 695     dc->hBitmap      = GetStockObject( DEFAULT_BITMAP );
 696
 697     /* Copy the driver-specific physical device info into
 698      * the new DC. The driver may use this read-only info
 699      * while creating the compatible DC below. */
 700     dc->physDev = physDev;
 701
 702     if (dc->funcs->pCreateDC &&
 703         !dc->funcs->pCreateDC( dc, &dc->physDev, NULL, NULL, NULL, NULL ))
 704     {
 705         WARN("creation aborted by device\n");
 706         GDI_FreeObject( dc->hSelf, dc );
 707         DRIVER_release_driver( funcs );
 708         return 0;
 709     }
 710
 711     dc->totalExtent.left   = 0;
 712     dc->totalExtent.top    = 0;
 713     dc->totalExtent.right  = 1;  /* default bitmap is 1x1 */
 714     dc->totalExtent.bottom = 1;
 715     dc->hVisRgn = CreateRectRgnIndirect( &dc->totalExtent );
 716
 717     DC_InitDC( dc );
 718     GDI_ReleaseObj( dc->hSelf );
 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 = DC_GetDCPtr( hdc ))) return FALSE;
 736
 737     /* Call hook procedure to check whether is it OK to delete this DC */
 738     if (dc->hookThunk)
 739     {
 740         DCHOOKPROC proc = dc->hookThunk;
 741         DWORD data = dc->dwHookData;
 742         GDI_ReleaseObj( hdc );
 743         if (!proc( HDC_16(hdc), DCHC_DELETEDC, data, 0 )) return FALSE;
 744         if (!(dc = DC_GetDCPtr( hdc ))) return TRUE;  /* deleted by the hook */
 745     }
 746
 747     while (dc->saveLevel)
 748     {
 749         DC * dcs;
 750         HDC hdcs = HDC_32(dc->header.hNext);
 751         if (!(dcs = DC_GetDCPtr( hdcs ))) break;
 752         dc->header.hNext = dcs->header.hNext;
 753         dc->saveLevel--;
 754         if (dcs->hClipRgn) DeleteObject( dcs->hClipRgn );
 755         if (dcs->hVisRgn) DeleteObject( dcs->hVisRgn );
 756         if (dcs->hGCClipRgn) DeleteObject( dcs->hGCClipRgn );
 757         PATH_DestroyGdiPath(&dcs->path);
 758         GDI_FreeObject( hdcs, dcs );
 759     }
 760
 761     if (!(dc->flags & DC_SAVED))
 762     {
 763         SelectObject( hdc, GetStockObject(BLACK_PEN) );
 764         SelectObject( hdc, GetStockObject(WHITE_BRUSH) );
 765         SelectObject( hdc, GetStockObject(SYSTEM_FONT) );
 766         SelectObject( hdc, GetStockObject(DEFAULT_BITMAP) );
 767         funcs = dc->funcs;
 768         if (dc->funcs->pDeleteDC) dc->funcs->pDeleteDC(dc->physDev);
 769         dc->physDev = NULL;
 770     }
 771
 772     if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 773     if (dc->hVisRgn) DeleteObject( dc->hVisRgn );
 774     if (dc->hGCClipRgn) DeleteObject( dc->hGCClipRgn );
 775     PATH_DestroyGdiPath(&dc->path);
 776
 777     GDI_FreeObject( hdc, dc );
 778     if (funcs) DRIVER_release_driver( funcs );  /* do that after releasing the GDI lock */
 779     return TRUE;
 780 }
 781
 782
 783 /***********************************************************************
 784  *           ResetDCA    (GDI32.@)
 785  */
 786 HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
 787 {
 788     DC *dc;
 789     HDC ret = hdc;
 790
 791     if ((dc = DC_GetDCPtr( hdc )))
 792     {
 793         if (dc->funcs->pResetDC) ret = dc->funcs->pResetDC( dc->physDev, devmode );
 794         GDI_ReleaseObj( hdc );
 795     }
 796     return ret;
 797 }
 798
 799
 800 /***********************************************************************
 801  *           ResetDCW    (GDI32.@)
 802  */
 803 HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
 804 {
 805     return ResetDCA(hdc, (const DEVMODEA*)devmode); /* FIXME */
 806 }
 807
 808
 809 /***********************************************************************
 810  *           GetDeviceCaps    (GDI32.@)
 811  */
 812 INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
 813 {
 814     DC *dc;
 815     INT ret = 0;
 816
 817     if ((dc = DC_GetDCPtr( hdc )))
 818     {
 819         if (dc->funcs->pGetDeviceCaps) ret = dc->funcs->pGetDeviceCaps( dc->physDev, cap );
 820         GDI_ReleaseObj( hdc );
 821     }
 822     return ret;
 823 }
 824
 825
 826 /***********************************************************************
 827  *           SetBkColor    (GDI32.@)
 828  */
 829 COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
 830 {
 831     COLORREF oldColor;
 832     DC * dc = DC_GetDCPtr( hdc );
 833
 834     if (!dc) return CLR_INVALID;
 835     oldColor = dc->backgroundColor;
 836     if (dc->funcs->pSetBkColor)
 837     {
 838         color = dc->funcs->pSetBkColor(dc->physDev, color);
 839         if (color == CLR_INVALID)  /* don't change it */
 840         {
 841             color = oldColor;
 842             oldColor = CLR_INVALID;
 843         }
 844     }
 845     dc->backgroundColor = color;
 846     GDI_ReleaseObj( hdc );
 847     return oldColor;
 848 }
 849
 850
 851 /***********************************************************************
 852  *           SetTextColor    (GDI32.@)
 853  */
 854 COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
 855 {
 856     COLORREF oldColor;
 857     DC * dc = DC_GetDCPtr( hdc );
 858
 859     if (!dc) return CLR_INVALID;
 860     oldColor = dc->textColor;
 861     if (dc->funcs->pSetTextColor)
 862     {
 863         color = dc->funcs->pSetTextColor(dc->physDev, color);
 864         if (color == CLR_INVALID)  /* don't change it */
 865         {
 866             color = oldColor;
 867             oldColor = CLR_INVALID;
 868         }
 869     }
 870     dc->textColor = color;
 871     GDI_ReleaseObj( hdc );
 872     return oldColor;
 873 }
 874
 875
 876 /***********************************************************************
 877  *           SetTextAlign    (GDI32.@)
 878  */
 879 UINT WINAPI SetTextAlign( HDC hdc, UINT align )
 880 {
 881     UINT prevAlign;
 882     DC *dc = DC_GetDCPtr( hdc );
 883     if (!dc) return 0x0;
 884     if (dc->funcs->pSetTextAlign)
 885         prevAlign = dc->funcs->pSetTextAlign(dc->physDev, align);
 886     else {
 887         prevAlign = dc->textAlign;
 888         dc->textAlign = align;
 889     }
 890     GDI_ReleaseObj( hdc );
 891     return prevAlign;
 892 }
 893
 894 /***********************************************************************
 895  *           GetDCOrgEx  (GDI32.@)
 896  */
 897 BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
 898 {
 899     DC * dc;
 900
 901     if (!lpp) return FALSE;
 902     if (!(dc = DC_GetDCPtr( hDC ))) return FALSE;
 903
 904     lpp->x = lpp->y = 0;
 905     if (dc->funcs->pGetDCOrgEx) dc->funcs->pGetDCOrgEx( dc->physDev, lpp );
 906     GDI_ReleaseObj( hDC );
 907     return TRUE;
 908 }
 909
 910
 911 /***********************************************************************
 912  *           SetDCOrg   (GDI.117)
 913  */
 914 DWORD WINAPI SetDCOrg16( HDC16 hdc16, INT16 x, INT16 y )
 915 {
 916     DWORD prevOrg = 0;
 917     HDC hdc = HDC_32( hdc16 );
 918     DC *dc = DC_GetDCPtr( hdc );
 919     if (!dc) return 0;
 920     if (dc->funcs->pSetDCOrg) prevOrg = dc->funcs->pSetDCOrg( dc->physDev, x, y );
 921     GDI_ReleaseObj( hdc );
 922     return prevOrg;
 923 }
 924
 925
 926 /***********************************************************************
 927  *           SetGraphicsMode    (GDI32.@)
 928  */
 929 INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
 930 {
 931     INT ret = 0;
 932     DC *dc = DC_GetDCPtr( hdc );
 933
 934     /* One would think that setting the graphics mode to GM_COMPATIBLE
 935      * would also reset the world transformation matrix to the unity
 936      * matrix. However, in Windows, this is not the case. This doesn't
 937      * make a lot of sense to me, but that's the way it is.
 938      */
 939     if (!dc) return 0;
 940     if ((mode > 0) && (mode <= GM_LAST))
 941     {
 942         ret = dc->GraphicsMode;
 943         dc->GraphicsMode = mode;
 944     }
 945     GDI_ReleaseObj( hdc );
 946     return ret;
 947 }
 948
 949
 950 /***********************************************************************
 951  *           SetArcDirection    (GDI32.@)
 952  */
 953 INT WINAPI SetArcDirection( HDC hdc, INT nDirection )
 954 {
 955     DC * dc;
 956     INT nOldDirection = 0;
 957
 958     if (nDirection!=AD_COUNTERCLOCKWISE && nDirection!=AD_CLOCKWISE)
 959     {
 960         SetLastError(ERROR_INVALID_PARAMETER);
 961         return 0;
 962     }
 963
 964     if ((dc = DC_GetDCPtr( hdc )))
 965     {
 966         nOldDirection = dc->ArcDirection;
 967         dc->ArcDirection = nDirection;
 968         GDI_ReleaseObj( hdc );
 969     }
 970     return nOldDirection;
 971 }
 972
 973
 974 /***********************************************************************
 975  *           GetWorldTransform    (GDI32.@)
 976  */
 977 BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
 978 {
 979     DC * dc;
 980     if (!xform) return FALSE;
 981     if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
 982     *xform = dc->xformWorld2Wnd;
 983     GDI_ReleaseObj( hdc );
 984     return TRUE;
 985 }
 986
 987
 988 /***********************************************************************
 989  *           GetTransform    (GDI32.@)
 990  */
 991 BOOL WINAPI GetTransform( HDC hdc, DWORD unknown, LPXFORM xform )
 992 {
 993     if (unknown == 0x0203) return GetWorldTransform( hdc, xform );
 994     ERR("stub: don't know what to do for code %lx\n", unknown );
 995     return FALSE;
 996 }
 997
 998
 999 /***********************************************************************
1000  *           SetWorldTransform    (GDI32.@)
1001  */
1002 BOOL WINAPI SetWorldTransform( HDC hdc, const XFORM *xform )
1003 {
1004     BOOL ret = FALSE;
1005     DC *dc = DC_GetDCPtr( hdc );
1006
1007     if (!dc) return FALSE;
1008     if (!xform) goto done;
1009
1010     /* Check that graphics mode is GM_ADVANCED */
1011     if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1012
1013     dc->xformWorld2Wnd = *xform;
1014     DC_UpdateXforms( dc );
1015     ret = TRUE;
1016  done:
1017     GDI_ReleaseObj( hdc );
1018     return ret;
1019 }
1020
1021
1022 /****************************************************************************
1023  * ModifyWorldTransform [GDI32.@]
1024  * Modifies the world transformation for a device context.
1025  *
1026  * PARAMS
1027  *    hdc   [I] Handle to device context
1028  *    xform [I] XFORM structure that will be used to modify the world
1029  *              transformation
1030  *    iMode [I] Specifies in what way to modify the world transformation
1031  *              Possible values:
1032  *              MWT_IDENTITY
1033  *                 Resets the world transformation to the identity matrix.
1034  *                 The parameter xform is ignored.
1035  *              MWT_LEFTMULTIPLY
1036  *                 Multiplies xform into the world transformation matrix from
1037  *                 the left.
1038  *              MWT_RIGHTMULTIPLY
1039  *                 Multiplies xform into the world transformation matrix from
1040  *                 the right.
1041  *
1042  * RETURNS STD
1043  */
1044 BOOL WINAPI ModifyWorldTransform( HDC hdc, const XFORM *xform,
1045     DWORD iMode )
1046 {
1047     BOOL ret = FALSE;
1048     DC *dc = DC_GetDCPtr( hdc );
1049
1050     /* Check for illegal parameters */
1051     if (!dc) return FALSE;
1052     if (!xform) goto done;
1053
1054     /* Check that graphics mode is GM_ADVANCED */
1055     if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1056
1057     switch (iMode)
1058     {
1059         case MWT_IDENTITY:
1060             dc->xformWorld2Wnd.eM11 = 1.0f;
1061             dc->xformWorld2Wnd.eM12 = 0.0f;
1062             dc->xformWorld2Wnd.eM21 = 0.0f;
1063             dc->xformWorld2Wnd.eM22 = 1.0f;
1064             dc->xformWorld2Wnd.eDx  = 0.0f;
1065             dc->xformWorld2Wnd.eDy  = 0.0f;
1066             break;
1067         case MWT_LEFTMULTIPLY:
1068             CombineTransform( &dc->xformWorld2Wnd, xform,
1069                 &dc->xformWorld2Wnd );
1070             break;
1071         case MWT_RIGHTMULTIPLY:
1072             CombineTransform( &dc->xformWorld2Wnd, &dc->xformWorld2Wnd,
1073                 xform );
1074             break;
1075         default:
1076             goto done;
1077     }
1078
1079     DC_UpdateXforms( dc );
1080     ret = TRUE;
1081  done:
1082     GDI_ReleaseObj( hdc );
1083     return ret;
1084 }
1085
1086
1087 /****************************************************************************
1088  * CombineTransform [GDI32.@]
1089  * Combines two transformation matrices.
1090  *
1091  * PARAMS
1092  *    xformResult [O] Stores the result of combining the two matrices
1093  *    xform1      [I] Specifies the first matrix to apply
1094  *    xform2      [I] Specifies the second matrix to apply
1095  *
1096  * REMARKS
1097  *    The same matrix can be passed in for more than one of the parameters.
1098  *
1099  * RETURNS STD
1100  */
1101 BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1102     const XFORM *xform2 )
1103 {
1104     XFORM xformTemp;
1105
1106     /* Check for illegal parameters */
1107     if (!xformResult || !xform1 || !xform2)
1108         return FALSE;
1109
1110     /* Create the result in a temporary XFORM, since xformResult may be
1111      * equal to xform1 or xform2 */
1112     xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1113                      xform1->eM12 * xform2->eM21;
1114     xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1115                      xform1->eM12 * xform2->eM22;
1116     xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1117                      xform1->eM22 * xform2->eM21;
1118     xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1119                      xform1->eM22 * xform2->eM22;
1120     xformTemp.eDx  = xform1->eDx  * xform2->eM11 +
1121                      xform1->eDy  * xform2->eM21 +
1122                      xform2->eDx;
1123     xformTemp.eDy  = xform1->eDx  * xform2->eM12 +
1124                      xform1->eDy  * xform2->eM22 +
1125                      xform2->eDy;
1126
1127     /* Copy the result to xformResult */
1128     *xformResult = xformTemp;
1129
1130     return TRUE;
1131 }
1132
1133
1134 /***********************************************************************
1135  *           SetDCHook   (GDI32.@)
1136  *
1137  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1138  */
1139 BOOL WINAPI SetDCHook( HDC hdc, DCHOOKPROC hookProc, DWORD dwHookData )
1140 {
1141     DC *dc = GDI_GetObjPtr( hdc, DC_MAGIC );
1142
1143     if (!dc) return FALSE;
1144
1145     if (!(dc->flags & DC_SAVED))
1146     {
1147         dc->dwHookData = dwHookData;
1148         dc->hookThunk = hookProc;
1149     }
1150     GDI_ReleaseObj( hdc );
1151     return TRUE;
1152 }
1153
1154
1155 /* relay function to call the 16-bit DC hook proc */
1156 static BOOL16 WINAPI call_dc_hook16( HDC16 hdc16, WORD code, DWORD data, LPARAM lParam )
1157 {
1158     WORD args[6];
1159     DWORD ret;
1160     FARPROC16 proc = NULL;
1161     HDC hdc = HDC_32( hdc16 );
1162     DC *dc = DC_GetDCPtr( hdc );
1163
1164     if (!dc) return FALSE;
1165     proc = dc->hookProc;
1166     GDI_ReleaseObj( hdc );
1167     if (!proc) return FALSE;
1168     args[5] = hdc16;
1169     args[4] = code;
1170     args[3] = HIWORD(data);
1171     args[2] = LOWORD(data);
1172     args[1] = HIWORD(lParam);
1173     args[0] = LOWORD(lParam);
1174     WOWCallback16Ex( (DWORD)proc, WCB16_PASCAL, sizeof(args), args, &ret );
1175     return LOWORD(ret);
1176 }
1177
1178 /***********************************************************************
1179  *           SetDCHook   (GDI.190)
1180  */
1181 BOOL16 WINAPI SetDCHook16( HDC16 hdc16, FARPROC16 hookProc, DWORD dwHookData )
1182 {
1183     HDC hdc = HDC_32( hdc16 );
1184     DC *dc = DC_GetDCPtr( hdc );
1185     if (!dc) return FALSE;
1186
1187     dc->hookProc = hookProc;
1188     GDI_ReleaseObj( hdc );
1189     return SetDCHook( hdc, call_dc_hook16, dwHookData );
1190 }
1191
1192
1193 /***********************************************************************
1194  *           GetDCHook   (GDI.191)
1195  */
1196 DWORD WINAPI GetDCHook16( HDC16 hdc16, FARPROC16 *phookProc )
1197 {
1198     HDC hdc = HDC_32( hdc16 );
1199     DC *dc = DC_GetDCPtr( hdc );
1200     DWORD ret;
1201
1202     if (!dc) return 0;
1203     *phookProc = dc->hookProc;
1204     ret = dc->dwHookData;
1205     GDI_ReleaseObj( hdc );
1206     return ret;
1207 }
1208
1209
1210 /***********************************************************************
1211  *           SetHookFlags   (GDI.192)
1212  */
1213 WORD WINAPI SetHookFlags16(HDC16 hdc16, WORD flags)
1214 {
1215     HDC hdc = HDC_32( hdc16 );
1216     DC *dc = DC_GetDCPtr( hdc );
1217
1218     if( dc )
1219     {
1220         WORD wRet = dc->flags & DC_DIRTY;
1221
1222         /* "Undocumented Windows" info is slightly confusing.
1223          */
1224
1225         TRACE("hDC %p, flags %04x\n",hdc,flags);
1226
1227         if( flags & DCHF_INVALIDATEVISRGN )
1228             dc->flags |= DC_DIRTY;
1229         else if( flags & DCHF_VALIDATEVISRGN || !flags )
1230             dc->flags &= ~DC_DIRTY;
1231         GDI_ReleaseObj( hdc );
1232         return wRet;
1233     }
1234     return 0;
1235 }
1236
1237 /***********************************************************************
1238  *           SetICMMode    (GDI32.@)
1239  */
1240 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1241 {
1242 /*FIXME  Asuming that ICM is always off, and cannot be turned on */
1243     if (iEnableICM == ICM_OFF) return ICM_OFF;
1244     if (iEnableICM == ICM_ON) return 0;
1245     if (iEnableICM == ICM_QUERY) return ICM_OFF;
1246     return 0;
1247 }
1248
1249 /***********************************************************************
1250  *           GetDeviceGammaRamp    (GDI32.@)
1251  */
1252 BOOL WINAPI GetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1253 {
1254     BOOL ret = FALSE;
1255     DC *dc = DC_GetDCPtr( hDC );
1256
1257     if( dc )
1258     {
1259         if (dc->funcs->pGetDeviceGammaRamp)
1260             ret = dc->funcs->pGetDeviceGammaRamp(dc->physDev, ptr);
1261         GDI_ReleaseObj( hDC );
1262     }
1263     return ret;
1264 }
1265
1266 /***********************************************************************
1267  *           SetDeviceGammaRamp    (GDI32.@)
1268  */
1269 BOOL WINAPI SetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1270 {
1271     BOOL ret = FALSE;
1272     DC *dc = DC_GetDCPtr( hDC );
1273
1274     if( dc )
1275     {
1276         if (dc->funcs->pSetDeviceGammaRamp)
1277             ret = dc->funcs->pSetDeviceGammaRamp(dc->physDev, ptr);
1278         GDI_ReleaseObj( hDC );
1279     }
1280     return ret;
1281 }
1282
1283 /***********************************************************************
1284  *           GetColorSpace    (GDI32.@)
1285  */
1286 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1287 {
1288 /*FIXME    Need to to whatever GetColorSpace actually does */
1289     return 0;
1290 }
1291
1292 /***********************************************************************
1293  *           CreateColorSpaceA    (GDI32.@)
1294  */
1295 HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
1296 {
1297   FIXME( "stub\n" );
1298   return 0;
1299 }
1300
1301 /***********************************************************************
1302  *           CreateColorSpaceW    (GDI32.@)
1303  */
1304 HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
1305 {
1306   FIXME( "stub\n" );
1307   return 0;
1308 }
1309
1310 /***********************************************************************
1311  *           DeleteColorSpace     (GDI32.@)
1312  */
1313 BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
1314 {
1315   FIXME( "stub\n" );
1316
1317   return TRUE;
1318 }
1319
1320 /***********************************************************************
1321  *           SetColorSpace     (GDI32.@)
1322  */
1323 HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
1324 {
1325   FIXME( "stub\n" );
1326
1327   return hColorSpace;
1328 }
1329
1330 /***********************************************************************
1331  *           GetBoundsRect    (GDI.194)
1332  */
1333 UINT16 WINAPI GetBoundsRect16(HDC16 hdc, LPRECT16 rect, UINT16 flags)
1334 {
1335     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1336 }
1337
1338 /***********************************************************************
1339  *           GetBoundsRect    (GDI32.@)
1340  */
1341 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1342 {
1343     FIXME("(): stub\n");
1344     return DCB_RESET;   /* bounding rectangle always empty */
1345 }
1346
1347 /***********************************************************************
1348  *           SetBoundsRect    (GDI.193)
1349  */
1350 UINT16 WINAPI SetBoundsRect16(HDC16 hdc, const RECT16* rect, UINT16 flags)
1351 {
1352     if ( (flags & DCB_ACCUMULATE) || (flags & DCB_ENABLE) )
1353         FIXME("(%04x, %p, %04x): stub\n", hdc, rect, flags );
1354
1355     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1356 }
1357
1358 /***********************************************************************
1359  *           SetBoundsRect    (GDI32.@)
1360  */
1361 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1362 {
1363     FIXME("(): stub\n");
1364     return DCB_DISABLE;   /* bounding rectangle always empty */
1365 }
1366
1367
1368 /***********************************************************************
1369  *              GetRelAbs               (GDI32.@)
1370  */
1371 INT WINAPI GetRelAbs( HDC hdc, DWORD dwIgnore )
1372 {
1373     INT ret = 0;
1374     DC *dc = DC_GetDCPtr( hdc );
1375     if (dc) ret = dc->relAbsMode;
1376     GDI_ReleaseObj( hdc );
1377     return ret;
1378 }
1379
1380 /***********************************************************************
1381  *           GetLayout    (GDI32.@)
1382  *
1383  * Gets left->right or right->left text layout flags of a dc.
1384  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1385  *
1386  */
1387 DWORD WINAPI GetLayout(HDC hdc)
1388 {
1389     FIXME("(%p): stub\n", hdc);
1390     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1391     return 0;
1392 }
1393
1394 /***********************************************************************
1395  *           SetLayout    (GDI32.@)
1396  *
1397  * Sets left->right or right->left text layout flags of a dc.
1398  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1399  *
1400  */
1401 DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
1402 {
1403     FIXME("(%p,%08lx): stub\n", hdc, layout);
1404     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1405     return 0;
1406 }
1407
1408 /***********************************************************************
1409  *           SetDCBrushColor    (GDI32.@)
1410  *
1411  * Sets the current device context (DC) brush color to the specified
1412  * color value. If the device cannot represent the specified color
1413  * value, the color is set to the nearest physical color.
1414  *
1415  */
1416 COLORREF WINAPI SetDCBrushColor(HDC hdc, COLORREF crColor)
1417 {
1418     FIXME("(%p, %08lx): stub\n", hdc, crColor);
1419     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1420     return CLR_INVALID;
1421 }
1422
1423 /***********************************************************************
1424  *           SetVirtualResolution   (GDI32.@)
1425  *
1426  * Undocumented on msdn.  Called when powerpoint xp saves a file.
1427  */
1428 DWORD WINAPI SetVirtualResolution(HDC hdc, DWORD dw2, DWORD dw3, DWORD dw4, DWORD dw5)
1429 {
1430     FIXME("(%p %08lx %08lx %08lx %08lx): stub!\n", hdc, dw2, dw3, dw4, dw5);
1431     return FALSE;
1432 }