objects/dc.c

   1 /*
   2  * GDI Device Context functions
   3  *
   4  * Copyright 1993 Alexandre Julliard
   5  *
   6  */
   7
   8 #include "config.h"
   9
  10 #ifndef X_DISPLAY_MISSING
  11 #include "ts_xlib.h"
  12 #include "x11drv.h"
  13 #endif  /* !defined(X_DISPLAY_MISSING) */
  14
  15 #include <stdlib.h>
  16 #include <string.h>
  17 #include "dc.h"
  18 #include "gdi.h"
  19 #include "heap.h"
  20 #include "debugtools.h"
  21 #include "font.h"
  22 #include "callback.h"
  23 #include "winerror.h"
  24 #include "wine/winuser16.h"
  25
  26 DEFAULT_DEBUG_CHANNEL(dc)
  27
  28 /***********************************************************************
  29  *           DC_Init_DC_INFO
  30  *
  31  * Fill the WIN_DC_INFO structure.
  32  */
  33 static void DC_Init_DC_INFO( WIN_DC_INFO *win_dc_info )
  34 {
  35     win_dc_info->flags               = 0;
  36     win_dc_info->devCaps             = NULL;
  37     win_dc_info->hClipRgn            = 0;
  38     win_dc_info->hVisRgn             = 0;
  39     win_dc_info->hGCClipRgn          = 0;
  40     win_dc_info->hPen                = STOCK_BLACK_PEN;
  41     win_dc_info->hBrush              = STOCK_WHITE_BRUSH;
  42     win_dc_info->hFont               = STOCK_SYSTEM_FONT;
  43     win_dc_info->hBitmap             = 0;
  44     win_dc_info->hDevice             = 0;
  45     win_dc_info->hPalette            = STOCK_DEFAULT_PALETTE;
  46     win_dc_info->ROPmode             = R2_COPYPEN;
  47     win_dc_info->polyFillMode        = ALTERNATE;
  48     win_dc_info->stretchBltMode      = BLACKONWHITE;
  49     win_dc_info->relAbsMode          = ABSOLUTE;
  50     win_dc_info->backgroundMode      = OPAQUE;
  51     win_dc_info->backgroundColor     = RGB( 255, 255, 255 );
  52     win_dc_info->textColor           = RGB( 0, 0, 0 );
  53     win_dc_info->brushOrgX           = 0;
  54     win_dc_info->brushOrgY           = 0;
  55     win_dc_info->textAlign           = TA_LEFT | TA_TOP | TA_NOUPDATECP;
  56     win_dc_info->charExtra           = 0;
  57     win_dc_info->breakTotalExtra     = 0;
  58     win_dc_info->breakCount          = 0;
  59     win_dc_info->breakExtra          = 0;
  60     win_dc_info->breakRem            = 0;
  61     win_dc_info->bitsPerPixel        = 1;
  62     win_dc_info->MapMode             = MM_TEXT;
  63     win_dc_info->GraphicsMode        = GM_COMPATIBLE;
  64     win_dc_info->DCOrgX              = 0;
  65     win_dc_info->DCOrgY              = 0;
  66     win_dc_info->pAbortProc          = NULL;
  67     win_dc_info->CursPosX            = 0;
  68     win_dc_info->CursPosY            = 0;
  69     win_dc_info->ArcDirection        = AD_COUNTERCLOCKWISE;
  70     win_dc_info->xformWorld2Wnd.eM11 = 1.0f;
  71     win_dc_info->xformWorld2Wnd.eM12 = 0.0f;
  72     win_dc_info->xformWorld2Wnd.eM21 = 0.0f;
  73     win_dc_info->xformWorld2Wnd.eM22 = 1.0f;
  74     win_dc_info->xformWorld2Wnd.eDx  = 0.0f;
  75     win_dc_info->xformWorld2Wnd.eDy  = 0.0f;
  76     win_dc_info->xformWorld2Vport    = win_dc_info->xformWorld2Wnd;
  77     win_dc_info->xformVport2World    = win_dc_info->xformWorld2Wnd;
  78     win_dc_info->vport2WorldValid    = TRUE;
  79
  80     PATH_InitGdiPath(&win_dc_info->path);
  81 }
  82
  83
  84 /***********************************************************************
  85  *           DC_AllocDC
  86  */
  87 DC *DC_AllocDC( const DC_FUNCTIONS *funcs )
  88 {
  89     HDC16 hdc;
  90     DC *dc;
  91
  92     if (!(hdc = GDI_AllocObject( sizeof(DC), DC_MAGIC ))) return NULL;
  93     dc = (DC *) GDI_HEAP_LOCK( hdc );
  94
  95     dc->hSelf      = hdc;
  96     dc->funcs      = funcs;
  97     dc->physDev    = NULL;
  98     dc->saveLevel  = 0;
  99     dc->dwHookData = 0L;
 100     dc->hookProc   = NULL;
 101     dc->hookThunk  = NULL;
 102     dc->wndOrgX    = 0;
 103     dc->wndOrgY    = 0;
 104     dc->wndExtX    = 1;
 105     dc->wndExtY    = 1;
 106     dc->vportOrgX  = 0;
 107     dc->vportOrgY  = 0;
 108     dc->vportExtX  = 1;
 109     dc->vportExtY  = 1;
 110
 111     DC_Init_DC_INFO( &dc->w );
 112
 113     return dc;
 114 }
 115
 116
 117
 118 /***********************************************************************
 119  *           DC_GetDCPtr
 120  */
 121 DC *DC_GetDCPtr( HDC hdc )
 122 {
 123     GDIOBJHDR *ptr = (GDIOBJHDR *)GDI_HEAP_LOCK( hdc );
 124     if (!ptr) return NULL;
 125     if ((ptr->wMagic == DC_MAGIC) || (ptr->wMagic == METAFILE_DC_MAGIC) ||
 126         (ptr->wMagic == ENHMETAFILE_DC_MAGIC))
 127         return (DC *)ptr;
 128     GDI_HEAP_UNLOCK( hdc );
 129     return NULL;
 130 }
 131
 132
 133 /***********************************************************************
 134  *           DC_InitDC
 135  *
 136  * Setup device-specific DC values for a newly created DC.
 137  */
 138 void DC_InitDC( DC* dc )
 139 {
 140     RealizeDefaultPalette16( dc->hSelf );
 141     SetTextColor( dc->hSelf, dc->w.textColor );
 142     SetBkColor( dc->hSelf, dc->w.backgroundColor );
 143     SelectObject( dc->hSelf, dc->w.hPen );
 144     SelectObject( dc->hSelf, dc->w.hBrush );
 145     SelectObject( dc->hSelf, dc->w.hFont );
 146     CLIPPING_UpdateGCRegion( dc );
 147 }
 148
 149
 150 /***********************************************************************
 151  *           DC_InvertXform
 152  *
 153  * Computes the inverse of the transformation xformSrc and stores it to
 154  * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
 155  * is singular.
 156  */
 157 static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
 158 {
 159     FLOAT determinant;
 160
 161     determinant = xformSrc->eM11*xformSrc->eM22 -
 162         xformSrc->eM12*xformSrc->eM21;
 163     if (determinant > -1e-12 && determinant < 1e-12)
 164         return FALSE;
 165
 166     xformDest->eM11 =  xformSrc->eM22 / determinant;
 167     xformDest->eM12 = -xformSrc->eM12 / determinant;
 168     xformDest->eM21 = -xformSrc->eM21 / determinant;
 169     xformDest->eM22 =  xformSrc->eM11 / determinant;
 170     xformDest->eDx  = -xformSrc->eDx * xformDest->eM11 -
 171                        xformSrc->eDy * xformDest->eM21;
 172     xformDest->eDy  = -xformSrc->eDx * xformDest->eM12 -
 173                        xformSrc->eDy * xformDest->eM22;
 174
 175     return TRUE;
 176 }
 177
 178
 179 /***********************************************************************
 180  *           DC_UpdateXforms
 181  *
 182  * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
 183  * fields of the specified DC by creating a transformation that
 184  * represents the current mapping mode and combining it with the DC's
 185  * world transform. This function should be called whenever the
 186  * parameters associated with the mapping mode (window and viewport
 187  * extents and origins) or the world transform change.
 188  */
 189 void DC_UpdateXforms( DC *dc )
 190 {
 191     XFORM xformWnd2Vport;
 192     FLOAT scaleX, scaleY;
 193
 194     /* Construct a transformation to do the window-to-viewport conversion */
 195     scaleX = (FLOAT)dc->vportExtX / (FLOAT)dc->wndExtX;
 196     scaleY = (FLOAT)dc->vportExtY / (FLOAT)dc->wndExtY;
 197     xformWnd2Vport.eM11 = scaleX;
 198     xformWnd2Vport.eM12 = 0.0;
 199     xformWnd2Vport.eM21 = 0.0;
 200     xformWnd2Vport.eM22 = scaleY;
 201     xformWnd2Vport.eDx  = (FLOAT)dc->vportOrgX -
 202         scaleX * (FLOAT)dc->wndOrgX;
 203     xformWnd2Vport.eDy  = (FLOAT)dc->vportOrgY -
 204         scaleY * (FLOAT)dc->wndOrgY;
 205
 206     /* Combine with the world transformation */
 207     CombineTransform( &dc->w.xformWorld2Vport, &dc->w.xformWorld2Wnd,
 208         &xformWnd2Vport );
 209
 210     /* Create inverse of world-to-viewport transformation */
 211     dc->w.vport2WorldValid = DC_InvertXform( &dc->w.xformWorld2Vport,
 212         &dc->w.xformVport2World );
 213 }
 214
 215
 216 /***********************************************************************
 217  *           GetDCState    (GDI.179)
 218  */
 219 HDC16 WINAPI GetDCState16( HDC16 hdc )
 220 {
 221     DC * newdc, * dc;
 222     HGDIOBJ16 handle;
 223
 224     if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return 0;
 225     if (!(handle = GDI_AllocObject( sizeof(DC), DC_MAGIC )))
 226     {
 227       GDI_HEAP_UNLOCK( hdc );
 228       return 0;
 229     }
 230     newdc = (DC *) GDI_HEAP_LOCK( handle );
 231
 232     TRACE("(%04x): returning %04x\n", hdc, handle );
 233
 234     newdc->w.flags            = dc->w.flags | DC_SAVED;
 235     newdc->w.devCaps          = dc->w.devCaps;
 236     newdc->w.hPen             = dc->w.hPen;
 237     newdc->w.hBrush           = dc->w.hBrush;
 238     newdc->w.hFont            = dc->w.hFont;
 239     newdc->w.hBitmap          = dc->w.hBitmap;
 240     newdc->w.hDevice          = dc->w.hDevice;
 241     newdc->w.hPalette         = dc->w.hPalette;
 242     newdc->w.totalExtent      = dc->w.totalExtent;
 243     newdc->w.bitsPerPixel     = dc->w.bitsPerPixel;
 244     newdc->w.ROPmode          = dc->w.ROPmode;
 245     newdc->w.polyFillMode     = dc->w.polyFillMode;
 246     newdc->w.stretchBltMode   = dc->w.stretchBltMode;
 247     newdc->w.relAbsMode       = dc->w.relAbsMode;
 248     newdc->w.backgroundMode   = dc->w.backgroundMode;
 249     newdc->w.backgroundColor  = dc->w.backgroundColor;
 250     newdc->w.textColor        = dc->w.textColor;
 251     newdc->w.brushOrgX        = dc->w.brushOrgX;
 252     newdc->w.brushOrgY        = dc->w.brushOrgY;
 253     newdc->w.textAlign        = dc->w.textAlign;
 254     newdc->w.charExtra        = dc->w.charExtra;
 255     newdc->w.breakTotalExtra  = dc->w.breakTotalExtra;
 256     newdc->w.breakCount       = dc->w.breakCount;
 257     newdc->w.breakExtra       = dc->w.breakExtra;
 258     newdc->w.breakRem         = dc->w.breakRem;
 259     newdc->w.MapMode          = dc->w.MapMode;
 260     newdc->w.GraphicsMode     = dc->w.GraphicsMode;
 261 #if 0
 262     /* Apparently, the DC origin is not changed by [GS]etDCState */
 263     newdc->w.DCOrgX           = dc->w.DCOrgX;
 264     newdc->w.DCOrgY           = dc->w.DCOrgY;
 265 #endif
 266     newdc->w.CursPosX         = dc->w.CursPosX;
 267     newdc->w.CursPosY         = dc->w.CursPosY;
 268     newdc->w.ArcDirection     = dc->w.ArcDirection;
 269     newdc->w.xformWorld2Wnd   = dc->w.xformWorld2Wnd;
 270     newdc->w.xformWorld2Vport = dc->w.xformWorld2Vport;
 271     newdc->w.xformVport2World = dc->w.xformVport2World;
 272     newdc->w.vport2WorldValid = dc->w.vport2WorldValid;
 273     newdc->wndOrgX            = dc->wndOrgX;
 274     newdc->wndOrgY            = dc->wndOrgY;
 275     newdc->wndExtX            = dc->wndExtX;
 276     newdc->wndExtY            = dc->wndExtY;
 277     newdc->vportOrgX          = dc->vportOrgX;
 278     newdc->vportOrgY          = dc->vportOrgY;
 279     newdc->vportExtX          = dc->vportExtX;
 280     newdc->vportExtY          = dc->vportExtY;
 281
 282     newdc->hSelf = (HDC)handle;
 283     newdc->saveLevel = 0;
 284
 285     PATH_InitGdiPath( &newdc->w.path );
 286
 287     newdc->w.pAbortProc = NULL;
 288
 289     /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
 290
 291     newdc->w.hGCClipRgn = newdc->w.hVisRgn = 0;
 292     if (dc->w.hClipRgn)
 293     {
 294         newdc->w.hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 295         CombineRgn( newdc->w.hClipRgn, dc->w.hClipRgn, 0, RGN_COPY );
 296     }
 297     else
 298         newdc->w.hClipRgn = 0;
 299     GDI_HEAP_UNLOCK( handle );
 300     GDI_HEAP_UNLOCK( hdc );
 301     return handle;
 302 }
 303
 304
 305 /***********************************************************************
 306  *           SetDCState    (GDI.180)
 307  */
 308 void WINAPI SetDCState16( HDC16 hdc, HDC16 hdcs )
 309 {
 310     DC *dc, *dcs;
 311
 312     if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return;
 313     if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC )))
 314     {
 315       GDI_HEAP_UNLOCK( hdc );
 316       return;
 317     }
 318     if (!dcs->w.flags & DC_SAVED)
 319     {
 320       GDI_HEAP_UNLOCK( hdc );
 321       GDI_HEAP_UNLOCK( hdcs );
 322       return;
 323     }
 324     TRACE("%04x %04x\n", hdc, hdcs );
 325
 326     dc->w.flags            = dcs->w.flags & ~DC_SAVED;
 327     dc->w.devCaps          = dcs->w.devCaps;
 328     dc->w.hDevice          = dcs->w.hDevice;
 329     dc->w.totalExtent      = dcs->w.totalExtent;
 330     dc->w.ROPmode          = dcs->w.ROPmode;
 331     dc->w.polyFillMode     = dcs->w.polyFillMode;
 332     dc->w.stretchBltMode   = dcs->w.stretchBltMode;
 333     dc->w.relAbsMode       = dcs->w.relAbsMode;
 334     dc->w.backgroundMode   = dcs->w.backgroundMode;
 335     dc->w.backgroundColor  = dcs->w.backgroundColor;
 336     dc->w.textColor        = dcs->w.textColor;
 337     dc->w.brushOrgX        = dcs->w.brushOrgX;
 338     dc->w.brushOrgY        = dcs->w.brushOrgY;
 339     dc->w.textAlign        = dcs->w.textAlign;
 340     dc->w.charExtra        = dcs->w.charExtra;
 341     dc->w.breakTotalExtra  = dcs->w.breakTotalExtra;
 342     dc->w.breakCount       = dcs->w.breakCount;
 343     dc->w.breakExtra       = dcs->w.breakExtra;
 344     dc->w.breakRem         = dcs->w.breakRem;
 345     dc->w.MapMode          = dcs->w.MapMode;
 346     dc->w.GraphicsMode     = dcs->w.GraphicsMode;
 347 #if 0
 348     /* Apparently, the DC origin is not changed by [GS]etDCState */
 349     dc->w.DCOrgX           = dcs->w.DCOrgX;
 350     dc->w.DCOrgY           = dcs->w.DCOrgY;
 351 #endif
 352     dc->w.CursPosX         = dcs->w.CursPosX;
 353     dc->w.CursPosY         = dcs->w.CursPosY;
 354     dc->w.ArcDirection     = dcs->w.ArcDirection;
 355     dc->w.xformWorld2Wnd   = dcs->w.xformWorld2Wnd;
 356     dc->w.xformWorld2Vport = dcs->w.xformWorld2Vport;
 357     dc->w.xformVport2World = dcs->w.xformVport2World;
 358     dc->w.vport2WorldValid = dcs->w.vport2WorldValid;
 359
 360     dc->wndOrgX            = dcs->wndOrgX;
 361     dc->wndOrgY            = dcs->wndOrgY;
 362     dc->wndExtX            = dcs->wndExtX;
 363     dc->wndExtY            = dcs->wndExtY;
 364     dc->vportOrgX          = dcs->vportOrgX;
 365     dc->vportOrgY          = dcs->vportOrgY;
 366     dc->vportExtX          = dcs->vportExtX;
 367     dc->vportExtY          = dcs->vportExtY;
 368
 369     if (!(dc->w.flags & DC_MEMORY)) dc->w.bitsPerPixel = dcs->w.bitsPerPixel;
 370
 371     if (dcs->w.hClipRgn)
 372     {
 373         if (!dc->w.hClipRgn) dc->w.hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 374         CombineRgn( dc->w.hClipRgn, dcs->w.hClipRgn, 0, RGN_COPY );
 375     }
 376     else
 377     {
 378         if (dc->w.hClipRgn) DeleteObject16( dc->w.hClipRgn );
 379         dc->w.hClipRgn = 0;
 380     }
 381     CLIPPING_UpdateGCRegion( dc );
 382
 383     SelectObject( hdc, dcs->w.hBitmap );
 384     SelectObject( hdc, dcs->w.hBrush );
 385     SelectObject( hdc, dcs->w.hFont );
 386     SelectObject( hdc, dcs->w.hPen );
 387     SetBkColor( hdc, dcs->w.backgroundColor);
 388     SetTextColor( hdc, dcs->w.textColor);
 389     GDISelectPalette16( hdc, dcs->w.hPalette, FALSE );
 390     GDI_HEAP_UNLOCK( hdc );
 391     GDI_HEAP_UNLOCK( hdcs );
 392 }
 393
 394
 395 /***********************************************************************
 396  *           SaveDC16    (GDI.30)
 397  */
 398 INT16 WINAPI SaveDC16( HDC16 hdc )
 399 {
 400     return (INT16)SaveDC( hdc );
 401 }
 402
 403
 404 /***********************************************************************
 405  *           SaveDC32    (GDI32.292)
 406  */
 407 INT WINAPI SaveDC( HDC hdc )
 408 {
 409     HDC hdcs;
 410     DC * dc, * dcs;
 411     INT ret;
 412
 413     dc = DC_GetDCPtr( hdc );
 414     if (!dc) return 0;
 415
 416     if(dc->funcs->pSaveDC)
 417         return dc->funcs->pSaveDC( dc );
 418
 419     if (!(hdcs = GetDCState16( hdc )))
 420     {
 421       GDI_HEAP_UNLOCK( hdc );
 422       return 0;
 423     }
 424     dcs = (DC *) GDI_HEAP_LOCK( hdcs );
 425
 426     /* Copy path. The reason why path saving / restoring is in SaveDC/
 427      * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
 428      * functions are only in Win16 (which doesn't have paths) and that
 429      * SetDCState doesn't allow us to signal an error (which can happen
 430      * when copying paths).
 431      */
 432     if (!PATH_AssignGdiPath( &dcs->w.path, &dc->w.path ))
 433     {
 434         GDI_HEAP_UNLOCK( hdc );
 435         GDI_HEAP_UNLOCK( hdcs );
 436         DeleteDC( hdcs );
 437         return 0;
 438     }
 439
 440     dcs->header.hNext = dc->header.hNext;
 441     dc->header.hNext = hdcs;
 442     TRACE("(%04x): returning %d\n", hdc, dc->saveLevel+1 );
 443     ret = ++dc->saveLevel;
 444     GDI_HEAP_UNLOCK( hdcs );
 445     GDI_HEAP_UNLOCK( hdc );
 446     return ret;
 447 }
 448
 449
 450 /***********************************************************************
 451  *           RestoreDC16    (GDI.39)
 452  */
 453 BOOL16 WINAPI RestoreDC16( HDC16 hdc, INT16 level )
 454 {
 455     return RestoreDC( hdc, level );
 456 }
 457
 458
 459 /***********************************************************************
 460  *           RestoreDC32    (GDI32.290)
 461  */
 462 BOOL WINAPI RestoreDC( HDC hdc, INT level )
 463 {
 464     DC * dc, * dcs;
 465     BOOL success;
 466
 467     TRACE("%04x %d\n", hdc, level );
 468     dc = DC_GetDCPtr( hdc );
 469     if(!dc) return FALSE;
 470     if(dc->funcs->pRestoreDC)
 471         return dc->funcs->pRestoreDC( dc, level );
 472
 473     if (level == -1) level = dc->saveLevel;
 474     if ((level < 1) || (level > dc->saveLevel))
 475     {
 476       GDI_HEAP_UNLOCK( hdc );
 477       return FALSE;
 478     }
 479
 480     success=TRUE;
 481     while (dc->saveLevel >= level)
 482     {
 483         HDC16 hdcs = dc->header.hNext;
 484         if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC )))
 485         {
 486           GDI_HEAP_UNLOCK( hdc );
 487           return FALSE;
 488         }
 489         dc->header.hNext = dcs->header.hNext;
 490         if (--dc->saveLevel < level)
 491         {
 492             SetDCState16( hdc, hdcs );
 493             if (!PATH_AssignGdiPath( &dc->w.path, &dcs->w.path ))
 494                 /* FIXME: This might not be quite right, since we're
 495                  * returning FALSE but still destroying the saved DC state */
 496                 success=FALSE;
 497         }
 498         DeleteDC( hdcs );
 499     }
 500     GDI_HEAP_UNLOCK( hdc );
 501     return success;
 502 }
 503
 504
 505 /***********************************************************************
 506  *           CreateDC16    (GDI.53)
 507  */
 508 HDC16 WINAPI CreateDC16( LPCSTR driver, LPCSTR device, LPCSTR output,
 509                          const DEVMODEA *initData )
 510 {
 511     DC * dc;
 512     const DC_FUNCTIONS *funcs;
 513     char buf[300];
 514
 515     if (device) {
 516         if(!DRIVER_GetDriverName( device, buf, sizeof(buf) )) return 0;
 517     } else
 518         strcpy(buf, driver);
 519
 520     if (!(funcs = DRIVER_FindDriver( buf ))) return 0;
 521     if (!(dc = DC_AllocDC( funcs ))) return 0;
 522     dc->w.flags = 0;
 523
 524     TRACE("(driver=%s, device=%s, output=%s): returning %04x\n",
 525                debugstr_a(driver), debugstr_a(device), debugstr_a(output), dc->hSelf );
 526
 527     if (dc->funcs->pCreateDC &&
 528         !dc->funcs->pCreateDC( dc, buf, device, output, initData ))
 529     {
 530         WARN("creation aborted by device\n" );
 531         GDI_HEAP_FREE( dc->hSelf );
 532         return 0;
 533     }
 534
 535     DC_InitDC( dc );
 536     GDI_HEAP_UNLOCK( dc->hSelf );
 537     return dc->hSelf;
 538 }
 539
 540
 541 /***********************************************************************
 542  *           CreateDC32A    (GDI32.)
 543  */
 544 HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
 545                           const DEVMODEA *initData )
 546 {
 547     return CreateDC16( driver, device, output, (const DEVMODEA *)initData );
 548 }
 549
 550
 551 /***********************************************************************
 552  *           CreateDC32W    (GDI32.)
 553  */
 554 HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 555                           const DEVMODEW *initData )
 556 {
 557     LPSTR driverA = HEAP_strdupWtoA( GetProcessHeap(), 0, driver );
 558     LPSTR deviceA = HEAP_strdupWtoA( GetProcessHeap(), 0, device );
 559     LPSTR outputA = HEAP_strdupWtoA( GetProcessHeap(), 0, output );
 560     HDC res = CreateDC16( driverA, deviceA, outputA,
 561                             (const DEVMODEA *)initData /*FIXME*/ );
 562     HeapFree( GetProcessHeap(), 0, driverA );
 563     HeapFree( GetProcessHeap(), 0, deviceA );
 564     HeapFree( GetProcessHeap(), 0, outputA );
 565     return res;
 566 }
 567
 568
 569 /***********************************************************************
 570  *           CreateIC16    (GDI.153)
 571  */
 572 HDC16 WINAPI CreateIC16( LPCSTR driver, LPCSTR device, LPCSTR output,
 573                          const DEVMODEA* initData )
 574 {
 575       /* Nothing special yet for ICs */
 576     return CreateDC16( driver, device, output, initData );
 577 }
 578
 579
 580 /***********************************************************************
 581  *           CreateIC32A    (GDI32.49)
 582  */
 583 HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
 584                           const DEVMODEA* initData )
 585 {
 586       /* Nothing special yet for ICs */
 587     return CreateDCA( driver, device, output, initData );
 588 }
 589
 590
 591 /***********************************************************************
 592  *           CreateIC32W    (GDI32.50)
 593  */
 594 HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 595                           const DEVMODEW* initData )
 596 {
 597       /* Nothing special yet for ICs */
 598     return CreateDCW( driver, device, output, initData );
 599 }
 600
 601
 602 /***********************************************************************
 603  *           CreateCompatibleDC16    (GDI.52)
 604  */
 605 HDC16 WINAPI CreateCompatibleDC16( HDC16 hdc )
 606 {
 607     return (HDC16)CreateCompatibleDC( hdc );
 608 }
 609
 610
 611 /***********************************************************************
 612  *           CreateCompatibleDC32   (GDI32.31)
 613  */
 614 HDC WINAPI CreateCompatibleDC( HDC hdc )
 615 {
 616     DC *dc, *origDC;
 617     const DC_FUNCTIONS *funcs;
 618
 619     if ((origDC = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC ))) funcs = origDC->funcs;
 620     else funcs = DRIVER_FindDriver( "DISPLAY" );
 621     if (!funcs) return 0;
 622
 623     if (!(dc = DC_AllocDC( funcs ))) return 0;
 624
 625     TRACE("(%04x): returning %04x\n",
 626                hdc, dc->hSelf );
 627
 628     dc->w.flags        = DC_MEMORY;
 629     dc->w.bitsPerPixel = 1;
 630     dc->w.hBitmap      = hPseudoStockBitmap;
 631
 632     /* Copy the driver-specific physical device info into
 633      * the new DC. The driver may use this read-only info
 634      * while creating the compatible DC below. */
 635     if (origDC)
 636         dc->physDev = origDC->physDev;
 637
 638     if (dc->funcs->pCreateDC &&
 639         !dc->funcs->pCreateDC( dc, NULL, NULL, NULL, NULL ))
 640     {
 641         WARN("creation aborted by device\n");
 642         GDI_HEAP_FREE( dc->hSelf );
 643         return 0;
 644     }
 645
 646     DC_InitDC( dc );
 647     GDI_HEAP_UNLOCK( dc->hSelf );
 648     return dc->hSelf;
 649 }
 650
 651
 652 /***********************************************************************
 653  *           DeleteDC16    (GDI.68)
 654  */
 655 BOOL16 WINAPI DeleteDC16( HDC16 hdc )
 656 {
 657     return DeleteDC( hdc );
 658 }
 659
 660
 661 /***********************************************************************
 662  *           DeleteDC32    (GDI32.67)
 663  */
 664 BOOL WINAPI DeleteDC( HDC hdc )
 665 {
 666     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 667     if (!dc) return FALSE;
 668
 669     TRACE("%04x\n", hdc );
 670
 671     /* Call hook procedure to check whether is it OK to delete this DC */
 672     if (    dc->hookThunk && !(dc->w.flags & (DC_SAVED | DC_MEMORY))
 673          && dc->hookThunk( hdc, DCHC_DELETEDC, dc->dwHookData, 0 ) == FALSE )
 674     {
 675         GDI_HEAP_UNLOCK( hdc );
 676         return FALSE;
 677     }
 678
 679     while (dc->saveLevel)
 680     {
 681         DC * dcs;
 682         HDC16 hdcs = dc->header.hNext;
 683         if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC ))) break;
 684         dc->header.hNext = dcs->header.hNext;
 685         dc->saveLevel--;
 686         DeleteDC( hdcs );
 687     }
 688
 689     if (!(dc->w.flags & DC_SAVED))
 690     {
 691         SelectObject( hdc, STOCK_BLACK_PEN );
 692         SelectObject( hdc, STOCK_WHITE_BRUSH );
 693         SelectObject( hdc, STOCK_SYSTEM_FONT );
 694         if (dc->funcs->pDeleteDC) dc->funcs->pDeleteDC(dc);
 695     }
 696
 697     if (dc->w.hClipRgn) DeleteObject( dc->w.hClipRgn );
 698     if (dc->w.hVisRgn) DeleteObject( dc->w.hVisRgn );
 699     if (dc->w.hGCClipRgn) DeleteObject( dc->w.hGCClipRgn );
 700     if (dc->w.pAbortProc) THUNK_Free( (FARPROC)dc->w.pAbortProc );
 701     if (dc->hookThunk) THUNK_Free( (FARPROC)dc->hookThunk );
 702     PATH_DestroyGdiPath(&dc->w.path);
 703
 704     return GDI_FreeObject( hdc );
 705 }
 706
 707
 708 /***********************************************************************
 709  *           ResetDC16    (GDI.376)
 710  */
 711 HDC16 WINAPI ResetDC16( HDC16 hdc, const DEVMODEA *devmode )
 712 {
 713     FIXME("stub\n" );
 714     return hdc;
 715 }
 716
 717
 718 /***********************************************************************
 719  *           ResetDC32A    (GDI32.287)
 720  */
 721 HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
 722 {
 723     FIXME("stub\n" );
 724     return hdc;
 725 }
 726
 727
 728 /***********************************************************************
 729  *           ResetDC32W    (GDI32.288)
 730  */
 731 HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
 732 {
 733     FIXME("stub\n" );
 734     return hdc;
 735 }
 736
 737
 738 /***********************************************************************
 739  *           GetDeviceCaps16    (GDI.80)
 740  */
 741 INT16 WINAPI GetDeviceCaps16( HDC16 hdc, INT16 cap )
 742 {
 743     return GetDeviceCaps( hdc, cap );
 744 }
 745
 746
 747 /***********************************************************************
 748  *           GetDeviceCaps32    (GDI32.171)
 749  */
 750 INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
 751 {
 752     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 753     INT ret;
 754     POINT pt;
 755
 756     if (!dc) return 0;
 757
 758     /* Device capabilities for the printer */
 759     switch (cap)
 760     {
 761     case PHYSICALWIDTH:
 762         if(Escape(hdc, GETPHYSPAGESIZE, 0, NULL, (LPVOID)&pt) > 0)
 763             return pt.x;
 764     case PHYSICALHEIGHT:
 765         if(Escape(hdc, GETPHYSPAGESIZE, 0, NULL, (LPVOID)&pt) > 0)
 766             return pt.y;
 767     case PHYSICALOFFSETX:
 768         if(Escape(hdc, GETPRINTINGOFFSET, 0, NULL, (LPVOID)&pt) > 0)
 769             return pt.x;
 770     case PHYSICALOFFSETY:
 771         if(Escape(hdc, GETPRINTINGOFFSET, 0, NULL, (LPVOID)&pt) > 0)
 772             return pt.y;
 773     case SCALINGFACTORX:
 774         if(Escape(hdc, GETSCALINGFACTOR, 0, NULL, (LPVOID)&pt) > 0)
 775             return pt.x;
 776     case SCALINGFACTORY:
 777         if(Escape(hdc, GETSCALINGFACTOR, 0, NULL, (LPVOID)&pt) > 0)
 778             return pt.y;
 779     }
 780
 781     if ((cap < 0) || (cap > sizeof(DeviceCaps)-sizeof(WORD)))
 782     {
 783       GDI_HEAP_UNLOCK( hdc );
 784       return 0;
 785     }
 786
 787     TRACE("(%04x,%d): returning %d\n",
 788             hdc, cap, *(WORD *)(((char *)dc->w.devCaps) + cap) );
 789     ret = *(WORD *)(((char *)dc->w.devCaps) + cap);
 790     GDI_HEAP_UNLOCK( hdc );
 791     return ret;
 792 }
 793
 794
 795 /***********************************************************************
 796  *           SetBkColor16    (GDI.1)
 797  */
 798 COLORREF WINAPI SetBkColor16( HDC16 hdc, COLORREF color )
 799 {
 800     return SetBkColor( hdc, color );
 801 }
 802
 803
 804 /***********************************************************************
 805  *           SetBkColor32    (GDI32.305)
 806  */
 807 COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
 808 {
 809     COLORREF oldColor;
 810     DC * dc = DC_GetDCPtr( hdc );
 811
 812     if (!dc) return 0x80000000;
 813     if (dc->funcs->pSetBkColor)
 814         oldColor = dc->funcs->pSetBkColor(dc, color);
 815     else {
 816         oldColor = dc->w.backgroundColor;
 817         dc->w.backgroundColor = color;
 818     }
 819     GDI_HEAP_UNLOCK( hdc );
 820     return oldColor;
 821 }
 822
 823
 824 /***********************************************************************
 825  *           SetTextColor16    (GDI.9)
 826  */
 827 COLORREF WINAPI SetTextColor16( HDC16 hdc, COLORREF color )
 828 {
 829     return SetTextColor( hdc, color );
 830 }
 831
 832
 833 /***********************************************************************
 834  *           SetTextColor32    (GDI32.338)
 835  */
 836 COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
 837 {
 838     COLORREF oldColor;
 839     DC * dc = DC_GetDCPtr( hdc );
 840
 841     if (!dc) return 0x80000000;
 842     if (dc->funcs->pSetTextColor)
 843         oldColor = dc->funcs->pSetTextColor(dc, color);
 844     else {
 845         oldColor = dc->w.textColor;
 846         dc->w.textColor = color;
 847     }
 848     GDI_HEAP_UNLOCK( hdc );
 849     return oldColor;
 850 }
 851
 852 /***********************************************************************
 853  *           SetTextAlign16    (GDI.346)
 854  */
 855 UINT16 WINAPI SetTextAlign16( HDC16 hdc, UINT16 align )
 856 {
 857     return SetTextAlign( hdc, align );
 858 }
 859
 860
 861 /***********************************************************************
 862  *           SetTextAlign    (GDI32.336)
 863  */
 864 UINT WINAPI SetTextAlign( HDC hdc, UINT align )
 865 {
 866     UINT prevAlign;
 867     DC *dc = DC_GetDCPtr( hdc );
 868     if (!dc) return 0x0;
 869     if (dc->funcs->pSetTextAlign)
 870         prevAlign = dc->funcs->pSetTextAlign(dc, align);
 871     else {
 872         prevAlign = dc->w.textAlign;
 873         dc->w.textAlign = align;
 874     }
 875     GDI_HEAP_UNLOCK( hdc );
 876     return prevAlign;
 877 }
 878
 879 /***********************************************************************
 880  *           GetDCOrgEx  (GDI32.168)
 881  */
 882 BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
 883 {
 884     DC * dc;
 885
 886     if (!lpp) return FALSE;
 887     if (!(dc = (DC *) GDI_GetObjPtr( hDC, DC_MAGIC ))) return FALSE;
 888
 889 #ifndef X_DISPLAY_MISSING
 890     if (!(dc->w.flags & DC_MEMORY))
 891     {
 892        X11DRV_PDEVICE *physDev;
 893        Window root;
 894        int w, h, border, depth;
 895
 896        physDev = (X11DRV_PDEVICE *) dc->physDev;
 897
 898        /* FIXME: this is not correct for managed windows */
 899        TSXGetGeometry( display, physDev->drawable, &root,
 900                     (int*)&lpp->x, (int*)&lpp->y, &w, &h, &border, &depth );
 901     }
 902     else
 903 #endif  /* !defined(X_DISPLAY_MISSING) */
 904       lpp->x = lpp->y = 0;
 905
 906     lpp->x += dc->w.DCOrgX; lpp->y += dc->w.DCOrgY;
 907     GDI_HEAP_UNLOCK( hDC );
 908     return TRUE;
 909 }
 910
 911
 912 /***********************************************************************
 913  *           GetDCOrg    (GDI.79)
 914  */
 915 DWORD WINAPI GetDCOrg16( HDC16 hdc )
 916 {
 917     POINT       pt;
 918     if( GetDCOrgEx( hdc, &pt) )
 919         return MAKELONG( (WORD)pt.x, (WORD)pt.y );
 920     return 0;
 921 }
 922
 923
 924 /***********************************************************************
 925  *           SetDCOrg    (GDI.117)
 926  */
 927 DWORD WINAPI SetDCOrg16( HDC16 hdc, INT16 x, INT16 y )
 928 {
 929     DWORD prevOrg;
 930     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 931     if (!dc) return 0;
 932     prevOrg = dc->w.DCOrgX | (dc->w.DCOrgY << 16);
 933     dc->w.DCOrgX = x;
 934     dc->w.DCOrgY = y;
 935     GDI_HEAP_UNLOCK( hdc );
 936     return prevOrg;
 937 }
 938
 939
 940 /***********************************************************************
 941  *           GetGraphicsMode    (GDI32.188)
 942  */
 943 INT WINAPI GetGraphicsMode( HDC hdc )
 944 {
 945     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 946     if (!dc) return 0;
 947     return dc->w.GraphicsMode;
 948 }
 949
 950
 951 /***********************************************************************
 952  *           SetGraphicsMode    (GDI32.317)
 953  */
 954 INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
 955 {
 956     INT ret;
 957     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 958
 959     /* One would think that setting the graphics mode to GM_COMPATIBLE
 960      * would also reset the world transformation matrix to the unity
 961      * matrix. However, in Windows, this is not the case. This doesn't
 962      * make a lot of sense to me, but that's the way it is.
 963      */
 964
 965     if (!dc) return 0;
 966     if ((mode <= 0) || (mode > GM_LAST)) return 0;
 967     ret = dc->w.GraphicsMode;
 968     dc->w.GraphicsMode = mode;
 969     return ret;
 970 }
 971
 972
 973 /***********************************************************************
 974  *           GetArcDirection16    (GDI.524)
 975  */
 976 INT16 WINAPI GetArcDirection16( HDC16 hdc )
 977 {
 978     return GetArcDirection( (HDC)hdc );
 979 }
 980
 981
 982 /***********************************************************************
 983  *           GetArcDirection32    (GDI32.141)
 984  */
 985 INT WINAPI GetArcDirection( HDC hdc )
 986 {
 987     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 988
 989     if (!dc)
 990         return 0;
 991
 992     return dc->w.ArcDirection;
 993 }
 994
 995
 996 /***********************************************************************
 997  *           SetArcDirection16    (GDI.525)
 998  */
 999 INT16 WINAPI SetArcDirection16( HDC16 hdc, INT16 nDirection )
1000 {
1001     return SetArcDirection( (HDC)hdc, (INT)nDirection );
1002 }
1003
1004
1005 /***********************************************************************
1006  *           SetArcDirection32    (GDI32.302)
1007  */
1008 INT WINAPI SetArcDirection( HDC hdc, INT nDirection )
1009 {
1010     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1011     INT nOldDirection;
1012
1013     if (!dc)
1014         return 0;
1015
1016     if (nDirection!=AD_COUNTERCLOCKWISE && nDirection!=AD_CLOCKWISE)
1017     {
1018         SetLastError(ERROR_INVALID_PARAMETER);
1019         return 0;
1020     }
1021
1022     nOldDirection = dc->w.ArcDirection;
1023     dc->w.ArcDirection = nDirection;
1024
1025     return nOldDirection;
1026 }
1027
1028
1029 /***********************************************************************
1030  *           GetWorldTransform    (GDI32.244)
1031  */
1032 BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
1033 {
1034     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1035
1036     if (!dc)
1037         return FALSE;
1038     if (!xform)
1039         return FALSE;
1040
1041     *xform = dc->w.xformWorld2Wnd;
1042
1043     return TRUE;
1044 }
1045
1046
1047 /***********************************************************************
1048  *           SetWorldTransform    (GDI32.346)
1049  */
1050 BOOL WINAPI SetWorldTransform( HDC hdc, const XFORM *xform )
1051 {
1052     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1053
1054     if (!dc)
1055     {
1056         SetLastError( ERROR_INVALID_HANDLE );
1057         return FALSE;
1058     }
1059
1060     if (!xform)
1061         return FALSE;
1062
1063     /* Check that graphics mode is GM_ADVANCED */
1064     if (dc->w.GraphicsMode!=GM_ADVANCED)
1065        return FALSE;
1066
1067     dc->w.xformWorld2Wnd = *xform;
1068
1069     DC_UpdateXforms( dc );
1070
1071     return TRUE;
1072 }
1073
1074
1075 /****************************************************************************
1076  * ModifyWorldTransform [GDI32.253]
1077  * Modifies the world transformation for a device context.
1078  *
1079  * PARAMS
1080  *    hdc   [I] Handle to device context
1081  *    xform [I] XFORM structure that will be used to modify the world
1082  *              transformation
1083  *    iMode [I] Specifies in what way to modify the world transformation
1084  *              Possible values:
1085  *              MWT_IDENTITY
1086  *                 Resets the world transformation to the identity matrix.
1087  *                 The parameter xform is ignored.
1088  *              MWT_LEFTMULTIPLY
1089  *                 Multiplies xform into the world transformation matrix from
1090  *                 the left.
1091  *              MWT_RIGHTMULTIPLY
1092  *                 Multiplies xform into the world transformation matrix from
1093  *                 the right.
1094  *
1095  * RETURNS STD
1096  */
1097 BOOL WINAPI ModifyWorldTransform( HDC hdc, const XFORM *xform,
1098     DWORD iMode )
1099 {
1100     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1101
1102     /* Check for illegal parameters */
1103     if (!dc)
1104     {
1105         SetLastError( ERROR_INVALID_HANDLE );
1106         return FALSE;
1107     }
1108     if (!xform)
1109         return FALSE;
1110
1111     /* Check that graphics mode is GM_ADVANCED */
1112     if (dc->w.GraphicsMode!=GM_ADVANCED)
1113        return FALSE;
1114
1115     switch (iMode)
1116     {
1117         case MWT_IDENTITY:
1118             dc->w.xformWorld2Wnd.eM11 = 1.0f;
1119             dc->w.xformWorld2Wnd.eM12 = 0.0f;
1120             dc->w.xformWorld2Wnd.eM21 = 0.0f;
1121             dc->w.xformWorld2Wnd.eM22 = 1.0f;
1122             dc->w.xformWorld2Wnd.eDx  = 0.0f;
1123             dc->w.xformWorld2Wnd.eDy  = 0.0f;
1124             break;
1125         case MWT_LEFTMULTIPLY:
1126             CombineTransform( &dc->w.xformWorld2Wnd, xform,
1127                 &dc->w.xformWorld2Wnd );
1128             break;
1129         case MWT_RIGHTMULTIPLY:
1130             CombineTransform( &dc->w.xformWorld2Wnd, &dc->w.xformWorld2Wnd,
1131                 xform );
1132             break;
1133         default:
1134             return FALSE;
1135     }
1136
1137     DC_UpdateXforms( dc );
1138
1139     return TRUE;
1140 }
1141
1142
1143 /****************************************************************************
1144  * CombineTransform [GDI32.20]
1145  * Combines two transformation matrices.
1146  *
1147  * PARAMS
1148  *    xformResult [O] Stores the result of combining the two matrices
1149  *    xform1      [I] Specifies the first matrix to apply
1150  *    xform2      [I] Specifies the second matrix to apply
1151  *
1152  * REMARKS
1153  *    The same matrix can be passed in for more than one of the parameters.
1154  *
1155  * RETURNS STD
1156  */
1157 BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1158     const XFORM *xform2 )
1159 {
1160     XFORM xformTemp;
1161
1162     /* Check for illegal parameters */
1163     if (!xformResult || !xform1 || !xform2)
1164         return FALSE;
1165
1166     /* Create the result in a temporary XFORM, since xformResult may be
1167      * equal to xform1 or xform2 */
1168     xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1169                      xform1->eM12 * xform2->eM21;
1170     xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1171                      xform1->eM12 * xform2->eM22;
1172     xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1173                      xform1->eM22 * xform2->eM21;
1174     xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1175                      xform1->eM22 * xform2->eM22;
1176     xformTemp.eDx  = xform1->eDx  * xform2->eM11 +
1177                      xform1->eDy  * xform2->eM21 +
1178                      xform2->eDx;
1179     xformTemp.eDy  = xform1->eDx  * xform2->eM12 +
1180                      xform1->eDy  * xform2->eM22 +
1181                      xform2->eDy;
1182
1183     /* Copy the result to xformResult */
1184     *xformResult = xformTemp;
1185
1186     return TRUE;
1187 }
1188
1189
1190 /***********************************************************************
1191  *           SetDCHook   (GDI.190)
1192  */
1193 /* ### start build ### */
1194 extern WORD CALLBACK GDI_CallTo16_word_wwll(FARPROC16,WORD,WORD,LONG,LONG);
1195 /* ### stop build ### */
1196 BOOL16 WINAPI SetDCHook( HDC16 hdc, FARPROC16 hookProc, DWORD dwHookData )
1197 {
1198     DC *dc = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC );
1199     if (!dc) return FALSE;
1200
1201     /*
1202      * Note: We store the original SEGPTR 'hookProc' as we need to be
1203      *       able to return it verbatim in GetDCHook,
1204      *
1205      *       On the other hand, we still call THUNK_Alloc and store the
1206      *       32-bit thunk into another DC member, because THUNK_Alloc
1207      *       recognizes the (typical) case that the 'hookProc' is indeed
1208      *       the 16-bit API entry point of a built-in routine (e.g. DCHook16)
1209      *
1210      *       We could perform that test every time the hook is about to
1211      *       be called (or else we could live with the 32->16->32 detour),
1212      *       but this way is the most efficient ...
1213      */
1214
1215     dc->hookProc = hookProc;
1216     dc->dwHookData = dwHookData;
1217
1218     THUNK_Free( (FARPROC)dc->hookThunk );
1219     dc->hookThunk = (DCHOOKPROC)
1220                     THUNK_Alloc( hookProc, (RELAY)GDI_CallTo16_word_wwll );
1221
1222     GDI_HEAP_UNLOCK( hdc );
1223     return TRUE;
1224 }
1225
1226
1227 /***********************************************************************
1228  *           GetDCHook   (GDI.191)
1229  */
1230 DWORD WINAPI GetDCHook( HDC16 hdc, FARPROC16 *phookProc )
1231 {
1232     DC *dc = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC );
1233     if (!dc) return 0;
1234     *phookProc = dc->hookProc;
1235     GDI_HEAP_UNLOCK( hdc );
1236     return dc->dwHookData;
1237 }
1238
1239
1240 /***********************************************************************
1241  *           SetHookFlags       (GDI.192)
1242  */
1243 WORD WINAPI SetHookFlags16(HDC16 hDC, WORD flags)
1244 {
1245     DC* dc = (DC*)GDI_GetObjPtr( hDC, DC_MAGIC );
1246
1247     if( dc )
1248     {
1249         WORD wRet = dc->w.flags & DC_DIRTY;
1250
1251         /* "Undocumented Windows" info is slightly confusing.
1252          */
1253
1254         TRACE("hDC %04x, flags %04x\n",hDC,flags);
1255
1256         if( flags & DCHF_INVALIDATEVISRGN )
1257             dc->w.flags |= DC_DIRTY;
1258         else if( flags & DCHF_VALIDATEVISRGN || !flags )
1259             dc->w.flags &= ~DC_DIRTY;
1260         GDI_HEAP_UNLOCK( hDC );
1261         return wRet;
1262     }
1263     return 0;
1264 }
1265
1266 /***********************************************************************
1267  *           SetICMMode    (GDI32.318)
1268  */
1269 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1270 {
1271 /*FIXME  Asuming that ICM is always off, and cannot be turned on */
1272     if (iEnableICM == ICM_OFF) return ICM_OFF;
1273     if (iEnableICM == ICM_ON) return 0;
1274     if (iEnableICM == ICM_QUERY) return ICM_OFF;
1275     return 0;
1276 }
1277
1278
1279 /***********************************************************************
1280  *           GetColorSpace    (GDI32.165)
1281  */
1282 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1283 {
1284 /*FIXME    Need to to whatever GetColorSpace actually does */
1285     return 0;
1286 }
1287
1288 /***********************************************************************
1289  *           CreateColorSpaceA    (GDI32.???)
1290  */
1291 HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
1292 {
1293   FIXME( "stub\n" );
1294   return 0;
1295 }
1296
1297 /***********************************************************************
1298  *           CreateColorSpaceW    (GDI32.???)
1299  */
1300 HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
1301 {
1302   FIXME( "stub\n" );
1303   return 0;
1304 }
1305
1306 /***********************************************************************
1307  *           DeleteColorSpace     (GDI32.???)
1308  */
1309 BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
1310 {
1311   FIXME( "stub\n" );
1312
1313   return True;
1314 }
1315
1316 /***********************************************************************
1317  *           SetColorSpace     (GDI32.???)
1318  */
1319 HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
1320 {
1321   FIXME( "stub\n" );
1322
1323   return hColorSpace;
1324 }
1325
1326 /***********************************************************************
1327  *           GetBoundsRect16    (GDI.194)
1328  */
1329 UINT16 WINAPI GetBoundsRect16(HDC16 hdc, LPRECT16 rect, UINT16 flags)
1330 {
1331     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1332 }
1333
1334 /***********************************************************************
1335  *           GetBoundsRect32    (GDI32.147)
1336  */
1337 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1338 {
1339     FIXME("(): stub\n");
1340     return DCB_RESET;   /* bounding rectangle always empty */
1341 }
1342
1343 /***********************************************************************
1344  *           SetBoundsRect16    (GDI.193)
1345  */
1346 UINT16 WINAPI SetBoundsRect16(HDC16 hdc, const RECT16* rect, UINT16 flags)
1347 {
1348     if ( (flags & DCB_ACCUMULATE) || (flags & DCB_ENABLE) )
1349         FIXME("(%04x, %p, %04x): stub\n", hdc, rect, flags );
1350
1351     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1352 }
1353
1354 /***********************************************************************
1355  *           SetBoundsRect32    (GDI32.307)
1356  */
1357 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1358 {
1359     FIXME("(): stub\n");
1360     return DCB_DISABLE;   /* bounding rectangle always empty */
1361 }
1362
1363 /***********************************************************************
1364  *           Death    (GDI.121)
1365  *
1366  * Disables GDI, switches back to text mode.
1367  * We don't have to do anything here,
1368  * just let console support handle everything
1369  */
1370 void WINAPI Death16(HDC16 hDC)
1371 {
1372     MESSAGE("Death(%04x) called. Application enters text mode...\n", hDC);
1373 }
1374
1375 /***********************************************************************
1376  *           Resurrection    (GDI.122)
1377  *
1378  * Restores GDI functionality
1379  */
1380 void WINAPI Resurrection16(HDC16 hDC,
1381                            WORD w1, WORD w2, WORD w3, WORD w4, WORD w5, WORD w6)
1382 {
1383     MESSAGE("Resurrection(%04x, %04x, %04x, %04x, %04x, %04x, %04x) called. Application left text mode.\n", hDC, w1, w2, w3, w4, w5, w6);
1384 }
1385
1386 /***********************************************************************
1387  *           GetLayout    (GDI32.321)
1388  *
1389  * Gets left->right or right->left text layout flags of a dc.
1390  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1391  *
1392  */
1393 DWORD WINAPI GetLayout(HDC hdc)
1394 {
1395     FIXME("(%08x): stub\n", hdc);
1396     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1397     return 0;
1398 }
1399
1400 /***********************************************************************
1401  *           SetLayout    (GDI32.450)
1402  *
1403  * Sets left->right or right->left text layout flags of a dc.
1404  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1405  *
1406  */
1407 DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
1408 {
1409     FIXME("(%08x,%08lx): stub\n", hdc, layout);
1410     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1411     return 0;
1412 }