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