objects/dc.c

   1 /*
   2  * GDI Device Context functions
   3  *
   4  * Copyright 1993 Alexandre Julliard
   5  *
   6  */
   7
   8 #ifndef X_DISPLAY_MISSING
   9 #include "ts_xlib.h"
  10 #include "x11drv.h"
  11 #endif  /* !defined(X_DISPLAY_MISSING) */
  12
  13 #include <stdlib.h>
  14 #include <string.h>
  15 #include "dc.h"
  16 #include "gdi.h"
  17 #include "heap.h"
  18 #include "debug.h"
  19 #include "font.h"
  20 #include "winerror.h"
  21 #include "wine/winuser16.h"
  22
  23 DEFAULT_DEBUG_CHANNEL(dc)
  24
  25 /***********************************************************************
  26  *           DC_Init_DC_INFO
  27  *
  28  * Fill the WIN_DC_INFO structure.
  29  */
  30 static void DC_Init_DC_INFO( WIN_DC_INFO *win_dc_info )
  31 {
  32     win_dc_info->flags               = 0;
  33     win_dc_info->devCaps             = NULL;
  34     win_dc_info->hClipRgn            = 0;
  35     win_dc_info->hVisRgn             = 0;
  36     win_dc_info->hGCClipRgn          = 0;
  37     win_dc_info->hPen                = STOCK_BLACK_PEN;
  38     win_dc_info->hBrush              = STOCK_WHITE_BRUSH;
  39     win_dc_info->hFont               = STOCK_SYSTEM_FONT;
  40     win_dc_info->hBitmap             = 0;
  41     win_dc_info->hFirstBitmap        = 0;
  42     win_dc_info->hDevice             = 0;
  43     win_dc_info->hPalette            = STOCK_DEFAULT_PALETTE;
  44     win_dc_info->ROPmode             = R2_COPYPEN;
  45     win_dc_info->polyFillMode        = ALTERNATE;
  46     win_dc_info->stretchBltMode      = BLACKONWHITE;
  47     win_dc_info->relAbsMode          = ABSOLUTE;
  48     win_dc_info->backgroundMode      = OPAQUE;
  49     win_dc_info->backgroundColor     = RGB( 255, 255, 255 );
  50     win_dc_info->textColor           = RGB( 0, 0, 0 );
  51     win_dc_info->brushOrgX           = 0;
  52     win_dc_info->brushOrgY           = 0;
  53     win_dc_info->textAlign           = TA_LEFT | TA_TOP | TA_NOUPDATECP;
  54     win_dc_info->charExtra           = 0;
  55     win_dc_info->breakTotalExtra     = 0;
  56     win_dc_info->breakCount          = 0;
  57     win_dc_info->breakExtra          = 0;
  58     win_dc_info->breakRem            = 0;
  59     win_dc_info->bitsPerPixel        = 1;
  60     win_dc_info->MapMode             = MM_TEXT;
  61     win_dc_info->GraphicsMode        = GM_COMPATIBLE;
  62     win_dc_info->DCOrgX              = 0;
  63     win_dc_info->DCOrgY              = 0;
  64     win_dc_info->lpfnPrint           = NULL;
  65     win_dc_info->CursPosX            = 0;
  66     win_dc_info->CursPosY            = 0;
  67     win_dc_info->ArcDirection        = AD_COUNTERCLOCKWISE;
  68     win_dc_info->xformWorld2Wnd.eM11 = 1.0f;
  69     win_dc_info->xformWorld2Wnd.eM12 = 0.0f;
  70     win_dc_info->xformWorld2Wnd.eM21 = 0.0f;
  71     win_dc_info->xformWorld2Wnd.eM22 = 1.0f;
  72     win_dc_info->xformWorld2Wnd.eDx  = 0.0f;
  73     win_dc_info->xformWorld2Wnd.eDy  = 0.0f;
  74     win_dc_info->xformWorld2Vport    = win_dc_info->xformWorld2Wnd;
  75     win_dc_info->xformVport2World    = win_dc_info->xformWorld2Wnd;
  76     win_dc_info->vport2WorldValid    = TRUE;
  77
  78     PATH_InitGdiPath(&win_dc_info->path);
  79 }
  80
  81
  82 /***********************************************************************
  83  *           DC_AllocDC
  84  */
  85 DC *DC_AllocDC( const DC_FUNCTIONS *funcs )
  86 {
  87     HDC16 hdc;
  88     DC *dc;
  89
  90     if (!(hdc = GDI_AllocObject( sizeof(DC), DC_MAGIC ))) return NULL;
  91     dc = (DC *) GDI_HEAP_LOCK( hdc );
  92
  93     dc->hSelf      = hdc;
  94     dc->funcs      = funcs;
  95     dc->physDev    = NULL;
  96     dc->saveLevel  = 0;
  97     dc->dwHookData = 0L;
  98     dc->hookProc   = NULL;
  99     dc->wndOrgX    = 0;
 100     dc->wndOrgY    = 0;
 101     dc->wndExtX    = 1;
 102     dc->wndExtY    = 1;
 103     dc->vportOrgX  = 0;
 104     dc->vportOrgY  = 0;
 105     dc->vportExtX  = 1;
 106     dc->vportExtY  = 1;
 107
 108     DC_Init_DC_INFO( &dc->w );
 109
 110     return dc;
 111 }
 112
 113
 114
 115 /***********************************************************************
 116  *           DC_GetDCPtr
 117  */
 118 DC *DC_GetDCPtr( HDC hdc )
 119 {
 120     GDIOBJHDR *ptr = (GDIOBJHDR *)GDI_HEAP_LOCK( hdc );
 121     if (!ptr) return NULL;
 122     if ((ptr->wMagic == DC_MAGIC) || (ptr->wMagic == METAFILE_DC_MAGIC) ||
 123         (ptr->wMagic == ENHMETAFILE_DC_MAGIC))
 124         return (DC *)ptr;
 125     GDI_HEAP_UNLOCK( hdc );
 126     return NULL;
 127 }
 128
 129
 130 /***********************************************************************
 131  *           DC_InitDC
 132  *
 133  * Setup device-specific DC values for a newly created DC.
 134  */
 135 void DC_InitDC( DC* dc )
 136 {
 137     RealizeDefaultPalette16( dc->hSelf );
 138     SetTextColor( dc->hSelf, dc->w.textColor );
 139     SetBkColor( dc->hSelf, dc->w.backgroundColor );
 140     SelectObject( dc->hSelf, dc->w.hPen );
 141     SelectObject( dc->hSelf, dc->w.hBrush );
 142     SelectObject( dc->hSelf, dc->w.hFont );
 143     CLIPPING_UpdateGCRegion( dc );
 144 }
 145
 146
 147 /***********************************************************************
 148  *           DC_InvertXform
 149  *
 150  * Computes the inverse of the transformation xformSrc and stores it to
 151  * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
 152  * is singular.
 153  */
 154 static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
 155 {
 156     FLOAT determinant;
 157
 158     determinant = xformSrc->eM11*xformSrc->eM22 -
 159         xformSrc->eM12*xformSrc->eM21;
 160     if (determinant > -1e-12 && determinant < 1e-12)
 161         return FALSE;
 162
 163     xformDest->eM11 =  xformSrc->eM22 / determinant;
 164     xformDest->eM12 = -xformSrc->eM12 / determinant;
 165     xformDest->eM21 = -xformSrc->eM21 / determinant;
 166     xformDest->eM22 =  xformSrc->eM11 / determinant;
 167     xformDest->eDx  = -xformSrc->eDx * xformDest->eM11 -
 168                        xformSrc->eDy * xformDest->eM21;
 169     xformDest->eDy  = -xformSrc->eDx * xformDest->eM12 -
 170                        xformSrc->eDy * xformDest->eM22;
 171
 172     return TRUE;
 173 }
 174
 175
 176 /***********************************************************************
 177  *           DC_UpdateXforms
 178  *
 179  * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
 180  * fields of the specified DC by creating a transformation that
 181  * represents the current mapping mode and combining it with the DC's
 182  * world transform. This function should be called whenever the
 183  * parameters associated with the mapping mode (window and viewport
 184  * extents and origins) or the world transform change.
 185  */
 186 void DC_UpdateXforms( DC *dc )
 187 {
 188     XFORM xformWnd2Vport;
 189     FLOAT scaleX, scaleY;
 190
 191     /* Construct a transformation to do the window-to-viewport conversion */
 192     scaleX = (FLOAT)dc->vportExtX / (FLOAT)dc->wndExtX;
 193     scaleY = (FLOAT)dc->vportExtY / (FLOAT)dc->wndExtY;
 194     xformWnd2Vport.eM11 = scaleX;
 195     xformWnd2Vport.eM12 = 0.0;
 196     xformWnd2Vport.eM21 = 0.0;
 197     xformWnd2Vport.eM22 = scaleY;
 198     xformWnd2Vport.eDx  = (FLOAT)dc->vportOrgX -
 199         scaleX * (FLOAT)dc->wndOrgX;
 200     xformWnd2Vport.eDy  = (FLOAT)dc->vportOrgY -
 201         scaleY * (FLOAT)dc->wndOrgY;
 202
 203     /* Combine with the world transformation */
 204     CombineTransform( &dc->w.xformWorld2Vport, &dc->w.xformWorld2Wnd,
 205         &xformWnd2Vport );
 206
 207     /* Create inverse of world-to-viewport transformation */
 208     dc->w.vport2WorldValid = DC_InvertXform( &dc->w.xformWorld2Vport,
 209         &dc->w.xformVport2World );
 210 }
 211
 212
 213 /***********************************************************************
 214  *           GetDCState    (GDI.179)
 215  */
 216 HDC16 WINAPI GetDCState16( HDC16 hdc )
 217 {
 218     DC * newdc, * dc;
 219     HGDIOBJ16 handle;
 220
 221     if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return 0;
 222     if (!(handle = GDI_AllocObject( sizeof(DC), DC_MAGIC )))
 223     {
 224       GDI_HEAP_UNLOCK( hdc );
 225       return 0;
 226     }
 227     newdc = (DC *) GDI_HEAP_LOCK( handle );
 228
 229     TRACE(dc, "(%04x): returning %04x\n", hdc, handle );
 230
 231     newdc->w.flags            = dc->w.flags | DC_SAVED;
 232     newdc->w.devCaps          = dc->w.devCaps;
 233     newdc->w.hPen             = dc->w.hPen;
 234     newdc->w.hBrush           = dc->w.hBrush;
 235     newdc->w.hFont            = dc->w.hFont;
 236     newdc->w.hBitmap          = dc->w.hBitmap;
 237     newdc->w.hFirstBitmap     = dc->w.hFirstBitmap;
 238     newdc->w.hDevice          = dc->w.hDevice;
 239     newdc->w.hPalette         = dc->w.hPalette;
 240     newdc->w.totalExtent      = dc->w.totalExtent;
 241     newdc->w.bitsPerPixel     = dc->w.bitsPerPixel;
 242     newdc->w.ROPmode          = dc->w.ROPmode;
 243     newdc->w.polyFillMode     = dc->w.polyFillMode;
 244     newdc->w.stretchBltMode   = dc->w.stretchBltMode;
 245     newdc->w.relAbsMode       = dc->w.relAbsMode;
 246     newdc->w.backgroundMode   = dc->w.backgroundMode;
 247     newdc->w.backgroundColor  = dc->w.backgroundColor;
 248     newdc->w.textColor        = dc->w.textColor;
 249     newdc->w.brushOrgX        = dc->w.brushOrgX;
 250     newdc->w.brushOrgY        = dc->w.brushOrgY;
 251     newdc->w.textAlign        = dc->w.textAlign;
 252     newdc->w.charExtra        = dc->w.charExtra;
 253     newdc->w.breakTotalExtra  = dc->w.breakTotalExtra;
 254     newdc->w.breakCount       = dc->w.breakCount;
 255     newdc->w.breakExtra       = dc->w.breakExtra;
 256     newdc->w.breakRem         = dc->w.breakRem;
 257     newdc->w.MapMode          = dc->w.MapMode;
 258     newdc->w.GraphicsMode     = dc->w.GraphicsMode;
 259 #if 0
 260     /* Apparently, the DC origin is not changed by [GS]etDCState */
 261     newdc->w.DCOrgX           = dc->w.DCOrgX;
 262     newdc->w.DCOrgY           = dc->w.DCOrgY;
 263 #endif
 264     newdc->w.CursPosX         = dc->w.CursPosX;
 265     newdc->w.CursPosY         = dc->w.CursPosY;
 266     newdc->w.ArcDirection     = dc->w.ArcDirection;
 267     newdc->w.xformWorld2Wnd   = dc->w.xformWorld2Wnd;
 268     newdc->w.xformWorld2Vport = dc->w.xformWorld2Vport;
 269     newdc->w.xformVport2World = dc->w.xformVport2World;
 270     newdc->w.vport2WorldValid = dc->w.vport2WorldValid;
 271     newdc->wndOrgX            = dc->wndOrgX;
 272     newdc->wndOrgY            = dc->wndOrgY;
 273     newdc->wndExtX            = dc->wndExtX;
 274     newdc->wndExtY            = dc->wndExtY;
 275     newdc->vportOrgX          = dc->vportOrgX;
 276     newdc->vportOrgY          = dc->vportOrgY;
 277     newdc->vportExtX          = dc->vportExtX;
 278     newdc->vportExtY          = dc->vportExtY;
 279
 280     newdc->hSelf = (HDC)handle;
 281     newdc->saveLevel = 0;
 282
 283     PATH_InitGdiPath( &newdc->w.path );
 284
 285     /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
 286
 287     newdc->w.hGCClipRgn = newdc->w.hVisRgn = 0;
 288     if (dc->w.hClipRgn)
 289     {
 290         newdc->w.hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 291         CombineRgn( newdc->w.hClipRgn, dc->w.hClipRgn, 0, RGN_COPY );
 292     }
 293     else
 294         newdc->w.hClipRgn = 0;
 295     GDI_HEAP_UNLOCK( handle );
 296     GDI_HEAP_UNLOCK( hdc );
 297     return handle;
 298 }
 299
 300
 301 /***********************************************************************
 302  *           SetDCState    (GDI.180)
 303  */
 304 void WINAPI SetDCState16( HDC16 hdc, HDC16 hdcs )
 305 {
 306     DC *dc, *dcs;
 307
 308     if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return;
 309     if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC )))
 310     {
 311       GDI_HEAP_UNLOCK( hdc );
 312       return;
 313     }
 314     if (!dcs->w.flags & DC_SAVED)
 315     {
 316       GDI_HEAP_UNLOCK( hdc );
 317       GDI_HEAP_UNLOCK( hdcs );
 318       return;
 319     }
 320     TRACE(dc, "%04x %04x\n", hdc, hdcs );
 321
 322     dc->w.flags            = dcs->w.flags & ~DC_SAVED;
 323     dc->w.devCaps          = dcs->w.devCaps;
 324     dc->w.hFirstBitmap     = dcs->w.hFirstBitmap;
 325     dc->w.hDevice          = dcs->w.hDevice;
 326     dc->w.totalExtent      = dcs->w.totalExtent;
 327     dc->w.ROPmode          = dcs->w.ROPmode;
 328     dc->w.polyFillMode     = dcs->w.polyFillMode;
 329     dc->w.stretchBltMode   = dcs->w.stretchBltMode;
 330     dc->w.relAbsMode       = dcs->w.relAbsMode;
 331     dc->w.backgroundMode   = dcs->w.backgroundMode;
 332     dc->w.backgroundColor  = dcs->w.backgroundColor;
 333     dc->w.textColor        = dcs->w.textColor;
 334     dc->w.brushOrgX        = dcs->w.brushOrgX;
 335     dc->w.brushOrgY        = dcs->w.brushOrgY;
 336     dc->w.textAlign        = dcs->w.textAlign;
 337     dc->w.charExtra        = dcs->w.charExtra;
 338     dc->w.breakTotalExtra  = dcs->w.breakTotalExtra;
 339     dc->w.breakCount       = dcs->w.breakCount;
 340     dc->w.breakExtra       = dcs->w.breakExtra;
 341     dc->w.breakRem         = dcs->w.breakRem;
 342     dc->w.MapMode          = dcs->w.MapMode;
 343     dc->w.GraphicsMode     = dcs->w.GraphicsMode;
 344 #if 0
 345     /* Apparently, the DC origin is not changed by [GS]etDCState */
 346     dc->w.DCOrgX           = dcs->w.DCOrgX;
 347     dc->w.DCOrgY           = dcs->w.DCOrgY;
 348 #endif
 349     dc->w.CursPosX         = dcs->w.CursPosX;
 350     dc->w.CursPosY         = dcs->w.CursPosY;
 351     dc->w.ArcDirection     = dcs->w.ArcDirection;
 352     dc->w.xformWorld2Wnd   = dcs->w.xformWorld2Wnd;
 353     dc->w.xformWorld2Vport = dcs->w.xformWorld2Vport;
 354     dc->w.xformVport2World = dcs->w.xformVport2World;
 355     dc->w.vport2WorldValid = dcs->w.vport2WorldValid;
 356
 357     dc->wndOrgX            = dcs->wndOrgX;
 358     dc->wndOrgY            = dcs->wndOrgY;
 359     dc->wndExtX            = dcs->wndExtX;
 360     dc->wndExtY            = dcs->wndExtY;
 361     dc->vportOrgX          = dcs->vportOrgX;
 362     dc->vportOrgY          = dcs->vportOrgY;
 363     dc->vportExtX          = dcs->vportExtX;
 364     dc->vportExtY          = dcs->vportExtY;
 365
 366     if (!(dc->w.flags & DC_MEMORY)) dc->w.bitsPerPixel = dcs->w.bitsPerPixel;
 367
 368     if (dcs->w.hClipRgn)
 369     {
 370         if (!dc->w.hClipRgn) dc->w.hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 371         CombineRgn( dc->w.hClipRgn, dcs->w.hClipRgn, 0, RGN_COPY );
 372     }
 373     else
 374     {
 375         if (dc->w.hClipRgn) DeleteObject16( dc->w.hClipRgn );
 376         dc->w.hClipRgn = 0;
 377     }
 378     CLIPPING_UpdateGCRegion( dc );
 379
 380     SelectObject( hdc, dcs->w.hBitmap );
 381     SelectObject( hdc, dcs->w.hBrush );
 382     SelectObject( hdc, dcs->w.hFont );
 383     SelectObject( hdc, dcs->w.hPen );
 384     SetBkColor( hdc, dcs->w.backgroundColor);
 385     SetTextColor( hdc, dcs->w.textColor);
 386     GDISelectPalette16( hdc, dcs->w.hPalette, FALSE );
 387     GDI_HEAP_UNLOCK( hdc );
 388     GDI_HEAP_UNLOCK( hdcs );
 389 }
 390
 391
 392 /***********************************************************************
 393  *           SaveDC16    (GDI.30)
 394  */
 395 INT16 WINAPI SaveDC16( HDC16 hdc )
 396 {
 397     return (INT16)SaveDC( hdc );
 398 }
 399
 400
 401 /***********************************************************************
 402  *           SaveDC32    (GDI32.292)
 403  */
 404 INT WINAPI SaveDC( HDC hdc )
 405 {
 406     HDC hdcs;
 407     DC * dc, * dcs;
 408     INT ret;
 409
 410     dc = DC_GetDCPtr( hdc );
 411     if (!dc) return 0;
 412
 413     if(dc->funcs->pSaveDC)
 414         return dc->funcs->pSaveDC( dc );
 415
 416     if (!(hdcs = GetDCState16( hdc )))
 417     {
 418       GDI_HEAP_UNLOCK( hdc );
 419       return 0;
 420     }
 421     dcs = (DC *) GDI_HEAP_LOCK( hdcs );
 422
 423     /* Copy path. The reason why path saving / restoring is in SaveDC/
 424      * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
 425      * functions are only in Win16 (which doesn't have paths) and that
 426      * SetDCState doesn't allow us to signal an error (which can happen
 427      * when copying paths).
 428      */
 429     if (!PATH_AssignGdiPath( &dcs->w.path, &dc->w.path ))
 430     {
 431         GDI_HEAP_UNLOCK( hdc );
 432         GDI_HEAP_UNLOCK( hdcs );
 433         DeleteDC( hdcs );
 434         return 0;
 435     }
 436
 437     dcs->header.hNext = dc->header.hNext;
 438     dc->header.hNext = hdcs;
 439     TRACE(dc, "(%04x): returning %d\n", hdc, dc->saveLevel+1 );
 440     ret = ++dc->saveLevel;
 441     GDI_HEAP_UNLOCK( hdcs );
 442     GDI_HEAP_UNLOCK( hdc );
 443     return ret;
 444 }
 445
 446
 447 /***********************************************************************
 448  *           RestoreDC16    (GDI.39)
 449  */
 450 BOOL16 WINAPI RestoreDC16( HDC16 hdc, INT16 level )
 451 {
 452     return RestoreDC( hdc, level );
 453 }
 454
 455
 456 /***********************************************************************
 457  *           RestoreDC32    (GDI32.290)
 458  */
 459 BOOL WINAPI RestoreDC( HDC hdc, INT level )
 460 {
 461     DC * dc, * dcs;
 462     BOOL success;
 463
 464     TRACE(dc, "%04x %d\n", hdc, level );
 465     dc = DC_GetDCPtr( hdc );
 466     if(!dc) return FALSE;
 467     if(dc->funcs->pRestoreDC)
 468         return dc->funcs->pRestoreDC( dc, level );
 469
 470     if (level == -1) level = dc->saveLevel;
 471     if ((level < 1) || (level > dc->saveLevel))
 472     {
 473       GDI_HEAP_UNLOCK( hdc );
 474       return FALSE;
 475     }
 476
 477     success=TRUE;
 478     while (dc->saveLevel >= level)
 479     {
 480         HDC16 hdcs = dc->header.hNext;
 481         if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC )))
 482         {
 483           GDI_HEAP_UNLOCK( hdc );
 484           return FALSE;
 485         }
 486         dc->header.hNext = dcs->header.hNext;
 487         if (--dc->saveLevel < level)
 488         {
 489             SetDCState16( hdc, hdcs );
 490             if (!PATH_AssignGdiPath( &dc->w.path, &dcs->w.path ))
 491                 /* FIXME: This might not be quite right, since we're
 492                  * returning FALSE but still destroying the saved DC state */
 493                 success=FALSE;
 494         }
 495         DeleteDC( hdcs );
 496     }
 497     GDI_HEAP_UNLOCK( hdc );
 498     return success;
 499 }
 500
 501
 502 /***********************************************************************
 503  *           CreateDC16    (GDI.53)
 504  */
 505 HDC16 WINAPI CreateDC16( LPCSTR driver, LPCSTR device, LPCSTR output,
 506                          const DEVMODEA *initData )
 507 {
 508     DC * dc;
 509     const DC_FUNCTIONS *funcs;
 510     char buf[300];
 511
 512     if (device) {
 513         if(!DRIVER_GetDriverName( device, buf, sizeof(buf) )) return 0;
 514     } else
 515         strcpy(buf, driver);
 516
 517     if (!(funcs = DRIVER_FindDriver( buf ))) return 0;
 518     if (!(dc = DC_AllocDC( funcs ))) return 0;
 519     dc->w.flags = 0;
 520
 521     TRACE(dc, "(driver=%s, device=%s, output=%s): returning %04x\n",
 522                debugstr_a(driver), debugstr_a(device), debugstr_a(output), dc->hSelf );
 523
 524     if (dc->funcs->pCreateDC &&
 525         !dc->funcs->pCreateDC( dc, driver, device, output, initData ))
 526     {
 527         WARN(dc, "creation aborted by device\n" );
 528         GDI_HEAP_FREE( dc->hSelf );
 529         return 0;
 530     }
 531
 532     DC_InitDC( dc );
 533     GDI_HEAP_UNLOCK( dc->hSelf );
 534     return dc->hSelf;
 535 }
 536
 537
 538 /***********************************************************************
 539  *           CreateDC32A    (GDI32.)
 540  */
 541 HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
 542                           const DEVMODEA *initData )
 543 {
 544     return CreateDC16( driver, device, output, (const DEVMODEA *)initData );
 545 }
 546
 547
 548 /***********************************************************************
 549  *           CreateDC32W    (GDI32.)
 550  */
 551 HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 552                           const DEVMODEW *initData )
 553 {
 554     LPSTR driverA = HEAP_strdupWtoA( GetProcessHeap(), 0, driver );
 555     LPSTR deviceA = HEAP_strdupWtoA( GetProcessHeap(), 0, device );
 556     LPSTR outputA = HEAP_strdupWtoA( GetProcessHeap(), 0, output );
 557     HDC res = CreateDC16( driverA, deviceA, outputA,
 558                             (const DEVMODEA *)initData /*FIXME*/ );
 559     HeapFree( GetProcessHeap(), 0, driverA );
 560     HeapFree( GetProcessHeap(), 0, deviceA );
 561     HeapFree( GetProcessHeap(), 0, outputA );
 562     return res;
 563 }
 564
 565
 566 /***********************************************************************
 567  *           CreateIC16    (GDI.153)
 568  */
 569 HDC16 WINAPI CreateIC16( LPCSTR driver, LPCSTR device, LPCSTR output,
 570                          const DEVMODEA* initData )
 571 {
 572       /* Nothing special yet for ICs */
 573     return CreateDC16( driver, device, output, initData );
 574 }
 575
 576
 577 /***********************************************************************
 578  *           CreateIC32A    (GDI32.49)
 579  */
 580 HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
 581                           const DEVMODEA* initData )
 582 {
 583       /* Nothing special yet for ICs */
 584     return CreateDCA( driver, device, output, initData );
 585 }
 586
 587
 588 /***********************************************************************
 589  *           CreateIC32W    (GDI32.50)
 590  */
 591 HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 592                           const DEVMODEW* initData )
 593 {
 594       /* Nothing special yet for ICs */
 595     return CreateDCW( driver, device, output, initData );
 596 }
 597
 598
 599 /***********************************************************************
 600  *           CreateCompatibleDC16    (GDI.52)
 601  */
 602 HDC16 WINAPI CreateCompatibleDC16( HDC16 hdc )
 603 {
 604     return (HDC16)CreateCompatibleDC( hdc );
 605 }
 606
 607
 608 /***********************************************************************
 609  *           CreateCompatibleDC32   (GDI32.31)
 610  */
 611 HDC WINAPI CreateCompatibleDC( HDC hdc )
 612 {
 613     DC *dc, *origDC;
 614     HBITMAP hbitmap;
 615     const DC_FUNCTIONS *funcs;
 616
 617     if ((origDC = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC ))) funcs = origDC->funcs;
 618     else funcs = DRIVER_FindDriver( "DISPLAY" );
 619     if (!funcs) return 0;
 620
 621     if (!(dc = DC_AllocDC( funcs ))) return 0;
 622
 623     TRACE(dc, "(%04x): returning %04x\n",
 624                hdc, dc->hSelf );
 625
 626       /* Create default bitmap */
 627     if (!(hbitmap = CreateBitmap( 1, 1, 1, 1, NULL )))
 628     {
 629         GDI_HEAP_FREE( dc->hSelf );
 630         return 0;
 631     }
 632     dc->w.flags        = DC_MEMORY;
 633     dc->w.bitsPerPixel = 1;
 634     dc->w.hBitmap      = hbitmap;
 635     dc->w.hFirstBitmap = hbitmap;
 636
 637     if (dc->funcs->pCreateDC &&
 638         !dc->funcs->pCreateDC( dc, NULL, NULL, NULL, NULL ))
 639     {
 640         WARN(dc, "creation aborted by device\n");
 641         DeleteObject( hbitmap );
 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(dc, "%04x\n", hdc );
 670
 671     /* Call hook procedure to check whether is it OK to delete this DC */
 672     if (    dc->hookProc && !(dc->w.flags & (DC_SAVED | DC_MEMORY))
 673          && dc->hookProc( 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->w.flags & DC_MEMORY) DeleteObject( dc->w.hFirstBitmap );
 695         if (dc->funcs->pDeleteDC) dc->funcs->pDeleteDC(dc);
 696     }
 697
 698     if (dc->w.hClipRgn) DeleteObject( dc->w.hClipRgn );
 699     if (dc->w.hVisRgn) DeleteObject( dc->w.hVisRgn );
 700     if (dc->w.hGCClipRgn) DeleteObject( dc->w.hGCClipRgn );
 701
 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(dc, "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(dc, "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(dc, "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(dc, "(%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 BOOL16 WINAPI SetDCHook( HDC16 hdc, FARPROC16 hookProc, DWORD dwHookData )
1194 {
1195     DC *dc = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC );
1196
1197     TRACE(dc, "hookProc %08x, default is %08x\n",
1198                 (UINT)hookProc, (UINT)DCHook16 );
1199
1200     if (!dc) return FALSE;
1201     dc->hookProc = hookProc;
1202     dc->dwHookData = dwHookData;
1203     GDI_HEAP_UNLOCK( hdc );
1204     return TRUE;
1205 }
1206
1207
1208 /***********************************************************************
1209  *           GetDCHook   (GDI.191)
1210  */
1211 DWORD WINAPI GetDCHook( HDC16 hdc, FARPROC16 *phookProc )
1212 {
1213     DC *dc = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC );
1214     if (!dc) return 0;
1215     *phookProc = dc->hookProc;
1216     GDI_HEAP_UNLOCK( hdc );
1217     return dc->dwHookData;
1218 }
1219
1220
1221 /***********************************************************************
1222  *           SetHookFlags       (GDI.192)
1223  */
1224 WORD WINAPI SetHookFlags16(HDC16 hDC, WORD flags)
1225 {
1226     DC* dc = (DC*)GDI_GetObjPtr( hDC, DC_MAGIC );
1227
1228     if( dc )
1229     {
1230         WORD wRet = dc->w.flags & DC_DIRTY;
1231
1232         /* "Undocumented Windows" info is slightly confusing.
1233          */
1234
1235         TRACE(dc,"hDC %04x, flags %04x\n",hDC,flags);
1236
1237         if( flags & DCHF_INVALIDATEVISRGN )
1238             dc->w.flags |= DC_DIRTY;
1239         else if( flags & DCHF_VALIDATEVISRGN || !flags )
1240             dc->w.flags &= ~DC_DIRTY;
1241         GDI_HEAP_UNLOCK( hDC );
1242         return wRet;
1243     }
1244     return 0;
1245 }
1246
1247 /***********************************************************************
1248  *           SetICMMode    (GDI32.318)
1249  */
1250 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1251 {
1252 /*FIXME  Asuming that ICM is always off, and cannot be turned on */
1253     if (iEnableICM == ICM_OFF) return ICM_OFF;
1254     if (iEnableICM == ICM_ON) return 0;
1255     if (iEnableICM == ICM_QUERY) return ICM_OFF;
1256     return 0;
1257 }
1258
1259
1260 /***********************************************************************
1261  *           GetColorSpace    (GDI32.165)
1262  */
1263 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1264 {
1265 /*FIXME    Need to to whatever GetColorSpace actually does */
1266     return 0;
1267 }
1268
1269 /***********************************************************************
1270  *           GetBoundsRect16    (GDI.194)
1271  */
1272 UINT16 WINAPI GetBoundsRect16(HDC16 hdc, LPRECT16 rect, UINT16 flags)
1273 {
1274     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1275 }
1276
1277 /***********************************************************************
1278  *           GetBoundsRect32    (GDI32.147)
1279  */
1280 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1281 {
1282     FIXME(dc, "(): stub\n");
1283     return DCB_RESET;   /* bounding rectangle always empty */
1284 }
1285
1286 /***********************************************************************
1287  *           SetBoundsRect16    (GDI.193)
1288  */
1289 UINT16 WINAPI SetBoundsRect16(HDC16 hdc, const RECT16* rect, UINT16 flags)
1290 {
1291     if ( (flags & DCB_ACCUMULATE) || (flags & DCB_ENABLE) )
1292         FIXME( dc, "(%04x, %p, %04x): stub\n", hdc, rect, flags );
1293
1294     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1295 }
1296
1297 /***********************************************************************
1298  *           SetBoundsRect32    (GDI32.307)
1299  */
1300 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1301 {
1302     FIXME(dc, "(): stub\n");
1303     return DCB_DISABLE;   /* bounding rectangle always empty */
1304 }
1305
1306 /***********************************************************************
1307  *           Death    (GDI.121)
1308  *
1309  * Disables GDI, switches back to text mode.
1310  * We don't have to do anything here,
1311  * just let console support handle everything
1312  */
1313 void WINAPI Death16(HDC16 hDC)
1314 {
1315     MSG("Death(%04x) called. Application enters text mode...\n", hDC);
1316 }
1317
1318 /***********************************************************************
1319  *           Resurrection    (GDI.122)
1320  *
1321  * Restores GDI functionality
1322  */
1323 void WINAPI Resurrection16(HDC16 hDC,
1324                            WORD w1, WORD w2, WORD w3, WORD w4, WORD w5, WORD w6)
1325 {
1326     MSG("Resurrection(%04x, %04x, %04x, %04x, %04x, %04x, %04x) called. Application left text mode.\n", hDC, w1, w2, w3, w4, w5, w6);
1327 }