objects/dc.c

   1 /*
   2  * GDI Device Context functions
   3  *
   4  * Copyright 1993 Alexandre Julliard
   5  *
   6  */
   7
   8 #include "config.h"
   9
  10 #include <stdlib.h>
  11 #include <string.h>
  12 #include "dc.h"
  13 #include "gdi.h"
  14 #include "heap.h"
  15 #include "debugtools.h"
  16 #include "font.h"
  17 #include "callback.h"
  18 #include "winerror.h"
  19 #include "windef.h"
  20 #include "wingdi.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->hDevice             = 0;
  42     win_dc_info->hPalette            = STOCK_DEFAULT_PALETTE;
  43     win_dc_info->ROPmode             = R2_COPYPEN;
  44     win_dc_info->polyFillMode        = ALTERNATE;
  45     win_dc_info->stretchBltMode      = BLACKONWHITE;
  46     win_dc_info->relAbsMode          = ABSOLUTE;
  47     win_dc_info->backgroundMode      = OPAQUE;
  48     win_dc_info->backgroundColor     = RGB( 255, 255, 255 );
  49     win_dc_info->textColor           = RGB( 0, 0, 0 );
  50     win_dc_info->brushOrgX           = 0;
  51     win_dc_info->brushOrgY           = 0;
  52     win_dc_info->textAlign           = TA_LEFT | TA_TOP | TA_NOUPDATECP;
  53     win_dc_info->charExtra           = 0;
  54     win_dc_info->breakTotalExtra     = 0;
  55     win_dc_info->breakCount          = 0;
  56     win_dc_info->breakExtra          = 0;
  57     win_dc_info->breakRem            = 0;
  58     win_dc_info->bitsPerPixel        = 1;
  59     win_dc_info->MapMode             = MM_TEXT;
  60     win_dc_info->GraphicsMode        = GM_COMPATIBLE;
  61     win_dc_info->DCOrgX              = 0;
  62     win_dc_info->DCOrgY              = 0;
  63     win_dc_info->pAbortProc          = NULL;
  64     win_dc_info->CursPosX            = 0;
  65     win_dc_info->CursPosY            = 0;
  66     win_dc_info->ArcDirection        = AD_COUNTERCLOCKWISE;
  67     win_dc_info->xformWorld2Wnd.eM11 = 1.0f;
  68     win_dc_info->xformWorld2Wnd.eM12 = 0.0f;
  69     win_dc_info->xformWorld2Wnd.eM21 = 0.0f;
  70     win_dc_info->xformWorld2Wnd.eM22 = 1.0f;
  71     win_dc_info->xformWorld2Wnd.eDx  = 0.0f;
  72     win_dc_info->xformWorld2Wnd.eDy  = 0.0f;
  73     win_dc_info->xformWorld2Vport    = win_dc_info->xformWorld2Wnd;
  74     win_dc_info->xformVport2World    = win_dc_info->xformWorld2Wnd;
  75     win_dc_info->vport2WorldValid    = TRUE;
  76
  77     PATH_InitGdiPath(&win_dc_info->path);
  78 }
  79
  80
  81 /***********************************************************************
  82  *           DC_AllocDC
  83  */
  84 DC *DC_AllocDC( const DC_FUNCTIONS *funcs )
  85 {
  86     HDC16 hdc;
  87     DC *dc;
  88
  89     if (!(hdc = GDI_AllocObject( sizeof(DC), DC_MAGIC ))) return NULL;
  90     dc = (DC *) GDI_HEAP_LOCK( hdc );
  91
  92     dc->hSelf      = hdc;
  93     dc->funcs      = funcs;
  94     dc->physDev    = NULL;
  95     dc->saveLevel  = 0;
  96     dc->dwHookData = 0L;
  97     dc->hookProc   = NULL;
  98     dc->hookThunk  = 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("(%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.hDevice          = dc->w.hDevice;
 238     newdc->w.hPalette         = dc->w.hPalette;
 239     newdc->w.totalExtent      = dc->w.totalExtent;
 240     newdc->w.bitsPerPixel     = dc->w.bitsPerPixel;
 241     newdc->w.ROPmode          = dc->w.ROPmode;
 242     newdc->w.polyFillMode     = dc->w.polyFillMode;
 243     newdc->w.stretchBltMode   = dc->w.stretchBltMode;
 244     newdc->w.relAbsMode       = dc->w.relAbsMode;
 245     newdc->w.backgroundMode   = dc->w.backgroundMode;
 246     newdc->w.backgroundColor  = dc->w.backgroundColor;
 247     newdc->w.textColor        = dc->w.textColor;
 248     newdc->w.brushOrgX        = dc->w.brushOrgX;
 249     newdc->w.brushOrgY        = dc->w.brushOrgY;
 250     newdc->w.textAlign        = dc->w.textAlign;
 251     newdc->w.charExtra        = dc->w.charExtra;
 252     newdc->w.breakTotalExtra  = dc->w.breakTotalExtra;
 253     newdc->w.breakCount       = dc->w.breakCount;
 254     newdc->w.breakExtra       = dc->w.breakExtra;
 255     newdc->w.breakRem         = dc->w.breakRem;
 256     newdc->w.MapMode          = dc->w.MapMode;
 257     newdc->w.GraphicsMode     = dc->w.GraphicsMode;
 258 #if 0
 259     /* Apparently, the DC origin is not changed by [GS]etDCState */
 260     newdc->w.DCOrgX           = dc->w.DCOrgX;
 261     newdc->w.DCOrgY           = dc->w.DCOrgY;
 262 #endif
 263     newdc->w.CursPosX         = dc->w.CursPosX;
 264     newdc->w.CursPosY         = dc->w.CursPosY;
 265     newdc->w.ArcDirection     = dc->w.ArcDirection;
 266     newdc->w.xformWorld2Wnd   = dc->w.xformWorld2Wnd;
 267     newdc->w.xformWorld2Vport = dc->w.xformWorld2Vport;
 268     newdc->w.xformVport2World = dc->w.xformVport2World;
 269     newdc->w.vport2WorldValid = dc->w.vport2WorldValid;
 270     newdc->wndOrgX            = dc->wndOrgX;
 271     newdc->wndOrgY            = dc->wndOrgY;
 272     newdc->wndExtX            = dc->wndExtX;
 273     newdc->wndExtY            = dc->wndExtY;
 274     newdc->vportOrgX          = dc->vportOrgX;
 275     newdc->vportOrgY          = dc->vportOrgY;
 276     newdc->vportExtX          = dc->vportExtX;
 277     newdc->vportExtY          = dc->vportExtY;
 278
 279     newdc->hSelf = (HDC)handle;
 280     newdc->saveLevel = 0;
 281
 282     PATH_InitGdiPath( &newdc->w.path );
 283
 284     newdc->w.pAbortProc = NULL;
 285
 286     /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
 287
 288     newdc->w.hGCClipRgn = newdc->w.hVisRgn = 0;
 289     if (dc->w.hClipRgn)
 290     {
 291         newdc->w.hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 292         CombineRgn( newdc->w.hClipRgn, dc->w.hClipRgn, 0, RGN_COPY );
 293     }
 294     else
 295         newdc->w.hClipRgn = 0;
 296     GDI_HEAP_UNLOCK( handle );
 297     GDI_HEAP_UNLOCK( hdc );
 298     return handle;
 299 }
 300
 301
 302 /***********************************************************************
 303  *           SetDCState    (GDI.180)
 304  */
 305 void WINAPI SetDCState16( HDC16 hdc, HDC16 hdcs )
 306 {
 307     DC *dc, *dcs;
 308
 309     if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return;
 310     if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC )))
 311     {
 312       GDI_HEAP_UNLOCK( hdc );
 313       return;
 314     }
 315     if (!dcs->w.flags & DC_SAVED)
 316     {
 317       GDI_HEAP_UNLOCK( hdc );
 318       GDI_HEAP_UNLOCK( hdcs );
 319       return;
 320     }
 321     TRACE("%04x %04x\n", hdc, hdcs );
 322
 323     dc->w.flags            = dcs->w.flags & ~DC_SAVED;
 324     dc->w.devCaps          = dcs->w.devCaps;
 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  *           SaveDC    (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("(%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  *           RestoreDC    (GDI32.290)
 458  */
 459 BOOL WINAPI RestoreDC( HDC hdc, INT level )
 460 {
 461     DC * dc, * dcs;
 462     BOOL success;
 463
 464     TRACE("%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("(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, buf, device, output, initData ))
 526     {
 527         WARN("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  *           CreateDCA    (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  *           CreateDCW    (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  *           CreateICA    (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  *           CreateICW    (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  *           CreateCompatibleDC   (GDI32.31)
 610  */
 611 HDC WINAPI CreateCompatibleDC( HDC hdc )
 612 {
 613     DC *dc, *origDC;
 614     const DC_FUNCTIONS *funcs;
 615
 616     if ((origDC = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC ))) funcs = origDC->funcs;
 617     else funcs = DRIVER_FindDriver( "DISPLAY" );
 618     if (!funcs) return 0;
 619
 620     if (!(dc = DC_AllocDC( funcs ))) return 0;
 621
 622     TRACE("(%04x): returning %04x\n",
 623                hdc, dc->hSelf );
 624
 625     dc->w.flags        = DC_MEMORY;
 626     dc->w.bitsPerPixel = 1;
 627     dc->w.hBitmap      = hPseudoStockBitmap;
 628
 629     /* Copy the driver-specific physical device info into
 630      * the new DC. The driver may use this read-only info
 631      * while creating the compatible DC below. */
 632     if (origDC)
 633         dc->physDev = origDC->physDev;
 634
 635     if (dc->funcs->pCreateDC &&
 636         !dc->funcs->pCreateDC( dc, NULL, NULL, NULL, NULL ))
 637     {
 638         WARN("creation aborted by device\n");
 639         GDI_HEAP_FREE( dc->hSelf );
 640         return 0;
 641     }
 642
 643     DC_InitDC( dc );
 644     GDI_HEAP_UNLOCK( dc->hSelf );
 645     return dc->hSelf;
 646 }
 647
 648
 649 /***********************************************************************
 650  *           DeleteDC16    (GDI.68)
 651  */
 652 BOOL16 WINAPI DeleteDC16( HDC16 hdc )
 653 {
 654     return DeleteDC( hdc );
 655 }
 656
 657
 658 /***********************************************************************
 659  *           DeleteDC    (GDI32.67)
 660  */
 661 BOOL WINAPI DeleteDC( HDC hdc )
 662 {
 663     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 664     if (!dc) return FALSE;
 665
 666     TRACE("%04x\n", hdc );
 667
 668     /* Call hook procedure to check whether is it OK to delete this DC */
 669     if (    dc->hookThunk && !(dc->w.flags & (DC_SAVED | DC_MEMORY))
 670          && dc->hookThunk( hdc, DCHC_DELETEDC, dc->dwHookData, 0 ) == FALSE )
 671     {
 672         GDI_HEAP_UNLOCK( hdc );
 673         return FALSE;
 674     }
 675
 676     while (dc->saveLevel)
 677     {
 678         DC * dcs;
 679         HDC16 hdcs = dc->header.hNext;
 680         if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC ))) break;
 681         dc->header.hNext = dcs->header.hNext;
 682         dc->saveLevel--;
 683         DeleteDC( hdcs );
 684     }
 685
 686     if (!(dc->w.flags & DC_SAVED))
 687     {
 688         SelectObject( hdc, STOCK_BLACK_PEN );
 689         SelectObject( hdc, STOCK_WHITE_BRUSH );
 690         SelectObject( hdc, STOCK_SYSTEM_FONT );
 691         if (dc->funcs->pDeleteDC) dc->funcs->pDeleteDC(dc);
 692     }
 693
 694     if (dc->w.hClipRgn) DeleteObject( dc->w.hClipRgn );
 695     if (dc->w.hVisRgn) DeleteObject( dc->w.hVisRgn );
 696     if (dc->w.hGCClipRgn) DeleteObject( dc->w.hGCClipRgn );
 697     if (dc->w.pAbortProc) THUNK_Free( (FARPROC)dc->w.pAbortProc );
 698     if (dc->hookThunk) THUNK_Free( (FARPROC)dc->hookThunk );
 699     PATH_DestroyGdiPath(&dc->w.path);
 700
 701     return GDI_FreeObject( hdc );
 702 }
 703
 704
 705 /***********************************************************************
 706  *           ResetDC16    (GDI.376)
 707  */
 708 HDC16 WINAPI ResetDC16( HDC16 hdc, const DEVMODEA *devmode )
 709 {
 710     FIXME("stub\n" );
 711     return hdc;
 712 }
 713
 714
 715 /***********************************************************************
 716  *           ResetDCA    (GDI32.287)
 717  */
 718 HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
 719 {
 720     FIXME("stub\n" );
 721     return hdc;
 722 }
 723
 724
 725 /***********************************************************************
 726  *           ResetDCW    (GDI32.288)
 727  */
 728 HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
 729 {
 730     FIXME("stub\n" );
 731     return hdc;
 732 }
 733
 734
 735 /***********************************************************************
 736  *           GetDeviceCaps16    (GDI.80)
 737  */
 738 INT16 WINAPI GetDeviceCaps16( HDC16 hdc, INT16 cap )
 739 {
 740     return GetDeviceCaps( hdc, cap );
 741 }
 742
 743
 744 /***********************************************************************
 745  *           GetDeviceCaps    (GDI32.171)
 746  */
 747 INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
 748 {
 749     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 750     INT ret;
 751     POINT pt;
 752
 753     if (!dc) return 0;
 754
 755     /* Device capabilities for the printer */
 756     switch (cap)
 757     {
 758     case PHYSICALWIDTH:
 759         if(Escape(hdc, GETPHYSPAGESIZE, 0, NULL, (LPVOID)&pt) > 0)
 760             return pt.x;
 761     case PHYSICALHEIGHT:
 762         if(Escape(hdc, GETPHYSPAGESIZE, 0, NULL, (LPVOID)&pt) > 0)
 763             return pt.y;
 764     case PHYSICALOFFSETX:
 765         if(Escape(hdc, GETPRINTINGOFFSET, 0, NULL, (LPVOID)&pt) > 0)
 766             return pt.x;
 767     case PHYSICALOFFSETY:
 768         if(Escape(hdc, GETPRINTINGOFFSET, 0, NULL, (LPVOID)&pt) > 0)
 769             return pt.y;
 770     case SCALINGFACTORX:
 771         if(Escape(hdc, GETSCALINGFACTOR, 0, NULL, (LPVOID)&pt) > 0)
 772             return pt.x;
 773     case SCALINGFACTORY:
 774         if(Escape(hdc, GETSCALINGFACTOR, 0, NULL, (LPVOID)&pt) > 0)
 775             return pt.y;
 776     }
 777
 778     if ((cap < 0) || (cap > sizeof(DeviceCaps)-sizeof(WORD)))
 779     {
 780       GDI_HEAP_UNLOCK( hdc );
 781       return 0;
 782     }
 783
 784     if (((cap>=46) && (cap<88)) || ((cap>=92) && (cap<104)))
 785         FIXME("(%04x,%d): unsupported DeviceCaps capability, will yield 0!\n",
 786                 hdc,cap
 787         );
 788     TRACE("(%04x,%d): returning %d\n",
 789             hdc, cap, *(WORD *)(((char *)dc->w.devCaps) + cap) );
 790     ret = *(WORD *)(((char *)dc->w.devCaps) + cap);
 791     GDI_HEAP_UNLOCK( hdc );
 792     return ret;
 793 }
 794
 795
 796 /***********************************************************************
 797  *           SetBkColor16    (GDI.1)
 798  */
 799 COLORREF WINAPI SetBkColor16( HDC16 hdc, COLORREF color )
 800 {
 801     return SetBkColor( hdc, color );
 802 }
 803
 804
 805 /***********************************************************************
 806  *           SetBkColor    (GDI32.305)
 807  */
 808 COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
 809 {
 810     COLORREF oldColor;
 811     DC * dc = DC_GetDCPtr( hdc );
 812
 813     if (!dc) return 0x80000000;
 814     if (dc->funcs->pSetBkColor)
 815         oldColor = dc->funcs->pSetBkColor(dc, color);
 816     else {
 817         oldColor = dc->w.backgroundColor;
 818         dc->w.backgroundColor = color;
 819     }
 820     GDI_HEAP_UNLOCK( hdc );
 821     return oldColor;
 822 }
 823
 824
 825 /***********************************************************************
 826  *           SetTextColor16    (GDI.9)
 827  */
 828 COLORREF WINAPI SetTextColor16( HDC16 hdc, COLORREF color )
 829 {
 830     return SetTextColor( hdc, color );
 831 }
 832
 833
 834 /***********************************************************************
 835  *           SetTextColor    (GDI32.338)
 836  */
 837 COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
 838 {
 839     COLORREF oldColor;
 840     DC * dc = DC_GetDCPtr( hdc );
 841
 842     if (!dc) return 0x80000000;
 843     if (dc->funcs->pSetTextColor)
 844         oldColor = dc->funcs->pSetTextColor(dc, color);
 845     else {
 846         oldColor = dc->w.textColor;
 847         dc->w.textColor = color;
 848     }
 849     GDI_HEAP_UNLOCK( hdc );
 850     return oldColor;
 851 }
 852
 853 /***********************************************************************
 854  *           SetTextAlign16    (GDI.346)
 855  */
 856 UINT16 WINAPI SetTextAlign16( HDC16 hdc, UINT16 align )
 857 {
 858     return SetTextAlign( hdc, align );
 859 }
 860
 861
 862 /***********************************************************************
 863  *           SetTextAlign    (GDI32.336)
 864  */
 865 UINT WINAPI SetTextAlign( HDC hdc, UINT align )
 866 {
 867     UINT prevAlign;
 868     DC *dc = DC_GetDCPtr( hdc );
 869     if (!dc) return 0x0;
 870     if (dc->funcs->pSetTextAlign)
 871         prevAlign = dc->funcs->pSetTextAlign(dc, align);
 872     else {
 873         prevAlign = dc->w.textAlign;
 874         dc->w.textAlign = align;
 875     }
 876     GDI_HEAP_UNLOCK( hdc );
 877     return prevAlign;
 878 }
 879
 880 /***********************************************************************
 881  *           GetDCOrgEx  (GDI32.168)
 882  */
 883 BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
 884 {
 885     DC * dc;
 886
 887     if (!lpp) return FALSE;
 888     if (!(dc = (DC *) GDI_GetObjPtr( hDC, DC_MAGIC ))) return FALSE;
 889
 890     lpp->x = lpp->y = 0;
 891     if (dc->funcs->pGetDCOrgEx) dc->funcs->pGetDCOrgEx( dc, lpp );
 892     lpp->x += dc->w.DCOrgX;
 893     lpp->y += dc->w.DCOrgY;
 894     GDI_HEAP_UNLOCK( hDC );
 895     return TRUE;
 896 }
 897
 898
 899 /***********************************************************************
 900  *           GetDCOrg    (GDI.79)
 901  */
 902 DWORD WINAPI GetDCOrg16( HDC16 hdc )
 903 {
 904     POINT       pt;
 905     if( GetDCOrgEx( hdc, &pt) )
 906         return MAKELONG( (WORD)pt.x, (WORD)pt.y );
 907     return 0;
 908 }
 909
 910
 911 /***********************************************************************
 912  *           SetDCOrg    (GDI.117)
 913  */
 914 DWORD WINAPI SetDCOrg16( HDC16 hdc, INT16 x, INT16 y )
 915 {
 916     DWORD prevOrg;
 917     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 918     if (!dc) return 0;
 919     prevOrg = dc->w.DCOrgX | (dc->w.DCOrgY << 16);
 920     dc->w.DCOrgX = x;
 921     dc->w.DCOrgY = y;
 922     GDI_HEAP_UNLOCK( hdc );
 923     return prevOrg;
 924 }
 925
 926
 927 /***********************************************************************
 928  *           GetGraphicsMode    (GDI32.188)
 929  */
 930 INT WINAPI GetGraphicsMode( HDC hdc )
 931 {
 932     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 933     if (!dc) return 0;
 934     return dc->w.GraphicsMode;
 935 }
 936
 937
 938 /***********************************************************************
 939  *           SetGraphicsMode    (GDI32.317)
 940  */
 941 INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
 942 {
 943     INT ret;
 944     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 945
 946     /* One would think that setting the graphics mode to GM_COMPATIBLE
 947      * would also reset the world transformation matrix to the unity
 948      * matrix. However, in Windows, this is not the case. This doesn't
 949      * make a lot of sense to me, but that's the way it is.
 950      */
 951
 952     if (!dc) return 0;
 953     if ((mode <= 0) || (mode > GM_LAST)) return 0;
 954     ret = dc->w.GraphicsMode;
 955     dc->w.GraphicsMode = mode;
 956     return ret;
 957 }
 958
 959
 960 /***********************************************************************
 961  *           GetArcDirection16    (GDI.524)
 962  */
 963 INT16 WINAPI GetArcDirection16( HDC16 hdc )
 964 {
 965     return GetArcDirection( (HDC)hdc );
 966 }
 967
 968
 969 /***********************************************************************
 970  *           GetArcDirection    (GDI32.141)
 971  */
 972 INT WINAPI GetArcDirection( HDC hdc )
 973 {
 974     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 975
 976     if (!dc)
 977         return 0;
 978
 979     return dc->w.ArcDirection;
 980 }
 981
 982
 983 /***********************************************************************
 984  *           SetArcDirection16    (GDI.525)
 985  */
 986 INT16 WINAPI SetArcDirection16( HDC16 hdc, INT16 nDirection )
 987 {
 988     return SetArcDirection( (HDC)hdc, (INT)nDirection );
 989 }
 990
 991
 992 /***********************************************************************
 993  *           SetArcDirection    (GDI32.302)
 994  */
 995 INT WINAPI SetArcDirection( HDC hdc, INT nDirection )
 996 {
 997     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 998     INT nOldDirection;
 999
1000     if (!dc)
1001         return 0;
1002
1003     if (nDirection!=AD_COUNTERCLOCKWISE && nDirection!=AD_CLOCKWISE)
1004     {
1005         SetLastError(ERROR_INVALID_PARAMETER);
1006         return 0;
1007     }
1008
1009     nOldDirection = dc->w.ArcDirection;
1010     dc->w.ArcDirection = nDirection;
1011
1012     return nOldDirection;
1013 }
1014
1015
1016 /***********************************************************************
1017  *           GetWorldTransform    (GDI32.244)
1018  */
1019 BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
1020 {
1021     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1022
1023     if (!dc)
1024         return FALSE;
1025     if (!xform)
1026         return FALSE;
1027
1028     *xform = dc->w.xformWorld2Wnd;
1029
1030     return TRUE;
1031 }
1032
1033
1034 /***********************************************************************
1035  *           SetWorldTransform    (GDI32.346)
1036  */
1037 BOOL WINAPI SetWorldTransform( HDC hdc, const XFORM *xform )
1038 {
1039     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1040
1041     if (!dc)
1042     {
1043         SetLastError( ERROR_INVALID_HANDLE );
1044         return FALSE;
1045     }
1046
1047     if (!xform)
1048         return FALSE;
1049
1050     /* Check that graphics mode is GM_ADVANCED */
1051     if (dc->w.GraphicsMode!=GM_ADVANCED)
1052        return FALSE;
1053
1054     dc->w.xformWorld2Wnd = *xform;
1055
1056     DC_UpdateXforms( dc );
1057
1058     return TRUE;
1059 }
1060
1061
1062 /****************************************************************************
1063  * ModifyWorldTransform [GDI32.253]
1064  * Modifies the world transformation for a device context.
1065  *
1066  * PARAMS
1067  *    hdc   [I] Handle to device context
1068  *    xform [I] XFORM structure that will be used to modify the world
1069  *              transformation
1070  *    iMode [I] Specifies in what way to modify the world transformation
1071  *              Possible values:
1072  *              MWT_IDENTITY
1073  *                 Resets the world transformation to the identity matrix.
1074  *                 The parameter xform is ignored.
1075  *              MWT_LEFTMULTIPLY
1076  *                 Multiplies xform into the world transformation matrix from
1077  *                 the left.
1078  *              MWT_RIGHTMULTIPLY
1079  *                 Multiplies xform into the world transformation matrix from
1080  *                 the right.
1081  *
1082  * RETURNS STD
1083  */
1084 BOOL WINAPI ModifyWorldTransform( HDC hdc, const XFORM *xform,
1085     DWORD iMode )
1086 {
1087     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1088
1089     /* Check for illegal parameters */
1090     if (!dc)
1091     {
1092         SetLastError( ERROR_INVALID_HANDLE );
1093         return FALSE;
1094     }
1095     if (!xform)
1096         return FALSE;
1097
1098     /* Check that graphics mode is GM_ADVANCED */
1099     if (dc->w.GraphicsMode!=GM_ADVANCED)
1100        return FALSE;
1101
1102     switch (iMode)
1103     {
1104         case MWT_IDENTITY:
1105             dc->w.xformWorld2Wnd.eM11 = 1.0f;
1106             dc->w.xformWorld2Wnd.eM12 = 0.0f;
1107             dc->w.xformWorld2Wnd.eM21 = 0.0f;
1108             dc->w.xformWorld2Wnd.eM22 = 1.0f;
1109             dc->w.xformWorld2Wnd.eDx  = 0.0f;
1110             dc->w.xformWorld2Wnd.eDy  = 0.0f;
1111             break;
1112         case MWT_LEFTMULTIPLY:
1113             CombineTransform( &dc->w.xformWorld2Wnd, xform,
1114                 &dc->w.xformWorld2Wnd );
1115             break;
1116         case MWT_RIGHTMULTIPLY:
1117             CombineTransform( &dc->w.xformWorld2Wnd, &dc->w.xformWorld2Wnd,
1118                 xform );
1119             break;
1120         default:
1121             return FALSE;
1122     }
1123
1124     DC_UpdateXforms( dc );
1125
1126     return TRUE;
1127 }
1128
1129
1130 /****************************************************************************
1131  * CombineTransform [GDI32.20]
1132  * Combines two transformation matrices.
1133  *
1134  * PARAMS
1135  *    xformResult [O] Stores the result of combining the two matrices
1136  *    xform1      [I] Specifies the first matrix to apply
1137  *    xform2      [I] Specifies the second matrix to apply
1138  *
1139  * REMARKS
1140  *    The same matrix can be passed in for more than one of the parameters.
1141  *
1142  * RETURNS STD
1143  */
1144 BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1145     const XFORM *xform2 )
1146 {
1147     XFORM xformTemp;
1148
1149     /* Check for illegal parameters */
1150     if (!xformResult || !xform1 || !xform2)
1151         return FALSE;
1152
1153     /* Create the result in a temporary XFORM, since xformResult may be
1154      * equal to xform1 or xform2 */
1155     xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1156                      xform1->eM12 * xform2->eM21;
1157     xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1158                      xform1->eM12 * xform2->eM22;
1159     xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1160                      xform1->eM22 * xform2->eM21;
1161     xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1162                      xform1->eM22 * xform2->eM22;
1163     xformTemp.eDx  = xform1->eDx  * xform2->eM11 +
1164                      xform1->eDy  * xform2->eM21 +
1165                      xform2->eDx;
1166     xformTemp.eDy  = xform1->eDx  * xform2->eM12 +
1167                      xform1->eDy  * xform2->eM22 +
1168                      xform2->eDy;
1169
1170     /* Copy the result to xformResult */
1171     *xformResult = xformTemp;
1172
1173     return TRUE;
1174 }
1175
1176
1177 /***********************************************************************
1178  *           SetDCHook   (GDI.190)
1179  */
1180 /* ### start build ### */
1181 extern WORD CALLBACK GDI_CallTo16_word_wwll(FARPROC16,WORD,WORD,LONG,LONG);
1182 /* ### stop build ### */
1183 BOOL16 WINAPI SetDCHook( HDC16 hdc, FARPROC16 hookProc, DWORD dwHookData )
1184 {
1185     DC *dc = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC );
1186     if (!dc) return FALSE;
1187
1188     /*
1189      * Note: We store the original SEGPTR 'hookProc' as we need to be
1190      *       able to return it verbatim in GetDCHook,
1191      *
1192      *       On the other hand, we still call THUNK_Alloc and store the
1193      *       32-bit thunk into another DC member, because THUNK_Alloc
1194      *       recognizes the (typical) case that the 'hookProc' is indeed
1195      *       the 16-bit API entry point of a built-in routine (e.g. DCHook16)
1196      *
1197      *       We could perform that test every time the hook is about to
1198      *       be called (or else we could live with the 32->16->32 detour),
1199      *       but this way is the most efficient ...
1200      */
1201
1202     dc->hookProc = hookProc;
1203     dc->dwHookData = dwHookData;
1204
1205     THUNK_Free( (FARPROC)dc->hookThunk );
1206     dc->hookThunk = (DCHOOKPROC)
1207                     THUNK_Alloc( hookProc, (RELAY)GDI_CallTo16_word_wwll );
1208
1209     GDI_HEAP_UNLOCK( hdc );
1210     return TRUE;
1211 }
1212
1213
1214 /***********************************************************************
1215  *           GetDCHook   (GDI.191)
1216  */
1217 DWORD WINAPI GetDCHook( HDC16 hdc, FARPROC16 *phookProc )
1218 {
1219     DC *dc = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC );
1220     if (!dc) return 0;
1221     *phookProc = dc->hookProc;
1222     GDI_HEAP_UNLOCK( hdc );
1223     return dc->dwHookData;
1224 }
1225
1226
1227 /***********************************************************************
1228  *           SetHookFlags       (GDI.192)
1229  */
1230 WORD WINAPI SetHookFlags16(HDC16 hDC, WORD flags)
1231 {
1232     DC* dc = (DC*)GDI_GetObjPtr( hDC, DC_MAGIC );
1233
1234     if( dc )
1235     {
1236         WORD wRet = dc->w.flags & DC_DIRTY;
1237
1238         /* "Undocumented Windows" info is slightly confusing.
1239          */
1240
1241         TRACE("hDC %04x, flags %04x\n",hDC,flags);
1242
1243         if( flags & DCHF_INVALIDATEVISRGN )
1244             dc->w.flags |= DC_DIRTY;
1245         else if( flags & DCHF_VALIDATEVISRGN || !flags )
1246             dc->w.flags &= ~DC_DIRTY;
1247         GDI_HEAP_UNLOCK( hDC );
1248         return wRet;
1249     }
1250     return 0;
1251 }
1252
1253 /***********************************************************************
1254  *           SetICMMode    (GDI32.318)
1255  */
1256 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1257 {
1258 /*FIXME  Asuming that ICM is always off, and cannot be turned on */
1259     if (iEnableICM == ICM_OFF) return ICM_OFF;
1260     if (iEnableICM == ICM_ON) return 0;
1261     if (iEnableICM == ICM_QUERY) return ICM_OFF;
1262     return 0;
1263 }
1264
1265
1266 /***********************************************************************
1267  *           GetColorSpace    (GDI32.165)
1268  */
1269 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1270 {
1271 /*FIXME    Need to to whatever GetColorSpace actually does */
1272     return 0;
1273 }
1274
1275 /***********************************************************************
1276  *           CreateColorSpaceA    (GDI32.???)
1277  */
1278 HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
1279 {
1280   FIXME( "stub\n" );
1281   return 0;
1282 }
1283
1284 /***********************************************************************
1285  *           CreateColorSpaceW    (GDI32.???)
1286  */
1287 HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
1288 {
1289   FIXME( "stub\n" );
1290   return 0;
1291 }
1292
1293 /***********************************************************************
1294  *           DeleteColorSpace     (GDI32.???)
1295  */
1296 BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
1297 {
1298   FIXME( "stub\n" );
1299
1300   return TRUE;
1301 }
1302
1303 /***********************************************************************
1304  *           SetColorSpace     (GDI32.???)
1305  */
1306 HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
1307 {
1308   FIXME( "stub\n" );
1309
1310   return hColorSpace;
1311 }
1312
1313 /***********************************************************************
1314  *           GetBoundsRect16    (GDI.194)
1315  */
1316 UINT16 WINAPI GetBoundsRect16(HDC16 hdc, LPRECT16 rect, UINT16 flags)
1317 {
1318     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1319 }
1320
1321 /***********************************************************************
1322  *           GetBoundsRect    (GDI32.147)
1323  */
1324 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1325 {
1326     FIXME("(): stub\n");
1327     return DCB_RESET;   /* bounding rectangle always empty */
1328 }
1329
1330 /***********************************************************************
1331  *           SetBoundsRect16    (GDI.193)
1332  */
1333 UINT16 WINAPI SetBoundsRect16(HDC16 hdc, const RECT16* rect, UINT16 flags)
1334 {
1335     if ( (flags & DCB_ACCUMULATE) || (flags & DCB_ENABLE) )
1336         FIXME("(%04x, %p, %04x): stub\n", hdc, rect, flags );
1337
1338     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1339 }
1340
1341 /***********************************************************************
1342  *           SetBoundsRect    (GDI32.307)
1343  */
1344 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1345 {
1346     FIXME("(): stub\n");
1347     return DCB_DISABLE;   /* bounding rectangle always empty */
1348 }
1349
1350 /***********************************************************************
1351  *           Death    (GDI.121)
1352  *
1353  * Disables GDI, switches back to text mode.
1354  * We don't have to do anything here,
1355  * just let console support handle everything
1356  */
1357 void WINAPI Death16(HDC16 hDC)
1358 {
1359     MESSAGE("Death(%04x) called. Application enters text mode...\n", hDC);
1360 }
1361
1362 /***********************************************************************
1363  *           Resurrection    (GDI.122)
1364  *
1365  * Restores GDI functionality
1366  */
1367 void WINAPI Resurrection16(HDC16 hDC,
1368                            WORD w1, WORD w2, WORD w3, WORD w4, WORD w5, WORD w6)
1369 {
1370     MESSAGE("Resurrection(%04x, %04x, %04x, %04x, %04x, %04x, %04x) called. Application left text mode.\n", hDC, w1, w2, w3, w4, w5, w6);
1371 }
1372
1373 /***********************************************************************
1374  *           GetLayout    (GDI32.321)
1375  *
1376  * Gets left->right or right->left text layout flags of a dc.
1377  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1378  *
1379  */
1380 DWORD WINAPI GetLayout(HDC hdc)
1381 {
1382     FIXME("(%08x): stub\n", hdc);
1383     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1384     return 0;
1385 }
1386
1387 /***********************************************************************
1388  *           SetLayout    (GDI32.450)
1389  *
1390  * Sets left->right or right->left text layout flags of a dc.
1391  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1392  *
1393  */
1394 DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
1395 {
1396     FIXME("(%08x,%08lx): stub\n", hdc, layout);
1397     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1398     return 0;
1399 }