objects/dc.c

   1 /*
   2  * GDI Device Context functions
   3  *
   4  * Copyright 1993 Alexandre Julliard
   5  *
   6  */
   7
   8 #include "config.h"
   9
  10 #ifndef X_DISPLAY_MISSING
  11 #include "ts_xlib.h"
  12 #include "x11drv.h"
  13 #endif  /* !defined(X_DISPLAY_MISSING) */
  14
  15 #include <stdlib.h>
  16 #include <string.h>
  17 #include "dc.h"
  18 #include "gdi.h"
  19 #include "heap.h"
  20 #include "debugtools.h"
  21 #include "font.h"
  22 #include "callback.h"
  23 #include "winerror.h"
  24 #include "windef.h"
  25 #include "wingdi.h"
  26 #include "wine/winuser16.h"
  27
  28 DEFAULT_DEBUG_CHANNEL(dc)
  29
  30 /***********************************************************************
  31  *           DC_Init_DC_INFO
  32  *
  33  * Fill the WIN_DC_INFO structure.
  34  */
  35 static void DC_Init_DC_INFO( WIN_DC_INFO *win_dc_info )
  36 {
  37     win_dc_info->flags               = 0;
  38     win_dc_info->devCaps             = NULL;
  39     win_dc_info->hClipRgn            = 0;
  40     win_dc_info->hVisRgn             = 0;
  41     win_dc_info->hGCClipRgn          = 0;
  42     win_dc_info->hPen                = STOCK_BLACK_PEN;
  43     win_dc_info->hBrush              = STOCK_WHITE_BRUSH;
  44     win_dc_info->hFont               = STOCK_SYSTEM_FONT;
  45     win_dc_info->hBitmap             = 0;
  46     win_dc_info->hDevice             = 0;
  47     win_dc_info->hPalette            = STOCK_DEFAULT_PALETTE;
  48     win_dc_info->ROPmode             = R2_COPYPEN;
  49     win_dc_info->polyFillMode        = ALTERNATE;
  50     win_dc_info->stretchBltMode      = BLACKONWHITE;
  51     win_dc_info->relAbsMode          = ABSOLUTE;
  52     win_dc_info->backgroundMode      = OPAQUE;
  53     win_dc_info->backgroundColor     = RGB( 255, 255, 255 );
  54     win_dc_info->textColor           = RGB( 0, 0, 0 );
  55     win_dc_info->brushOrgX           = 0;
  56     win_dc_info->brushOrgY           = 0;
  57     win_dc_info->textAlign           = TA_LEFT | TA_TOP | TA_NOUPDATECP;
  58     win_dc_info->charExtra           = 0;
  59     win_dc_info->breakTotalExtra     = 0;
  60     win_dc_info->breakCount          = 0;
  61     win_dc_info->breakExtra          = 0;
  62     win_dc_info->breakRem            = 0;
  63     win_dc_info->bitsPerPixel        = 1;
  64     win_dc_info->MapMode             = MM_TEXT;
  65     win_dc_info->GraphicsMode        = GM_COMPATIBLE;
  66     win_dc_info->DCOrgX              = 0;
  67     win_dc_info->DCOrgY              = 0;
  68     win_dc_info->pAbortProc          = NULL;
  69     win_dc_info->CursPosX            = 0;
  70     win_dc_info->CursPosY            = 0;
  71     win_dc_info->ArcDirection        = AD_COUNTERCLOCKWISE;
  72     win_dc_info->xformWorld2Wnd.eM11 = 1.0f;
  73     win_dc_info->xformWorld2Wnd.eM12 = 0.0f;
  74     win_dc_info->xformWorld2Wnd.eM21 = 0.0f;
  75     win_dc_info->xformWorld2Wnd.eM22 = 1.0f;
  76     win_dc_info->xformWorld2Wnd.eDx  = 0.0f;
  77     win_dc_info->xformWorld2Wnd.eDy  = 0.0f;
  78     win_dc_info->xformWorld2Vport    = win_dc_info->xformWorld2Wnd;
  79     win_dc_info->xformVport2World    = win_dc_info->xformWorld2Wnd;
  80     win_dc_info->vport2WorldValid    = TRUE;
  81
  82     PATH_InitGdiPath(&win_dc_info->path);
  83 }
  84
  85
  86 /***********************************************************************
  87  *           DC_AllocDC
  88  */
  89 DC *DC_AllocDC( const DC_FUNCTIONS *funcs )
  90 {
  91     HDC16 hdc;
  92     DC *dc;
  93
  94     if (!(hdc = GDI_AllocObject( sizeof(DC), DC_MAGIC ))) return NULL;
  95     dc = (DC *) GDI_HEAP_LOCK( hdc );
  96
  97     dc->hSelf      = hdc;
  98     dc->funcs      = funcs;
  99     dc->physDev    = NULL;
 100     dc->saveLevel  = 0;
 101     dc->dwHookData = 0L;
 102     dc->hookProc   = NULL;
 103     dc->hookThunk  = NULL;
 104     dc->wndOrgX    = 0;
 105     dc->wndOrgY    = 0;
 106     dc->wndExtX    = 1;
 107     dc->wndExtY    = 1;
 108     dc->vportOrgX  = 0;
 109     dc->vportOrgY  = 0;
 110     dc->vportExtX  = 1;
 111     dc->vportExtY  = 1;
 112
 113     DC_Init_DC_INFO( &dc->w );
 114
 115     return dc;
 116 }
 117
 118
 119
 120 /***********************************************************************
 121  *           DC_GetDCPtr
 122  */
 123 DC *DC_GetDCPtr( HDC hdc )
 124 {
 125     GDIOBJHDR *ptr = (GDIOBJHDR *)GDI_HEAP_LOCK( hdc );
 126     if (!ptr) return NULL;
 127     if ((ptr->wMagic == DC_MAGIC) || (ptr->wMagic == METAFILE_DC_MAGIC) ||
 128         (ptr->wMagic == ENHMETAFILE_DC_MAGIC))
 129         return (DC *)ptr;
 130     GDI_HEAP_UNLOCK( hdc );
 131     return NULL;
 132 }
 133
 134
 135 /***********************************************************************
 136  *           DC_InitDC
 137  *
 138  * Setup device-specific DC values for a newly created DC.
 139  */
 140 void DC_InitDC( DC* dc )
 141 {
 142     RealizeDefaultPalette16( dc->hSelf );
 143     SetTextColor( dc->hSelf, dc->w.textColor );
 144     SetBkColor( dc->hSelf, dc->w.backgroundColor );
 145     SelectObject( dc->hSelf, dc->w.hPen );
 146     SelectObject( dc->hSelf, dc->w.hBrush );
 147     SelectObject( dc->hSelf, dc->w.hFont );
 148     CLIPPING_UpdateGCRegion( dc );
 149 }
 150
 151
 152 /***********************************************************************
 153  *           DC_InvertXform
 154  *
 155  * Computes the inverse of the transformation xformSrc and stores it to
 156  * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
 157  * is singular.
 158  */
 159 static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
 160 {
 161     FLOAT determinant;
 162
 163     determinant = xformSrc->eM11*xformSrc->eM22 -
 164         xformSrc->eM12*xformSrc->eM21;
 165     if (determinant > -1e-12 && determinant < 1e-12)
 166         return FALSE;
 167
 168     xformDest->eM11 =  xformSrc->eM22 / determinant;
 169     xformDest->eM12 = -xformSrc->eM12 / determinant;
 170     xformDest->eM21 = -xformSrc->eM21 / determinant;
 171     xformDest->eM22 =  xformSrc->eM11 / determinant;
 172     xformDest->eDx  = -xformSrc->eDx * xformDest->eM11 -
 173                        xformSrc->eDy * xformDest->eM21;
 174     xformDest->eDy  = -xformSrc->eDx * xformDest->eM12 -
 175                        xformSrc->eDy * xformDest->eM22;
 176
 177     return TRUE;
 178 }
 179
 180
 181 /***********************************************************************
 182  *           DC_UpdateXforms
 183  *
 184  * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
 185  * fields of the specified DC by creating a transformation that
 186  * represents the current mapping mode and combining it with the DC's
 187  * world transform. This function should be called whenever the
 188  * parameters associated with the mapping mode (window and viewport
 189  * extents and origins) or the world transform change.
 190  */
 191 void DC_UpdateXforms( DC *dc )
 192 {
 193     XFORM xformWnd2Vport;
 194     FLOAT scaleX, scaleY;
 195
 196     /* Construct a transformation to do the window-to-viewport conversion */
 197     scaleX = (FLOAT)dc->vportExtX / (FLOAT)dc->wndExtX;
 198     scaleY = (FLOAT)dc->vportExtY / (FLOAT)dc->wndExtY;
 199     xformWnd2Vport.eM11 = scaleX;
 200     xformWnd2Vport.eM12 = 0.0;
 201     xformWnd2Vport.eM21 = 0.0;
 202     xformWnd2Vport.eM22 = scaleY;
 203     xformWnd2Vport.eDx  = (FLOAT)dc->vportOrgX -
 204         scaleX * (FLOAT)dc->wndOrgX;
 205     xformWnd2Vport.eDy  = (FLOAT)dc->vportOrgY -
 206         scaleY * (FLOAT)dc->wndOrgY;
 207
 208     /* Combine with the world transformation */
 209     CombineTransform( &dc->w.xformWorld2Vport, &dc->w.xformWorld2Wnd,
 210         &xformWnd2Vport );
 211
 212     /* Create inverse of world-to-viewport transformation */
 213     dc->w.vport2WorldValid = DC_InvertXform( &dc->w.xformWorld2Vport,
 214         &dc->w.xformVport2World );
 215 }
 216
 217
 218 /***********************************************************************
 219  *           GetDCState    (GDI.179)
 220  */
 221 HDC16 WINAPI GetDCState16( HDC16 hdc )
 222 {
 223     DC * newdc, * dc;
 224     HGDIOBJ16 handle;
 225
 226     if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return 0;
 227     if (!(handle = GDI_AllocObject( sizeof(DC), DC_MAGIC )))
 228     {
 229       GDI_HEAP_UNLOCK( hdc );
 230       return 0;
 231     }
 232     newdc = (DC *) GDI_HEAP_LOCK( handle );
 233
 234     TRACE("(%04x): returning %04x\n", hdc, handle );
 235
 236     newdc->w.flags            = dc->w.flags | DC_SAVED;
 237     newdc->w.devCaps          = dc->w.devCaps;
 238     newdc->w.hPen             = dc->w.hPen;
 239     newdc->w.hBrush           = dc->w.hBrush;
 240     newdc->w.hFont            = dc->w.hFont;
 241     newdc->w.hBitmap          = dc->w.hBitmap;
 242     newdc->w.hDevice          = dc->w.hDevice;
 243     newdc->w.hPalette         = dc->w.hPalette;
 244     newdc->w.totalExtent      = dc->w.totalExtent;
 245     newdc->w.bitsPerPixel     = dc->w.bitsPerPixel;
 246     newdc->w.ROPmode          = dc->w.ROPmode;
 247     newdc->w.polyFillMode     = dc->w.polyFillMode;
 248     newdc->w.stretchBltMode   = dc->w.stretchBltMode;
 249     newdc->w.relAbsMode       = dc->w.relAbsMode;
 250     newdc->w.backgroundMode   = dc->w.backgroundMode;
 251     newdc->w.backgroundColor  = dc->w.backgroundColor;
 252     newdc->w.textColor        = dc->w.textColor;
 253     newdc->w.brushOrgX        = dc->w.brushOrgX;
 254     newdc->w.brushOrgY        = dc->w.brushOrgY;
 255     newdc->w.textAlign        = dc->w.textAlign;
 256     newdc->w.charExtra        = dc->w.charExtra;
 257     newdc->w.breakTotalExtra  = dc->w.breakTotalExtra;
 258     newdc->w.breakCount       = dc->w.breakCount;
 259     newdc->w.breakExtra       = dc->w.breakExtra;
 260     newdc->w.breakRem         = dc->w.breakRem;
 261     newdc->w.MapMode          = dc->w.MapMode;
 262     newdc->w.GraphicsMode     = dc->w.GraphicsMode;
 263 #if 0
 264     /* Apparently, the DC origin is not changed by [GS]etDCState */
 265     newdc->w.DCOrgX           = dc->w.DCOrgX;
 266     newdc->w.DCOrgY           = dc->w.DCOrgY;
 267 #endif
 268     newdc->w.CursPosX         = dc->w.CursPosX;
 269     newdc->w.CursPosY         = dc->w.CursPosY;
 270     newdc->w.ArcDirection     = dc->w.ArcDirection;
 271     newdc->w.xformWorld2Wnd   = dc->w.xformWorld2Wnd;
 272     newdc->w.xformWorld2Vport = dc->w.xformWorld2Vport;
 273     newdc->w.xformVport2World = dc->w.xformVport2World;
 274     newdc->w.vport2WorldValid = dc->w.vport2WorldValid;
 275     newdc->wndOrgX            = dc->wndOrgX;
 276     newdc->wndOrgY            = dc->wndOrgY;
 277     newdc->wndExtX            = dc->wndExtX;
 278     newdc->wndExtY            = dc->wndExtY;
 279     newdc->vportOrgX          = dc->vportOrgX;
 280     newdc->vportOrgY          = dc->vportOrgY;
 281     newdc->vportExtX          = dc->vportExtX;
 282     newdc->vportExtY          = dc->vportExtY;
 283
 284     newdc->hSelf = (HDC)handle;
 285     newdc->saveLevel = 0;
 286
 287     PATH_InitGdiPath( &newdc->w.path );
 288
 289     newdc->w.pAbortProc = NULL;
 290
 291     /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
 292
 293     newdc->w.hGCClipRgn = newdc->w.hVisRgn = 0;
 294     if (dc->w.hClipRgn)
 295     {
 296         newdc->w.hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 297         CombineRgn( newdc->w.hClipRgn, dc->w.hClipRgn, 0, RGN_COPY );
 298     }
 299     else
 300         newdc->w.hClipRgn = 0;
 301     GDI_HEAP_UNLOCK( handle );
 302     GDI_HEAP_UNLOCK( hdc );
 303     return handle;
 304 }
 305
 306
 307 /***********************************************************************
 308  *           SetDCState    (GDI.180)
 309  */
 310 void WINAPI SetDCState16( HDC16 hdc, HDC16 hdcs )
 311 {
 312     DC *dc, *dcs;
 313
 314     if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return;
 315     if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC )))
 316     {
 317       GDI_HEAP_UNLOCK( hdc );
 318       return;
 319     }
 320     if (!dcs->w.flags & DC_SAVED)
 321     {
 322       GDI_HEAP_UNLOCK( hdc );
 323       GDI_HEAP_UNLOCK( hdcs );
 324       return;
 325     }
 326     TRACE("%04x %04x\n", hdc, hdcs );
 327
 328     dc->w.flags            = dcs->w.flags & ~DC_SAVED;
 329     dc->w.devCaps          = dcs->w.devCaps;
 330     dc->w.hDevice          = dcs->w.hDevice;
 331     dc->w.totalExtent      = dcs->w.totalExtent;
 332     dc->w.ROPmode          = dcs->w.ROPmode;
 333     dc->w.polyFillMode     = dcs->w.polyFillMode;
 334     dc->w.stretchBltMode   = dcs->w.stretchBltMode;
 335     dc->w.relAbsMode       = dcs->w.relAbsMode;
 336     dc->w.backgroundMode   = dcs->w.backgroundMode;
 337     dc->w.backgroundColor  = dcs->w.backgroundColor;
 338     dc->w.textColor        = dcs->w.textColor;
 339     dc->w.brushOrgX        = dcs->w.brushOrgX;
 340     dc->w.brushOrgY        = dcs->w.brushOrgY;
 341     dc->w.textAlign        = dcs->w.textAlign;
 342     dc->w.charExtra        = dcs->w.charExtra;
 343     dc->w.breakTotalExtra  = dcs->w.breakTotalExtra;
 344     dc->w.breakCount       = dcs->w.breakCount;
 345     dc->w.breakExtra       = dcs->w.breakExtra;
 346     dc->w.breakRem         = dcs->w.breakRem;
 347     dc->w.MapMode          = dcs->w.MapMode;
 348     dc->w.GraphicsMode     = dcs->w.GraphicsMode;
 349 #if 0
 350     /* Apparently, the DC origin is not changed by [GS]etDCState */
 351     dc->w.DCOrgX           = dcs->w.DCOrgX;
 352     dc->w.DCOrgY           = dcs->w.DCOrgY;
 353 #endif
 354     dc->w.CursPosX         = dcs->w.CursPosX;
 355     dc->w.CursPosY         = dcs->w.CursPosY;
 356     dc->w.ArcDirection     = dcs->w.ArcDirection;
 357     dc->w.xformWorld2Wnd   = dcs->w.xformWorld2Wnd;
 358     dc->w.xformWorld2Vport = dcs->w.xformWorld2Vport;
 359     dc->w.xformVport2World = dcs->w.xformVport2World;
 360     dc->w.vport2WorldValid = dcs->w.vport2WorldValid;
 361
 362     dc->wndOrgX            = dcs->wndOrgX;
 363     dc->wndOrgY            = dcs->wndOrgY;
 364     dc->wndExtX            = dcs->wndExtX;
 365     dc->wndExtY            = dcs->wndExtY;
 366     dc->vportOrgX          = dcs->vportOrgX;
 367     dc->vportOrgY          = dcs->vportOrgY;
 368     dc->vportExtX          = dcs->vportExtX;
 369     dc->vportExtY          = dcs->vportExtY;
 370
 371     if (!(dc->w.flags & DC_MEMORY)) dc->w.bitsPerPixel = dcs->w.bitsPerPixel;
 372
 373     if (dcs->w.hClipRgn)
 374     {
 375         if (!dc->w.hClipRgn) dc->w.hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 376         CombineRgn( dc->w.hClipRgn, dcs->w.hClipRgn, 0, RGN_COPY );
 377     }
 378     else
 379     {
 380         if (dc->w.hClipRgn) DeleteObject16( dc->w.hClipRgn );
 381         dc->w.hClipRgn = 0;
 382     }
 383     CLIPPING_UpdateGCRegion( dc );
 384
 385     SelectObject( hdc, dcs->w.hBitmap );
 386     SelectObject( hdc, dcs->w.hBrush );
 387     SelectObject( hdc, dcs->w.hFont );
 388     SelectObject( hdc, dcs->w.hPen );
 389     SetBkColor( hdc, dcs->w.backgroundColor);
 390     SetTextColor( hdc, dcs->w.textColor);
 391     GDISelectPalette16( hdc, dcs->w.hPalette, FALSE );
 392     GDI_HEAP_UNLOCK( hdc );
 393     GDI_HEAP_UNLOCK( hdcs );
 394 }
 395
 396
 397 /***********************************************************************
 398  *           SaveDC16    (GDI.30)
 399  */
 400 INT16 WINAPI SaveDC16( HDC16 hdc )
 401 {
 402     return (INT16)SaveDC( hdc );
 403 }
 404
 405
 406 /***********************************************************************
 407  *           SaveDC32    (GDI32.292)
 408  */
 409 INT WINAPI SaveDC( HDC hdc )
 410 {
 411     HDC hdcs;
 412     DC * dc, * dcs;
 413     INT ret;
 414
 415     dc = DC_GetDCPtr( hdc );
 416     if (!dc) return 0;
 417
 418     if(dc->funcs->pSaveDC)
 419         return dc->funcs->pSaveDC( dc );
 420
 421     if (!(hdcs = GetDCState16( hdc )))
 422     {
 423       GDI_HEAP_UNLOCK( hdc );
 424       return 0;
 425     }
 426     dcs = (DC *) GDI_HEAP_LOCK( hdcs );
 427
 428     /* Copy path. The reason why path saving / restoring is in SaveDC/
 429      * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
 430      * functions are only in Win16 (which doesn't have paths) and that
 431      * SetDCState doesn't allow us to signal an error (which can happen
 432      * when copying paths).
 433      */
 434     if (!PATH_AssignGdiPath( &dcs->w.path, &dc->w.path ))
 435     {
 436         GDI_HEAP_UNLOCK( hdc );
 437         GDI_HEAP_UNLOCK( hdcs );
 438         DeleteDC( hdcs );
 439         return 0;
 440     }
 441
 442     dcs->header.hNext = dc->header.hNext;
 443     dc->header.hNext = hdcs;
 444     TRACE("(%04x): returning %d\n", hdc, dc->saveLevel+1 );
 445     ret = ++dc->saveLevel;
 446     GDI_HEAP_UNLOCK( hdcs );
 447     GDI_HEAP_UNLOCK( hdc );
 448     return ret;
 449 }
 450
 451
 452 /***********************************************************************
 453  *           RestoreDC16    (GDI.39)
 454  */
 455 BOOL16 WINAPI RestoreDC16( HDC16 hdc, INT16 level )
 456 {
 457     return RestoreDC( hdc, level );
 458 }
 459
 460
 461 /***********************************************************************
 462  *           RestoreDC32    (GDI32.290)
 463  */
 464 BOOL WINAPI RestoreDC( HDC hdc, INT level )
 465 {
 466     DC * dc, * dcs;
 467     BOOL success;
 468
 469     TRACE("%04x %d\n", hdc, level );
 470     dc = DC_GetDCPtr( hdc );
 471     if(!dc) return FALSE;
 472     if(dc->funcs->pRestoreDC)
 473         return dc->funcs->pRestoreDC( dc, level );
 474
 475     if (level == -1) level = dc->saveLevel;
 476     if ((level < 1) || (level > dc->saveLevel))
 477     {
 478       GDI_HEAP_UNLOCK( hdc );
 479       return FALSE;
 480     }
 481
 482     success=TRUE;
 483     while (dc->saveLevel >= level)
 484     {
 485         HDC16 hdcs = dc->header.hNext;
 486         if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC )))
 487         {
 488           GDI_HEAP_UNLOCK( hdc );
 489           return FALSE;
 490         }
 491         dc->header.hNext = dcs->header.hNext;
 492         if (--dc->saveLevel < level)
 493         {
 494             SetDCState16( hdc, hdcs );
 495             if (!PATH_AssignGdiPath( &dc->w.path, &dcs->w.path ))
 496                 /* FIXME: This might not be quite right, since we're
 497                  * returning FALSE but still destroying the saved DC state */
 498                 success=FALSE;
 499         }
 500         DeleteDC( hdcs );
 501     }
 502     GDI_HEAP_UNLOCK( hdc );
 503     return success;
 504 }
 505
 506
 507 /***********************************************************************
 508  *           CreateDC16    (GDI.53)
 509  */
 510 HDC16 WINAPI CreateDC16( LPCSTR driver, LPCSTR device, LPCSTR output,
 511                          const DEVMODEA *initData )
 512 {
 513     DC * dc;
 514     const DC_FUNCTIONS *funcs;
 515     char buf[300];
 516
 517     if (device) {
 518         if(!DRIVER_GetDriverName( device, buf, sizeof(buf) )) return 0;
 519     } else
 520         strcpy(buf, driver);
 521
 522     if (!(funcs = DRIVER_FindDriver( buf ))) return 0;
 523     if (!(dc = DC_AllocDC( funcs ))) return 0;
 524     dc->w.flags = 0;
 525
 526     TRACE("(driver=%s, device=%s, output=%s): returning %04x\n",
 527                debugstr_a(driver), debugstr_a(device), debugstr_a(output), dc->hSelf );
 528
 529     if (dc->funcs->pCreateDC &&
 530         !dc->funcs->pCreateDC( dc, buf, device, output, initData ))
 531     {
 532         WARN("creation aborted by device\n" );
 533         GDI_HEAP_FREE( dc->hSelf );
 534         return 0;
 535     }
 536
 537     DC_InitDC( dc );
 538     GDI_HEAP_UNLOCK( dc->hSelf );
 539     return dc->hSelf;
 540 }
 541
 542
 543 /***********************************************************************
 544  *           CreateDC32A    (GDI32.)
 545  */
 546 HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
 547                           const DEVMODEA *initData )
 548 {
 549     return CreateDC16( driver, device, output, (const DEVMODEA *)initData );
 550 }
 551
 552
 553 /***********************************************************************
 554  *           CreateDC32W    (GDI32.)
 555  */
 556 HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 557                           const DEVMODEW *initData )
 558 {
 559     LPSTR driverA = HEAP_strdupWtoA( GetProcessHeap(), 0, driver );
 560     LPSTR deviceA = HEAP_strdupWtoA( GetProcessHeap(), 0, device );
 561     LPSTR outputA = HEAP_strdupWtoA( GetProcessHeap(), 0, output );
 562     HDC res = CreateDC16( driverA, deviceA, outputA,
 563                             (const DEVMODEA *)initData /*FIXME*/ );
 564     HeapFree( GetProcessHeap(), 0, driverA );
 565     HeapFree( GetProcessHeap(), 0, deviceA );
 566     HeapFree( GetProcessHeap(), 0, outputA );
 567     return res;
 568 }
 569
 570
 571 /***********************************************************************
 572  *           CreateIC16    (GDI.153)
 573  */
 574 HDC16 WINAPI CreateIC16( LPCSTR driver, LPCSTR device, LPCSTR output,
 575                          const DEVMODEA* initData )
 576 {
 577       /* Nothing special yet for ICs */
 578     return CreateDC16( driver, device, output, initData );
 579 }
 580
 581
 582 /***********************************************************************
 583  *           CreateIC32A    (GDI32.49)
 584  */
 585 HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
 586                           const DEVMODEA* initData )
 587 {
 588       /* Nothing special yet for ICs */
 589     return CreateDCA( driver, device, output, initData );
 590 }
 591
 592
 593 /***********************************************************************
 594  *           CreateIC32W    (GDI32.50)
 595  */
 596 HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 597                           const DEVMODEW* initData )
 598 {
 599       /* Nothing special yet for ICs */
 600     return CreateDCW( driver, device, output, initData );
 601 }
 602
 603
 604 /***********************************************************************
 605  *           CreateCompatibleDC16    (GDI.52)
 606  */
 607 HDC16 WINAPI CreateCompatibleDC16( HDC16 hdc )
 608 {
 609     return (HDC16)CreateCompatibleDC( hdc );
 610 }
 611
 612
 613 /***********************************************************************
 614  *           CreateCompatibleDC32   (GDI32.31)
 615  */
 616 HDC WINAPI CreateCompatibleDC( HDC hdc )
 617 {
 618     DC *dc, *origDC;
 619     const DC_FUNCTIONS *funcs;
 620
 621     if ((origDC = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC ))) funcs = origDC->funcs;
 622     else funcs = DRIVER_FindDriver( "DISPLAY" );
 623     if (!funcs) return 0;
 624
 625     if (!(dc = DC_AllocDC( funcs ))) return 0;
 626
 627     TRACE("(%04x): returning %04x\n",
 628                hdc, dc->hSelf );
 629
 630     dc->w.flags        = DC_MEMORY;
 631     dc->w.bitsPerPixel = 1;
 632     dc->w.hBitmap      = hPseudoStockBitmap;
 633
 634     /* Copy the driver-specific physical device info into
 635      * the new DC. The driver may use this read-only info
 636      * while creating the compatible DC below. */
 637     if (origDC)
 638         dc->physDev = origDC->physDev;
 639
 640     if (dc->funcs->pCreateDC &&
 641         !dc->funcs->pCreateDC( dc, NULL, NULL, NULL, NULL ))
 642     {
 643         WARN("creation aborted by device\n");
 644         GDI_HEAP_FREE( dc->hSelf );
 645         return 0;
 646     }
 647
 648     DC_InitDC( dc );
 649     GDI_HEAP_UNLOCK( dc->hSelf );
 650     return dc->hSelf;
 651 }
 652
 653
 654 /***********************************************************************
 655  *           DeleteDC16    (GDI.68)
 656  */
 657 BOOL16 WINAPI DeleteDC16( HDC16 hdc )
 658 {
 659     return DeleteDC( hdc );
 660 }
 661
 662
 663 /***********************************************************************
 664  *           DeleteDC32    (GDI32.67)
 665  */
 666 BOOL WINAPI DeleteDC( HDC hdc )
 667 {
 668     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 669     if (!dc) return FALSE;
 670
 671     TRACE("%04x\n", hdc );
 672
 673     /* Call hook procedure to check whether is it OK to delete this DC */
 674     if (    dc->hookThunk && !(dc->w.flags & (DC_SAVED | DC_MEMORY))
 675          && dc->hookThunk( hdc, DCHC_DELETEDC, dc->dwHookData, 0 ) == FALSE )
 676     {
 677         GDI_HEAP_UNLOCK( hdc );
 678         return FALSE;
 679     }
 680
 681     while (dc->saveLevel)
 682     {
 683         DC * dcs;
 684         HDC16 hdcs = dc->header.hNext;
 685         if (!(dcs = (DC *) GDI_GetObjPtr( hdcs, DC_MAGIC ))) break;
 686         dc->header.hNext = dcs->header.hNext;
 687         dc->saveLevel--;
 688         DeleteDC( hdcs );
 689     }
 690
 691     if (!(dc->w.flags & DC_SAVED))
 692     {
 693         SelectObject( hdc, STOCK_BLACK_PEN );
 694         SelectObject( hdc, STOCK_WHITE_BRUSH );
 695         SelectObject( hdc, STOCK_SYSTEM_FONT );
 696         if (dc->funcs->pDeleteDC) dc->funcs->pDeleteDC(dc);
 697     }
 698
 699     if (dc->w.hClipRgn) DeleteObject( dc->w.hClipRgn );
 700     if (dc->w.hVisRgn) DeleteObject( dc->w.hVisRgn );
 701     if (dc->w.hGCClipRgn) DeleteObject( dc->w.hGCClipRgn );
 702     if (dc->w.pAbortProc) THUNK_Free( (FARPROC)dc->w.pAbortProc );
 703     if (dc->hookThunk) THUNK_Free( (FARPROC)dc->hookThunk );
 704     PATH_DestroyGdiPath(&dc->w.path);
 705
 706     return GDI_FreeObject( hdc );
 707 }
 708
 709
 710 /***********************************************************************
 711  *           ResetDC16    (GDI.376)
 712  */
 713 HDC16 WINAPI ResetDC16( HDC16 hdc, const DEVMODEA *devmode )
 714 {
 715     FIXME("stub\n" );
 716     return hdc;
 717 }
 718
 719
 720 /***********************************************************************
 721  *           ResetDC32A    (GDI32.287)
 722  */
 723 HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
 724 {
 725     FIXME("stub\n" );
 726     return hdc;
 727 }
 728
 729
 730 /***********************************************************************
 731  *           ResetDC32W    (GDI32.288)
 732  */
 733 HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
 734 {
 735     FIXME("stub\n" );
 736     return hdc;
 737 }
 738
 739
 740 /***********************************************************************
 741  *           GetDeviceCaps16    (GDI.80)
 742  */
 743 INT16 WINAPI GetDeviceCaps16( HDC16 hdc, INT16 cap )
 744 {
 745     return GetDeviceCaps( hdc, cap );
 746 }
 747
 748
 749 /***********************************************************************
 750  *           GetDeviceCaps32    (GDI32.171)
 751  */
 752 INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
 753 {
 754     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 755     INT ret;
 756     POINT pt;
 757
 758     if (!dc) return 0;
 759
 760     /* Device capabilities for the printer */
 761     switch (cap)
 762     {
 763     case PHYSICALWIDTH:
 764         if(Escape(hdc, GETPHYSPAGESIZE, 0, NULL, (LPVOID)&pt) > 0)
 765             return pt.x;
 766     case PHYSICALHEIGHT:
 767         if(Escape(hdc, GETPHYSPAGESIZE, 0, NULL, (LPVOID)&pt) > 0)
 768             return pt.y;
 769     case PHYSICALOFFSETX:
 770         if(Escape(hdc, GETPRINTINGOFFSET, 0, NULL, (LPVOID)&pt) > 0)
 771             return pt.x;
 772     case PHYSICALOFFSETY:
 773         if(Escape(hdc, GETPRINTINGOFFSET, 0, NULL, (LPVOID)&pt) > 0)
 774             return pt.y;
 775     case SCALINGFACTORX:
 776         if(Escape(hdc, GETSCALINGFACTOR, 0, NULL, (LPVOID)&pt) > 0)
 777             return pt.x;
 778     case SCALINGFACTORY:
 779         if(Escape(hdc, GETSCALINGFACTOR, 0, NULL, (LPVOID)&pt) > 0)
 780             return pt.y;
 781     }
 782
 783     if ((cap < 0) || (cap > sizeof(DeviceCaps)-sizeof(WORD)))
 784     {
 785       GDI_HEAP_UNLOCK( hdc );
 786       return 0;
 787     }
 788
 789     if (((cap>=46) && (cap<88)) || ((cap>=92) && (cap<104)))
 790         FIXME("(%04x,%d): unsupported DeviceCaps capability, will yield 0!\n",
 791                 hdc,cap
 792         );
 793     TRACE("(%04x,%d): returning %d\n",
 794             hdc, cap, *(WORD *)(((char *)dc->w.devCaps) + cap) );
 795     ret = *(WORD *)(((char *)dc->w.devCaps) + cap);
 796     GDI_HEAP_UNLOCK( hdc );
 797     return ret;
 798 }
 799
 800
 801 /***********************************************************************
 802  *           SetBkColor16    (GDI.1)
 803  */
 804 COLORREF WINAPI SetBkColor16( HDC16 hdc, COLORREF color )
 805 {
 806     return SetBkColor( hdc, color );
 807 }
 808
 809
 810 /***********************************************************************
 811  *           SetBkColor32    (GDI32.305)
 812  */
 813 COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
 814 {
 815     COLORREF oldColor;
 816     DC * dc = DC_GetDCPtr( hdc );
 817
 818     if (!dc) return 0x80000000;
 819     if (dc->funcs->pSetBkColor)
 820         oldColor = dc->funcs->pSetBkColor(dc, color);
 821     else {
 822         oldColor = dc->w.backgroundColor;
 823         dc->w.backgroundColor = color;
 824     }
 825     GDI_HEAP_UNLOCK( hdc );
 826     return oldColor;
 827 }
 828
 829
 830 /***********************************************************************
 831  *           SetTextColor16    (GDI.9)
 832  */
 833 COLORREF WINAPI SetTextColor16( HDC16 hdc, COLORREF color )
 834 {
 835     return SetTextColor( hdc, color );
 836 }
 837
 838
 839 /***********************************************************************
 840  *           SetTextColor32    (GDI32.338)
 841  */
 842 COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
 843 {
 844     COLORREF oldColor;
 845     DC * dc = DC_GetDCPtr( hdc );
 846
 847     if (!dc) return 0x80000000;
 848     if (dc->funcs->pSetTextColor)
 849         oldColor = dc->funcs->pSetTextColor(dc, color);
 850     else {
 851         oldColor = dc->w.textColor;
 852         dc->w.textColor = color;
 853     }
 854     GDI_HEAP_UNLOCK( hdc );
 855     return oldColor;
 856 }
 857
 858 /***********************************************************************
 859  *           SetTextAlign16    (GDI.346)
 860  */
 861 UINT16 WINAPI SetTextAlign16( HDC16 hdc, UINT16 align )
 862 {
 863     return SetTextAlign( hdc, align );
 864 }
 865
 866
 867 /***********************************************************************
 868  *           SetTextAlign    (GDI32.336)
 869  */
 870 UINT WINAPI SetTextAlign( HDC hdc, UINT align )
 871 {
 872     UINT prevAlign;
 873     DC *dc = DC_GetDCPtr( hdc );
 874     if (!dc) return 0x0;
 875     if (dc->funcs->pSetTextAlign)
 876         prevAlign = dc->funcs->pSetTextAlign(dc, align);
 877     else {
 878         prevAlign = dc->w.textAlign;
 879         dc->w.textAlign = align;
 880     }
 881     GDI_HEAP_UNLOCK( hdc );
 882     return prevAlign;
 883 }
 884
 885 /***********************************************************************
 886  *           GetDCOrgEx  (GDI32.168)
 887  */
 888 BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
 889 {
 890     DC * dc;
 891
 892     if (!lpp) return FALSE;
 893     if (!(dc = (DC *) GDI_GetObjPtr( hDC, DC_MAGIC ))) return FALSE;
 894
 895 #ifndef X_DISPLAY_MISSING
 896     if (!(dc->w.flags & DC_MEMORY))
 897     {
 898        X11DRV_PDEVICE *physDev;
 899        Window root;
 900        int w, h, border, depth;
 901
 902        physDev = (X11DRV_PDEVICE *) dc->physDev;
 903
 904        /* FIXME: this is not correct for managed windows */
 905        TSXGetGeometry( display, physDev->drawable, &root,
 906                     (int*)&lpp->x, (int*)&lpp->y, &w, &h, &border, &depth );
 907     }
 908     else
 909 #endif  /* !defined(X_DISPLAY_MISSING) */
 910       lpp->x = lpp->y = 0;
 911
 912     lpp->x += dc->w.DCOrgX; lpp->y += dc->w.DCOrgY;
 913     GDI_HEAP_UNLOCK( hDC );
 914     return TRUE;
 915 }
 916
 917
 918 /***********************************************************************
 919  *           GetDCOrg    (GDI.79)
 920  */
 921 DWORD WINAPI GetDCOrg16( HDC16 hdc )
 922 {
 923     POINT       pt;
 924     if( GetDCOrgEx( hdc, &pt) )
 925         return MAKELONG( (WORD)pt.x, (WORD)pt.y );
 926     return 0;
 927 }
 928
 929
 930 /***********************************************************************
 931  *           SetDCOrg    (GDI.117)
 932  */
 933 DWORD WINAPI SetDCOrg16( HDC16 hdc, INT16 x, INT16 y )
 934 {
 935     DWORD prevOrg;
 936     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 937     if (!dc) return 0;
 938     prevOrg = dc->w.DCOrgX | (dc->w.DCOrgY << 16);
 939     dc->w.DCOrgX = x;
 940     dc->w.DCOrgY = y;
 941     GDI_HEAP_UNLOCK( hdc );
 942     return prevOrg;
 943 }
 944
 945
 946 /***********************************************************************
 947  *           GetGraphicsMode    (GDI32.188)
 948  */
 949 INT WINAPI GetGraphicsMode( HDC hdc )
 950 {
 951     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 952     if (!dc) return 0;
 953     return dc->w.GraphicsMode;
 954 }
 955
 956
 957 /***********************************************************************
 958  *           SetGraphicsMode    (GDI32.317)
 959  */
 960 INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
 961 {
 962     INT ret;
 963     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 964
 965     /* One would think that setting the graphics mode to GM_COMPATIBLE
 966      * would also reset the world transformation matrix to the unity
 967      * matrix. However, in Windows, this is not the case. This doesn't
 968      * make a lot of sense to me, but that's the way it is.
 969      */
 970
 971     if (!dc) return 0;
 972     if ((mode <= 0) || (mode > GM_LAST)) return 0;
 973     ret = dc->w.GraphicsMode;
 974     dc->w.GraphicsMode = mode;
 975     return ret;
 976 }
 977
 978
 979 /***********************************************************************
 980  *           GetArcDirection16    (GDI.524)
 981  */
 982 INT16 WINAPI GetArcDirection16( HDC16 hdc )
 983 {
 984     return GetArcDirection( (HDC)hdc );
 985 }
 986
 987
 988 /***********************************************************************
 989  *           GetArcDirection32    (GDI32.141)
 990  */
 991 INT WINAPI GetArcDirection( HDC hdc )
 992 {
 993     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 994
 995     if (!dc)
 996         return 0;
 997
 998     return dc->w.ArcDirection;
 999 }
1000
1001
1002 /***********************************************************************
1003  *           SetArcDirection16    (GDI.525)
1004  */
1005 INT16 WINAPI SetArcDirection16( HDC16 hdc, INT16 nDirection )
1006 {
1007     return SetArcDirection( (HDC)hdc, (INT)nDirection );
1008 }
1009
1010
1011 /***********************************************************************
1012  *           SetArcDirection32    (GDI32.302)
1013  */
1014 INT WINAPI SetArcDirection( HDC hdc, INT nDirection )
1015 {
1016     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1017     INT nOldDirection;
1018
1019     if (!dc)
1020         return 0;
1021
1022     if (nDirection!=AD_COUNTERCLOCKWISE && nDirection!=AD_CLOCKWISE)
1023     {
1024         SetLastError(ERROR_INVALID_PARAMETER);
1025         return 0;
1026     }
1027
1028     nOldDirection = dc->w.ArcDirection;
1029     dc->w.ArcDirection = nDirection;
1030
1031     return nOldDirection;
1032 }
1033
1034
1035 /***********************************************************************
1036  *           GetWorldTransform    (GDI32.244)
1037  */
1038 BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
1039 {
1040     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1041
1042     if (!dc)
1043         return FALSE;
1044     if (!xform)
1045         return FALSE;
1046
1047     *xform = dc->w.xformWorld2Wnd;
1048
1049     return TRUE;
1050 }
1051
1052
1053 /***********************************************************************
1054  *           SetWorldTransform    (GDI32.346)
1055  */
1056 BOOL WINAPI SetWorldTransform( HDC hdc, const XFORM *xform )
1057 {
1058     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1059
1060     if (!dc)
1061     {
1062         SetLastError( ERROR_INVALID_HANDLE );
1063         return FALSE;
1064     }
1065
1066     if (!xform)
1067         return FALSE;
1068
1069     /* Check that graphics mode is GM_ADVANCED */
1070     if (dc->w.GraphicsMode!=GM_ADVANCED)
1071        return FALSE;
1072
1073     dc->w.xformWorld2Wnd = *xform;
1074
1075     DC_UpdateXforms( dc );
1076
1077     return TRUE;
1078 }
1079
1080
1081 /****************************************************************************
1082  * ModifyWorldTransform [GDI32.253]
1083  * Modifies the world transformation for a device context.
1084  *
1085  * PARAMS
1086  *    hdc   [I] Handle to device context
1087  *    xform [I] XFORM structure that will be used to modify the world
1088  *              transformation
1089  *    iMode [I] Specifies in what way to modify the world transformation
1090  *              Possible values:
1091  *              MWT_IDENTITY
1092  *                 Resets the world transformation to the identity matrix.
1093  *                 The parameter xform is ignored.
1094  *              MWT_LEFTMULTIPLY
1095  *                 Multiplies xform into the world transformation matrix from
1096  *                 the left.
1097  *              MWT_RIGHTMULTIPLY
1098  *                 Multiplies xform into the world transformation matrix from
1099  *                 the right.
1100  *
1101  * RETURNS STD
1102  */
1103 BOOL WINAPI ModifyWorldTransform( HDC hdc, const XFORM *xform,
1104     DWORD iMode )
1105 {
1106     DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
1107
1108     /* Check for illegal parameters */
1109     if (!dc)
1110     {
1111         SetLastError( ERROR_INVALID_HANDLE );
1112         return FALSE;
1113     }
1114     if (!xform)
1115         return FALSE;
1116
1117     /* Check that graphics mode is GM_ADVANCED */
1118     if (dc->w.GraphicsMode!=GM_ADVANCED)
1119        return FALSE;
1120
1121     switch (iMode)
1122     {
1123         case MWT_IDENTITY:
1124             dc->w.xformWorld2Wnd.eM11 = 1.0f;
1125             dc->w.xformWorld2Wnd.eM12 = 0.0f;
1126             dc->w.xformWorld2Wnd.eM21 = 0.0f;
1127             dc->w.xformWorld2Wnd.eM22 = 1.0f;
1128             dc->w.xformWorld2Wnd.eDx  = 0.0f;
1129             dc->w.xformWorld2Wnd.eDy  = 0.0f;
1130             break;
1131         case MWT_LEFTMULTIPLY:
1132             CombineTransform( &dc->w.xformWorld2Wnd, xform,
1133                 &dc->w.xformWorld2Wnd );
1134             break;
1135         case MWT_RIGHTMULTIPLY:
1136             CombineTransform( &dc->w.xformWorld2Wnd, &dc->w.xformWorld2Wnd,
1137                 xform );
1138             break;
1139         default:
1140             return FALSE;
1141     }
1142
1143     DC_UpdateXforms( dc );
1144
1145     return TRUE;
1146 }
1147
1148
1149 /****************************************************************************
1150  * CombineTransform [GDI32.20]
1151  * Combines two transformation matrices.
1152  *
1153  * PARAMS
1154  *    xformResult [O] Stores the result of combining the two matrices
1155  *    xform1      [I] Specifies the first matrix to apply
1156  *    xform2      [I] Specifies the second matrix to apply
1157  *
1158  * REMARKS
1159  *    The same matrix can be passed in for more than one of the parameters.
1160  *
1161  * RETURNS STD
1162  */
1163 BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1164     const XFORM *xform2 )
1165 {
1166     XFORM xformTemp;
1167
1168     /* Check for illegal parameters */
1169     if (!xformResult || !xform1 || !xform2)
1170         return FALSE;
1171
1172     /* Create the result in a temporary XFORM, since xformResult may be
1173      * equal to xform1 or xform2 */
1174     xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1175                      xform1->eM12 * xform2->eM21;
1176     xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1177                      xform1->eM12 * xform2->eM22;
1178     xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1179                      xform1->eM22 * xform2->eM21;
1180     xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1181                      xform1->eM22 * xform2->eM22;
1182     xformTemp.eDx  = xform1->eDx  * xform2->eM11 +
1183                      xform1->eDy  * xform2->eM21 +
1184                      xform2->eDx;
1185     xformTemp.eDy  = xform1->eDx  * xform2->eM12 +
1186                      xform1->eDy  * xform2->eM22 +
1187                      xform2->eDy;
1188
1189     /* Copy the result to xformResult */
1190     *xformResult = xformTemp;
1191
1192     return TRUE;
1193 }
1194
1195
1196 /***********************************************************************
1197  *           SetDCHook   (GDI.190)
1198  */
1199 /* ### start build ### */
1200 extern WORD CALLBACK GDI_CallTo16_word_wwll(FARPROC16,WORD,WORD,LONG,LONG);
1201 /* ### stop build ### */
1202 BOOL16 WINAPI SetDCHook( HDC16 hdc, FARPROC16 hookProc, DWORD dwHookData )
1203 {
1204     DC *dc = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC );
1205     if (!dc) return FALSE;
1206
1207     /*
1208      * Note: We store the original SEGPTR 'hookProc' as we need to be
1209      *       able to return it verbatim in GetDCHook,
1210      *
1211      *       On the other hand, we still call THUNK_Alloc and store the
1212      *       32-bit thunk into another DC member, because THUNK_Alloc
1213      *       recognizes the (typical) case that the 'hookProc' is indeed
1214      *       the 16-bit API entry point of a built-in routine (e.g. DCHook16)
1215      *
1216      *       We could perform that test every time the hook is about to
1217      *       be called (or else we could live with the 32->16->32 detour),
1218      *       but this way is the most efficient ...
1219      */
1220
1221     dc->hookProc = hookProc;
1222     dc->dwHookData = dwHookData;
1223
1224     THUNK_Free( (FARPROC)dc->hookThunk );
1225     dc->hookThunk = (DCHOOKPROC)
1226                     THUNK_Alloc( hookProc, (RELAY)GDI_CallTo16_word_wwll );
1227
1228     GDI_HEAP_UNLOCK( hdc );
1229     return TRUE;
1230 }
1231
1232
1233 /***********************************************************************
1234  *           GetDCHook   (GDI.191)
1235  */
1236 DWORD WINAPI GetDCHook( HDC16 hdc, FARPROC16 *phookProc )
1237 {
1238     DC *dc = (DC *)GDI_GetObjPtr( hdc, DC_MAGIC );
1239     if (!dc) return 0;
1240     *phookProc = dc->hookProc;
1241     GDI_HEAP_UNLOCK( hdc );
1242     return dc->dwHookData;
1243 }
1244
1245
1246 /***********************************************************************
1247  *           SetHookFlags       (GDI.192)
1248  */
1249 WORD WINAPI SetHookFlags16(HDC16 hDC, WORD flags)
1250 {
1251     DC* dc = (DC*)GDI_GetObjPtr( hDC, DC_MAGIC );
1252
1253     if( dc )
1254     {
1255         WORD wRet = dc->w.flags & DC_DIRTY;
1256
1257         /* "Undocumented Windows" info is slightly confusing.
1258          */
1259
1260         TRACE("hDC %04x, flags %04x\n",hDC,flags);
1261
1262         if( flags & DCHF_INVALIDATEVISRGN )
1263             dc->w.flags |= DC_DIRTY;
1264         else if( flags & DCHF_VALIDATEVISRGN || !flags )
1265             dc->w.flags &= ~DC_DIRTY;
1266         GDI_HEAP_UNLOCK( hDC );
1267         return wRet;
1268     }
1269     return 0;
1270 }
1271
1272 /***********************************************************************
1273  *           SetICMMode    (GDI32.318)
1274  */
1275 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1276 {
1277 /*FIXME  Asuming that ICM is always off, and cannot be turned on */
1278     if (iEnableICM == ICM_OFF) return ICM_OFF;
1279     if (iEnableICM == ICM_ON) return 0;
1280     if (iEnableICM == ICM_QUERY) return ICM_OFF;
1281     return 0;
1282 }
1283
1284
1285 /***********************************************************************
1286  *           GetColorSpace    (GDI32.165)
1287  */
1288 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1289 {
1290 /*FIXME    Need to to whatever GetColorSpace actually does */
1291     return 0;
1292 }
1293
1294 /***********************************************************************
1295  *           CreateColorSpaceA    (GDI32.???)
1296  */
1297 HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
1298 {
1299   FIXME( "stub\n" );
1300   return 0;
1301 }
1302
1303 /***********************************************************************
1304  *           CreateColorSpaceW    (GDI32.???)
1305  */
1306 HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
1307 {
1308   FIXME( "stub\n" );
1309   return 0;
1310 }
1311
1312 /***********************************************************************
1313  *           DeleteColorSpace     (GDI32.???)
1314  */
1315 BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
1316 {
1317   FIXME( "stub\n" );
1318
1319   return True;
1320 }
1321
1322 /***********************************************************************
1323  *           SetColorSpace     (GDI32.???)
1324  */
1325 HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
1326 {
1327   FIXME( "stub\n" );
1328
1329   return hColorSpace;
1330 }
1331
1332 /***********************************************************************
1333  *           GetBoundsRect16    (GDI.194)
1334  */
1335 UINT16 WINAPI GetBoundsRect16(HDC16 hdc, LPRECT16 rect, UINT16 flags)
1336 {
1337     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1338 }
1339
1340 /***********************************************************************
1341  *           GetBoundsRect32    (GDI32.147)
1342  */
1343 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1344 {
1345     FIXME("(): stub\n");
1346     return DCB_RESET;   /* bounding rectangle always empty */
1347 }
1348
1349 /***********************************************************************
1350  *           SetBoundsRect16    (GDI.193)
1351  */
1352 UINT16 WINAPI SetBoundsRect16(HDC16 hdc, const RECT16* rect, UINT16 flags)
1353 {
1354     if ( (flags & DCB_ACCUMULATE) || (flags & DCB_ENABLE) )
1355         FIXME("(%04x, %p, %04x): stub\n", hdc, rect, flags );
1356
1357     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1358 }
1359
1360 /***********************************************************************
1361  *           SetBoundsRect32    (GDI32.307)
1362  */
1363 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1364 {
1365     FIXME("(): stub\n");
1366     return DCB_DISABLE;   /* bounding rectangle always empty */
1367 }
1368
1369 /***********************************************************************
1370  *           Death    (GDI.121)
1371  *
1372  * Disables GDI, switches back to text mode.
1373  * We don't have to do anything here,
1374  * just let console support handle everything
1375  */
1376 void WINAPI Death16(HDC16 hDC)
1377 {
1378     MESSAGE("Death(%04x) called. Application enters text mode...\n", hDC);
1379 }
1380
1381 /***********************************************************************
1382  *           Resurrection    (GDI.122)
1383  *
1384  * Restores GDI functionality
1385  */
1386 void WINAPI Resurrection16(HDC16 hDC,
1387                            WORD w1, WORD w2, WORD w3, WORD w4, WORD w5, WORD w6)
1388 {
1389     MESSAGE("Resurrection(%04x, %04x, %04x, %04x, %04x, %04x, %04x) called. Application left text mode.\n", hDC, w1, w2, w3, w4, w5, w6);
1390 }
1391
1392 /***********************************************************************
1393  *           GetLayout    (GDI32.321)
1394  *
1395  * Gets left->right or right->left text layout flags of a dc.
1396  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1397  *
1398  */
1399 DWORD WINAPI GetLayout(HDC hdc)
1400 {
1401     FIXME("(%08x): stub\n", hdc);
1402     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1403     return 0;
1404 }
1405
1406 /***********************************************************************
1407  *           SetLayout    (GDI32.450)
1408  *
1409  * Sets left->right or right->left text layout flags of a dc.
1410  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1411  *
1412  */
1413 DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
1414 {
1415     FIXME("(%08x,%08lx): stub\n", hdc, layout);
1416     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1417     return 0;
1418 }