objects/dc.c

   1 /*
   2  * GDI Device Context functions
   3  *
   4  * Copyright 1993 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include "gdi.h"
  26 #include "heap.h"
  27 #include "wine/debug.h"
  28 #include "font.h"
  29 #include "winerror.h"
  30 #include "windef.h"
  31 #include "wingdi.h"
  32 #include "wine/winuser16.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(dc);
  35
  36 /* ### start build ### */
  37 extern WORD CALLBACK GDI_CallTo16_word_wwll(FARPROC16,WORD,WORD,LONG,LONG);
  38 /* ### stop build ### */
  39
  40 static BOOL DC_DeleteObject( HGDIOBJ handle, void *obj );
  41
  42 static const struct gdi_obj_funcs dc_funcs =
  43 {
  44     NULL,             /* pSelectObject */
  45     NULL,             /* pGetObject16 */
  46     NULL,             /* pGetObjectA */
  47     NULL,             /* pGetObjectW */
  48     NULL,             /* pUnrealizeObject */
  49     DC_DeleteObject   /* pDeleteObject */
  50 };
  51
  52 /***********************************************************************
  53  *           DC_AllocDC
  54  */
  55 DC *DC_AllocDC( const DC_FUNCTIONS *funcs )
  56 {
  57     HDC hdc;
  58     DC *dc;
  59
  60     if (!(dc = GDI_AllocObject( sizeof(*dc), DC_MAGIC, &hdc, &dc_funcs ))) return NULL;
  61
  62     dc->hSelf               = hdc;
  63     dc->funcs               = funcs;
  64     dc->physDev             = NULL;
  65     dc->saveLevel           = 0;
  66     dc->dwHookData          = 0;
  67     dc->hookProc            = NULL;
  68     dc->hookThunk           = NULL;
  69     dc->wndOrgX             = 0;
  70     dc->wndOrgY             = 0;
  71     dc->wndExtX             = 1;
  72     dc->wndExtY             = 1;
  73     dc->vportOrgX           = 0;
  74     dc->vportOrgY           = 0;
  75     dc->vportExtX           = 1;
  76     dc->vportExtY           = 1;
  77     dc->flags               = 0;
  78     dc->hClipRgn            = 0;
  79     dc->hVisRgn             = 0;
  80     dc->hGCClipRgn          = 0;
  81     dc->hPen                = GetStockObject( BLACK_PEN );
  82     dc->hBrush              = GetStockObject( WHITE_BRUSH );
  83     dc->hFont               = GetStockObject( SYSTEM_FONT );
  84     dc->hBitmap             = 0;
  85     dc->hDevice             = 0;
  86     dc->hPalette            = GetStockObject( DEFAULT_PALETTE );
  87     dc->gdiFont             = 0;
  88     dc->ROPmode             = R2_COPYPEN;
  89     dc->polyFillMode        = ALTERNATE;
  90     dc->stretchBltMode      = BLACKONWHITE;
  91     dc->relAbsMode          = ABSOLUTE;
  92     dc->backgroundMode      = OPAQUE;
  93     dc->backgroundColor     = RGB( 255, 255, 255 );
  94     dc->textColor           = RGB( 0, 0, 0 );
  95     dc->brushOrgX           = 0;
  96     dc->brushOrgY           = 0;
  97     dc->textAlign           = TA_LEFT | TA_TOP | TA_NOUPDATECP;
  98     dc->charExtra           = 0;
  99     dc->breakTotalExtra     = 0;
 100     dc->breakCount          = 0;
 101     dc->breakExtra          = 0;
 102     dc->breakRem            = 0;
 103     dc->totalExtent.left    = 0;
 104     dc->totalExtent.top     = 0;
 105     dc->totalExtent.right   = 0;
 106     dc->totalExtent.bottom  = 0;
 107     dc->bitsPerPixel        = 1;
 108     dc->MapMode             = MM_TEXT;
 109     dc->GraphicsMode        = GM_COMPATIBLE;
 110     dc->pAbortProc          = NULL;
 111     dc->CursPosX            = 0;
 112     dc->CursPosY            = 0;
 113     dc->ArcDirection        = AD_COUNTERCLOCKWISE;
 114     dc->xformWorld2Wnd.eM11 = 1.0f;
 115     dc->xformWorld2Wnd.eM12 = 0.0f;
 116     dc->xformWorld2Wnd.eM21 = 0.0f;
 117     dc->xformWorld2Wnd.eM22 = 1.0f;
 118     dc->xformWorld2Wnd.eDx  = 0.0f;
 119     dc->xformWorld2Wnd.eDy  = 0.0f;
 120     dc->xformWorld2Vport    = dc->xformWorld2Wnd;
 121     dc->xformVport2World    = dc->xformWorld2Wnd;
 122     dc->vport2WorldValid    = TRUE;
 123     PATH_InitGdiPath(&dc->path);
 124     return dc;
 125 }
 126
 127
 128
 129 /***********************************************************************
 130  *           DC_GetDCPtr
 131  */
 132 DC *DC_GetDCPtr( HDC hdc )
 133 {
 134     GDIOBJHDR *ptr = GDI_GetObjPtr( hdc, MAGIC_DONTCARE );
 135     if (!ptr) return NULL;
 136     if ((GDIMAGIC(ptr->wMagic) == DC_MAGIC) ||
 137         (GDIMAGIC(ptr->wMagic) == METAFILE_DC_MAGIC) ||
 138         (GDIMAGIC(ptr->wMagic) == ENHMETAFILE_DC_MAGIC))
 139         return (DC *)ptr;
 140     GDI_ReleaseObj( hdc );
 141     SetLastError( ERROR_INVALID_HANDLE );
 142     return NULL;
 143 }
 144
 145 /***********************************************************************
 146  *           DC_GetDCUpdate
 147  *
 148  * Retrieve a DC ptr while making sure the visRgn is updated.
 149  * This function may call up to USER so the GDI lock should _not_
 150  * be held when calling it.
 151  */
 152 DC *DC_GetDCUpdate( HDC hdc )
 153 {
 154     DC *dc = DC_GetDCPtr( hdc );
 155     if (!dc) return NULL;
 156     while (dc->flags & DC_DIRTY)
 157     {
 158         dc->flags &= ~DC_DIRTY;
 159         if (!(dc->flags & (DC_SAVED | DC_MEMORY)))
 160         {
 161             DCHOOKPROC proc = dc->hookThunk;
 162             if (proc)
 163             {
 164                 DWORD data = dc->dwHookData;
 165                 GDI_ReleaseObj( hdc );
 166                 proc( hdc, DCHC_INVALIDVISRGN, data, 0 );
 167                 if (!(dc = DC_GetDCPtr( hdc ))) break;
 168                 /* otherwise restart the loop in case it became dirty again in the meantime */
 169             }
 170         }
 171     }
 172     return dc;
 173 }
 174
 175
 176 /***********************************************************************
 177  *           DC_DeleteObject
 178  */
 179 static BOOL DC_DeleteObject( HGDIOBJ handle, void *obj )
 180 {
 181     GDI_ReleaseObj( handle );
 182     return DeleteDC( handle );
 183 }
 184
 185
 186 /***********************************************************************
 187  *           DC_InitDC
 188  *
 189  * Setup device-specific DC values for a newly created DC.
 190  */
 191 void DC_InitDC( DC* dc )
 192 {
 193     RealizeDefaultPalette16( dc->hSelf );
 194     SetTextColor( dc->hSelf, dc->textColor );
 195     SetBkColor( dc->hSelf, dc->backgroundColor );
 196     SelectObject( dc->hSelf, dc->hPen );
 197     SelectObject( dc->hSelf, dc->hBrush );
 198     SelectObject( dc->hSelf, dc->hFont );
 199     CLIPPING_UpdateGCRegion( dc );
 200 }
 201
 202
 203 /***********************************************************************
 204  *           DC_InvertXform
 205  *
 206  * Computes the inverse of the transformation xformSrc and stores it to
 207  * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
 208  * is singular.
 209  */
 210 static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
 211 {
 212     FLOAT determinant;
 213
 214     determinant = xformSrc->eM11*xformSrc->eM22 -
 215         xformSrc->eM12*xformSrc->eM21;
 216     if (determinant > -1e-12 && determinant < 1e-12)
 217         return FALSE;
 218
 219     xformDest->eM11 =  xformSrc->eM22 / determinant;
 220     xformDest->eM12 = -xformSrc->eM12 / determinant;
 221     xformDest->eM21 = -xformSrc->eM21 / determinant;
 222     xformDest->eM22 =  xformSrc->eM11 / determinant;
 223     xformDest->eDx  = -xformSrc->eDx * xformDest->eM11 -
 224                        xformSrc->eDy * xformDest->eM21;
 225     xformDest->eDy  = -xformSrc->eDx * xformDest->eM12 -
 226                        xformSrc->eDy * xformDest->eM22;
 227
 228     return TRUE;
 229 }
 230
 231
 232 /***********************************************************************
 233  *           DC_UpdateXforms
 234  *
 235  * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
 236  * fields of the specified DC by creating a transformation that
 237  * represents the current mapping mode and combining it with the DC's
 238  * world transform. This function should be called whenever the
 239  * parameters associated with the mapping mode (window and viewport
 240  * extents and origins) or the world transform change.
 241  */
 242 void DC_UpdateXforms( DC *dc )
 243 {
 244     XFORM xformWnd2Vport;
 245     FLOAT scaleX, scaleY;
 246
 247     /* Construct a transformation to do the window-to-viewport conversion */
 248     scaleX = (FLOAT)dc->vportExtX / (FLOAT)dc->wndExtX;
 249     scaleY = (FLOAT)dc->vportExtY / (FLOAT)dc->wndExtY;
 250     xformWnd2Vport.eM11 = scaleX;
 251     xformWnd2Vport.eM12 = 0.0;
 252     xformWnd2Vport.eM21 = 0.0;
 253     xformWnd2Vport.eM22 = scaleY;
 254     xformWnd2Vport.eDx  = (FLOAT)dc->vportOrgX -
 255         scaleX * (FLOAT)dc->wndOrgX;
 256     xformWnd2Vport.eDy  = (FLOAT)dc->vportOrgY -
 257         scaleY * (FLOAT)dc->wndOrgY;
 258
 259     /* Combine with the world transformation */
 260     CombineTransform( &dc->xformWorld2Vport, &dc->xformWorld2Wnd,
 261         &xformWnd2Vport );
 262
 263     /* Create inverse of world-to-viewport transformation */
 264     dc->vport2WorldValid = DC_InvertXform( &dc->xformWorld2Vport,
 265         &dc->xformVport2World );
 266 }
 267
 268
 269 /***********************************************************************
 270  *           GetDCState    (GDI.179)
 271  */
 272 HDC16 WINAPI GetDCState16( HDC16 hdc )
 273 {
 274     DC * newdc, * dc;
 275     HGDIOBJ handle;
 276
 277     if (!(dc = DC_GetDCPtr( hdc ))) return 0;
 278     if (!(newdc = GDI_AllocObject( sizeof(DC), DC_MAGIC, &handle, &dc_funcs )))
 279     {
 280       GDI_ReleaseObj( hdc );
 281       return 0;
 282     }
 283     TRACE("(%04x): returning %04x\n", hdc, handle );
 284
 285     newdc->flags            = dc->flags | DC_SAVED;
 286     newdc->hPen             = dc->hPen;
 287     newdc->hBrush           = dc->hBrush;
 288     newdc->hFont            = dc->hFont;
 289     newdc->hBitmap          = dc->hBitmap;
 290     newdc->hDevice          = dc->hDevice;
 291     newdc->hPalette         = dc->hPalette;
 292     newdc->totalExtent      = dc->totalExtent;
 293     newdc->bitsPerPixel     = dc->bitsPerPixel;
 294     newdc->ROPmode          = dc->ROPmode;
 295     newdc->polyFillMode     = dc->polyFillMode;
 296     newdc->stretchBltMode   = dc->stretchBltMode;
 297     newdc->relAbsMode       = dc->relAbsMode;
 298     newdc->backgroundMode   = dc->backgroundMode;
 299     newdc->backgroundColor  = dc->backgroundColor;
 300     newdc->textColor        = dc->textColor;
 301     newdc->brushOrgX        = dc->brushOrgX;
 302     newdc->brushOrgY        = dc->brushOrgY;
 303     newdc->textAlign        = dc->textAlign;
 304     newdc->charExtra        = dc->charExtra;
 305     newdc->breakTotalExtra  = dc->breakTotalExtra;
 306     newdc->breakCount       = dc->breakCount;
 307     newdc->breakExtra       = dc->breakExtra;
 308     newdc->breakRem         = dc->breakRem;
 309     newdc->MapMode          = dc->MapMode;
 310     newdc->GraphicsMode     = dc->GraphicsMode;
 311     newdc->CursPosX         = dc->CursPosX;
 312     newdc->CursPosY         = dc->CursPosY;
 313     newdc->ArcDirection     = dc->ArcDirection;
 314     newdc->xformWorld2Wnd   = dc->xformWorld2Wnd;
 315     newdc->xformWorld2Vport = dc->xformWorld2Vport;
 316     newdc->xformVport2World = dc->xformVport2World;
 317     newdc->vport2WorldValid = dc->vport2WorldValid;
 318     newdc->wndOrgX          = dc->wndOrgX;
 319     newdc->wndOrgY          = dc->wndOrgY;
 320     newdc->wndExtX          = dc->wndExtX;
 321     newdc->wndExtY          = dc->wndExtY;
 322     newdc->vportOrgX        = dc->vportOrgX;
 323     newdc->vportOrgY        = dc->vportOrgY;
 324     newdc->vportExtX        = dc->vportExtX;
 325     newdc->vportExtY        = dc->vportExtY;
 326
 327     newdc->hSelf = (HDC)handle;
 328     newdc->saveLevel = 0;
 329
 330     PATH_InitGdiPath( &newdc->path );
 331
 332     newdc->pAbortProc = NULL;
 333     newdc->hookThunk  = NULL;
 334     newdc->hookProc   = 0;
 335
 336     /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
 337
 338     newdc->hGCClipRgn = newdc->hVisRgn = 0;
 339     if (dc->hClipRgn)
 340     {
 341         newdc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 342         CombineRgn( newdc->hClipRgn, dc->hClipRgn, 0, RGN_COPY );
 343     }
 344     else
 345         newdc->hClipRgn = 0;
 346
 347     if(dc->gdiFont) {
 348         newdc->gdiFont = dc->gdiFont;
 349     } else
 350         newdc->gdiFont = 0;
 351
 352     GDI_ReleaseObj( handle );
 353     GDI_ReleaseObj( hdc );
 354     return handle;
 355 }
 356
 357
 358 /***********************************************************************
 359  *           SetDCState    (GDI.180)
 360  */
 361 void WINAPI SetDCState16( HDC16 hdc, HDC16 hdcs )
 362 {
 363     DC *dc, *dcs;
 364
 365     if (!(dc = DC_GetDCUpdate( hdc ))) return;
 366     if (!(dcs = DC_GetDCPtr( hdcs )))
 367     {
 368       GDI_ReleaseObj( hdc );
 369       return;
 370     }
 371     if (!dcs->flags & DC_SAVED)
 372     {
 373       GDI_ReleaseObj( hdc );
 374       GDI_ReleaseObj( hdcs );
 375       return;
 376     }
 377     TRACE("%04x %04x\n", hdc, hdcs );
 378
 379     dc->flags            = dcs->flags & ~(DC_SAVED | DC_DIRTY);
 380     dc->hDevice          = dcs->hDevice;
 381     dc->totalExtent      = dcs->totalExtent;
 382     dc->ROPmode          = dcs->ROPmode;
 383     dc->polyFillMode     = dcs->polyFillMode;
 384     dc->stretchBltMode   = dcs->stretchBltMode;
 385     dc->relAbsMode       = dcs->relAbsMode;
 386     dc->backgroundMode   = dcs->backgroundMode;
 387     dc->backgroundColor  = dcs->backgroundColor;
 388     dc->textColor        = dcs->textColor;
 389     dc->brushOrgX        = dcs->brushOrgX;
 390     dc->brushOrgY        = dcs->brushOrgY;
 391     dc->textAlign        = dcs->textAlign;
 392     dc->charExtra        = dcs->charExtra;
 393     dc->breakTotalExtra  = dcs->breakTotalExtra;
 394     dc->breakCount       = dcs->breakCount;
 395     dc->breakExtra       = dcs->breakExtra;
 396     dc->breakRem         = dcs->breakRem;
 397     dc->MapMode          = dcs->MapMode;
 398     dc->GraphicsMode     = dcs->GraphicsMode;
 399     dc->CursPosX         = dcs->CursPosX;
 400     dc->CursPosY         = dcs->CursPosY;
 401     dc->ArcDirection     = dcs->ArcDirection;
 402     dc->xformWorld2Wnd   = dcs->xformWorld2Wnd;
 403     dc->xformWorld2Vport = dcs->xformWorld2Vport;
 404     dc->xformVport2World = dcs->xformVport2World;
 405     dc->vport2WorldValid = dcs->vport2WorldValid;
 406
 407     dc->wndOrgX          = dcs->wndOrgX;
 408     dc->wndOrgY          = dcs->wndOrgY;
 409     dc->wndExtX          = dcs->wndExtX;
 410     dc->wndExtY          = dcs->wndExtY;
 411     dc->vportOrgX        = dcs->vportOrgX;
 412     dc->vportOrgY        = dcs->vportOrgY;
 413     dc->vportExtX        = dcs->vportExtX;
 414     dc->vportExtY        = dcs->vportExtY;
 415
 416     if (!(dc->flags & DC_MEMORY)) dc->bitsPerPixel = dcs->bitsPerPixel;
 417
 418     if (dcs->hClipRgn)
 419     {
 420         if (!dc->hClipRgn) dc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 421         CombineRgn( dc->hClipRgn, dcs->hClipRgn, 0, RGN_COPY );
 422     }
 423     else
 424     {
 425         if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 426         dc->hClipRgn = 0;
 427     }
 428     CLIPPING_UpdateGCRegion( dc );
 429
 430     SelectObject( hdc, dcs->hBitmap );
 431     SelectObject( hdc, dcs->hBrush );
 432     SelectObject( hdc, dcs->hFont );
 433     SelectObject( hdc, dcs->hPen );
 434     SetBkColor( hdc, dcs->backgroundColor);
 435     SetTextColor( hdc, dcs->textColor);
 436     GDISelectPalette16( hdc, dcs->hPalette, FALSE );
 437     GDI_ReleaseObj( hdcs );
 438     GDI_ReleaseObj( hdc );
 439 }
 440
 441
 442 /***********************************************************************
 443  *           SaveDC    (GDI.30)
 444  */
 445 INT16 WINAPI SaveDC16( HDC16 hdc )
 446 {
 447     return (INT16)SaveDC( hdc );
 448 }
 449
 450
 451 /***********************************************************************
 452  *           SaveDC    (GDI32.@)
 453  */
 454 INT WINAPI SaveDC( HDC hdc )
 455 {
 456     HDC hdcs;
 457     DC * dc, * dcs;
 458     INT ret;
 459
 460     dc = DC_GetDCPtr( hdc );
 461     if (!dc) return 0;
 462
 463     if(dc->funcs->pSaveDC)
 464     {
 465         ret = dc->funcs->pSaveDC( dc->physDev );
 466         GDI_ReleaseObj( hdc );
 467         return ret;
 468     }
 469
 470     if (!(hdcs = GetDCState16( hdc )))
 471     {
 472       GDI_ReleaseObj( hdc );
 473       return 0;
 474     }
 475     dcs = DC_GetDCPtr( hdcs );
 476
 477     /* Copy path. The reason why path saving / restoring is in SaveDC/
 478      * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
 479      * functions are only in Win16 (which doesn't have paths) and that
 480      * SetDCState doesn't allow us to signal an error (which can happen
 481      * when copying paths).
 482      */
 483     if (!PATH_AssignGdiPath( &dcs->path, &dc->path ))
 484     {
 485         GDI_ReleaseObj( hdc );
 486         GDI_ReleaseObj( hdcs );
 487         DeleteDC( hdcs );
 488         return 0;
 489     }
 490
 491     dcs->header.hNext = dc->header.hNext;
 492     dc->header.hNext = hdcs;
 493     TRACE("(%04x): returning %d\n", hdc, dc->saveLevel+1 );
 494     ret = ++dc->saveLevel;
 495     GDI_ReleaseObj( hdcs );
 496     GDI_ReleaseObj( hdc );
 497     return ret;
 498 }
 499
 500
 501 /***********************************************************************
 502  *           RestoreDC    (GDI.39)
 503  */
 504 BOOL16 WINAPI RestoreDC16( HDC16 hdc, INT16 level )
 505 {
 506     return RestoreDC( hdc, level );
 507 }
 508
 509
 510 /***********************************************************************
 511  *           RestoreDC    (GDI32.@)
 512  */
 513 BOOL WINAPI RestoreDC( HDC hdc, INT level )
 514 {
 515     DC * dc, * dcs;
 516     BOOL success;
 517
 518     TRACE("%04x %d\n", hdc, level );
 519     dc = DC_GetDCUpdate( hdc );
 520     if(!dc) return FALSE;
 521     if(dc->funcs->pRestoreDC)
 522     {
 523         success = dc->funcs->pRestoreDC( dc->physDev, level );
 524         GDI_ReleaseObj( hdc );
 525         return success;
 526     }
 527
 528     if (level == -1) level = dc->saveLevel;
 529     if ((level < 1)
 530             /* This pair of checks disagrees with MSDN "Platform SDK:
 531                Windows GDI" July 2000 which says all negative values
 532                for level will be interpreted as an instance relative
 533                to the current state.  Restricting it to just -1 does
 534                not satisfy this */
 535         || (level > dc->saveLevel))
 536     {
 537         GDI_ReleaseObj( hdc );
 538         return FALSE;
 539     }
 540
 541     success=TRUE;
 542     while (dc->saveLevel >= level)
 543     {
 544         HDC16 hdcs = dc->header.hNext;
 545         if (!(dcs = DC_GetDCPtr( hdcs )))
 546         {
 547           GDI_ReleaseObj( hdc );
 548           return FALSE;
 549         }
 550         dc->header.hNext = dcs->header.hNext;
 551         if (--dc->saveLevel < level)
 552         {
 553             SetDCState16( hdc, hdcs );
 554             if (!PATH_AssignGdiPath( &dc->path, &dcs->path ))
 555                 /* FIXME: This might not be quite right, since we're
 556                  * returning FALSE but still destroying the saved DC state */
 557                 success=FALSE;
 558         }
 559         GDI_ReleaseObj( hdcs );
 560         GDI_ReleaseObj( hdc );
 561         DeleteDC( hdcs );
 562         if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
 563     }
 564     GDI_ReleaseObj( hdc );
 565     return success;
 566 }
 567
 568
 569 /***********************************************************************
 570  *           CreateDC    (GDI.53)
 571  */
 572 HDC16 WINAPI CreateDC16( LPCSTR driver, LPCSTR device, LPCSTR output,
 573                          const DEVMODEA *initData )
 574 {
 575     return CreateDCA( driver, device, output, initData );
 576 }
 577
 578 /***********************************************************************
 579  *           CreateDCA    (GDI32.@)
 580  */
 581 HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
 582                           const DEVMODEA *initData )
 583 {
 584     HDC hdc;
 585     DC * dc;
 586     const DC_FUNCTIONS *funcs;
 587     char buf[300];
 588
 589     if ((!driver) && (!device))
 590         return 0;
 591
 592     GDI_CheckNotLock();
 593
 594     if (!device || !DRIVER_GetDriverName( device, buf, sizeof(buf) ))
 595         strcpy(buf, driver);
 596
 597     if (!(funcs = DRIVER_load_driver( buf )))
 598     {
 599         ERR( "no driver found for %s\n", buf );
 600         return 0;
 601     }
 602     if (!(dc = DC_AllocDC( funcs )))
 603     {
 604         DRIVER_release_driver( funcs );
 605         return 0;
 606     }
 607
 608     dc->flags = 0;
 609
 610     TRACE("(driver=%s, device=%s, output=%s): returning %04x\n",
 611                debugstr_a(driver), debugstr_a(device), debugstr_a(output), dc->hSelf );
 612
 613     if (dc->funcs->pCreateDC &&
 614         !dc->funcs->pCreateDC( dc, &dc->physDev, buf, device, output, initData ))
 615     {
 616         WARN("creation aborted by device\n" );
 617         GDI_FreeObject( dc->hSelf, dc );
 618         DRIVER_release_driver( funcs );
 619         return 0;
 620     }
 621
 622     dc->totalExtent.left   = 0;
 623     dc->totalExtent.top    = 0;
 624     dc->totalExtent.right  = GetDeviceCaps( dc->hSelf, HORZRES );
 625     dc->totalExtent.bottom = GetDeviceCaps( dc->hSelf, VERTRES );
 626     dc->hVisRgn = CreateRectRgnIndirect( &dc->totalExtent );
 627
 628     DC_InitDC( dc );
 629     hdc = dc->hSelf;
 630     GDI_ReleaseObj( hdc );
 631     return hdc;
 632 }
 633
 634
 635 /***********************************************************************
 636  *           CreateDCW    (GDI32.@)
 637  */
 638 HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 639                           const DEVMODEW *initData )
 640 {
 641     LPSTR driverA = HEAP_strdupWtoA( GetProcessHeap(), 0, driver );
 642     LPSTR deviceA = HEAP_strdupWtoA( GetProcessHeap(), 0, device );
 643     LPSTR outputA = HEAP_strdupWtoA( GetProcessHeap(), 0, output );
 644     HDC res = CreateDCA( driverA, deviceA, outputA,
 645                             (const DEVMODEA *)initData /*FIXME*/ );
 646     HeapFree( GetProcessHeap(), 0, driverA );
 647     HeapFree( GetProcessHeap(), 0, deviceA );
 648     HeapFree( GetProcessHeap(), 0, outputA );
 649     return res;
 650 }
 651
 652
 653 /***********************************************************************
 654  *           CreateIC    (GDI.153)
 655  */
 656 HDC16 WINAPI CreateIC16( LPCSTR driver, LPCSTR device, LPCSTR output,
 657                          const DEVMODEA* initData )
 658 {
 659       /* Nothing special yet for ICs */
 660     return CreateDC16( driver, device, output, initData );
 661 }
 662
 663
 664 /***********************************************************************
 665  *           CreateICA    (GDI32.@)
 666  */
 667 HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
 668                           const DEVMODEA* initData )
 669 {
 670       /* Nothing special yet for ICs */
 671     return CreateDCA( driver, device, output, initData );
 672 }
 673
 674
 675 /***********************************************************************
 676  *           CreateICW    (GDI32.@)
 677  */
 678 HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 679                           const DEVMODEW* initData )
 680 {
 681       /* Nothing special yet for ICs */
 682     return CreateDCW( driver, device, output, initData );
 683 }
 684
 685
 686 /***********************************************************************
 687  *           CreateCompatibleDC    (GDI.52)
 688  */
 689 HDC16 WINAPI CreateCompatibleDC16( HDC16 hdc )
 690 {
 691     return (HDC16)CreateCompatibleDC( hdc );
 692 }
 693
 694
 695 /***********************************************************************
 696  *           CreateCompatibleDC   (GDI32.@)
 697  */
 698 HDC WINAPI CreateCompatibleDC( HDC hdc )
 699 {
 700     DC *dc, *origDC;
 701     const DC_FUNCTIONS *funcs;
 702
 703     GDI_CheckNotLock();
 704
 705     if ((origDC = GDI_GetObjPtr( hdc, DC_MAGIC )))
 706     {
 707         funcs = origDC->funcs;
 708         GDI_ReleaseObj( hdc ); /* can't hold the lock while loading the driver */
 709         funcs = DRIVER_get_driver( funcs );
 710     }
 711     else funcs = DRIVER_load_driver( "DISPLAY" );
 712
 713     if (!funcs) return 0;
 714
 715     if (!(dc = DC_AllocDC( funcs )))
 716     {
 717         DRIVER_release_driver( funcs );
 718         return 0;
 719     }
 720
 721     TRACE("(%04x): returning %04x\n",
 722                hdc, dc->hSelf );
 723
 724     dc->flags        = DC_MEMORY;
 725     dc->bitsPerPixel = 1;
 726     dc->hBitmap      = GetStockObject( DEFAULT_BITMAP );
 727
 728     /* Copy the driver-specific physical device info into
 729      * the new DC. The driver may use this read-only info
 730      * while creating the compatible DC below. */
 731     if ((origDC = GDI_GetObjPtr( hdc, DC_MAGIC ))) dc->physDev = origDC->physDev;
 732
 733     if (dc->funcs->pCreateDC &&
 734         !dc->funcs->pCreateDC( dc, &dc->physDev, NULL, NULL, NULL, NULL ))
 735     {
 736         WARN("creation aborted by device\n");
 737         GDI_FreeObject( dc->hSelf, dc );
 738         if (origDC) GDI_ReleaseObj( hdc );
 739         DRIVER_release_driver( funcs );
 740         return 0;
 741     }
 742
 743     dc->totalExtent.left   = 0;
 744     dc->totalExtent.top    = 0;
 745     dc->totalExtent.right  = 1;  /* default bitmap is 1x1 */
 746     dc->totalExtent.bottom = 1;
 747     dc->hVisRgn = CreateRectRgnIndirect( &dc->totalExtent );
 748
 749     DC_InitDC( dc );
 750     GDI_ReleaseObj( dc->hSelf );
 751     if (origDC) GDI_ReleaseObj( hdc );
 752     return dc->hSelf;
 753 }
 754
 755
 756 /***********************************************************************
 757  *           DeleteDC    (GDI.68)
 758  */
 759 BOOL16 WINAPI DeleteDC16( HDC16 hdc )
 760 {
 761     return DeleteDC( hdc );
 762 }
 763
 764
 765 /***********************************************************************
 766  *           DeleteDC    (GDI32.@)
 767  */
 768 BOOL WINAPI DeleteDC( HDC hdc )
 769 {
 770     const DC_FUNCTIONS *funcs = NULL;
 771     DC * dc;
 772
 773     TRACE("%04x\n", hdc );
 774
 775     GDI_CheckNotLock();
 776
 777     if (!(dc = GDI_GetObjPtr( hdc, DC_MAGIC ))) return FALSE;
 778
 779     /* Call hook procedure to check whether is it OK to delete this DC */
 780     if (dc->hookThunk && !(dc->flags & (DC_SAVED | DC_MEMORY)))
 781     {
 782         DCHOOKPROC proc = dc->hookThunk;
 783         if (proc)
 784         {
 785             DWORD data = dc->dwHookData;
 786             GDI_ReleaseObj( hdc );
 787             if (!proc( hdc, DCHC_DELETEDC, data, 0 )) return FALSE;
 788             if (!(dc = DC_GetDCPtr( hdc ))) return TRUE;  /* deleted by the hook */
 789         }
 790     }
 791
 792     while (dc->saveLevel)
 793     {
 794         DC * dcs;
 795         HDC16 hdcs = dc->header.hNext;
 796         if (!(dcs = DC_GetDCPtr( hdcs ))) break;
 797         dc->header.hNext = dcs->header.hNext;
 798         dc->saveLevel--;
 799         if (dcs->hClipRgn) DeleteObject( dcs->hClipRgn );
 800         if (dcs->hVisRgn) DeleteObject( dcs->hVisRgn );
 801         if (dcs->hGCClipRgn) DeleteObject( dcs->hGCClipRgn );
 802         PATH_DestroyGdiPath(&dcs->path);
 803         GDI_FreeObject( hdcs, dcs );
 804     }
 805
 806     if (!(dc->flags & DC_SAVED))
 807     {
 808         SelectObject( hdc, GetStockObject(BLACK_PEN) );
 809         SelectObject( hdc, GetStockObject(WHITE_BRUSH) );
 810         SelectObject( hdc, GetStockObject(SYSTEM_FONT) );
 811         SelectObject( hdc, GetStockObject(DEFAULT_BITMAP) );
 812         funcs = dc->funcs;
 813         if (dc->funcs->pDeleteDC) dc->funcs->pDeleteDC(dc->physDev);
 814         dc->physDev = NULL;
 815     }
 816
 817     if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 818     if (dc->hVisRgn) DeleteObject( dc->hVisRgn );
 819     if (dc->hGCClipRgn) DeleteObject( dc->hGCClipRgn );
 820     PATH_DestroyGdiPath(&dc->path);
 821
 822     GDI_FreeObject( hdc, dc );
 823     if (funcs) DRIVER_release_driver( funcs );  /* do that after releasing the GDI lock */
 824     return TRUE;
 825 }
 826
 827
 828 /***********************************************************************
 829  *           ResetDC    (GDI.376)
 830  */
 831 HDC16 WINAPI ResetDC16( HDC16 hdc, const DEVMODEA *devmode )
 832 {
 833     return ResetDCA(hdc, devmode);
 834 }
 835
 836
 837 /***********************************************************************
 838  *           ResetDCA    (GDI32.@)
 839  */
 840 HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
 841 {
 842     DC *dc;
 843     HDC ret = hdc;
 844
 845     if ((dc = DC_GetDCPtr( hdc )))
 846     {
 847         if (dc->funcs->pResetDC) ret = dc->funcs->pResetDC( dc->physDev, devmode );
 848         GDI_ReleaseObj( hdc );
 849     }
 850     return ret;
 851 }
 852
 853
 854 /***********************************************************************
 855  *           ResetDCW    (GDI32.@)
 856  */
 857 HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
 858 {
 859     return ResetDCA(hdc, (const DEVMODEA*)devmode); /* FIXME */
 860 }
 861
 862
 863 /***********************************************************************
 864  *           GetDeviceCaps    (GDI.80)
 865  */
 866 INT16 WINAPI GetDeviceCaps16( HDC16 hdc, INT16 cap )
 867 {
 868     INT16 ret = GetDeviceCaps( hdc, cap );
 869     /* some apps don't expect -1 and think it's a B&W screen */
 870     if ((cap == NUMCOLORS) && (ret == -1)) ret = 2048;
 871     return ret;
 872 }
 873
 874
 875 /***********************************************************************
 876  *           GetDeviceCaps    (GDI32.@)
 877  */
 878 INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
 879 {
 880     DC *dc;
 881     INT ret = 0;
 882
 883     if ((dc = DC_GetDCPtr( hdc )))
 884     {
 885         if (dc->funcs->pGetDeviceCaps) ret = dc->funcs->pGetDeviceCaps( dc->physDev, cap );
 886         GDI_ReleaseObj( hdc );
 887     }
 888     return ret;
 889 }
 890
 891
 892 /***********************************************************************
 893  *           SetBkColor    (GDI.1)
 894  */
 895 COLORREF WINAPI SetBkColor16( HDC16 hdc, COLORREF color )
 896 {
 897     return SetBkColor( hdc, color );
 898 }
 899
 900
 901 /***********************************************************************
 902  *           SetBkColor    (GDI32.@)
 903  */
 904 COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
 905 {
 906     COLORREF oldColor;
 907     DC * dc = DC_GetDCPtr( hdc );
 908
 909     if (!dc) return CLR_INVALID;
 910     oldColor = dc->backgroundColor;
 911     if (dc->funcs->pSetBkColor)
 912     {
 913         color = dc->funcs->pSetBkColor(dc->physDev, color);
 914         if (color == CLR_INVALID)  /* don't change it */
 915         {
 916             color = oldColor;
 917             oldColor = CLR_INVALID;
 918         }
 919     }
 920     dc->backgroundColor = color;
 921     GDI_ReleaseObj( hdc );
 922     return oldColor;
 923 }
 924
 925
 926 /***********************************************************************
 927  *           SetTextColor    (GDI.9)
 928  */
 929 COLORREF WINAPI SetTextColor16( HDC16 hdc, COLORREF color )
 930 {
 931     return SetTextColor( hdc, color );
 932 }
 933
 934
 935 /***********************************************************************
 936  *           SetTextColor    (GDI32.@)
 937  */
 938 COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
 939 {
 940     COLORREF oldColor;
 941     DC * dc = DC_GetDCPtr( hdc );
 942
 943     if (!dc) return CLR_INVALID;
 944     oldColor = dc->textColor;
 945     if (dc->funcs->pSetTextColor)
 946     {
 947         color = dc->funcs->pSetTextColor(dc->physDev, color);
 948         if (color == CLR_INVALID)  /* don't change it */
 949         {
 950             color = oldColor;
 951             oldColor = CLR_INVALID;
 952         }
 953     }
 954     dc->textColor = color;
 955     GDI_ReleaseObj( hdc );
 956     return oldColor;
 957 }
 958
 959 /***********************************************************************
 960  *           SetTextAlign    (GDI.346)
 961  */
 962 UINT16 WINAPI SetTextAlign16( HDC16 hdc, UINT16 align )
 963 {
 964     return SetTextAlign( hdc, align );
 965 }
 966
 967
 968 /***********************************************************************
 969  *           SetTextAlign    (GDI32.@)
 970  */
 971 UINT WINAPI SetTextAlign( HDC hdc, UINT align )
 972 {
 973     UINT prevAlign;
 974     DC *dc = DC_GetDCPtr( hdc );
 975     if (!dc) return 0x0;
 976     if (dc->funcs->pSetTextAlign)
 977         prevAlign = dc->funcs->pSetTextAlign(dc->physDev, align);
 978     else {
 979         prevAlign = dc->textAlign;
 980         dc->textAlign = align;
 981     }
 982     GDI_ReleaseObj( hdc );
 983     return prevAlign;
 984 }
 985
 986 /***********************************************************************
 987  *           GetDCOrgEx  (GDI32.@)
 988  */
 989 BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
 990 {
 991     DC * dc;
 992
 993     if (!lpp) return FALSE;
 994     if (!(dc = DC_GetDCPtr( hDC ))) return FALSE;
 995
 996     lpp->x = lpp->y = 0;
 997     if (dc->funcs->pGetDCOrgEx) dc->funcs->pGetDCOrgEx( dc->physDev, lpp );
 998     GDI_ReleaseObj( hDC );
 999     return TRUE;
1000 }
1001
1002
1003 /***********************************************************************
1004  *           GetDCOrg    (GDI.79)
1005  */
1006 DWORD WINAPI GetDCOrg16( HDC16 hdc )
1007 {
1008     POINT       pt;
1009     if( GetDCOrgEx( hdc, &pt) )
1010         return MAKELONG( (WORD)pt.x, (WORD)pt.y );
1011     return 0;
1012 }
1013
1014
1015 /***********************************************************************
1016  *           SetDCOrg    (GDI.117)
1017  */
1018 DWORD WINAPI SetDCOrg16( HDC16 hdc, INT16 x, INT16 y )
1019 {
1020     DWORD prevOrg = 0;
1021     DC *dc = DC_GetDCPtr( hdc );
1022     if (!dc) return 0;
1023     if (dc->funcs->pSetDCOrg) prevOrg = dc->funcs->pSetDCOrg( dc->physDev, x, y );
1024     GDI_ReleaseObj( hdc );
1025     return prevOrg;
1026 }
1027
1028
1029 /***********************************************************************
1030  *           SetGraphicsMode    (GDI32.@)
1031  */
1032 INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
1033 {
1034     INT ret = 0;
1035     DC *dc = DC_GetDCPtr( hdc );
1036
1037     /* One would think that setting the graphics mode to GM_COMPATIBLE
1038      * would also reset the world transformation matrix to the unity
1039      * matrix. However, in Windows, this is not the case. This doesn't
1040      * make a lot of sense to me, but that's the way it is.
1041      */
1042     if (!dc) return 0;
1043     if ((mode > 0) || (mode <= GM_LAST))
1044     {
1045         ret = dc->GraphicsMode;
1046         dc->GraphicsMode = mode;
1047     }
1048     GDI_ReleaseObj( hdc );
1049     return ret;
1050 }
1051
1052
1053 /***********************************************************************
1054  *           SetArcDirection    (GDI.525)
1055  */
1056 INT16 WINAPI SetArcDirection16( HDC16 hdc, INT16 nDirection )
1057 {
1058     return SetArcDirection( (HDC)hdc, (INT)nDirection );
1059 }
1060
1061
1062 /***********************************************************************
1063  *           SetArcDirection    (GDI32.@)
1064  */
1065 INT WINAPI SetArcDirection( HDC hdc, INT nDirection )
1066 {
1067     DC * dc;
1068     INT nOldDirection = 0;
1069
1070     if (nDirection!=AD_COUNTERCLOCKWISE && nDirection!=AD_CLOCKWISE)
1071     {
1072         SetLastError(ERROR_INVALID_PARAMETER);
1073         return 0;
1074     }
1075
1076     if ((dc = DC_GetDCPtr( hdc )))
1077     {
1078         nOldDirection = dc->ArcDirection;
1079         dc->ArcDirection = nDirection;
1080         GDI_ReleaseObj( hdc );
1081     }
1082     return nOldDirection;
1083 }
1084
1085
1086 /***********************************************************************
1087  *           GetWorldTransform    (GDI32.@)
1088  */
1089 BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
1090 {
1091     DC * dc;
1092     if (!xform) return FALSE;
1093     if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
1094     *xform = dc->xformWorld2Wnd;
1095     GDI_ReleaseObj( hdc );
1096     return TRUE;
1097 }
1098
1099
1100 /***********************************************************************
1101  *           SetWorldTransform    (GDI32.@)
1102  */
1103 BOOL WINAPI SetWorldTransform( HDC hdc, const XFORM *xform )
1104 {
1105     BOOL ret = FALSE;
1106     DC *dc = DC_GetDCPtr( hdc );
1107
1108     if (!dc) return FALSE;
1109     if (!xform) goto done;
1110
1111     /* Check that graphics mode is GM_ADVANCED */
1112     if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1113
1114     dc->xformWorld2Wnd = *xform;
1115     DC_UpdateXforms( dc );
1116     ret = TRUE;
1117  done:
1118     GDI_ReleaseObj( hdc );
1119     return ret;
1120 }
1121
1122
1123 /****************************************************************************
1124  * ModifyWorldTransform [GDI32.@]
1125  * Modifies the world transformation for a device context.
1126  *
1127  * PARAMS
1128  *    hdc   [I] Handle to device context
1129  *    xform [I] XFORM structure that will be used to modify the world
1130  *              transformation
1131  *    iMode [I] Specifies in what way to modify the world transformation
1132  *              Possible values:
1133  *              MWT_IDENTITY
1134  *                 Resets the world transformation to the identity matrix.
1135  *                 The parameter xform is ignored.
1136  *              MWT_LEFTMULTIPLY
1137  *                 Multiplies xform into the world transformation matrix from
1138  *                 the left.
1139  *              MWT_RIGHTMULTIPLY
1140  *                 Multiplies xform into the world transformation matrix from
1141  *                 the right.
1142  *
1143  * RETURNS STD
1144  */
1145 BOOL WINAPI ModifyWorldTransform( HDC hdc, const XFORM *xform,
1146     DWORD iMode )
1147 {
1148     BOOL ret = FALSE;
1149     DC *dc = DC_GetDCPtr( hdc );
1150
1151     /* Check for illegal parameters */
1152     if (!dc) return FALSE;
1153     if (!xform) goto done;
1154
1155     /* Check that graphics mode is GM_ADVANCED */
1156     if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1157
1158     switch (iMode)
1159     {
1160         case MWT_IDENTITY:
1161             dc->xformWorld2Wnd.eM11 = 1.0f;
1162             dc->xformWorld2Wnd.eM12 = 0.0f;
1163             dc->xformWorld2Wnd.eM21 = 0.0f;
1164             dc->xformWorld2Wnd.eM22 = 1.0f;
1165             dc->xformWorld2Wnd.eDx  = 0.0f;
1166             dc->xformWorld2Wnd.eDy  = 0.0f;
1167             break;
1168         case MWT_LEFTMULTIPLY:
1169             CombineTransform( &dc->xformWorld2Wnd, xform,
1170                 &dc->xformWorld2Wnd );
1171             break;
1172         case MWT_RIGHTMULTIPLY:
1173             CombineTransform( &dc->xformWorld2Wnd, &dc->xformWorld2Wnd,
1174                 xform );
1175             break;
1176         default:
1177             goto done;
1178     }
1179
1180     DC_UpdateXforms( dc );
1181     ret = TRUE;
1182  done:
1183     GDI_ReleaseObj( hdc );
1184     return ret;
1185 }
1186
1187
1188 /****************************************************************************
1189  * CombineTransform [GDI32.@]
1190  * Combines two transformation matrices.
1191  *
1192  * PARAMS
1193  *    xformResult [O] Stores the result of combining the two matrices
1194  *    xform1      [I] Specifies the first matrix to apply
1195  *    xform2      [I] Specifies the second matrix to apply
1196  *
1197  * REMARKS
1198  *    The same matrix can be passed in for more than one of the parameters.
1199  *
1200  * RETURNS STD
1201  */
1202 BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1203     const XFORM *xform2 )
1204 {
1205     XFORM xformTemp;
1206
1207     /* Check for illegal parameters */
1208     if (!xformResult || !xform1 || !xform2)
1209         return FALSE;
1210
1211     /* Create the result in a temporary XFORM, since xformResult may be
1212      * equal to xform1 or xform2 */
1213     xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1214                      xform1->eM12 * xform2->eM21;
1215     xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1216                      xform1->eM12 * xform2->eM22;
1217     xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1218                      xform1->eM22 * xform2->eM21;
1219     xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1220                      xform1->eM22 * xform2->eM22;
1221     xformTemp.eDx  = xform1->eDx  * xform2->eM11 +
1222                      xform1->eDy  * xform2->eM21 +
1223                      xform2->eDx;
1224     xformTemp.eDy  = xform1->eDx  * xform2->eM12 +
1225                      xform1->eDy  * xform2->eM22 +
1226                      xform2->eDy;
1227
1228     /* Copy the result to xformResult */
1229     *xformResult = xformTemp;
1230
1231     return TRUE;
1232 }
1233
1234
1235 /***********************************************************************
1236  *           SetDCHook   (GDI32.@)
1237  *
1238  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1239  */
1240 BOOL WINAPI SetDCHook( HDC hdc, DCHOOKPROC hookProc, DWORD dwHookData )
1241 {
1242     DC *dc = DC_GetDCPtr( hdc );
1243
1244     if (!dc) return FALSE;
1245     dc->dwHookData = dwHookData;
1246     dc->hookThunk = hookProc;
1247     GDI_ReleaseObj( hdc );
1248     return TRUE;
1249 }
1250
1251
1252 /* relay function to call the 16-bit DC hook proc */
1253 static BOOL16 WINAPI call_dc_hook16( HDC16 hdc, WORD code, DWORD data, LPARAM lParam )
1254 {
1255     FARPROC16 proc = NULL;
1256     DC *dc = DC_GetDCPtr( hdc );
1257     if (!dc) return FALSE;
1258     proc = dc->hookProc;
1259     GDI_ReleaseObj( hdc );
1260     if (!proc) return FALSE;
1261     return GDI_CallTo16_word_wwll( proc, hdc, code, data, lParam );
1262 }
1263
1264 /***********************************************************************
1265  *           SetDCHook   (GDI.190)
1266  */
1267 BOOL16 WINAPI SetDCHook16( HDC16 hdc, FARPROC16 hookProc, DWORD dwHookData )
1268 {
1269     DC *dc = DC_GetDCPtr( hdc );
1270     if (!dc) return FALSE;
1271
1272     dc->hookProc = hookProc;
1273     GDI_ReleaseObj( hdc );
1274     return SetDCHook( hdc, call_dc_hook16, dwHookData );
1275 }
1276
1277
1278 /***********************************************************************
1279  *           GetDCHook   (GDI.191)
1280  */
1281 DWORD WINAPI GetDCHook( HDC16 hdc, FARPROC16 *phookProc )
1282 {
1283     DC *dc = DC_GetDCPtr( hdc );
1284     if (!dc) return 0;
1285     *phookProc = dc->hookProc;
1286     GDI_ReleaseObj( hdc );
1287     return dc->dwHookData;
1288 }
1289
1290
1291 /***********************************************************************
1292  *           SetHookFlags       (GDI.192)
1293  */
1294 WORD WINAPI SetHookFlags16(HDC16 hDC, WORD flags)
1295 {
1296     DC *dc = DC_GetDCPtr( hDC );
1297
1298     if( dc )
1299     {
1300         WORD wRet = dc->flags & DC_DIRTY;
1301
1302         /* "Undocumented Windows" info is slightly confusing.
1303          */
1304
1305         TRACE("hDC %04x, flags %04x\n",hDC,flags);
1306
1307         if( flags & DCHF_INVALIDATEVISRGN )
1308             dc->flags |= DC_DIRTY;
1309         else if( flags & DCHF_VALIDATEVISRGN || !flags )
1310             dc->flags &= ~DC_DIRTY;
1311         GDI_ReleaseObj( hDC );
1312         return wRet;
1313     }
1314     return 0;
1315 }
1316
1317 /***********************************************************************
1318  *           SetICMMode    (GDI32.@)
1319  */
1320 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1321 {
1322 /*FIXME  Asuming that ICM is always off, and cannot be turned on */
1323     if (iEnableICM == ICM_OFF) return ICM_OFF;
1324     if (iEnableICM == ICM_ON) return 0;
1325     if (iEnableICM == ICM_QUERY) return ICM_OFF;
1326     return 0;
1327 }
1328
1329 /***********************************************************************
1330  *           GetDeviceGammaRamp    (GDI32.@)
1331  */
1332 BOOL WINAPI GetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1333 {
1334     BOOL ret = FALSE;
1335     DC *dc = DC_GetDCPtr( hDC );
1336
1337     if( dc )
1338     {
1339         if (dc->funcs->pGetDeviceGammaRamp)
1340             ret = dc->funcs->pGetDeviceGammaRamp(dc->physDev, ptr);
1341         GDI_ReleaseObj( hDC );
1342     }
1343     return ret;
1344 }
1345
1346 /***********************************************************************
1347  *           SetDeviceGammaRamp    (GDI32.@)
1348  */
1349 BOOL WINAPI SetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1350 {
1351     BOOL ret = FALSE;
1352     DC *dc = DC_GetDCPtr( hDC );
1353
1354     if( dc )
1355     {
1356         if (dc->funcs->pSetDeviceGammaRamp)
1357             ret = dc->funcs->pSetDeviceGammaRamp(dc->physDev, ptr);
1358         GDI_ReleaseObj( hDC );
1359     }
1360     return ret;
1361 }
1362
1363 /***********************************************************************
1364  *           GetColorSpace    (GDI32.@)
1365  */
1366 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1367 {
1368 /*FIXME    Need to to whatever GetColorSpace actually does */
1369     return 0;
1370 }
1371
1372 /***********************************************************************
1373  *           CreateColorSpaceA    (GDI32.@)
1374  */
1375 HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
1376 {
1377   FIXME( "stub\n" );
1378   return 0;
1379 }
1380
1381 /***********************************************************************
1382  *           CreateColorSpaceW    (GDI32.@)
1383  */
1384 HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
1385 {
1386   FIXME( "stub\n" );
1387   return 0;
1388 }
1389
1390 /***********************************************************************
1391  *           DeleteColorSpace     (GDI32.@)
1392  */
1393 BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
1394 {
1395   FIXME( "stub\n" );
1396
1397   return TRUE;
1398 }
1399
1400 /***********************************************************************
1401  *           SetColorSpace     (GDI32.@)
1402  */
1403 HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
1404 {
1405   FIXME( "stub\n" );
1406
1407   return hColorSpace;
1408 }
1409
1410 /***********************************************************************
1411  *           GetBoundsRect    (GDI.194)
1412  */
1413 UINT16 WINAPI GetBoundsRect16(HDC16 hdc, LPRECT16 rect, UINT16 flags)
1414 {
1415     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1416 }
1417
1418 /***********************************************************************
1419  *           GetBoundsRect    (GDI32.@)
1420  */
1421 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1422 {
1423     FIXME("(): stub\n");
1424     return DCB_RESET;   /* bounding rectangle always empty */
1425 }
1426
1427 /***********************************************************************
1428  *           SetBoundsRect    (GDI.193)
1429  */
1430 UINT16 WINAPI SetBoundsRect16(HDC16 hdc, const RECT16* rect, UINT16 flags)
1431 {
1432     if ( (flags & DCB_ACCUMULATE) || (flags & DCB_ENABLE) )
1433         FIXME("(%04x, %p, %04x): stub\n", hdc, rect, flags );
1434
1435     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1436 }
1437
1438 /***********************************************************************
1439  *           SetBoundsRect    (GDI32.@)
1440  */
1441 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1442 {
1443     FIXME("(): stub\n");
1444     return DCB_DISABLE;   /* bounding rectangle always empty */
1445 }
1446
1447
1448 /***********************************************************************
1449  *              GetRelAbs               (GDI32.@)
1450  */
1451 INT WINAPI GetRelAbs( HDC hdc, DWORD dwIgnore )
1452 {
1453     INT ret = 0;
1454     DC *dc = DC_GetDCPtr( hdc );
1455     if (dc) ret = dc->relAbsMode;
1456     GDI_ReleaseObj( hdc );
1457     return ret;
1458 }
1459
1460 /***********************************************************************
1461  *           Death    (GDI.121)
1462  *
1463  * Disables GDI, switches back to text mode.
1464  * We don't have to do anything here,
1465  * just let console support handle everything
1466  */
1467 void WINAPI Death16(HDC16 hDC)
1468 {
1469     MESSAGE("Death(%04x) called. Application enters text mode...\n", hDC);
1470 }
1471
1472 /***********************************************************************
1473  *           Resurrection    (GDI.122)
1474  *
1475  * Restores GDI functionality
1476  */
1477 void WINAPI Resurrection16(HDC16 hDC,
1478                            WORD w1, WORD w2, WORD w3, WORD w4, WORD w5, WORD w6)
1479 {
1480     MESSAGE("Resurrection(%04x, %04x, %04x, %04x, %04x, %04x, %04x) called. Application left text mode.\n", hDC, w1, w2, w3, w4, w5, w6);
1481 }
1482
1483 /***********************************************************************
1484  *           GetLayout    (GDI32.@)
1485  *
1486  * Gets left->right or right->left text layout flags of a dc.
1487  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1488  *
1489  */
1490 DWORD WINAPI GetLayout(HDC hdc)
1491 {
1492     FIXME("(%08x): stub\n", hdc);
1493     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1494     return 0;
1495 }
1496
1497 /***********************************************************************
1498  *           SetLayout    (GDI32.@)
1499  *
1500  * Sets left->right or right->left text layout flags of a dc.
1501  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1502  *
1503  */
1504 DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
1505 {
1506     FIXME("(%08x,%08lx): stub\n", hdc, layout);
1507     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1508     return 0;
1509 }