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