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 <stdarg.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "wingdi.h"
  29 #include "winreg.h"
  30 #include "winternl.h"
  31 #include "winerror.h"
  32 #include "wownt32.h"
  33 #include "wine/winuser16.h"
  34 #include "gdi.h"
  35 #include "gdi_private.h"
  36 #include "wine/unicode.h"
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(dc);
  40
  41 static BOOL DC_DeleteObject( HGDIOBJ handle, void *obj );
  42
  43 static const struct gdi_obj_funcs dc_funcs =
  44 {
  45     NULL,             /* pSelectObject */
  46     NULL,             /* pGetObject16 */
  47     NULL,             /* pGetObjectA */
  48     NULL,             /* pGetObjectW */
  49     NULL,             /* pUnrealizeObject */
  50     DC_DeleteObject   /* pDeleteObject */
  51 };
  52
  53 /***********************************************************************
  54  *           DC_AllocDC
  55  */
  56 DC *DC_AllocDC( const DC_FUNCTIONS *funcs, WORD magic )
  57 {
  58     HDC hdc;
  59     DC *dc;
  60
  61     if (!(dc = GDI_AllocObject( sizeof(*dc), magic, (HGDIOBJ*)&hdc, &dc_funcs ))) return NULL;
  62
  63     dc->hSelf               = hdc;
  64     dc->funcs               = funcs;
  65     dc->physDev             = NULL;
  66     dc->saveLevel           = 0;
  67     dc->dwHookData          = 0;
  68     dc->hookProc            = NULL;
  69     dc->hookThunk           = NULL;
  70     dc->wndOrgX             = 0;
  71     dc->wndOrgY             = 0;
  72     dc->wndExtX             = 1;
  73     dc->wndExtY             = 1;
  74     dc->vportOrgX           = 0;
  75     dc->vportOrgY           = 0;
  76     dc->vportExtX           = 1;
  77     dc->vportExtY           = 1;
  78     dc->flags               = 0;
  79     dc->hClipRgn            = 0;
  80     dc->hVisRgn             = 0;
  81     dc->hGCClipRgn          = 0;
  82     dc->hPen                = GetStockObject( BLACK_PEN );
  83     dc->hBrush              = GetStockObject( WHITE_BRUSH );
  84     dc->hFont               = GetStockObject( SYSTEM_FONT );
  85     dc->hBitmap             = 0;
  86     dc->hDevice             = 0;
  87     dc->hPalette            = GetStockObject( DEFAULT_PALETTE );
  88     dc->gdiFont             = 0;
  89     dc->ROPmode             = R2_COPYPEN;
  90     dc->polyFillMode        = ALTERNATE;
  91     dc->stretchBltMode      = BLACKONWHITE;
  92     dc->relAbsMode          = ABSOLUTE;
  93     dc->backgroundMode      = OPAQUE;
  94     dc->backgroundColor     = RGB( 255, 255, 255 );
  95     dc->dcBrushColor        = RGB( 255, 255, 255 );
  96     dc->dcPenColor          = RGB( 0, 0, 0 );
  97     dc->textColor           = RGB( 0, 0, 0 );
  98     dc->brushOrgX           = 0;
  99     dc->brushOrgY           = 0;
 100     dc->textAlign           = TA_LEFT | TA_TOP | TA_NOUPDATECP;
 101     dc->charExtra           = 0;
 102     dc->breakTotalExtra     = 0;
 103     dc->breakCount          = 0;
 104     dc->breakExtra          = 0;
 105     dc->breakRem            = 0;
 106     dc->totalExtent.left    = 0;
 107     dc->totalExtent.top     = 0;
 108     dc->totalExtent.right   = 0;
 109     dc->totalExtent.bottom  = 0;
 110     dc->MapMode             = MM_TEXT;
 111     dc->GraphicsMode        = GM_COMPATIBLE;
 112     dc->pAbortProc          = NULL;
 113     dc->CursPosX            = 0;
 114     dc->CursPosY            = 0;
 115     dc->ArcDirection        = AD_COUNTERCLOCKWISE;
 116     dc->xformWorld2Wnd.eM11 = 1.0f;
 117     dc->xformWorld2Wnd.eM12 = 0.0f;
 118     dc->xformWorld2Wnd.eM21 = 0.0f;
 119     dc->xformWorld2Wnd.eM22 = 1.0f;
 120     dc->xformWorld2Wnd.eDx  = 0.0f;
 121     dc->xformWorld2Wnd.eDy  = 0.0f;
 122     dc->xformWorld2Vport    = dc->xformWorld2Wnd;
 123     dc->xformVport2World    = dc->xformWorld2Wnd;
 124     dc->vport2WorldValid    = TRUE;
 125     PATH_InitGdiPath(&dc->path);
 126     return dc;
 127 }
 128
 129
 130
 131 /***********************************************************************
 132  *           DC_GetDCPtr
 133  */
 134 DC *DC_GetDCPtr( HDC hdc )
 135 {
 136     GDIOBJHDR *ptr = GDI_GetObjPtr( hdc, MAGIC_DONTCARE );
 137     if (!ptr) return NULL;
 138     if ((GDIMAGIC(ptr->wMagic) == DC_MAGIC) ||
 139         (GDIMAGIC(ptr->wMagic) == MEMORY_DC_MAGIC) ||
 140         (GDIMAGIC(ptr->wMagic) == METAFILE_DC_MAGIC) ||
 141         (GDIMAGIC(ptr->wMagic) == ENHMETAFILE_DC_MAGIC))
 142         return (DC *)ptr;
 143     GDI_ReleaseObj( hdc );
 144     SetLastError( ERROR_INVALID_HANDLE );
 145     return NULL;
 146 }
 147
 148 /***********************************************************************
 149  *           DC_GetDCUpdate
 150  *
 151  * Retrieve a DC ptr while making sure the visRgn is updated.
 152  * This function may call up to USER so the GDI lock should _not_
 153  * be held when calling it.
 154  */
 155 DC *DC_GetDCUpdate( HDC hdc )
 156 {
 157     DC *dc = DC_GetDCPtr( hdc );
 158     if (!dc) return NULL;
 159     while (dc->flags & DC_DIRTY)
 160     {
 161         DCHOOKPROC proc = dc->hookThunk;
 162         dc->flags &= ~DC_DIRTY;
 163         if (proc)
 164         {
 165             DWORD data = dc->dwHookData;
 166             GDI_ReleaseObj( hdc );
 167             proc( HDC_16(hdc), DCHC_INVALIDVISRGN, data, 0 );
 168             if (!(dc = DC_GetDCPtr( hdc ))) break;
 169             /* otherwise restart the loop in case it became dirty again in the meantime */
 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     if (dc->funcs->pRealizeDefaultPalette) dc->funcs->pRealizeDefaultPalette( dc->physDev );
 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, oldworld2vport;
 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     oldworld2vport = dc->xformWorld2Vport;
 260     /* Combine with the world transformation */
 261     CombineTransform( &dc->xformWorld2Vport, &dc->xformWorld2Wnd,
 262         &xformWnd2Vport );
 263
 264     /* Create inverse of world-to-viewport transformation */
 265     dc->vport2WorldValid = DC_InvertXform( &dc->xformWorld2Vport,
 266         &dc->xformVport2World );
 267
 268     /* Reselect the font back into the dc so that the font size
 269        gets updated. */
 270     if(memcmp(&oldworld2vport, &dc->xformWorld2Vport, sizeof(oldworld2vport)))
 271         SelectObject(dc->hSelf, GetCurrentObject(dc->hSelf, OBJ_FONT));
 272 }
 273
 274
 275 /***********************************************************************
 276  *           GetDCState   (Not a Windows API)
 277  */
 278 HDC WINAPI GetDCState( HDC hdc )
 279 {
 280     DC * newdc, * dc;
 281     HGDIOBJ handle;
 282
 283     if (!(dc = DC_GetDCPtr( hdc ))) return 0;
 284     if (!(newdc = GDI_AllocObject( sizeof(DC), GDIMAGIC(dc->header.wMagic), &handle, &dc_funcs )))
 285     {
 286       GDI_ReleaseObj( hdc );
 287       return 0;
 288     }
 289     TRACE("(%p): returning %p\n", hdc, handle );
 290
 291     newdc->flags            = dc->flags | DC_SAVED;
 292     newdc->hPen             = dc->hPen;
 293     newdc->hBrush           = dc->hBrush;
 294     newdc->hFont            = dc->hFont;
 295     newdc->hBitmap          = dc->hBitmap;
 296     newdc->hDevice          = dc->hDevice;
 297     newdc->hPalette         = dc->hPalette;
 298     newdc->totalExtent      = dc->totalExtent;
 299     newdc->ROPmode          = dc->ROPmode;
 300     newdc->polyFillMode     = dc->polyFillMode;
 301     newdc->stretchBltMode   = dc->stretchBltMode;
 302     newdc->relAbsMode       = dc->relAbsMode;
 303     newdc->backgroundMode   = dc->backgroundMode;
 304     newdc->backgroundColor  = dc->backgroundColor;
 305     newdc->textColor        = dc->textColor;
 306     newdc->dcBrushColor     = dc->dcBrushColor;
 307     newdc->dcPenColor       = dc->dcPenColor;
 308     newdc->brushOrgX        = dc->brushOrgX;
 309     newdc->brushOrgY        = dc->brushOrgY;
 310     newdc->textAlign        = dc->textAlign;
 311     newdc->charExtra        = dc->charExtra;
 312     newdc->breakTotalExtra  = dc->breakTotalExtra;
 313     newdc->breakCount       = dc->breakCount;
 314     newdc->breakExtra       = dc->breakExtra;
 315     newdc->breakRem         = dc->breakRem;
 316     newdc->MapMode          = dc->MapMode;
 317     newdc->GraphicsMode     = dc->GraphicsMode;
 318     newdc->CursPosX         = dc->CursPosX;
 319     newdc->CursPosY         = dc->CursPosY;
 320     newdc->ArcDirection     = dc->ArcDirection;
 321     newdc->xformWorld2Wnd   = dc->xformWorld2Wnd;
 322     newdc->xformWorld2Vport = dc->xformWorld2Vport;
 323     newdc->xformVport2World = dc->xformVport2World;
 324     newdc->vport2WorldValid = dc->vport2WorldValid;
 325     newdc->wndOrgX          = dc->wndOrgX;
 326     newdc->wndOrgY          = dc->wndOrgY;
 327     newdc->wndExtX          = dc->wndExtX;
 328     newdc->wndExtY          = dc->wndExtY;
 329     newdc->vportOrgX        = dc->vportOrgX;
 330     newdc->vportOrgY        = dc->vportOrgY;
 331     newdc->vportExtX        = dc->vportExtX;
 332     newdc->vportExtY        = dc->vportExtY;
 333
 334     newdc->hSelf = (HDC)handle;
 335     newdc->saveLevel = 0;
 336
 337     PATH_InitGdiPath( &newdc->path );
 338
 339     newdc->pAbortProc = NULL;
 340     newdc->hookThunk  = NULL;
 341     newdc->hookProc   = 0;
 342
 343     /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
 344
 345     newdc->hGCClipRgn = newdc->hVisRgn = 0;
 346     if (dc->hClipRgn)
 347     {
 348         newdc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 349         CombineRgn( newdc->hClipRgn, dc->hClipRgn, 0, RGN_COPY );
 350     }
 351     else
 352         newdc->hClipRgn = 0;
 353
 354     if(dc->gdiFont) {
 355         newdc->gdiFont = dc->gdiFont;
 356     } else
 357         newdc->gdiFont = 0;
 358
 359     GDI_ReleaseObj( handle );
 360     GDI_ReleaseObj( hdc );
 361     return handle;
 362 }
 363
 364
 365 /***********************************************************************
 366  *           SetDCState   (Not a Windows API)
 367  */
 368 void WINAPI SetDCState( HDC hdc, HDC hdcs )
 369 {
 370     DC *dc, *dcs;
 371
 372     if (!(dc = DC_GetDCUpdate( hdc ))) return;
 373     if (!(dcs = DC_GetDCPtr( hdcs )))
 374     {
 375       GDI_ReleaseObj( hdc );
 376       return;
 377     }
 378     if (!dcs->flags & DC_SAVED)
 379     {
 380       GDI_ReleaseObj( hdc );
 381       GDI_ReleaseObj( hdcs );
 382       return;
 383     }
 384     TRACE("%p %p\n", hdc, hdcs );
 385
 386     dc->flags            = dcs->flags & ~(DC_SAVED | DC_DIRTY);
 387     dc->hDevice          = dcs->hDevice;
 388     dc->totalExtent      = dcs->totalExtent;
 389     dc->ROPmode          = dcs->ROPmode;
 390     dc->polyFillMode     = dcs->polyFillMode;
 391     dc->stretchBltMode   = dcs->stretchBltMode;
 392     dc->relAbsMode       = dcs->relAbsMode;
 393     dc->backgroundMode   = dcs->backgroundMode;
 394     dc->backgroundColor  = dcs->backgroundColor;
 395     dc->textColor        = dcs->textColor;
 396     dc->dcBrushColor     = dcs->dcBrushColor;
 397     dc->dcPenColor       = dcs->dcPenColor;
 398     dc->brushOrgX        = dcs->brushOrgX;
 399     dc->brushOrgY        = dcs->brushOrgY;
 400     dc->textAlign        = dcs->textAlign;
 401     dc->charExtra        = dcs->charExtra;
 402     dc->breakTotalExtra  = dcs->breakTotalExtra;
 403     dc->breakCount       = dcs->breakCount;
 404     dc->breakExtra       = dcs->breakExtra;
 405     dc->breakRem         = dcs->breakRem;
 406     dc->MapMode          = dcs->MapMode;
 407     dc->GraphicsMode     = dcs->GraphicsMode;
 408     dc->CursPosX         = dcs->CursPosX;
 409     dc->CursPosY         = dcs->CursPosY;
 410     dc->ArcDirection     = dcs->ArcDirection;
 411     dc->xformWorld2Wnd   = dcs->xformWorld2Wnd;
 412     dc->xformWorld2Vport = dcs->xformWorld2Vport;
 413     dc->xformVport2World = dcs->xformVport2World;
 414     dc->vport2WorldValid = dcs->vport2WorldValid;
 415
 416     dc->wndOrgX          = dcs->wndOrgX;
 417     dc->wndOrgY          = dcs->wndOrgY;
 418     dc->wndExtX          = dcs->wndExtX;
 419     dc->wndExtY          = dcs->wndExtY;
 420     dc->vportOrgX        = dcs->vportOrgX;
 421     dc->vportOrgY        = dcs->vportOrgY;
 422     dc->vportExtX        = dcs->vportExtX;
 423     dc->vportExtY        = dcs->vportExtY;
 424
 425     if (dcs->hClipRgn)
 426     {
 427         if (!dc->hClipRgn) dc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 428         CombineRgn( dc->hClipRgn, dcs->hClipRgn, 0, RGN_COPY );
 429     }
 430     else
 431     {
 432         if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 433         dc->hClipRgn = 0;
 434     }
 435     CLIPPING_UpdateGCRegion( dc );
 436
 437     SelectObject( hdc, dcs->hBitmap );
 438     SelectObject( hdc, dcs->hBrush );
 439     SelectObject( hdc, dcs->hFont );
 440     SelectObject( hdc, dcs->hPen );
 441     SetBkColor( hdc, dcs->backgroundColor);
 442     SetTextColor( hdc, dcs->textColor);
 443     GDISelectPalette( hdc, dcs->hPalette, FALSE );
 444     GDI_ReleaseObj( hdcs );
 445     GDI_ReleaseObj( hdc );
 446 }
 447
 448
 449 /***********************************************************************
 450  *           GetDCState   (GDI.179)
 451  */
 452 HDC16 WINAPI GetDCState16( HDC16 hdc )
 453 {
 454     return HDC_16( GetDCState( HDC_32(hdc) ));
 455 }
 456
 457
 458 /***********************************************************************
 459  *           SetDCState   (GDI.180)
 460  */
 461 void WINAPI SetDCState16( HDC16 hdc, HDC16 hdcs )
 462 {
 463     SetDCState( HDC_32(hdc), HDC_32(hdcs) );
 464 }
 465
 466
 467 /***********************************************************************
 468  *           SaveDC    (GDI32.@)
 469  */
 470 INT WINAPI SaveDC( HDC hdc )
 471 {
 472     HDC hdcs;
 473     DC * dc, * dcs;
 474     INT ret;
 475
 476     dc = DC_GetDCPtr( hdc );
 477     if (!dc) return 0;
 478
 479     if(dc->funcs->pSaveDC)
 480     {
 481         ret = dc->funcs->pSaveDC( dc->physDev );
 482         GDI_ReleaseObj( hdc );
 483         return ret;
 484     }
 485
 486     if (!(hdcs = GetDCState( hdc )))
 487     {
 488       GDI_ReleaseObj( hdc );
 489       return 0;
 490     }
 491     dcs = DC_GetDCPtr( hdcs );
 492
 493     /* Copy path. The reason why path saving / restoring is in SaveDC/
 494      * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
 495      * functions are only in Win16 (which doesn't have paths) and that
 496      * SetDCState doesn't allow us to signal an error (which can happen
 497      * when copying paths).
 498      */
 499     if (!PATH_AssignGdiPath( &dcs->path, &dc->path ))
 500     {
 501         GDI_ReleaseObj( hdc );
 502         GDI_ReleaseObj( hdcs );
 503         DeleteDC( hdcs );
 504         return 0;
 505     }
 506
 507     dcs->header.hNext = dc->header.hNext;
 508     dc->header.hNext = HDC_16(hdcs);
 509     TRACE("(%p): returning %d\n", hdc, dc->saveLevel+1 );
 510     ret = ++dc->saveLevel;
 511     GDI_ReleaseObj( hdcs );
 512     GDI_ReleaseObj( hdc );
 513     return ret;
 514 }
 515
 516
 517 /***********************************************************************
 518  *           RestoreDC    (GDI32.@)
 519  */
 520 BOOL WINAPI RestoreDC( HDC hdc, INT level )
 521 {
 522     DC * dc, * dcs;
 523     BOOL success;
 524
 525     TRACE("%p %d\n", hdc, level );
 526     dc = DC_GetDCUpdate( hdc );
 527     if(!dc) return FALSE;
 528     if(dc->funcs->pRestoreDC)
 529     {
 530         success = dc->funcs->pRestoreDC( dc->physDev, level );
 531         GDI_ReleaseObj( hdc );
 532         return success;
 533     }
 534
 535     if (level == -1) level = dc->saveLevel;
 536     if ((level < 1)
 537             /* This pair of checks disagrees with MSDN "Platform SDK:
 538                Windows GDI" July 2000 which says all negative values
 539                for level will be interpreted as an instance relative
 540                to the current state.  Restricting it to just -1 does
 541                not satisfy this */
 542         || (level > dc->saveLevel))
 543     {
 544         GDI_ReleaseObj( hdc );
 545         return FALSE;
 546     }
 547
 548     success=TRUE;
 549     while (dc->saveLevel >= level)
 550     {
 551         HDC hdcs = HDC_32(dc->header.hNext);
 552         if (!(dcs = DC_GetDCPtr( hdcs )))
 553         {
 554           GDI_ReleaseObj( hdc );
 555           return FALSE;
 556         }
 557         dc->header.hNext = dcs->header.hNext;
 558         if (--dc->saveLevel < level)
 559         {
 560             SetDCState( hdc, hdcs );
 561             if (!PATH_AssignGdiPath( &dc->path, &dcs->path ))
 562                 /* FIXME: This might not be quite right, since we're
 563                  * returning FALSE but still destroying the saved DC state */
 564                 success=FALSE;
 565         }
 566         GDI_ReleaseObj( hdcs );
 567         GDI_ReleaseObj( hdc );
 568         DeleteDC( hdcs );
 569         if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
 570     }
 571     GDI_ReleaseObj( hdc );
 572     return success;
 573 }
 574
 575
 576 /***********************************************************************
 577  *           CreateDCW    (GDI32.@)
 578  */
 579 HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 580                       const DEVMODEW *initData )
 581 {
 582     HDC hdc;
 583     DC * dc;
 584     const DC_FUNCTIONS *funcs;
 585     WCHAR buf[300];
 586
 587     GDI_CheckNotLock();
 588
 589     if (!device || !DRIVER_GetDriverName( device, buf, 300 ))
 590     {
 591         if (!driver) return 0;
 592         strcpyW(buf, driver);
 593     }
 594
 595     if (!(funcs = DRIVER_load_driver( buf )))
 596     {
 597         ERR( "no driver found for %s\n", debugstr_w(buf) );
 598         return 0;
 599     }
 600     if (!(dc = DC_AllocDC( funcs, DC_MAGIC )))
 601     {
 602         DRIVER_release_driver( funcs );
 603         return 0;
 604     }
 605
 606     dc->hBitmap = GetStockObject( DEFAULT_BITMAP );
 607
 608     TRACE("(driver=%s, device=%s, output=%s): returning %p\n",
 609           debugstr_w(driver), debugstr_w(device), debugstr_w(output), dc->hSelf );
 610
 611     if (dc->funcs->pCreateDC &&
 612         !dc->funcs->pCreateDC( dc, &dc->physDev, buf, device, output, initData ))
 613     {
 614         WARN("creation aborted by device\n" );
 615         GDI_FreeObject( dc->hSelf, dc );
 616         DRIVER_release_driver( funcs );
 617         return 0;
 618     }
 619
 620     dc->totalExtent.left   = 0;
 621     dc->totalExtent.top    = 0;
 622     dc->totalExtent.right  = GetDeviceCaps( dc->hSelf, HORZRES );
 623     dc->totalExtent.bottom = GetDeviceCaps( dc->hSelf, VERTRES );
 624     dc->hVisRgn = CreateRectRgnIndirect( &dc->totalExtent );
 625
 626     DC_InitDC( dc );
 627     hdc = dc->hSelf;
 628     GDI_ReleaseObj( hdc );
 629     return hdc;
 630 }
 631
 632
 633 /***********************************************************************
 634  *           CreateDCA    (GDI32.@)
 635  */
 636 HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
 637                       const DEVMODEA *initData )
 638 {
 639     UNICODE_STRING driverW, deviceW, outputW;
 640     DEVMODEW *initDataW;
 641     HDC ret;
 642
 643     if (driver) RtlCreateUnicodeStringFromAsciiz(&driverW, driver);
 644     else driverW.Buffer = NULL;
 645
 646     if (device) RtlCreateUnicodeStringFromAsciiz(&deviceW, device);
 647     else deviceW.Buffer = NULL;
 648
 649     if (output) RtlCreateUnicodeStringFromAsciiz(&outputW, output);
 650     else outputW.Buffer = NULL;
 651
 652     if (initData) initDataW = GdiConvertToDevmodeW(initData);
 653     else initDataW = NULL;
 654
 655     ret = CreateDCW( driverW.Buffer, deviceW.Buffer, outputW.Buffer, initDataW );
 656
 657     RtlFreeUnicodeString(&driverW);
 658     RtlFreeUnicodeString(&deviceW);
 659     RtlFreeUnicodeString(&outputW);
 660     if (initDataW) HeapFree(GetProcessHeap(), 0, initDataW);
 661     return ret;
 662 }
 663
 664
 665 /***********************************************************************
 666  *           CreateICA    (GDI32.@)
 667  */
 668 HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
 669                           const DEVMODEA* initData )
 670 {
 671       /* Nothing special yet for ICs */
 672     return CreateDCA( driver, device, output, initData );
 673 }
 674
 675
 676 /***********************************************************************
 677  *           CreateICW    (GDI32.@)
 678  */
 679 HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 680                           const DEVMODEW* initData )
 681 {
 682       /* Nothing special yet for ICs */
 683     return CreateDCW( driver, device, output, initData );
 684 }
 685
 686
 687 /***********************************************************************
 688  *           CreateCompatibleDC   (GDI32.@)
 689  */
 690 HDC WINAPI CreateCompatibleDC( HDC hdc )
 691 {
 692     DC *dc, *origDC;
 693     const DC_FUNCTIONS *funcs;
 694     PHYSDEV physDev;
 695
 696     GDI_CheckNotLock();
 697
 698     if ((origDC = GDI_GetObjPtr( hdc, DC_MAGIC )))
 699     {
 700         funcs = origDC->funcs;
 701         physDev = origDC->physDev;
 702         GDI_ReleaseObj( hdc ); /* can't hold the lock while loading the driver */
 703         funcs = DRIVER_get_driver( funcs );
 704     }
 705     else
 706     {
 707         static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 708         funcs = DRIVER_load_driver( displayW );
 709         physDev = NULL;
 710     }
 711
 712     if (!funcs) return 0;
 713
 714     if (!(dc = DC_AllocDC( funcs, MEMORY_DC_MAGIC )))
 715     {
 716         DRIVER_release_driver( funcs );
 717         return 0;
 718     }
 719
 720     TRACE("(%p): returning %p\n", hdc, dc->hSelf );
 721
 722     dc->hBitmap = GetStockObject( DEFAULT_BITMAP );
 723
 724     /* Copy the driver-specific physical device info into
 725      * the new DC. The driver may use this read-only info
 726      * while creating the compatible DC below. */
 727     dc->physDev = physDev;
 728
 729     if (dc->funcs->pCreateDC &&
 730         !dc->funcs->pCreateDC( dc, &dc->physDev, NULL, NULL, NULL, NULL ))
 731     {
 732         WARN("creation aborted by device\n");
 733         GDI_FreeObject( dc->hSelf, dc );
 734         DRIVER_release_driver( funcs );
 735         return 0;
 736     }
 737
 738     dc->totalExtent.left   = 0;
 739     dc->totalExtent.top    = 0;
 740     dc->totalExtent.right  = 1;  /* default bitmap is 1x1 */
 741     dc->totalExtent.bottom = 1;
 742     dc->hVisRgn = CreateRectRgnIndirect( &dc->totalExtent );
 743
 744     DC_InitDC( dc );
 745     GDI_ReleaseObj( dc->hSelf );
 746     return dc->hSelf;
 747 }
 748
 749
 750 /***********************************************************************
 751  *           DeleteDC    (GDI32.@)
 752  */
 753 BOOL WINAPI DeleteDC( HDC hdc )
 754 {
 755     const DC_FUNCTIONS *funcs = NULL;
 756     DC * dc;
 757
 758     TRACE("%p\n", hdc );
 759
 760     GDI_CheckNotLock();
 761
 762     if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
 763
 764     /* Call hook procedure to check whether is it OK to delete this DC */
 765     if (dc->hookThunk)
 766     {
 767         DCHOOKPROC proc = dc->hookThunk;
 768         DWORD data = dc->dwHookData;
 769         GDI_ReleaseObj( hdc );
 770         if (!proc( HDC_16(hdc), DCHC_DELETEDC, data, 0 )) return FALSE;
 771         if (!(dc = DC_GetDCPtr( hdc ))) return TRUE;  /* deleted by the hook */
 772     }
 773
 774     while (dc->saveLevel)
 775     {
 776         DC * dcs;
 777         HDC hdcs = HDC_32(dc->header.hNext);
 778         if (!(dcs = DC_GetDCPtr( hdcs ))) break;
 779         dc->header.hNext = dcs->header.hNext;
 780         dc->saveLevel--;
 781         if (dcs->hClipRgn) DeleteObject( dcs->hClipRgn );
 782         if (dcs->hVisRgn) DeleteObject( dcs->hVisRgn );
 783         if (dcs->hGCClipRgn) DeleteObject( dcs->hGCClipRgn );
 784         PATH_DestroyGdiPath(&dcs->path);
 785         GDI_FreeObject( hdcs, dcs );
 786     }
 787
 788     if (!(dc->flags & DC_SAVED))
 789     {
 790         SelectObject( hdc, GetStockObject(BLACK_PEN) );
 791         SelectObject( hdc, GetStockObject(WHITE_BRUSH) );
 792         SelectObject( hdc, GetStockObject(SYSTEM_FONT) );
 793         SelectObject( hdc, GetStockObject(DEFAULT_BITMAP) );
 794         funcs = dc->funcs;
 795         if (dc->funcs->pDeleteDC) dc->funcs->pDeleteDC(dc->physDev);
 796         dc->physDev = NULL;
 797     }
 798
 799     if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 800     if (dc->hVisRgn) DeleteObject( dc->hVisRgn );
 801     if (dc->hGCClipRgn) DeleteObject( dc->hGCClipRgn );
 802     PATH_DestroyGdiPath(&dc->path);
 803
 804     GDI_FreeObject( hdc, dc );
 805     if (funcs) DRIVER_release_driver( funcs );  /* do that after releasing the GDI lock */
 806     return TRUE;
 807 }
 808
 809
 810 /***********************************************************************
 811  *           ResetDCW    (GDI32.@)
 812  */
 813 HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *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  *           ResetDCA    (GDI32.@)
 829  */
 830 HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
 831 {
 832     DEVMODEW *devmodeW;
 833     HDC ret;
 834
 835     if (devmode) devmodeW = GdiConvertToDevmodeW(devmode);
 836     else devmodeW = NULL;
 837
 838     ret = ResetDCW(hdc, devmodeW);
 839
 840     if (devmodeW) HeapFree(GetProcessHeap(), 0, devmodeW);
 841     return ret;
 842 }
 843
 844
 845 /***********************************************************************
 846  *           GetDeviceCaps    (GDI32.@)
 847  */
 848 INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
 849 {
 850     DC *dc;
 851     INT ret = 0;
 852
 853     if ((dc = DC_GetDCPtr( hdc )))
 854     {
 855         if (dc->funcs->pGetDeviceCaps) ret = dc->funcs->pGetDeviceCaps( dc->physDev, cap );
 856         GDI_ReleaseObj( hdc );
 857     }
 858     return ret;
 859 }
 860
 861
 862 /***********************************************************************
 863  *           SetBkColor    (GDI32.@)
 864  */
 865 COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
 866 {
 867     COLORREF oldColor;
 868     DC * dc = DC_GetDCPtr( hdc );
 869
 870     TRACE("hdc=%p color=0x%08lx\n", hdc, color);
 871
 872     if (!dc) return CLR_INVALID;
 873     oldColor = dc->backgroundColor;
 874     if (dc->funcs->pSetBkColor)
 875     {
 876         color = dc->funcs->pSetBkColor(dc->physDev, color);
 877         if (color == CLR_INVALID)  /* don't change it */
 878         {
 879             color = oldColor;
 880             oldColor = CLR_INVALID;
 881         }
 882     }
 883     dc->backgroundColor = color;
 884     GDI_ReleaseObj( hdc );
 885     return oldColor;
 886 }
 887
 888
 889 /***********************************************************************
 890  *           SetTextColor    (GDI32.@)
 891  */
 892 COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
 893 {
 894     COLORREF oldColor;
 895     DC * dc = DC_GetDCPtr( hdc );
 896
 897     TRACE(" hdc=%p color=0x%08lx\n", hdc, color);
 898
 899     if (!dc) return CLR_INVALID;
 900     oldColor = dc->textColor;
 901     if (dc->funcs->pSetTextColor)
 902     {
 903         color = dc->funcs->pSetTextColor(dc->physDev, color);
 904         if (color == CLR_INVALID)  /* don't change it */
 905         {
 906             color = oldColor;
 907             oldColor = CLR_INVALID;
 908         }
 909     }
 910     dc->textColor = color;
 911     GDI_ReleaseObj( hdc );
 912     return oldColor;
 913 }
 914
 915
 916 /***********************************************************************
 917  *           SetTextAlign    (GDI32.@)
 918  */
 919 UINT WINAPI SetTextAlign( HDC hdc, UINT align )
 920 {
 921     UINT prevAlign;
 922     DC *dc = DC_GetDCPtr( hdc );
 923
 924     TRACE("hdc=%p align=%d\n", hdc, align);
 925
 926     if (!dc) return 0x0;
 927     if (dc->funcs->pSetTextAlign)
 928         prevAlign = dc->funcs->pSetTextAlign(dc->physDev, align);
 929     else {
 930         prevAlign = dc->textAlign;
 931         dc->textAlign = align;
 932     }
 933     GDI_ReleaseObj( hdc );
 934     return prevAlign;
 935 }
 936
 937 /***********************************************************************
 938  *           GetDCOrgEx  (GDI32.@)
 939  */
 940 BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
 941 {
 942     DC * dc;
 943
 944     if (!lpp) return FALSE;
 945     if (!(dc = DC_GetDCPtr( hDC ))) return FALSE;
 946
 947     lpp->x = lpp->y = 0;
 948     if (dc->funcs->pGetDCOrgEx) dc->funcs->pGetDCOrgEx( dc->physDev, lpp );
 949     GDI_ReleaseObj( hDC );
 950     return TRUE;
 951 }
 952
 953
 954 /***********************************************************************
 955  *           SetDCOrg   (GDI.117)
 956  */
 957 DWORD WINAPI SetDCOrg16( HDC16 hdc16, INT16 x, INT16 y )
 958 {
 959     DWORD prevOrg = 0;
 960     HDC hdc = HDC_32( hdc16 );
 961     DC *dc = DC_GetDCPtr( hdc );
 962     if (!dc) return 0;
 963     if (dc->funcs->pSetDCOrg) prevOrg = dc->funcs->pSetDCOrg( dc->physDev, x, y );
 964     GDI_ReleaseObj( hdc );
 965     return prevOrg;
 966 }
 967
 968
 969 /***********************************************************************
 970  *           SetGraphicsMode    (GDI32.@)
 971  */
 972 INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
 973 {
 974     INT ret = 0;
 975     DC *dc = DC_GetDCPtr( hdc );
 976
 977     /* One would think that setting the graphics mode to GM_COMPATIBLE
 978      * would also reset the world transformation matrix to the unity
 979      * matrix. However, in Windows, this is not the case. This doesn't
 980      * make a lot of sense to me, but that's the way it is.
 981      */
 982     if (!dc) return 0;
 983     if ((mode > 0) && (mode <= GM_LAST))
 984     {
 985         ret = dc->GraphicsMode;
 986         dc->GraphicsMode = mode;
 987     }
 988     GDI_ReleaseObj( hdc );
 989     return ret;
 990 }
 991
 992
 993 /***********************************************************************
 994  *           SetArcDirection    (GDI32.@)
 995  */
 996 INT WINAPI SetArcDirection( HDC hdc, INT nDirection )
 997 {
 998     DC * dc;
 999     INT nOldDirection = 0;
1000
1001     if (nDirection!=AD_COUNTERCLOCKWISE && nDirection!=AD_CLOCKWISE)
1002     {
1003         SetLastError(ERROR_INVALID_PARAMETER);
1004         return 0;
1005     }
1006
1007     if ((dc = DC_GetDCPtr( hdc )))
1008     {
1009         if (dc->funcs->pSetArcDirection)
1010         {
1011             dc->funcs->pSetArcDirection(dc->physDev, nDirection);
1012         }
1013         nOldDirection = dc->ArcDirection;
1014         dc->ArcDirection = nDirection;
1015         GDI_ReleaseObj( hdc );
1016     }
1017     return nOldDirection;
1018 }
1019
1020
1021 /***********************************************************************
1022  *           GetWorldTransform    (GDI32.@)
1023  */
1024 BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
1025 {
1026     DC * dc;
1027     if (!xform) return FALSE;
1028     if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
1029     *xform = dc->xformWorld2Wnd;
1030     GDI_ReleaseObj( hdc );
1031     return TRUE;
1032 }
1033
1034
1035 /***********************************************************************
1036  *           GetTransform    (GDI32.@)
1037  */
1038 BOOL WINAPI GetTransform( HDC hdc, DWORD unknown, LPXFORM xform )
1039 {
1040     if (unknown == 0x0203) return GetWorldTransform( hdc, xform );
1041     FIXME("stub: don't know what to do for code %lx\n", unknown );
1042     return FALSE;
1043 }
1044
1045
1046 /***********************************************************************
1047  *           SetWorldTransform    (GDI32.@)
1048  */
1049 BOOL WINAPI SetWorldTransform( HDC hdc, const XFORM *xform )
1050 {
1051     BOOL ret = FALSE;
1052     DC *dc = DC_GetDCPtr( hdc );
1053
1054     if (!dc) return FALSE;
1055     if (!xform) goto done;
1056
1057     /* Check that graphics mode is GM_ADVANCED */
1058     if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1059
1060     if (dc->funcs->pSetWorldTransform)
1061     {
1062         ret = dc->funcs->pSetWorldTransform(dc->physDev, xform);
1063         if (!ret) goto done;
1064     }
1065
1066     dc->xformWorld2Wnd = *xform;
1067     DC_UpdateXforms( dc );
1068     ret = TRUE;
1069  done:
1070     GDI_ReleaseObj( hdc );
1071     return ret;
1072 }
1073
1074
1075 /****************************************************************************
1076  * ModifyWorldTransform [GDI32.@]
1077  * Modifies the world transformation for a device context.
1078  *
1079  * PARAMS
1080  *    hdc   [I] Handle to device context
1081  *    xform [I] XFORM structure that will be used to modify the world
1082  *              transformation
1083  *    iMode [I] Specifies in what way to modify the world transformation
1084  *              Possible values:
1085  *              MWT_IDENTITY
1086  *                 Resets the world transformation to the identity matrix.
1087  *                 The parameter xform is ignored.
1088  *              MWT_LEFTMULTIPLY
1089  *                 Multiplies xform into the world transformation matrix from
1090  *                 the left.
1091  *              MWT_RIGHTMULTIPLY
1092  *                 Multiplies xform into the world transformation matrix from
1093  *                 the right.
1094  *
1095  * RETURNS STD
1096  */
1097 BOOL WINAPI ModifyWorldTransform( HDC hdc, const XFORM *xform,
1098     DWORD iMode )
1099 {
1100     BOOL ret = FALSE;
1101     DC *dc = DC_GetDCPtr( hdc );
1102
1103     /* Check for illegal parameters */
1104     if (!dc) return FALSE;
1105     if (!xform) goto done;
1106
1107     /* Check that graphics mode is GM_ADVANCED */
1108     if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1109
1110     if (dc->funcs->pModifyWorldTransform)
1111     {
1112         ret = dc->funcs->pModifyWorldTransform(dc->physDev, xform, iMode);
1113         if (!ret) goto done;
1114     }
1115
1116     switch (iMode)
1117     {
1118         case MWT_IDENTITY:
1119             dc->xformWorld2Wnd.eM11 = 1.0f;
1120             dc->xformWorld2Wnd.eM12 = 0.0f;
1121             dc->xformWorld2Wnd.eM21 = 0.0f;
1122             dc->xformWorld2Wnd.eM22 = 1.0f;
1123             dc->xformWorld2Wnd.eDx  = 0.0f;
1124             dc->xformWorld2Wnd.eDy  = 0.0f;
1125             break;
1126         case MWT_LEFTMULTIPLY:
1127             CombineTransform( &dc->xformWorld2Wnd, xform,
1128                 &dc->xformWorld2Wnd );
1129             break;
1130         case MWT_RIGHTMULTIPLY:
1131             CombineTransform( &dc->xformWorld2Wnd, &dc->xformWorld2Wnd,
1132                 xform );
1133             break;
1134         default:
1135             goto done;
1136     }
1137
1138     DC_UpdateXforms( dc );
1139     ret = TRUE;
1140  done:
1141     GDI_ReleaseObj( hdc );
1142     return ret;
1143 }
1144
1145
1146 /****************************************************************************
1147  * CombineTransform [GDI32.@]
1148  * Combines two transformation matrices.
1149  *
1150  * PARAMS
1151  *    xformResult [O] Stores the result of combining the two matrices
1152  *    xform1      [I] Specifies the first matrix to apply
1153  *    xform2      [I] Specifies the second matrix to apply
1154  *
1155  * REMARKS
1156  *    The same matrix can be passed in for more than one of the parameters.
1157  *
1158  * RETURNS STD
1159  */
1160 BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1161     const XFORM *xform2 )
1162 {
1163     XFORM xformTemp;
1164
1165     /* Check for illegal parameters */
1166     if (!xformResult || !xform1 || !xform2)
1167         return FALSE;
1168
1169     /* Create the result in a temporary XFORM, since xformResult may be
1170      * equal to xform1 or xform2 */
1171     xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1172                      xform1->eM12 * xform2->eM21;
1173     xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1174                      xform1->eM12 * xform2->eM22;
1175     xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1176                      xform1->eM22 * xform2->eM21;
1177     xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1178                      xform1->eM22 * xform2->eM22;
1179     xformTemp.eDx  = xform1->eDx  * xform2->eM11 +
1180                      xform1->eDy  * xform2->eM21 +
1181                      xform2->eDx;
1182     xformTemp.eDy  = xform1->eDx  * xform2->eM12 +
1183                      xform1->eDy  * xform2->eM22 +
1184                      xform2->eDy;
1185
1186     /* Copy the result to xformResult */
1187     *xformResult = xformTemp;
1188
1189     return TRUE;
1190 }
1191
1192
1193 /***********************************************************************
1194  *           SetDCHook   (GDI32.@)
1195  *
1196  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1197  */
1198 BOOL WINAPI SetDCHook( HDC hdc, DCHOOKPROC hookProc, DWORD dwHookData )
1199 {
1200     DC *dc = GDI_GetObjPtr( hdc, DC_MAGIC );
1201
1202     if (!dc) return FALSE;
1203
1204     if (!(dc->flags & DC_SAVED))
1205     {
1206         dc->dwHookData = dwHookData;
1207         dc->hookThunk = hookProc;
1208     }
1209     GDI_ReleaseObj( hdc );
1210     return TRUE;
1211 }
1212
1213
1214 /* relay function to call the 16-bit DC hook proc */
1215 static BOOL16 WINAPI call_dc_hook16( HDC16 hdc16, WORD code, DWORD data, LPARAM lParam )
1216 {
1217     WORD args[6];
1218     DWORD ret;
1219     FARPROC16 proc = NULL;
1220     HDC hdc = HDC_32( hdc16 );
1221     DC *dc = DC_GetDCPtr( hdc );
1222
1223     if (!dc) return FALSE;
1224     proc = dc->hookProc;
1225     GDI_ReleaseObj( hdc );
1226     if (!proc) return FALSE;
1227     args[5] = hdc16;
1228     args[4] = code;
1229     args[3] = HIWORD(data);
1230     args[2] = LOWORD(data);
1231     args[1] = HIWORD(lParam);
1232     args[0] = LOWORD(lParam);
1233     WOWCallback16Ex( (DWORD)proc, WCB16_PASCAL, sizeof(args), args, &ret );
1234     return LOWORD(ret);
1235 }
1236
1237 /***********************************************************************
1238  *           SetDCHook   (GDI.190)
1239  */
1240 BOOL16 WINAPI SetDCHook16( HDC16 hdc16, FARPROC16 hookProc, DWORD dwHookData )
1241 {
1242     HDC hdc = HDC_32( hdc16 );
1243     DC *dc = DC_GetDCPtr( hdc );
1244     if (!dc) return FALSE;
1245
1246     dc->hookProc = hookProc;
1247     GDI_ReleaseObj( hdc );
1248     return SetDCHook( hdc, call_dc_hook16, dwHookData );
1249 }
1250
1251
1252 /***********************************************************************
1253  *           GetDCHook   (GDI.191)
1254  */
1255 DWORD WINAPI GetDCHook16( HDC16 hdc16, FARPROC16 *phookProc )
1256 {
1257     HDC hdc = HDC_32( hdc16 );
1258     DC *dc = DC_GetDCPtr( hdc );
1259     DWORD ret;
1260
1261     if (!dc) return 0;
1262     *phookProc = dc->hookProc;
1263     ret = dc->dwHookData;
1264     GDI_ReleaseObj( hdc );
1265     return ret;
1266 }
1267
1268
1269 /***********************************************************************
1270  *           SetHookFlags   (GDI.192)
1271  */
1272 WORD WINAPI SetHookFlags16(HDC16 hdc16, WORD flags)
1273 {
1274     HDC hdc = HDC_32( hdc16 );
1275     DC *dc = DC_GetDCPtr( hdc );
1276
1277     if( dc )
1278     {
1279         WORD wRet = dc->flags & DC_DIRTY;
1280
1281         /* "Undocumented Windows" info is slightly confusing.
1282          */
1283
1284         TRACE("hDC %p, flags %04x\n",hdc,flags);
1285
1286         if( flags & DCHF_INVALIDATEVISRGN )
1287             dc->flags |= DC_DIRTY;
1288         else if( flags & DCHF_VALIDATEVISRGN || !flags )
1289             dc->flags &= ~DC_DIRTY;
1290         GDI_ReleaseObj( hdc );
1291         return wRet;
1292     }
1293     return 0;
1294 }
1295
1296 /***********************************************************************
1297  *           SetICMMode    (GDI32.@)
1298  */
1299 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1300 {
1301 /*FIXME  Asuming that ICM is always off, and cannot be turned on */
1302     if (iEnableICM == ICM_OFF) return ICM_OFF;
1303     if (iEnableICM == ICM_ON) return 0;
1304     if (iEnableICM == ICM_QUERY) return ICM_OFF;
1305     return 0;
1306 }
1307
1308 /***********************************************************************
1309  *           GetDeviceGammaRamp    (GDI32.@)
1310  */
1311 BOOL WINAPI GetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1312 {
1313     BOOL ret = FALSE;
1314     DC *dc = DC_GetDCPtr( hDC );
1315
1316     if( dc )
1317     {
1318         if (dc->funcs->pGetDeviceGammaRamp)
1319             ret = dc->funcs->pGetDeviceGammaRamp(dc->physDev, ptr);
1320         GDI_ReleaseObj( hDC );
1321     }
1322     return ret;
1323 }
1324
1325 /***********************************************************************
1326  *           SetDeviceGammaRamp    (GDI32.@)
1327  */
1328 BOOL WINAPI SetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1329 {
1330     BOOL ret = FALSE;
1331     DC *dc = DC_GetDCPtr( hDC );
1332
1333     if( dc )
1334     {
1335         if (dc->funcs->pSetDeviceGammaRamp)
1336             ret = dc->funcs->pSetDeviceGammaRamp(dc->physDev, ptr);
1337         GDI_ReleaseObj( hDC );
1338     }
1339     return ret;
1340 }
1341
1342 /***********************************************************************
1343  *           GetColorSpace    (GDI32.@)
1344  */
1345 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1346 {
1347 /*FIXME    Need to to whatever GetColorSpace actually does */
1348     return 0;
1349 }
1350
1351 /***********************************************************************
1352  *           CreateColorSpaceA    (GDI32.@)
1353  */
1354 HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
1355 {
1356   FIXME( "stub\n" );
1357   return 0;
1358 }
1359
1360 /***********************************************************************
1361  *           CreateColorSpaceW    (GDI32.@)
1362  */
1363 HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
1364 {
1365   FIXME( "stub\n" );
1366   return 0;
1367 }
1368
1369 /***********************************************************************
1370  *           DeleteColorSpace     (GDI32.@)
1371  */
1372 BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
1373 {
1374   FIXME( "stub\n" );
1375
1376   return TRUE;
1377 }
1378
1379 /***********************************************************************
1380  *           SetColorSpace     (GDI32.@)
1381  */
1382 HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
1383 {
1384   FIXME( "stub\n" );
1385
1386   return hColorSpace;
1387 }
1388
1389 /***********************************************************************
1390  *           GetBoundsRect    (GDI.194)
1391  */
1392 UINT16 WINAPI GetBoundsRect16(HDC16 hdc, LPRECT16 rect, UINT16 flags)
1393 {
1394     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1395 }
1396
1397 /***********************************************************************
1398  *           GetBoundsRect    (GDI32.@)
1399  */
1400 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1401 {
1402     FIXME("(): stub\n");
1403     return DCB_RESET;   /* bounding rectangle always empty */
1404 }
1405
1406 /***********************************************************************
1407  *           SetBoundsRect    (GDI.193)
1408  */
1409 UINT16 WINAPI SetBoundsRect16(HDC16 hdc, const RECT16* rect, UINT16 flags)
1410 {
1411     if ( (flags & DCB_ACCUMULATE) || (flags & DCB_ENABLE) )
1412         FIXME("(%04x, %p, %04x): stub\n", hdc, rect, flags );
1413
1414     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1415 }
1416
1417 /***********************************************************************
1418  *           SetBoundsRect    (GDI32.@)
1419  */
1420 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1421 {
1422     FIXME("(): stub\n");
1423     return DCB_DISABLE;   /* bounding rectangle always empty */
1424 }
1425
1426
1427 /***********************************************************************
1428  *              GetRelAbs               (GDI32.@)
1429  */
1430 INT WINAPI GetRelAbs( HDC hdc, DWORD dwIgnore )
1431 {
1432     INT ret = 0;
1433     DC *dc = DC_GetDCPtr( hdc );
1434     if (dc) ret = dc->relAbsMode;
1435     GDI_ReleaseObj( hdc );
1436     return ret;
1437 }
1438
1439 /***********************************************************************
1440  *           GetLayout    (GDI32.@)
1441  *
1442  * Gets left->right or right->left text layout flags of a dc.
1443  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1444  *
1445  */
1446 DWORD WINAPI GetLayout(HDC hdc)
1447 {
1448     FIXME("(%p): stub\n", hdc);
1449     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1450     return 0;
1451 }
1452
1453 /***********************************************************************
1454  *           SetLayout    (GDI32.@)
1455  *
1456  * Sets left->right or right->left text layout flags of a dc.
1457  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1458  *
1459  */
1460 DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
1461 {
1462     FIXME("(%p,%08lx): stub\n", hdc, layout);
1463     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1464     return 0;
1465 }
1466
1467 /***********************************************************************
1468  *           GetDCBrushColor    (GDI32.@)
1469  *
1470  * Retrieves the current brush color for the specified device
1471  * context (DC).
1472  *
1473  */
1474 COLORREF WINAPI GetDCBrushColor(HDC hdc)
1475 {
1476     DC *dc;
1477     COLORREF dcBrushColor = CLR_INVALID;
1478
1479     TRACE("hdc(%p)\n", hdc);
1480
1481     dc = DC_GetDCPtr( hdc );
1482     if (dc)
1483     {
1484         dcBrushColor = dc->dcBrushColor;
1485         GDI_ReleaseObj( hdc );
1486     }
1487
1488     return dcBrushColor;
1489 }
1490
1491 /***********************************************************************
1492  *           SetDCBrushColor    (GDI32.@)
1493  *
1494  * Sets the current device context (DC) brush color to the specified
1495  * color value. If the device cannot represent the specified color
1496  * value, the color is set to the nearest physical color.
1497  *
1498  */
1499 COLORREF WINAPI SetDCBrushColor(HDC hdc, COLORREF crColor)
1500 {
1501     DC *dc;
1502     COLORREF oldClr = CLR_INVALID;
1503
1504     TRACE("hdc(%p) crColor(%08lx)\n", hdc, crColor);
1505
1506     dc = DC_GetDCPtr( hdc );
1507     if (dc)
1508     {
1509         if (dc->funcs->pSetDCBrushColor)
1510             crColor = dc->funcs->pSetDCBrushColor( dc->physDev, crColor );
1511         else if (dc->hBrush == GetStockObject( DC_BRUSH ))
1512         {
1513             /* If DC_BRUSH is selected, update driver pen color */
1514             HBRUSH hBrush = CreateSolidBrush( crColor );
1515             dc->funcs->pSelectBrush( dc->physDev, hBrush );
1516             DeleteObject( hBrush );
1517         }
1518
1519         if (crColor != CLR_INVALID)
1520         {
1521             oldClr = dc->dcBrushColor;
1522             dc->dcBrushColor = crColor;
1523         }
1524
1525         GDI_ReleaseObj( hdc );
1526     }
1527
1528     return oldClr;
1529 }
1530
1531 /***********************************************************************
1532  *           GetDCPenColor    (GDI32.@)
1533  *
1534  * Retrieves the current pen color for the specified device
1535  * context (DC).
1536  *
1537  */
1538 COLORREF WINAPI GetDCPenColor(HDC hdc)
1539 {
1540     DC *dc;
1541     COLORREF dcPenColor = CLR_INVALID;
1542
1543     TRACE("hdc(%p)\n", hdc);
1544
1545     dc = DC_GetDCPtr( hdc );
1546     if (dc)
1547     {
1548         dcPenColor = dc->dcPenColor;
1549         GDI_ReleaseObj( hdc );
1550     }
1551
1552     return dcPenColor;
1553 }
1554
1555 /***********************************************************************
1556  *           SetDCPenColor    (GDI32.@)
1557  *
1558  * Sets the current device context (DC) pen color to the specified
1559  * color value. If the device cannot represent the specified color
1560  * value, the color is set to the nearest physical color.
1561  *
1562  */
1563 COLORREF WINAPI SetDCPenColor(HDC hdc, COLORREF crColor)
1564 {
1565     DC *dc;
1566     COLORREF oldClr = CLR_INVALID;
1567
1568     TRACE("hdc(%p) crColor(%08lx)\n", hdc, crColor);
1569
1570     dc = DC_GetDCPtr( hdc );
1571     if (dc)
1572     {
1573         if (dc->funcs->pSetDCPenColor)
1574             crColor = dc->funcs->pSetDCPenColor( dc->physDev, crColor );
1575         else if (dc->hPen == GetStockObject( DC_PEN ))
1576         {
1577             /* If DC_PEN is selected, update the driver pen color */
1578             LOGPEN logpen = { PS_SOLID, { 0, 0 }, crColor };
1579             HPEN hPen = CreatePenIndirect( &logpen );
1580             dc->funcs->pSelectPen( dc->physDev, hPen );
1581             DeleteObject( hPen );
1582         }
1583
1584         if (crColor != CLR_INVALID)
1585         {
1586             oldClr = dc->dcPenColor;
1587             dc->dcPenColor = crColor;
1588         }
1589
1590         GDI_ReleaseObj( hdc );
1591     }
1592
1593     return oldClr;
1594 }
1595
1596 /***********************************************************************
1597  *           SetVirtualResolution   (GDI32.@)
1598  *
1599  * Undocumented on msdn.  Called when PowerPoint XP saves a file.
1600  */
1601 DWORD WINAPI SetVirtualResolution(HDC hdc, DWORD dw2, DWORD dw3, DWORD dw4, DWORD dw5)
1602 {
1603     FIXME("(%p %08lx %08lx %08lx %08lx): stub!\n", hdc, dw2, dw3, dw4, dw5);
1604     return FALSE;
1605 }