dlls/gdi32/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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <assert.h>
  24 #include <stdarg.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "wingdi.h"
  30 #include "winreg.h"
  31 #include "winternl.h"
  32 #include "winerror.h"
  33 #include "wownt32.h"
  34 #include "gdi_private.h"
  35 #include "wine/unicode.h"
  36 #include "wine/debug.h"
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(dc);
  39
  40 static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
  41
  42 static BOOL DC_DeleteObject( HGDIOBJ handle );
  43
  44 static const struct gdi_obj_funcs dc_funcs =
  45 {
  46     NULL,             /* pSelectObject */
  47     NULL,             /* pGetObjectA */
  48     NULL,             /* pGetObjectW */
  49     NULL,             /* pUnrealizeObject */
  50     DC_DeleteObject   /* pDeleteObject */
  51 };
  52
  53
  54 static inline DC *get_dc_obj( HDC hdc )
  55 {
  56     DC *dc = GDI_GetObjPtr( hdc, 0 );
  57     if (!dc) return NULL;
  58
  59     if ((dc->header.type != OBJ_DC) &&
  60         (dc->header.type != OBJ_MEMDC) &&
  61         (dc->header.type != OBJ_METADC) &&
  62         (dc->header.type != OBJ_ENHMETADC))
  63     {
  64         GDI_ReleaseObj( hdc );
  65         SetLastError( ERROR_INVALID_HANDLE );
  66         dc = NULL;
  67     }
  68     return dc;
  69 }
  70
  71
  72 /***********************************************************************
  73  *           alloc_dc_ptr
  74  */
  75 DC *alloc_dc_ptr( const DC_FUNCTIONS *funcs, WORD magic )
  76 {
  77     DC *dc;
  78
  79     if (!(dc = HeapAlloc( GetProcessHeap(), 0, sizeof(*dc) ))) return NULL;
  80
  81     dc->funcs               = funcs;
  82     dc->physDev             = NULL;
  83     dc->thread              = GetCurrentThreadId();
  84     dc->refcount            = 1;
  85     dc->dirty               = 0;
  86     dc->saveLevel           = 0;
  87     dc->saved_dc            = 0;
  88     dc->dwHookData          = 0;
  89     dc->hookProc            = NULL;
  90     dc->wndOrgX             = 0;
  91     dc->wndOrgY             = 0;
  92     dc->wndExtX             = 1;
  93     dc->wndExtY             = 1;
  94     dc->vportOrgX           = 0;
  95     dc->vportOrgY           = 0;
  96     dc->vportExtX           = 1;
  97     dc->vportExtY           = 1;
  98     dc->miterLimit          = 10.0f; /* 10.0 is the default, from MSDN */
  99     dc->flags               = 0;
 100     dc->layout              = 0;
 101     dc->hClipRgn            = 0;
 102     dc->hMetaRgn            = 0;
 103     dc->hMetaClipRgn        = 0;
 104     dc->hVisRgn             = 0;
 105     dc->hPen                = GDI_inc_ref_count( GetStockObject( BLACK_PEN ));
 106     dc->hBrush              = GDI_inc_ref_count( GetStockObject( WHITE_BRUSH ));
 107     dc->hFont               = GDI_inc_ref_count( GetStockObject( SYSTEM_FONT ));
 108     dc->hBitmap             = 0;
 109     dc->hDevice             = 0;
 110     dc->hPalette            = GetStockObject( DEFAULT_PALETTE );
 111     dc->gdiFont             = 0;
 112     dc->font_code_page      = CP_ACP;
 113     dc->ROPmode             = R2_COPYPEN;
 114     dc->polyFillMode        = ALTERNATE;
 115     dc->stretchBltMode      = BLACKONWHITE;
 116     dc->relAbsMode          = ABSOLUTE;
 117     dc->backgroundMode      = OPAQUE;
 118     dc->backgroundColor     = RGB( 255, 255, 255 );
 119     dc->dcBrushColor        = RGB( 255, 255, 255 );
 120     dc->dcPenColor          = RGB( 0, 0, 0 );
 121     dc->textColor           = RGB( 0, 0, 0 );
 122     dc->brushOrgX           = 0;
 123     dc->brushOrgY           = 0;
 124     dc->textAlign           = TA_LEFT | TA_TOP | TA_NOUPDATECP;
 125     dc->charExtra           = 0;
 126     dc->breakExtra          = 0;
 127     dc->breakRem            = 0;
 128     dc->MapMode             = MM_TEXT;
 129     dc->GraphicsMode        = GM_COMPATIBLE;
 130     dc->pAbortProc          = NULL;
 131     dc->CursPosX            = 0;
 132     dc->CursPosY            = 0;
 133     dc->ArcDirection        = AD_COUNTERCLOCKWISE;
 134     dc->xformWorld2Wnd.eM11 = 1.0f;
 135     dc->xformWorld2Wnd.eM12 = 0.0f;
 136     dc->xformWorld2Wnd.eM21 = 0.0f;
 137     dc->xformWorld2Wnd.eM22 = 1.0f;
 138     dc->xformWorld2Wnd.eDx  = 0.0f;
 139     dc->xformWorld2Wnd.eDy  = 0.0f;
 140     dc->xformWorld2Vport    = dc->xformWorld2Wnd;
 141     dc->xformVport2World    = dc->xformWorld2Wnd;
 142     dc->vport2WorldValid    = TRUE;
 143     dc->BoundsRect.left     = 0;
 144     dc->BoundsRect.top      = 0;
 145     dc->BoundsRect.right    = 0;
 146     dc->BoundsRect.bottom   = 0;
 147     PATH_InitGdiPath(&dc->path);
 148
 149     if (!(dc->hSelf = alloc_gdi_handle( &dc->header, magic, &dc_funcs )))
 150     {
 151         HeapFree( GetProcessHeap(), 0, dc );
 152         dc = NULL;
 153     }
 154     return dc;
 155 }
 156
 157
 158
 159 /***********************************************************************
 160  *           free_dc_ptr
 161  */
 162 BOOL free_dc_ptr( DC *dc )
 163 {
 164     assert( dc->refcount == 1 );
 165     if (free_gdi_handle( dc->hSelf ) != dc) return FALSE;  /* shouldn't happen */
 166     if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 167     if (dc->hMetaRgn) DeleteObject( dc->hMetaRgn );
 168     if (dc->hMetaClipRgn) DeleteObject( dc->hMetaClipRgn );
 169     if (dc->hVisRgn) DeleteObject( dc->hVisRgn );
 170     PATH_DestroyGdiPath( &dc->path );
 171     return HeapFree( GetProcessHeap(), 0, dc );
 172 }
 173
 174
 175 /***********************************************************************
 176  *           get_dc_ptr
 177  *
 178  * Retrieve a DC pointer but release the GDI lock.
 179  */
 180 DC *get_dc_ptr( HDC hdc )
 181 {
 182     DC *dc = get_dc_obj( hdc );
 183     if (!dc) return NULL;
 184
 185     if (!InterlockedCompareExchange( &dc->refcount, 1, 0 ))
 186     {
 187         dc->thread = GetCurrentThreadId();
 188     }
 189     else if (dc->thread != GetCurrentThreadId())
 190     {
 191         WARN( "dc %p belongs to thread %04x\n", hdc, dc->thread );
 192         GDI_ReleaseObj( hdc );
 193         return NULL;
 194     }
 195     else InterlockedIncrement( &dc->refcount );
 196
 197     GDI_ReleaseObj( hdc );
 198     return dc;
 199 }
 200
 201
 202 /***********************************************************************
 203  *           release_dc_ptr
 204  */
 205 void release_dc_ptr( DC *dc )
 206 {
 207     LONG ref;
 208
 209     dc->thread = 0;
 210     ref = InterlockedDecrement( &dc->refcount );
 211     assert( ref >= 0 );
 212     if (ref) dc->thread = GetCurrentThreadId();  /* we still own it */
 213 }
 214
 215
 216 /***********************************************************************
 217  *           update_dc
 218  *
 219  * Make sure the DC vis region is up to date.
 220  * This function may call up to USER so the GDI lock should _not_
 221  * be held when calling it.
 222  */
 223 void update_dc( DC *dc )
 224 {
 225     if (InterlockedExchange( &dc->dirty, 0 ) && dc->hookProc)
 226         dc->hookProc( dc->hSelf, DCHC_INVALIDVISRGN, dc->dwHookData, 0 );
 227 }
 228
 229
 230 /***********************************************************************
 231  *           DC_DeleteObject
 232  */
 233 static BOOL DC_DeleteObject( HGDIOBJ handle )
 234 {
 235     return DeleteDC( handle );
 236 }
 237
 238
 239 /***********************************************************************
 240  *           DC_InitDC
 241  *
 242  * Setup device-specific DC values for a newly created DC.
 243  */
 244 void DC_InitDC( DC* dc )
 245 {
 246     if (dc->funcs->pRealizeDefaultPalette) dc->funcs->pRealizeDefaultPalette( dc->physDev );
 247     SetTextColor( dc->hSelf, dc->textColor );
 248     SetBkColor( dc->hSelf, dc->backgroundColor );
 249     SelectObject( dc->hSelf, dc->hPen );
 250     SelectObject( dc->hSelf, dc->hBrush );
 251     SelectObject( dc->hSelf, dc->hFont );
 252     CLIPPING_UpdateGCRegion( dc );
 253     SetVirtualResolution( dc->hSelf, 0, 0, 0, 0 );
 254 }
 255
 256
 257 /***********************************************************************
 258  *           DC_InvertXform
 259  *
 260  * Computes the inverse of the transformation xformSrc and stores it to
 261  * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
 262  * is singular.
 263  */
 264 static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
 265 {
 266     double determinant;
 267
 268     determinant = xformSrc->eM11*xformSrc->eM22 -
 269         xformSrc->eM12*xformSrc->eM21;
 270     if (determinant > -1e-12 && determinant < 1e-12)
 271         return FALSE;
 272
 273     xformDest->eM11 =  xformSrc->eM22 / determinant;
 274     xformDest->eM12 = -xformSrc->eM12 / determinant;
 275     xformDest->eM21 = -xformSrc->eM21 / determinant;
 276     xformDest->eM22 =  xformSrc->eM11 / determinant;
 277     xformDest->eDx  = -xformSrc->eDx * xformDest->eM11 -
 278                        xformSrc->eDy * xformDest->eM21;
 279     xformDest->eDy  = -xformSrc->eDx * xformDest->eM12 -
 280                        xformSrc->eDy * xformDest->eM22;
 281
 282     return TRUE;
 283 }
 284
 285 /* Construct a transformation to do the window-to-viewport conversion */
 286 static void construct_window_to_viewport(DC *dc, XFORM *xform)
 287 {
 288     double scaleX, scaleY;
 289     scaleX = (double)dc->vportExtX / (double)dc->wndExtX;
 290     scaleY = (double)dc->vportExtY / (double)dc->wndExtY;
 291
 292     xform->eM11 = scaleX;
 293     xform->eM12 = 0.0;
 294     xform->eM21 = 0.0;
 295     xform->eM22 = scaleY;
 296     xform->eDx  = (double)dc->vportOrgX - scaleX * (double)dc->wndOrgX;
 297     xform->eDy  = (double)dc->vportOrgY - scaleY * (double)dc->wndOrgY;
 298 }
 299
 300 /***********************************************************************
 301  *           DC_UpdateXforms
 302  *
 303  * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
 304  * fields of the specified DC by creating a transformation that
 305  * represents the current mapping mode and combining it with the DC's
 306  * world transform. This function should be called whenever the
 307  * parameters associated with the mapping mode (window and viewport
 308  * extents and origins) or the world transform change.
 309  */
 310 void DC_UpdateXforms( DC *dc )
 311 {
 312     XFORM xformWnd2Vport, oldworld2vport;
 313
 314     construct_window_to_viewport(dc, &xformWnd2Vport);
 315
 316     oldworld2vport = dc->xformWorld2Vport;
 317     /* Combine with the world transformation */
 318     CombineTransform( &dc->xformWorld2Vport, &dc->xformWorld2Wnd,
 319         &xformWnd2Vport );
 320
 321     /* Create inverse of world-to-viewport transformation */
 322     dc->vport2WorldValid = DC_InvertXform( &dc->xformWorld2Vport,
 323         &dc->xformVport2World );
 324
 325     /* Reselect the font and pen back into the dc so that the size
 326        gets updated. */
 327     if (memcmp(&oldworld2vport, &dc->xformWorld2Vport, sizeof(oldworld2vport)) &&
 328         !GdiIsMetaFileDC(dc->hSelf))
 329     {
 330         SelectObject(dc->hSelf, GetCurrentObject(dc->hSelf, OBJ_FONT));
 331         SelectObject(dc->hSelf, GetCurrentObject(dc->hSelf, OBJ_PEN));
 332     }
 333 }
 334
 335
 336 /***********************************************************************
 337  *           save_dc_state
 338  */
 339 INT save_dc_state( HDC hdc )
 340 {
 341     DC * newdc, * dc;
 342     INT ret;
 343
 344     if (!(dc = get_dc_ptr( hdc ))) return 0;
 345     if (!(newdc = HeapAlloc( GetProcessHeap(), 0, sizeof(*newdc ))))
 346     {
 347       release_dc_ptr( dc );
 348       return 0;
 349     }
 350
 351     newdc->flags            = dc->flags | DC_SAVED;
 352     newdc->layout           = dc->layout;
 353     newdc->hPen             = dc->hPen;
 354     newdc->hBrush           = dc->hBrush;
 355     newdc->hFont            = dc->hFont;
 356     newdc->hBitmap          = dc->hBitmap;
 357     newdc->hDevice          = dc->hDevice;
 358     newdc->hPalette         = dc->hPalette;
 359     newdc->ROPmode          = dc->ROPmode;
 360     newdc->polyFillMode     = dc->polyFillMode;
 361     newdc->stretchBltMode   = dc->stretchBltMode;
 362     newdc->relAbsMode       = dc->relAbsMode;
 363     newdc->backgroundMode   = dc->backgroundMode;
 364     newdc->backgroundColor  = dc->backgroundColor;
 365     newdc->textColor        = dc->textColor;
 366     newdc->dcBrushColor     = dc->dcBrushColor;
 367     newdc->dcPenColor       = dc->dcPenColor;
 368     newdc->brushOrgX        = dc->brushOrgX;
 369     newdc->brushOrgY        = dc->brushOrgY;
 370     newdc->textAlign        = dc->textAlign;
 371     newdc->charExtra        = dc->charExtra;
 372     newdc->breakExtra       = dc->breakExtra;
 373     newdc->breakRem         = dc->breakRem;
 374     newdc->MapMode          = dc->MapMode;
 375     newdc->GraphicsMode     = dc->GraphicsMode;
 376     newdc->CursPosX         = dc->CursPosX;
 377     newdc->CursPosY         = dc->CursPosY;
 378     newdc->ArcDirection     = dc->ArcDirection;
 379     newdc->xformWorld2Wnd   = dc->xformWorld2Wnd;
 380     newdc->xformWorld2Vport = dc->xformWorld2Vport;
 381     newdc->xformVport2World = dc->xformVport2World;
 382     newdc->vport2WorldValid = dc->vport2WorldValid;
 383     newdc->wndOrgX          = dc->wndOrgX;
 384     newdc->wndOrgY          = dc->wndOrgY;
 385     newdc->wndExtX          = dc->wndExtX;
 386     newdc->wndExtY          = dc->wndExtY;
 387     newdc->vportOrgX        = dc->vportOrgX;
 388     newdc->vportOrgY        = dc->vportOrgY;
 389     newdc->vportExtX        = dc->vportExtX;
 390     newdc->vportExtY        = dc->vportExtY;
 391     newdc->virtual_res      = dc->virtual_res;
 392     newdc->virtual_size     = dc->virtual_size;
 393     newdc->BoundsRect       = dc->BoundsRect;
 394     newdc->gdiFont          = dc->gdiFont;
 395
 396     newdc->thread    = GetCurrentThreadId();
 397     newdc->refcount  = 1;
 398     newdc->saveLevel = 0;
 399     newdc->saved_dc  = 0;
 400
 401     PATH_InitGdiPath( &newdc->path );
 402
 403     newdc->pAbortProc = NULL;
 404     newdc->hookProc   = NULL;
 405
 406     if (!(newdc->hSelf = alloc_gdi_handle( &newdc->header, dc->header.type, &dc_funcs )))
 407     {
 408         HeapFree( GetProcessHeap(), 0, newdc );
 409         release_dc_ptr( dc );
 410         return 0;
 411     }
 412
 413     /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
 414
 415     newdc->hVisRgn      = 0;
 416     newdc->hClipRgn     = 0;
 417     newdc->hMetaRgn     = 0;
 418     newdc->hMetaClipRgn = 0;
 419     if (dc->hClipRgn)
 420     {
 421         newdc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 422         CombineRgn( newdc->hClipRgn, dc->hClipRgn, 0, RGN_COPY );
 423     }
 424     if (dc->hMetaRgn)
 425     {
 426         newdc->hMetaRgn = CreateRectRgn( 0, 0, 0, 0 );
 427         CombineRgn( newdc->hMetaRgn, dc->hMetaRgn, 0, RGN_COPY );
 428     }
 429     /* don't bother recomputing hMetaClipRgn, we'll do that in SetDCState */
 430
 431     if (!PATH_AssignGdiPath( &newdc->path, &dc->path ))
 432     {
 433         release_dc_ptr( dc );
 434         free_dc_ptr( newdc );
 435         return 0;
 436     }
 437
 438     newdc->saved_dc = dc->saved_dc;
 439     dc->saved_dc = newdc->hSelf;
 440     ret = ++dc->saveLevel;
 441     release_dc_ptr( newdc );
 442     release_dc_ptr( dc );
 443     return ret;
 444 }
 445
 446
 447 /***********************************************************************
 448  *           restore_dc_state
 449  */
 450 BOOL restore_dc_state( HDC hdc, INT level )
 451 {
 452     HDC hdcs, first_dcs;
 453     DC *dc, *dcs;
 454     INT save_level;
 455
 456     if (!(dc = get_dc_ptr( hdc ))) return FALSE;
 457
 458     /* find the state level to restore */
 459
 460     if (abs(level) > dc->saveLevel || level == 0)
 461     {
 462         release_dc_ptr( dc );
 463         return FALSE;
 464     }
 465     if (level < 0) level = dc->saveLevel + level + 1;
 466     first_dcs = dc->saved_dc;
 467     for (hdcs = first_dcs, save_level = dc->saveLevel; save_level > level; save_level--)
 468     {
 469         if (!(dcs = get_dc_ptr( hdcs )))
 470         {
 471             release_dc_ptr( dc );
 472             return FALSE;
 473         }
 474         hdcs = dcs->saved_dc;
 475         release_dc_ptr( dcs );
 476     }
 477
 478     /* restore the state */
 479
 480     if (!(dcs = get_dc_ptr( hdcs )))
 481     {
 482         release_dc_ptr( dc );
 483         return FALSE;
 484     }
 485     if (!PATH_AssignGdiPath( &dc->path, &dcs->path ))
 486     {
 487         release_dc_ptr( dcs );
 488         release_dc_ptr( dc );
 489         return FALSE;
 490     }
 491
 492     dc->flags            = dcs->flags & ~DC_SAVED;
 493     dc->layout           = dcs->layout;
 494     dc->hDevice          = dcs->hDevice;
 495     dc->ROPmode          = dcs->ROPmode;
 496     dc->polyFillMode     = dcs->polyFillMode;
 497     dc->stretchBltMode   = dcs->stretchBltMode;
 498     dc->relAbsMode       = dcs->relAbsMode;
 499     dc->backgroundMode   = dcs->backgroundMode;
 500     dc->backgroundColor  = dcs->backgroundColor;
 501     dc->textColor        = dcs->textColor;
 502     dc->dcBrushColor     = dcs->dcBrushColor;
 503     dc->dcPenColor       = dcs->dcPenColor;
 504     dc->brushOrgX        = dcs->brushOrgX;
 505     dc->brushOrgY        = dcs->brushOrgY;
 506     dc->textAlign        = dcs->textAlign;
 507     dc->charExtra        = dcs->charExtra;
 508     dc->breakExtra       = dcs->breakExtra;
 509     dc->breakRem         = dcs->breakRem;
 510     dc->MapMode          = dcs->MapMode;
 511     dc->GraphicsMode     = dcs->GraphicsMode;
 512     dc->CursPosX         = dcs->CursPosX;
 513     dc->CursPosY         = dcs->CursPosY;
 514     dc->ArcDirection     = dcs->ArcDirection;
 515     dc->xformWorld2Wnd   = dcs->xformWorld2Wnd;
 516     dc->xformWorld2Vport = dcs->xformWorld2Vport;
 517     dc->xformVport2World = dcs->xformVport2World;
 518     dc->vport2WorldValid = dcs->vport2WorldValid;
 519     dc->BoundsRect       = dcs->BoundsRect;
 520
 521     dc->wndOrgX          = dcs->wndOrgX;
 522     dc->wndOrgY          = dcs->wndOrgY;
 523     dc->wndExtX          = dcs->wndExtX;
 524     dc->wndExtY          = dcs->wndExtY;
 525     dc->vportOrgX        = dcs->vportOrgX;
 526     dc->vportOrgY        = dcs->vportOrgY;
 527     dc->vportExtX        = dcs->vportExtX;
 528     dc->vportExtY        = dcs->vportExtY;
 529     dc->virtual_res      = dcs->virtual_res;
 530     dc->virtual_size     = dcs->virtual_size;
 531
 532     if (dcs->hClipRgn)
 533     {
 534         if (!dc->hClipRgn) dc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 535         CombineRgn( dc->hClipRgn, dcs->hClipRgn, 0, RGN_COPY );
 536     }
 537     else
 538     {
 539         if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 540         dc->hClipRgn = 0;
 541     }
 542     if (dcs->hMetaRgn)
 543     {
 544         if (!dc->hMetaRgn) dc->hMetaRgn = CreateRectRgn( 0, 0, 0, 0 );
 545         CombineRgn( dc->hMetaRgn, dcs->hMetaRgn, 0, RGN_COPY );
 546     }
 547     else
 548     {
 549         if (dc->hMetaRgn) DeleteObject( dc->hMetaRgn );
 550         dc->hMetaRgn = 0;
 551     }
 552     CLIPPING_UpdateGCRegion( dc );
 553
 554     SelectObject( hdc, dcs->hBitmap );
 555     SelectObject( hdc, dcs->hBrush );
 556     SelectObject( hdc, dcs->hFont );
 557     SelectObject( hdc, dcs->hPen );
 558     SetBkColor( hdc, dcs->backgroundColor);
 559     SetTextColor( hdc, dcs->textColor);
 560     GDISelectPalette( hdc, dcs->hPalette, FALSE );
 561
 562     dc->saved_dc  = dcs->saved_dc;
 563     dcs->saved_dc = 0;
 564     dc->saveLevel = save_level - 1;
 565
 566     release_dc_ptr( dcs );
 567
 568     /* now destroy all the saved DCs */
 569
 570     while (first_dcs)
 571     {
 572         if (!(dcs = get_dc_ptr( first_dcs ))) break;
 573         hdcs = dcs->saved_dc;
 574         free_dc_ptr( dcs );
 575         first_dcs = hdcs;
 576     }
 577     release_dc_ptr( dc );
 578     return TRUE;
 579 }
 580
 581
 582 /***********************************************************************
 583  *           SaveDC    (GDI32.@)
 584  */
 585 INT WINAPI SaveDC( HDC hdc )
 586 {
 587     DC * dc;
 588     INT ret;
 589
 590     if (!(dc = get_dc_ptr( hdc ))) return 0;
 591
 592     if(dc->funcs->pSaveDC)
 593         ret = dc->funcs->pSaveDC( dc->physDev );
 594     else
 595         ret = save_dc_state( hdc );
 596
 597     release_dc_ptr( dc );
 598     return ret;
 599 }
 600
 601
 602 /***********************************************************************
 603  *           RestoreDC    (GDI32.@)
 604  */
 605 BOOL WINAPI RestoreDC( HDC hdc, INT level )
 606 {
 607     DC *dc;
 608     BOOL success;
 609
 610     TRACE("%p %d\n", hdc, level );
 611     if (!(dc = get_dc_ptr( hdc ))) return FALSE;
 612     update_dc( dc );
 613
 614     if(dc->funcs->pRestoreDC)
 615         success = dc->funcs->pRestoreDC( dc->physDev, level );
 616     else
 617         success = restore_dc_state( hdc, level );
 618
 619     release_dc_ptr( dc );
 620     return success;
 621 }
 622
 623
 624 /***********************************************************************
 625  *           CreateDCW    (GDI32.@)
 626  */
 627 HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 628                       const DEVMODEW *initData )
 629 {
 630     HDC hdc;
 631     DC * dc;
 632     const DC_FUNCTIONS *funcs;
 633     WCHAR buf[300];
 634
 635     GDI_CheckNotLock();
 636
 637     if (!device || !DRIVER_GetDriverName( device, buf, 300 ))
 638     {
 639         if (!driver)
 640         {
 641             ERR( "no device found for %s\n", debugstr_w(device) );
 642             return 0;
 643         }
 644         strcpyW(buf, driver);
 645     }
 646
 647     if (!(funcs = DRIVER_load_driver( buf )))
 648     {
 649         ERR( "no driver found for %s\n", debugstr_w(buf) );
 650         return 0;
 651     }
 652     if (!(dc = alloc_dc_ptr( funcs, OBJ_DC ))) goto error;
 653     hdc = dc->hSelf;
 654
 655     dc->hBitmap = GDI_inc_ref_count( GetStockObject( DEFAULT_BITMAP ));
 656     if (!(dc->hVisRgn = CreateRectRgn( 0, 0, 1, 1 ))) goto error;
 657
 658     TRACE("(driver=%s, device=%s, output=%s): returning %p\n",
 659           debugstr_w(driver), debugstr_w(device), debugstr_w(output), dc->hSelf );
 660
 661     if (dc->funcs->pCreateDC &&
 662         !dc->funcs->pCreateDC( hdc, &dc->physDev, buf, device, output, initData ))
 663     {
 664         WARN("creation aborted by device\n" );
 665         goto error;
 666     }
 667
 668     SetRectRgn( dc->hVisRgn, 0, 0,
 669                 GetDeviceCaps( hdc, DESKTOPHORZRES ), GetDeviceCaps( hdc, DESKTOPVERTRES ) );
 670
 671     DC_InitDC( dc );
 672     release_dc_ptr( dc );
 673     return hdc;
 674
 675 error:
 676     if (dc) free_dc_ptr( dc );
 677     return 0;
 678 }
 679
 680
 681 /***********************************************************************
 682  *           CreateDCA    (GDI32.@)
 683  */
 684 HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
 685                       const DEVMODEA *initData )
 686 {
 687     UNICODE_STRING driverW, deviceW, outputW;
 688     DEVMODEW *initDataW;
 689     HDC ret;
 690
 691     if (driver) RtlCreateUnicodeStringFromAsciiz(&driverW, driver);
 692     else driverW.Buffer = NULL;
 693
 694     if (device) RtlCreateUnicodeStringFromAsciiz(&deviceW, device);
 695     else deviceW.Buffer = NULL;
 696
 697     if (output) RtlCreateUnicodeStringFromAsciiz(&outputW, output);
 698     else outputW.Buffer = NULL;
 699
 700     initDataW = NULL;
 701     if (initData)
 702     {
 703         /* don't convert initData for DISPLAY driver, it's not used */
 704         if (!driverW.Buffer || strcmpiW( driverW.Buffer, displayW ))
 705             initDataW = GdiConvertToDevmodeW(initData);
 706     }
 707
 708     ret = CreateDCW( driverW.Buffer, deviceW.Buffer, outputW.Buffer, initDataW );
 709
 710     RtlFreeUnicodeString(&driverW);
 711     RtlFreeUnicodeString(&deviceW);
 712     RtlFreeUnicodeString(&outputW);
 713     HeapFree(GetProcessHeap(), 0, initDataW);
 714     return ret;
 715 }
 716
 717
 718 /***********************************************************************
 719  *           CreateICA    (GDI32.@)
 720  */
 721 HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
 722                           const DEVMODEA* initData )
 723 {
 724       /* Nothing special yet for ICs */
 725     return CreateDCA( driver, device, output, initData );
 726 }
 727
 728
 729 /***********************************************************************
 730  *           CreateICW    (GDI32.@)
 731  */
 732 HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 733                           const DEVMODEW* initData )
 734 {
 735       /* Nothing special yet for ICs */
 736     return CreateDCW( driver, device, output, initData );
 737 }
 738
 739
 740 /***********************************************************************
 741  *           CreateCompatibleDC   (GDI32.@)
 742  */
 743 HDC WINAPI CreateCompatibleDC( HDC hdc )
 744 {
 745     DC *dc, *origDC;
 746     HDC ret;
 747     const DC_FUNCTIONS *funcs = NULL;
 748     PHYSDEV physDev = NULL;
 749
 750     GDI_CheckNotLock();
 751
 752     if (hdc)
 753     {
 754         if (!(origDC = get_dc_ptr( hdc ))) return 0;
 755         if (GetObjectType( hdc ) == OBJ_DC)
 756         {
 757             funcs = origDC->funcs;
 758             physDev = origDC->physDev;
 759         }
 760         release_dc_ptr( origDC );
 761     }
 762
 763     if (!funcs && !(funcs = DRIVER_get_display_driver())) return 0;
 764
 765     if (!(dc = alloc_dc_ptr( funcs, OBJ_MEMDC ))) goto error;
 766
 767     TRACE("(%p): returning %p\n", hdc, dc->hSelf );
 768
 769     dc->hBitmap = GDI_inc_ref_count( GetStockObject( DEFAULT_BITMAP ));
 770     if (!(dc->hVisRgn = CreateRectRgn( 0, 0, 1, 1 ))) goto error;   /* default bitmap is 1x1 */
 771
 772     /* Copy the driver-specific physical device info into
 773      * the new DC. The driver may use this read-only info
 774      * while creating the compatible DC below. */
 775     dc->physDev = physDev;
 776     ret = dc->hSelf;
 777
 778     if (dc->funcs->pCreateDC &&
 779         !dc->funcs->pCreateDC( dc->hSelf, &dc->physDev, NULL, NULL, NULL, NULL ))
 780     {
 781         WARN("creation aborted by device\n");
 782         goto error;
 783     }
 784
 785     DC_InitDC( dc );
 786     release_dc_ptr( dc );
 787     return ret;
 788
 789 error:
 790     if (dc) free_dc_ptr( dc );
 791     return 0;
 792 }
 793
 794
 795 /***********************************************************************
 796  *           DeleteDC    (GDI32.@)
 797  */
 798 BOOL WINAPI DeleteDC( HDC hdc )
 799 {
 800     DC * dc;
 801
 802     TRACE("%p\n", hdc );
 803
 804     GDI_CheckNotLock();
 805
 806     if (!(dc = get_dc_ptr( hdc ))) return FALSE;
 807     if (dc->refcount != 1)
 808     {
 809         FIXME( "not deleting busy DC %p refcount %u\n", dc->hSelf, dc->refcount );
 810         release_dc_ptr( dc );
 811         return FALSE;
 812     }
 813
 814     /* Call hook procedure to check whether is it OK to delete this DC */
 815     if (dc->hookProc && !dc->hookProc( hdc, DCHC_DELETEDC, dc->dwHookData, 0 ))
 816     {
 817         release_dc_ptr( dc );
 818         return TRUE;
 819     }
 820
 821     while (dc->saveLevel)
 822     {
 823         DC * dcs;
 824         HDC hdcs = dc->saved_dc;
 825         if (!(dcs = get_dc_ptr( hdcs ))) break;
 826         dc->saved_dc = dcs->saved_dc;
 827         dc->saveLevel--;
 828         free_dc_ptr( dcs );
 829     }
 830
 831     if (!(dc->flags & DC_SAVED))
 832     {
 833         SelectObject( hdc, GetStockObject(BLACK_PEN) );
 834         SelectObject( hdc, GetStockObject(WHITE_BRUSH) );
 835         SelectObject( hdc, GetStockObject(SYSTEM_FONT) );
 836         SelectObject( hdc, GetStockObject(DEFAULT_BITMAP) );
 837         if (dc->funcs->pDeleteDC) dc->funcs->pDeleteDC(dc->physDev);
 838         dc->physDev = NULL;
 839     }
 840
 841     free_dc_ptr( dc );
 842     return TRUE;
 843 }
 844
 845
 846 /***********************************************************************
 847  *           ResetDCW    (GDI32.@)
 848  */
 849 HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
 850 {
 851     DC *dc;
 852     HDC ret = hdc;
 853
 854     if ((dc = get_dc_ptr( hdc )))
 855     {
 856         if (dc->funcs->pResetDC)
 857         {
 858             ret = dc->funcs->pResetDC( dc->physDev, devmode );
 859             if (ret)  /* reset the visible region */
 860             {
 861                 dc->dirty = 0;
 862                 SetRectRgn( dc->hVisRgn, 0, 0, GetDeviceCaps( hdc, DESKTOPHORZRES ),
 863                             GetDeviceCaps( hdc, DESKTOPVERTRES ) );
 864                 CLIPPING_UpdateGCRegion( dc );
 865             }
 866         }
 867         release_dc_ptr( dc );
 868     }
 869     return ret;
 870 }
 871
 872
 873 /***********************************************************************
 874  *           ResetDCA    (GDI32.@)
 875  */
 876 HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
 877 {
 878     DEVMODEW *devmodeW;
 879     HDC ret;
 880
 881     if (devmode) devmodeW = GdiConvertToDevmodeW(devmode);
 882     else devmodeW = NULL;
 883
 884     ret = ResetDCW(hdc, devmodeW);
 885
 886     HeapFree(GetProcessHeap(), 0, devmodeW);
 887     return ret;
 888 }
 889
 890
 891 /***********************************************************************
 892  *           GetDeviceCaps    (GDI32.@)
 893  */
 894 INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
 895 {
 896     DC *dc;
 897     INT ret = 0;
 898
 899     if ((dc = get_dc_ptr( hdc )))
 900     {
 901         if (dc->funcs->pGetDeviceCaps) ret = dc->funcs->pGetDeviceCaps( dc->physDev, cap );
 902         else switch(cap)  /* return meaningful values for some entries */
 903         {
 904         case HORZRES:     ret = 640; break;
 905         case VERTRES:     ret = 480; break;
 906         case BITSPIXEL:   ret = 1; break;
 907         case PLANES:      ret = 1; break;
 908         case NUMCOLORS:   ret = 2; break;
 909         case ASPECTX:     ret = 36; break;
 910         case ASPECTY:     ret = 36; break;
 911         case ASPECTXY:    ret = 51; break;
 912         case LOGPIXELSX:  ret = 72; break;
 913         case LOGPIXELSY:  ret = 72; break;
 914         case SIZEPALETTE: ret = 2; break;
 915         case TEXTCAPS:
 916             ret = (TC_OP_CHARACTER | TC_OP_STROKE | TC_CP_STROKE |
 917                    TC_CR_ANY | TC_SF_X_YINDEP | TC_SA_DOUBLE | TC_SA_INTEGER |
 918                    TC_SA_CONTIN | TC_UA_ABLE | TC_SO_ABLE | TC_RA_ABLE | TC_VA_ABLE);
 919             break;
 920         }
 921         release_dc_ptr( dc );
 922     }
 923     return ret;
 924 }
 925
 926
 927 /***********************************************************************
 928  *              GetBkColor (GDI32.@)
 929  */
 930 COLORREF WINAPI GetBkColor( HDC hdc )
 931 {
 932     COLORREF ret = 0;
 933     DC * dc = get_dc_ptr( hdc );
 934     if (dc)
 935     {
 936         ret = dc->backgroundColor;
 937         release_dc_ptr( dc );
 938     }
 939     return ret;
 940 }
 941
 942
 943 /***********************************************************************
 944  *           SetBkColor    (GDI32.@)
 945  */
 946 COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
 947 {
 948     COLORREF oldColor;
 949     DC * dc = get_dc_ptr( hdc );
 950
 951     TRACE("hdc=%p color=0x%08x\n", hdc, color);
 952
 953     if (!dc) return CLR_INVALID;
 954     oldColor = dc->backgroundColor;
 955     if (dc->funcs->pSetBkColor)
 956     {
 957         color = dc->funcs->pSetBkColor(dc->physDev, color);
 958         if (color == CLR_INVALID)  /* don't change it */
 959         {
 960             color = oldColor;
 961             oldColor = CLR_INVALID;
 962         }
 963     }
 964     dc->backgroundColor = color;
 965     release_dc_ptr( dc );
 966     return oldColor;
 967 }
 968
 969
 970 /***********************************************************************
 971  *              GetTextColor (GDI32.@)
 972  */
 973 COLORREF WINAPI GetTextColor( HDC hdc )
 974 {
 975     COLORREF ret = 0;
 976     DC * dc = get_dc_ptr( hdc );
 977     if (dc)
 978     {
 979         ret = dc->textColor;
 980         release_dc_ptr( dc );
 981     }
 982     return ret;
 983 }
 984
 985
 986 /***********************************************************************
 987  *           SetTextColor    (GDI32.@)
 988  */
 989 COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
 990 {
 991     COLORREF oldColor;
 992     DC * dc = get_dc_ptr( hdc );
 993
 994     TRACE(" hdc=%p color=0x%08x\n", hdc, color);
 995
 996     if (!dc) return CLR_INVALID;
 997     oldColor = dc->textColor;
 998     if (dc->funcs->pSetTextColor)
 999     {
1000         color = dc->funcs->pSetTextColor(dc->physDev, color);
1001         if (color == CLR_INVALID)  /* don't change it */
1002         {
1003             color = oldColor;
1004             oldColor = CLR_INVALID;
1005         }
1006     }
1007     dc->textColor = color;
1008     release_dc_ptr( dc );
1009     return oldColor;
1010 }
1011
1012
1013 /***********************************************************************
1014  *              GetTextAlign (GDI32.@)
1015  */
1016 UINT WINAPI GetTextAlign( HDC hdc )
1017 {
1018     UINT ret = 0;
1019     DC * dc = get_dc_ptr( hdc );
1020     if (dc)
1021     {
1022         ret = dc->textAlign;
1023         release_dc_ptr( dc );
1024     }
1025     return ret;
1026 }
1027
1028
1029 /***********************************************************************
1030  *           SetTextAlign    (GDI32.@)
1031  */
1032 UINT WINAPI SetTextAlign( HDC hdc, UINT align )
1033 {
1034     UINT ret;
1035     DC *dc = get_dc_ptr( hdc );
1036
1037     TRACE("hdc=%p align=%d\n", hdc, align);
1038
1039     if (!dc) return 0x0;
1040     ret = dc->textAlign;
1041     if (dc->funcs->pSetTextAlign)
1042         if (!dc->funcs->pSetTextAlign(dc->physDev, align))
1043             ret = GDI_ERROR;
1044     if (ret != GDI_ERROR)
1045         dc->textAlign = align;
1046     release_dc_ptr( dc );
1047     return ret;
1048 }
1049
1050 /***********************************************************************
1051  *           GetDCOrgEx  (GDI32.@)
1052  */
1053 BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
1054 {
1055     DC * dc;
1056
1057     if (!lpp) return FALSE;
1058     if (!(dc = get_dc_ptr( hDC ))) return FALSE;
1059
1060     lpp->x = lpp->y = 0;
1061     if (dc->funcs->pGetDCOrgEx) dc->funcs->pGetDCOrgEx( dc->physDev, lpp );
1062     release_dc_ptr( dc );
1063     return TRUE;
1064 }
1065
1066
1067 /***********************************************************************
1068  *              GetGraphicsMode (GDI32.@)
1069  */
1070 INT WINAPI GetGraphicsMode( HDC hdc )
1071 {
1072     INT ret = 0;
1073     DC * dc = get_dc_ptr( hdc );
1074     if (dc)
1075     {
1076         ret = dc->GraphicsMode;
1077         release_dc_ptr( dc );
1078     }
1079     return ret;
1080 }
1081
1082
1083 /***********************************************************************
1084  *           SetGraphicsMode    (GDI32.@)
1085  */
1086 INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
1087 {
1088     INT ret = 0;
1089     DC *dc = get_dc_ptr( hdc );
1090
1091     /* One would think that setting the graphics mode to GM_COMPATIBLE
1092      * would also reset the world transformation matrix to the unity
1093      * matrix. However, in Windows, this is not the case. This doesn't
1094      * make a lot of sense to me, but that's the way it is.
1095      */
1096     if (!dc) return 0;
1097     if ((mode > 0) && (mode <= GM_LAST))
1098     {
1099         ret = dc->GraphicsMode;
1100         dc->GraphicsMode = mode;
1101     }
1102     release_dc_ptr( dc );
1103     return ret;
1104 }
1105
1106
1107 /***********************************************************************
1108  *              GetArcDirection (GDI32.@)
1109  */
1110 INT WINAPI GetArcDirection( HDC hdc )
1111 {
1112     INT ret = 0;
1113     DC * dc = get_dc_ptr( hdc );
1114     if (dc)
1115     {
1116         ret = dc->ArcDirection;
1117         release_dc_ptr( dc );
1118     }
1119     return ret;
1120 }
1121
1122
1123 /***********************************************************************
1124  *           SetArcDirection    (GDI32.@)
1125  */
1126 INT WINAPI SetArcDirection( HDC hdc, INT nDirection )
1127 {
1128     DC * dc;
1129     INT nOldDirection = 0;
1130
1131     if (nDirection!=AD_COUNTERCLOCKWISE && nDirection!=AD_CLOCKWISE)
1132     {
1133         SetLastError(ERROR_INVALID_PARAMETER);
1134         return 0;
1135     }
1136
1137     if ((dc = get_dc_ptr( hdc )))
1138     {
1139         if (dc->funcs->pSetArcDirection)
1140         {
1141             dc->funcs->pSetArcDirection(dc->physDev, nDirection);
1142         }
1143         nOldDirection = dc->ArcDirection;
1144         dc->ArcDirection = nDirection;
1145         release_dc_ptr( dc );
1146     }
1147     return nOldDirection;
1148 }
1149
1150
1151 /***********************************************************************
1152  *           GetWorldTransform    (GDI32.@)
1153  */
1154 BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
1155 {
1156     DC * dc;
1157     if (!xform) return FALSE;
1158     if (!(dc = get_dc_ptr( hdc ))) return FALSE;
1159     *xform = dc->xformWorld2Wnd;
1160     release_dc_ptr( dc );
1161     return TRUE;
1162 }
1163
1164
1165 /***********************************************************************
1166  *           GetTransform    (GDI32.@)
1167  *
1168  * Undocumented
1169  *
1170  * Returns one of the co-ordinate space transforms
1171  *
1172  * PARAMS
1173  *    hdc   [I] Device context.
1174  *    which [I] Which xform to return:
1175  *                  0x203 World -> Page transform (that set by SetWorldTransform).
1176  *                  0x304 Page -> Device transform (the mapping mode transform).
1177  *                  0x204 World -> Device transform (the combination of the above two).
1178  *                  0x402 Device -> World transform (the inversion of the above).
1179  *    xform [O] The xform.
1180  *
1181  */
1182 BOOL WINAPI GetTransform( HDC hdc, DWORD which, XFORM *xform )
1183 {
1184     BOOL ret = TRUE;
1185     DC *dc = get_dc_ptr( hdc );
1186     if (!dc) return FALSE;
1187
1188     switch(which)
1189     {
1190     case 0x203:
1191         *xform = dc->xformWorld2Wnd;
1192         break;
1193
1194     case 0x304:
1195         construct_window_to_viewport(dc, xform);
1196         break;
1197
1198     case 0x204:
1199         *xform = dc->xformWorld2Vport;
1200         break;
1201
1202     case 0x402:
1203         *xform = dc->xformVport2World;
1204         break;
1205
1206     default:
1207         FIXME("Unknown code %x\n", which);
1208         ret = FALSE;
1209     }
1210
1211     release_dc_ptr( dc );
1212     return ret;
1213 }
1214
1215
1216 /***********************************************************************
1217  *           SetWorldTransform    (GDI32.@)
1218  */
1219 BOOL WINAPI SetWorldTransform( HDC hdc, const XFORM *xform )
1220 {
1221     BOOL ret = FALSE;
1222     DC *dc;
1223
1224     if (!xform) return FALSE;
1225
1226     dc = get_dc_ptr( hdc );
1227     if (!dc) return FALSE;
1228
1229     /* Check that graphics mode is GM_ADVANCED */
1230     if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1231
1232     TRACE("eM11 %f eM12 %f eM21 %f eM22 %f eDx %f eDy %f\n",
1233         xform->eM11, xform->eM12, xform->eM21, xform->eM22, xform->eDx, xform->eDy);
1234
1235     /* The transform must conform to (eM11 * eM22 != eM12 * eM21) requirement */
1236     if (xform->eM11 * xform->eM22 == xform->eM12 * xform->eM21) goto done;
1237
1238     if (dc->funcs->pSetWorldTransform)
1239     {
1240         ret = dc->funcs->pSetWorldTransform(dc->physDev, xform);
1241         if (!ret) goto done;
1242     }
1243
1244     dc->xformWorld2Wnd = *xform;
1245     DC_UpdateXforms( dc );
1246     ret = TRUE;
1247  done:
1248     release_dc_ptr( dc );
1249     return ret;
1250 }
1251
1252
1253 /****************************************************************************
1254  * ModifyWorldTransform [GDI32.@]
1255  * Modifies the world transformation for a device context.
1256  *
1257  * PARAMS
1258  *    hdc   [I] Handle to device context
1259  *    xform [I] XFORM structure that will be used to modify the world
1260  *              transformation
1261  *    iMode [I] Specifies in what way to modify the world transformation
1262  *              Possible values:
1263  *              MWT_IDENTITY
1264  *                 Resets the world transformation to the identity matrix.
1265  *                 The parameter xform is ignored.
1266  *              MWT_LEFTMULTIPLY
1267  *                 Multiplies xform into the world transformation matrix from
1268  *                 the left.
1269  *              MWT_RIGHTMULTIPLY
1270  *                 Multiplies xform into the world transformation matrix from
1271  *                 the right.
1272  *
1273  * RETURNS
1274  *  Success: TRUE.
1275  *  Failure: FALSE. Use GetLastError() to determine the cause.
1276  */
1277 BOOL WINAPI ModifyWorldTransform( HDC hdc, const XFORM *xform,
1278     DWORD iMode )
1279 {
1280     BOOL ret = FALSE;
1281     DC *dc = get_dc_ptr( hdc );
1282
1283     /* Check for illegal parameters */
1284     if (!dc) return FALSE;
1285     if (!xform && iMode != MWT_IDENTITY) goto done;
1286
1287     /* Check that graphics mode is GM_ADVANCED */
1288     if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1289
1290     if (dc->funcs->pModifyWorldTransform)
1291     {
1292         ret = dc->funcs->pModifyWorldTransform(dc->physDev, xform, iMode);
1293         if (!ret) goto done;
1294     }
1295
1296     switch (iMode)
1297     {
1298         case MWT_IDENTITY:
1299             dc->xformWorld2Wnd.eM11 = 1.0f;
1300             dc->xformWorld2Wnd.eM12 = 0.0f;
1301             dc->xformWorld2Wnd.eM21 = 0.0f;
1302             dc->xformWorld2Wnd.eM22 = 1.0f;
1303             dc->xformWorld2Wnd.eDx  = 0.0f;
1304             dc->xformWorld2Wnd.eDy  = 0.0f;
1305             break;
1306         case MWT_LEFTMULTIPLY:
1307             CombineTransform( &dc->xformWorld2Wnd, xform,
1308                 &dc->xformWorld2Wnd );
1309             break;
1310         case MWT_RIGHTMULTIPLY:
1311             CombineTransform( &dc->xformWorld2Wnd, &dc->xformWorld2Wnd,
1312                 xform );
1313             break;
1314         default:
1315             goto done;
1316     }
1317
1318     DC_UpdateXforms( dc );
1319     ret = TRUE;
1320  done:
1321     release_dc_ptr( dc );
1322     return ret;
1323 }
1324
1325
1326 /****************************************************************************
1327  * CombineTransform [GDI32.@]
1328  * Combines two transformation matrices.
1329  *
1330  * PARAMS
1331  *    xformResult [O] Stores the result of combining the two matrices
1332  *    xform1      [I] Specifies the first matrix to apply
1333  *    xform2      [I] Specifies the second matrix to apply
1334  *
1335  * REMARKS
1336  *    The same matrix can be passed in for more than one of the parameters.
1337  *
1338  * RETURNS
1339  *  Success: TRUE.
1340  *  Failure: FALSE. Use GetLastError() to determine the cause.
1341  */
1342 BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1343     const XFORM *xform2 )
1344 {
1345     XFORM xformTemp;
1346
1347     /* Check for illegal parameters */
1348     if (!xformResult || !xform1 || !xform2)
1349         return FALSE;
1350
1351     /* Create the result in a temporary XFORM, since xformResult may be
1352      * equal to xform1 or xform2 */
1353     xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1354                      xform1->eM12 * xform2->eM21;
1355     xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1356                      xform1->eM12 * xform2->eM22;
1357     xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1358                      xform1->eM22 * xform2->eM21;
1359     xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1360                      xform1->eM22 * xform2->eM22;
1361     xformTemp.eDx  = xform1->eDx  * xform2->eM11 +
1362                      xform1->eDy  * xform2->eM21 +
1363                      xform2->eDx;
1364     xformTemp.eDy  = xform1->eDx  * xform2->eM12 +
1365                      xform1->eDy  * xform2->eM22 +
1366                      xform2->eDy;
1367
1368     /* Copy the result to xformResult */
1369     *xformResult = xformTemp;
1370
1371     return TRUE;
1372 }
1373
1374
1375 /***********************************************************************
1376  *           SetDCHook   (GDI32.@)
1377  *
1378  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1379  */
1380 BOOL WINAPI SetDCHook( HDC hdc, DCHOOKPROC hookProc, DWORD_PTR dwHookData )
1381 {
1382     DC *dc = get_dc_ptr( hdc );
1383
1384     if (!dc) return FALSE;
1385
1386     if (!(dc->flags & DC_SAVED))
1387     {
1388         dc->dwHookData = dwHookData;
1389         dc->hookProc = hookProc;
1390     }
1391     release_dc_ptr( dc );
1392     return TRUE;
1393 }
1394
1395
1396 /***********************************************************************
1397  *           GetDCHook   (GDI32.@)
1398  *
1399  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1400  */
1401 DWORD_PTR WINAPI GetDCHook( HDC hdc, DCHOOKPROC *proc )
1402 {
1403     DC *dc = get_dc_ptr( hdc );
1404     DWORD_PTR ret;
1405
1406     if (!dc) return 0;
1407     if (proc) *proc = dc->hookProc;
1408     ret = dc->dwHookData;
1409     release_dc_ptr( dc );
1410     return ret;
1411 }
1412
1413
1414 /***********************************************************************
1415  *           SetHookFlags   (GDI32.@)
1416  *
1417  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1418  */
1419 WORD WINAPI SetHookFlags( HDC hdc, WORD flags )
1420 {
1421     DC *dc = get_dc_obj( hdc );  /* not get_dc_ptr, this needs to work from any thread */
1422     LONG ret = 0;
1423
1424     if (!dc) return 0;
1425
1426     /* "Undocumented Windows" info is slightly confusing. */
1427
1428     TRACE("hDC %p, flags %04x\n",hdc,flags);
1429
1430     if (flags & DCHF_INVALIDATEVISRGN)
1431         ret = InterlockedExchange( &dc->dirty, 1 );
1432     else if (flags & DCHF_VALIDATEVISRGN || !flags)
1433         ret = InterlockedExchange( &dc->dirty, 0 );
1434
1435     GDI_ReleaseObj( dc );
1436     return ret;
1437 }
1438
1439 /***********************************************************************
1440  *           SetICMMode    (GDI32.@)
1441  */
1442 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1443 {
1444 /*FIXME:  Assume that ICM is always off, and cannot be turned on */
1445     if (iEnableICM == ICM_OFF) return ICM_OFF;
1446     if (iEnableICM == ICM_ON) return 0;
1447     if (iEnableICM == ICM_QUERY) return ICM_OFF;
1448     return 0;
1449 }
1450
1451 /***********************************************************************
1452  *           GetDeviceGammaRamp    (GDI32.@)
1453  */
1454 BOOL WINAPI GetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1455 {
1456     BOOL ret = FALSE;
1457     DC *dc = get_dc_ptr( hDC );
1458
1459     if( dc )
1460     {
1461         if (dc->funcs->pGetDeviceGammaRamp)
1462             ret = dc->funcs->pGetDeviceGammaRamp(dc->physDev, ptr);
1463         release_dc_ptr( dc );
1464     }
1465     return ret;
1466 }
1467
1468 /***********************************************************************
1469  *           SetDeviceGammaRamp    (GDI32.@)
1470  */
1471 BOOL WINAPI SetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1472 {
1473     BOOL ret = FALSE;
1474     DC *dc = get_dc_ptr( hDC );
1475
1476     if( dc )
1477     {
1478         if (dc->funcs->pSetDeviceGammaRamp)
1479             ret = dc->funcs->pSetDeviceGammaRamp(dc->physDev, ptr);
1480         release_dc_ptr( dc );
1481     }
1482     return ret;
1483 }
1484
1485 /***********************************************************************
1486  *           GetColorSpace    (GDI32.@)
1487  */
1488 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1489 {
1490 /*FIXME    Need to to whatever GetColorSpace actually does */
1491     return 0;
1492 }
1493
1494 /***********************************************************************
1495  *           CreateColorSpaceA    (GDI32.@)
1496  */
1497 HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
1498 {
1499   FIXME( "stub\n" );
1500   return 0;
1501 }
1502
1503 /***********************************************************************
1504  *           CreateColorSpaceW    (GDI32.@)
1505  */
1506 HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
1507 {
1508   FIXME( "stub\n" );
1509   return 0;
1510 }
1511
1512 /***********************************************************************
1513  *           DeleteColorSpace     (GDI32.@)
1514  */
1515 BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
1516 {
1517   FIXME( "stub\n" );
1518
1519   return TRUE;
1520 }
1521
1522 /***********************************************************************
1523  *           SetColorSpace     (GDI32.@)
1524  */
1525 HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
1526 {
1527   FIXME( "stub\n" );
1528
1529   return hColorSpace;
1530 }
1531
1532 /***********************************************************************
1533  *           GetBoundsRect    (GDI32.@)
1534  */
1535 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1536 {
1537     UINT ret;
1538     DC *dc = get_dc_ptr( hdc );
1539
1540     if ( !dc ) return 0;
1541
1542     if (rect)
1543     {
1544         *rect = dc->BoundsRect;
1545         ret = ((dc->flags & DC_BOUNDS_SET) ? DCB_SET : DCB_RESET);
1546     }
1547     else
1548         ret = 0;
1549
1550     if (flags & DCB_RESET)
1551     {
1552         dc->BoundsRect.left   = 0;
1553         dc->BoundsRect.top    = 0;
1554         dc->BoundsRect.right  = 0;
1555         dc->BoundsRect.bottom = 0;
1556         dc->flags &= ~DC_BOUNDS_SET;
1557     }
1558     release_dc_ptr( dc );
1559     return ret;
1560 }
1561
1562
1563 /***********************************************************************
1564  *           SetBoundsRect    (GDI32.@)
1565  */
1566 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1567 {
1568     UINT ret;
1569     DC *dc;
1570
1571     if ((flags & DCB_ENABLE) && (flags & DCB_DISABLE)) return 0;
1572     if (!(dc = get_dc_ptr( hdc ))) return 0;
1573
1574     ret = ((dc->flags & DC_BOUNDS_ENABLE) ? DCB_ENABLE : DCB_DISABLE) |
1575           ((dc->flags & DC_BOUNDS_SET) ? DCB_SET : DCB_RESET);
1576
1577     if (flags & DCB_RESET)
1578     {
1579         dc->BoundsRect.left   = 0;
1580         dc->BoundsRect.top    = 0;
1581         dc->BoundsRect.right  = 0;
1582         dc->BoundsRect.bottom = 0;
1583         dc->flags &= ~DC_BOUNDS_SET;
1584     }
1585
1586     if ((flags & DCB_ACCUMULATE) && rect && rect->left < rect->right && rect->top < rect->bottom)
1587     {
1588         if (dc->flags & DC_BOUNDS_SET)
1589         {
1590             dc->BoundsRect.left   = min( dc->BoundsRect.left, rect->left );
1591             dc->BoundsRect.top    = min( dc->BoundsRect.top, rect->top );
1592             dc->BoundsRect.right  = max( dc->BoundsRect.right, rect->right );
1593             dc->BoundsRect.bottom = max( dc->BoundsRect.bottom, rect->bottom );
1594         }
1595         else
1596         {
1597             dc->BoundsRect = *rect;
1598             dc->flags |= DC_BOUNDS_SET;
1599         }
1600     }
1601
1602     if (flags & DCB_ENABLE) dc->flags |= DC_BOUNDS_ENABLE;
1603     if (flags & DCB_DISABLE) dc->flags &= ~DC_BOUNDS_ENABLE;
1604
1605     release_dc_ptr( dc );
1606     return ret;
1607 }
1608
1609
1610 /***********************************************************************
1611  *              GetRelAbs               (GDI32.@)
1612  */
1613 INT WINAPI GetRelAbs( HDC hdc, DWORD dwIgnore )
1614 {
1615     INT ret = 0;
1616     DC *dc = get_dc_ptr( hdc );
1617     if (dc)
1618     {
1619         ret = dc->relAbsMode;
1620         release_dc_ptr( dc );
1621     }
1622     return ret;
1623 }
1624
1625
1626
1627
1628 /***********************************************************************
1629  *              GetBkMode (GDI32.@)
1630  */
1631 INT WINAPI GetBkMode( HDC hdc )
1632 {
1633     INT ret = 0;
1634     DC * dc = get_dc_ptr( hdc );
1635     if (dc)
1636     {
1637         ret = dc->backgroundMode;
1638         release_dc_ptr( dc );
1639     }
1640     return ret;
1641 }
1642
1643
1644 /***********************************************************************
1645  *              SetBkMode (GDI32.@)
1646  */
1647 INT WINAPI SetBkMode( HDC hdc, INT mode )
1648 {
1649     INT ret;
1650     DC *dc;
1651     if ((mode <= 0) || (mode > BKMODE_LAST))
1652     {
1653         SetLastError(ERROR_INVALID_PARAMETER);
1654         return 0;
1655     }
1656     if (!(dc = get_dc_ptr( hdc ))) return 0;
1657
1658     ret = dc->backgroundMode;
1659     if (dc->funcs->pSetBkMode)
1660         if (!dc->funcs->pSetBkMode( dc->physDev, mode ))
1661             ret = 0;
1662     if (ret)
1663         dc->backgroundMode = mode;
1664     release_dc_ptr( dc );
1665     return ret;
1666 }
1667
1668
1669 /***********************************************************************
1670  *              GetROP2 (GDI32.@)
1671  */
1672 INT WINAPI GetROP2( HDC hdc )
1673 {
1674     INT ret = 0;
1675     DC * dc = get_dc_ptr( hdc );
1676     if (dc)
1677     {
1678         ret = dc->ROPmode;
1679         release_dc_ptr( dc );
1680     }
1681     return ret;
1682 }
1683
1684
1685 /***********************************************************************
1686  *              SetROP2 (GDI32.@)
1687  */
1688 INT WINAPI SetROP2( HDC hdc, INT mode )
1689 {
1690     INT ret;
1691     DC *dc;
1692     if ((mode < R2_BLACK) || (mode > R2_WHITE))
1693     {
1694         SetLastError(ERROR_INVALID_PARAMETER);
1695         return 0;
1696     }
1697     if (!(dc = get_dc_ptr( hdc ))) return 0;
1698     ret = dc->ROPmode;
1699     if (dc->funcs->pSetROP2)
1700         if (!dc->funcs->pSetROP2( dc->physDev, mode ))
1701             ret = 0;
1702     if (ret)
1703         dc->ROPmode = mode;
1704     release_dc_ptr( dc );
1705     return ret;
1706 }
1707
1708
1709 /***********************************************************************
1710  *              SetRelAbs (GDI32.@)
1711  */
1712 INT WINAPI SetRelAbs( HDC hdc, INT mode )
1713 {
1714     INT ret;
1715     DC *dc;
1716     if ((mode != ABSOLUTE) && (mode != RELATIVE))
1717     {
1718         SetLastError(ERROR_INVALID_PARAMETER);
1719         return 0;
1720     }
1721     if (!(dc = get_dc_ptr( hdc ))) return 0;
1722     if (dc->funcs->pSetRelAbs)
1723         ret = dc->funcs->pSetRelAbs( dc->physDev, mode );
1724     else
1725     {
1726         ret = dc->relAbsMode;
1727         dc->relAbsMode = mode;
1728     }
1729     release_dc_ptr( dc );
1730     return ret;
1731 }
1732
1733
1734 /***********************************************************************
1735  *              GetPolyFillMode (GDI32.@)
1736  */
1737 INT WINAPI GetPolyFillMode( HDC hdc )
1738 {
1739     INT ret = 0;
1740     DC * dc = get_dc_ptr( hdc );
1741     if (dc)
1742     {
1743         ret = dc->polyFillMode;
1744         release_dc_ptr( dc );
1745     }
1746     return ret;
1747 }
1748
1749
1750 /***********************************************************************
1751  *              SetPolyFillMode (GDI32.@)
1752  */
1753 INT WINAPI SetPolyFillMode( HDC hdc, INT mode )
1754 {
1755     INT ret;
1756     DC *dc;
1757     if ((mode <= 0) || (mode > POLYFILL_LAST))
1758     {
1759         SetLastError(ERROR_INVALID_PARAMETER);
1760         return 0;
1761     }
1762     if (!(dc = get_dc_ptr( hdc ))) return 0;
1763     ret = dc->polyFillMode;
1764     if (dc->funcs->pSetPolyFillMode)
1765         if (!dc->funcs->pSetPolyFillMode( dc->physDev, mode ))
1766             ret = 0;
1767     if (ret)
1768         dc->polyFillMode = mode;
1769     release_dc_ptr( dc );
1770     return ret;
1771 }
1772
1773
1774 /***********************************************************************
1775  *              GetStretchBltMode (GDI32.@)
1776  */
1777 INT WINAPI GetStretchBltMode( HDC hdc )
1778 {
1779     INT ret = 0;
1780     DC * dc = get_dc_ptr( hdc );
1781     if (dc)
1782     {
1783         ret = dc->stretchBltMode;
1784         release_dc_ptr( dc );
1785     }
1786     return ret;
1787 }
1788
1789
1790 /***********************************************************************
1791  *              SetStretchBltMode (GDI32.@)
1792  */
1793 INT WINAPI SetStretchBltMode( HDC hdc, INT mode )
1794 {
1795     INT ret;
1796     DC *dc;
1797     if ((mode <= 0) || (mode > MAXSTRETCHBLTMODE))
1798     {
1799         SetLastError(ERROR_INVALID_PARAMETER);
1800         return 0;
1801     }
1802     if (!(dc = get_dc_ptr( hdc ))) return 0;
1803     ret = dc->stretchBltMode;
1804     if (dc->funcs->pSetStretchBltMode)
1805         if (!dc->funcs->pSetStretchBltMode( dc->physDev, mode ))
1806             ret = 0;
1807     if (ret)
1808         dc->stretchBltMode = mode;
1809     release_dc_ptr( dc );
1810     return ret;
1811 }
1812
1813
1814 /***********************************************************************
1815  *              GetMapMode (GDI32.@)
1816  */
1817 INT WINAPI GetMapMode( HDC hdc )
1818 {
1819     INT ret = 0;
1820     DC * dc = get_dc_ptr( hdc );
1821     if (dc)
1822     {
1823         ret = dc->MapMode;
1824         release_dc_ptr( dc );
1825     }
1826     return ret;
1827 }
1828
1829
1830 /***********************************************************************
1831  *              GetBrushOrgEx (GDI32.@)
1832  */
1833 BOOL WINAPI GetBrushOrgEx( HDC hdc, LPPOINT pt )
1834 {
1835     DC * dc = get_dc_ptr( hdc );
1836     if (!dc) return FALSE;
1837     pt->x = dc->brushOrgX;
1838     pt->y = dc->brushOrgY;
1839     release_dc_ptr( dc );
1840     return TRUE;
1841 }
1842
1843
1844 /***********************************************************************
1845  *              GetCurrentPositionEx (GDI32.@)
1846  */
1847 BOOL WINAPI GetCurrentPositionEx( HDC hdc, LPPOINT pt )
1848 {
1849     DC * dc = get_dc_ptr( hdc );
1850     if (!dc) return FALSE;
1851     pt->x = dc->CursPosX;
1852     pt->y = dc->CursPosY;
1853     release_dc_ptr( dc );
1854     return TRUE;
1855 }
1856
1857
1858 /***********************************************************************
1859  *              GetViewportExtEx (GDI32.@)
1860  */
1861 BOOL WINAPI GetViewportExtEx( HDC hdc, LPSIZE size )
1862 {
1863     DC * dc = get_dc_ptr( hdc );
1864     if (!dc) return FALSE;
1865     size->cx = dc->vportExtX;
1866     size->cy = dc->vportExtY;
1867     release_dc_ptr( dc );
1868     return TRUE;
1869 }
1870
1871
1872 /***********************************************************************
1873  *              GetViewportOrgEx (GDI32.@)
1874  */
1875 BOOL WINAPI GetViewportOrgEx( HDC hdc, LPPOINT pt )
1876 {
1877     DC * dc = get_dc_ptr( hdc );
1878     if (!dc) return FALSE;
1879     pt->x = dc->vportOrgX;
1880     pt->y = dc->vportOrgY;
1881     release_dc_ptr( dc );
1882     return TRUE;
1883 }
1884
1885
1886 /***********************************************************************
1887  *              GetWindowExtEx (GDI32.@)
1888  */
1889 BOOL WINAPI GetWindowExtEx( HDC hdc, LPSIZE size )
1890 {
1891     DC * dc = get_dc_ptr( hdc );
1892     if (!dc) return FALSE;
1893     size->cx = dc->wndExtX;
1894     size->cy = dc->wndExtY;
1895     release_dc_ptr( dc );
1896     return TRUE;
1897 }
1898
1899
1900 /***********************************************************************
1901  *              GetWindowOrgEx (GDI32.@)
1902  */
1903 BOOL WINAPI GetWindowOrgEx( HDC hdc, LPPOINT pt )
1904 {
1905     DC * dc = get_dc_ptr( hdc );
1906     if (!dc) return FALSE;
1907     pt->x = dc->wndOrgX;
1908     pt->y = dc->wndOrgY;
1909     release_dc_ptr( dc );
1910     return TRUE;
1911 }
1912
1913
1914 /***********************************************************************
1915  *           GetLayout    (GDI32.@)
1916  *
1917  * Gets left->right or right->left text layout flags of a dc.
1918  *
1919  */
1920 DWORD WINAPI GetLayout(HDC hdc)
1921 {
1922     DWORD layout = GDI_ERROR;
1923
1924     DC * dc = get_dc_ptr( hdc );
1925     if (dc)
1926     {
1927         layout = dc->layout;
1928         release_dc_ptr( dc );
1929     }
1930
1931     TRACE("hdc : %p, layout : %08x\n", hdc, layout);
1932
1933     return layout;
1934 }
1935
1936 /***********************************************************************
1937  *           SetLayout    (GDI32.@)
1938  *
1939  * Sets left->right or right->left text layout flags of a dc.
1940  *
1941  */
1942 DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
1943 {
1944     DWORD oldlayout = GDI_ERROR;
1945
1946     DC * dc = get_dc_ptr( hdc );
1947     if (dc)
1948     {
1949         oldlayout = dc->layout;
1950         dc->layout = layout;
1951         release_dc_ptr( dc );
1952     }
1953
1954     TRACE("hdc : %p, old layout : %08x, new layout : %08x\n", hdc, oldlayout, layout);
1955
1956     return oldlayout;
1957 }
1958
1959 /***********************************************************************
1960  *           GetDCBrushColor    (GDI32.@)
1961  *
1962  * Retrieves the current brush color for the specified device
1963  * context (DC).
1964  *
1965  */
1966 COLORREF WINAPI GetDCBrushColor(HDC hdc)
1967 {
1968     DC *dc;
1969     COLORREF dcBrushColor = CLR_INVALID;
1970
1971     TRACE("hdc(%p)\n", hdc);
1972
1973     dc = get_dc_ptr( hdc );
1974     if (dc)
1975     {
1976         dcBrushColor = dc->dcBrushColor;
1977         release_dc_ptr( dc );
1978     }
1979
1980     return dcBrushColor;
1981 }
1982
1983 /***********************************************************************
1984  *           SetDCBrushColor    (GDI32.@)
1985  *
1986  * Sets the current device context (DC) brush color to the specified
1987  * color value. If the device cannot represent the specified color
1988  * value, the color is set to the nearest physical color.
1989  *
1990  */
1991 COLORREF WINAPI SetDCBrushColor(HDC hdc, COLORREF crColor)
1992 {
1993     DC *dc;
1994     COLORREF oldClr = CLR_INVALID;
1995
1996     TRACE("hdc(%p) crColor(%08x)\n", hdc, crColor);
1997
1998     dc = get_dc_ptr( hdc );
1999     if (dc)
2000     {
2001         if (dc->funcs->pSetDCBrushColor)
2002             crColor = dc->funcs->pSetDCBrushColor( dc->physDev, crColor );
2003         else if (dc->hBrush == GetStockObject( DC_BRUSH ))
2004         {
2005             /* If DC_BRUSH is selected, update driver pen color */
2006             HBRUSH hBrush = CreateSolidBrush( crColor );
2007             dc->funcs->pSelectBrush( dc->physDev, hBrush );
2008             DeleteObject( hBrush );
2009         }
2010
2011         if (crColor != CLR_INVALID)
2012         {
2013             oldClr = dc->dcBrushColor;
2014             dc->dcBrushColor = crColor;
2015         }
2016
2017         release_dc_ptr( dc );
2018     }
2019
2020     return oldClr;
2021 }
2022
2023 /***********************************************************************
2024  *           GetDCPenColor    (GDI32.@)
2025  *
2026  * Retrieves the current pen color for the specified device
2027  * context (DC).
2028  *
2029  */
2030 COLORREF WINAPI GetDCPenColor(HDC hdc)
2031 {
2032     DC *dc;
2033     COLORREF dcPenColor = CLR_INVALID;
2034
2035     TRACE("hdc(%p)\n", hdc);
2036
2037     dc = get_dc_ptr( hdc );
2038     if (dc)
2039     {
2040         dcPenColor = dc->dcPenColor;
2041         release_dc_ptr( dc );
2042     }
2043
2044     return dcPenColor;
2045 }
2046
2047 /***********************************************************************
2048  *           SetDCPenColor    (GDI32.@)
2049  *
2050  * Sets the current device context (DC) pen color to the specified
2051  * color value. If the device cannot represent the specified color
2052  * value, the color is set to the nearest physical color.
2053  *
2054  */
2055 COLORREF WINAPI SetDCPenColor(HDC hdc, COLORREF crColor)
2056 {
2057     DC *dc;
2058     COLORREF oldClr = CLR_INVALID;
2059
2060     TRACE("hdc(%p) crColor(%08x)\n", hdc, crColor);
2061
2062     dc = get_dc_ptr( hdc );
2063     if (dc)
2064     {
2065         if (dc->funcs->pSetDCPenColor)
2066             crColor = dc->funcs->pSetDCPenColor( dc->physDev, crColor );
2067         else if (dc->hPen == GetStockObject( DC_PEN ))
2068         {
2069             /* If DC_PEN is selected, update the driver pen color */
2070             LOGPEN logpen = { PS_SOLID, { 0, 0 }, crColor };
2071             HPEN hPen = CreatePenIndirect( &logpen );
2072             dc->funcs->pSelectPen( dc->physDev, hPen );
2073             DeleteObject( hPen );
2074         }
2075
2076         if (crColor != CLR_INVALID)
2077         {
2078             oldClr = dc->dcPenColor;
2079             dc->dcPenColor = crColor;
2080         }
2081
2082         release_dc_ptr( dc );
2083     }
2084
2085     return oldClr;
2086 }
2087
2088 /***********************************************************************
2089  *           CancelDC    (GDI32.@)
2090  */
2091 BOOL WINAPI CancelDC(HDC hdc)
2092 {
2093     FIXME("stub\n");
2094     return TRUE;
2095 }
2096
2097 /*******************************************************************
2098  *      GetMiterLimit [GDI32.@]
2099  *
2100  *
2101  */
2102 BOOL WINAPI GetMiterLimit(HDC hdc, PFLOAT peLimit)
2103 {
2104     BOOL bRet = FALSE;
2105     DC *dc;
2106
2107     TRACE("(%p,%p)\n", hdc, peLimit);
2108
2109     dc = get_dc_ptr( hdc );
2110     if (dc)
2111     {
2112         if (peLimit)
2113             *peLimit = dc->miterLimit;
2114
2115         release_dc_ptr( dc );
2116         bRet = TRUE;
2117     }
2118     return bRet;
2119 }
2120
2121 /*******************************************************************
2122  *      SetMiterLimit [GDI32.@]
2123  *
2124  *
2125  */
2126 BOOL WINAPI SetMiterLimit(HDC hdc, FLOAT eNewLimit, PFLOAT peOldLimit)
2127 {
2128     BOOL bRet = FALSE;
2129     DC *dc;
2130
2131     TRACE("(%p,%f,%p)\n", hdc, eNewLimit, peOldLimit);
2132
2133     dc = get_dc_ptr( hdc );
2134     if (dc)
2135     {
2136         if (peOldLimit)
2137             *peOldLimit = dc->miterLimit;
2138         dc->miterLimit = eNewLimit;
2139         release_dc_ptr( dc );
2140         bRet = TRUE;
2141     }
2142     return bRet;
2143 }
2144
2145 /*******************************************************************
2146  *      GdiIsMetaPrintDC [GDI32.@]
2147  */
2148 BOOL WINAPI GdiIsMetaPrintDC(HDC hdc)
2149 {
2150     FIXME("%p\n", hdc);
2151     return FALSE;
2152 }
2153
2154 /*******************************************************************
2155  *      GdiIsMetaFileDC [GDI32.@]
2156  */
2157 BOOL WINAPI GdiIsMetaFileDC(HDC hdc)
2158 {
2159     TRACE("%p\n", hdc);
2160
2161     switch( GetObjectType( hdc ) )
2162     {
2163     case OBJ_METADC:
2164     case OBJ_ENHMETADC:
2165         return TRUE;
2166     }
2167     return FALSE;
2168 }
2169
2170 /*******************************************************************
2171  *      GdiIsPlayMetafileDC [GDI32.@]
2172  */
2173 BOOL WINAPI GdiIsPlayMetafileDC(HDC hdc)
2174 {
2175     FIXME("%p\n", hdc);
2176     return FALSE;
2177 }