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, void *obj );
  43
  44 static const struct gdi_obj_funcs dc_funcs =
  45 {
  46     NULL,             /* pSelectObject */
  47     NULL,             /* pGetObject16 */
  48     NULL,             /* pGetObjectA */
  49     NULL,             /* pGetObjectW */
  50     NULL,             /* pUnrealizeObject */
  51     DC_DeleteObject   /* pDeleteObject */
  52 };
  53
  54
  55 static inline DC *get_dc_obj( HDC hdc )
  56 {
  57     DC *dc = GDI_GetObjPtr( hdc, MAGIC_DONTCARE );
  58     if (!dc) return NULL;
  59
  60     if ((GDIMAGIC(dc->header.wMagic) != DC_MAGIC) &&
  61         (GDIMAGIC(dc->header.wMagic) != MEMORY_DC_MAGIC) &&
  62         (GDIMAGIC(dc->header.wMagic) != METAFILE_DC_MAGIC) &&
  63         (GDIMAGIC(dc->header.wMagic) != ENHMETAFILE_DC_MAGIC))
  64     {
  65         GDI_ReleaseObj( hdc );
  66         SetLastError( ERROR_INVALID_HANDLE );
  67         dc = NULL;
  68     }
  69     return dc;
  70 }
  71
  72
  73 /***********************************************************************
  74  *           DC_AllocDC
  75  */
  76 DC *DC_AllocDC( const DC_FUNCTIONS *funcs, WORD magic )
  77 {
  78     HDC hdc;
  79     DC *dc;
  80
  81     if (!(dc = GDI_AllocObject( sizeof(*dc), magic, (HGDIOBJ*)&hdc, &dc_funcs ))) return NULL;
  82
  83     dc->hSelf               = hdc;
  84     dc->funcs               = funcs;
  85     dc->physDev             = NULL;
  86     dc->thread              = GetCurrentThreadId();
  87     dc->refcount            = 1;
  88     dc->dirty               = 0;
  89     dc->saveLevel           = 0;
  90     dc->saved_dc            = 0;
  91     dc->dwHookData          = 0;
  92     dc->hookProc            = NULL;
  93     dc->hookThunk           = NULL;
  94     dc->wndOrgX             = 0;
  95     dc->wndOrgY             = 0;
  96     dc->wndExtX             = 1;
  97     dc->wndExtY             = 1;
  98     dc->vportOrgX           = 0;
  99     dc->vportOrgY           = 0;
 100     dc->vportExtX           = 1;
 101     dc->vportExtY           = 1;
 102     dc->miterLimit          = 10.0f; /* 10.0 is the default, from MSDN */
 103     dc->flags               = 0;
 104     dc->layout              = 0;
 105     dc->hClipRgn            = 0;
 106     dc->hMetaRgn            = 0;
 107     dc->hMetaClipRgn        = 0;
 108     dc->hVisRgn             = 0;
 109     dc->hPen                = GetStockObject( BLACK_PEN );
 110     dc->hBrush              = GetStockObject( WHITE_BRUSH );
 111     dc->hFont               = GetStockObject( SYSTEM_FONT );
 112     dc->hBitmap             = 0;
 113     dc->hDevice             = 0;
 114     dc->hPalette            = GetStockObject( DEFAULT_PALETTE );
 115     dc->gdiFont             = 0;
 116     dc->ROPmode             = R2_COPYPEN;
 117     dc->polyFillMode        = ALTERNATE;
 118     dc->stretchBltMode      = BLACKONWHITE;
 119     dc->relAbsMode          = ABSOLUTE;
 120     dc->backgroundMode      = OPAQUE;
 121     dc->backgroundColor     = RGB( 255, 255, 255 );
 122     dc->dcBrushColor        = RGB( 255, 255, 255 );
 123     dc->dcPenColor          = RGB( 0, 0, 0 );
 124     dc->textColor           = RGB( 0, 0, 0 );
 125     dc->brushOrgX           = 0;
 126     dc->brushOrgY           = 0;
 127     dc->textAlign           = TA_LEFT | TA_TOP | TA_NOUPDATECP;
 128     dc->charExtra           = 0;
 129     dc->breakExtra          = 0;
 130     dc->breakRem            = 0;
 131     dc->MapMode             = MM_TEXT;
 132     dc->GraphicsMode        = GM_COMPATIBLE;
 133     dc->pAbortProc          = NULL;
 134     dc->CursPosX            = 0;
 135     dc->CursPosY            = 0;
 136     dc->ArcDirection        = AD_COUNTERCLOCKWISE;
 137     dc->xformWorld2Wnd.eM11 = 1.0f;
 138     dc->xformWorld2Wnd.eM12 = 0.0f;
 139     dc->xformWorld2Wnd.eM21 = 0.0f;
 140     dc->xformWorld2Wnd.eM22 = 1.0f;
 141     dc->xformWorld2Wnd.eDx  = 0.0f;
 142     dc->xformWorld2Wnd.eDy  = 0.0f;
 143     dc->xformWorld2Vport    = dc->xformWorld2Wnd;
 144     dc->xformVport2World    = dc->xformWorld2Wnd;
 145     dc->vport2WorldValid    = TRUE;
 146     dc->BoundsRect.left     = 0;
 147     dc->BoundsRect.top      = 0;
 148     dc->BoundsRect.right    = 0;
 149     dc->BoundsRect.bottom   = 0;
 150     dc->saved_visrgn        = NULL;
 151     PATH_InitGdiPath(&dc->path);
 152     return dc;
 153 }
 154
 155
 156
 157 /***********************************************************************
 158  *           DC_GetDCPtr
 159  */
 160 DC *DC_GetDCPtr( HDC hdc )
 161 {
 162     DC *dc = get_dc_obj( hdc );
 163     if (!dc) return NULL;
 164
 165     if (!InterlockedCompareExchange( &dc->refcount, 1, 0 ))
 166     {
 167         dc->thread = GetCurrentThreadId();
 168     }
 169     else if (dc->thread != GetCurrentThreadId())
 170     {
 171         GDI_ReleaseObj( hdc );
 172         SetLastError( ERROR_ACCESS_DENIED );
 173         return NULL;
 174     }
 175     else InterlockedIncrement( &dc->refcount );
 176
 177     return dc;
 178 }
 179
 180 /***********************************************************************
 181  *           DC_GetDCUpdate
 182  *
 183  * Retrieve a DC ptr while making sure the visRgn is updated.
 184  * This function may call up to USER so the GDI lock should _not_
 185  * be held when calling it.
 186  */
 187 DC *DC_GetDCUpdate( HDC hdc )
 188 {
 189     DC *dc = DC_GetDCPtr( hdc );
 190     if (!dc) return NULL;
 191     while (InterlockedExchange( &dc->dirty, 0 ))
 192     {
 193         DCHOOKPROC proc = dc->hookThunk;
 194         if (proc)
 195         {
 196             DWORD_PTR data = dc->dwHookData;
 197             DC_ReleaseDCPtr( dc );
 198             proc( hdc, DCHC_INVALIDVISRGN, data, 0 );
 199             if (!(dc = DC_GetDCPtr( hdc ))) break;
 200             /* otherwise restart the loop in case it became dirty again in the meantime */
 201         }
 202     }
 203     return dc;
 204 }
 205
 206
 207 /***********************************************************************
 208  *           DC_ReleaseDCPtr
 209  */
 210 void DC_ReleaseDCPtr( DC *dc )
 211 {
 212     release_dc_ptr( dc );
 213     GDI_ReleaseObj( dc->hSelf );
 214 }
 215
 216
 217 /***********************************************************************
 218  *           DC_FreeDCPtr
 219  */
 220 BOOL DC_FreeDCPtr( DC *dc )
 221 {
 222     assert( dc->refcount == 1 );
 223     return GDI_FreeObject( dc->hSelf, dc );
 224 }
 225
 226
 227 /***********************************************************************
 228  *           get_dc_ptr
 229  *
 230  * Retrieve a DC pointer but release the GDI lock.
 231  */
 232 DC *get_dc_ptr( HDC hdc )
 233 {
 234     DC *dc = get_dc_obj( hdc );
 235     if (!dc) return NULL;
 236
 237     if (!InterlockedCompareExchange( &dc->refcount, 1, 0 ))
 238     {
 239         dc->thread = GetCurrentThreadId();
 240     }
 241     else if (dc->thread != GetCurrentThreadId())
 242     {
 243         WARN( "dc %p belongs to thread %04x\n", hdc, dc->thread );
 244         GDI_ReleaseObj( hdc );
 245         return NULL;
 246     }
 247     else InterlockedIncrement( &dc->refcount );
 248
 249     GDI_ReleaseObj( hdc );
 250     return dc;
 251 }
 252
 253
 254 /***********************************************************************
 255  *           release_dc_ptr
 256  */
 257 void release_dc_ptr( DC *dc )
 258 {
 259     LONG ref;
 260
 261     dc->thread = 0;
 262     ref = InterlockedDecrement( &dc->refcount );
 263     assert( ref >= 0 );
 264     if (ref) dc->thread = GetCurrentThreadId();  /* we still own it */
 265 }
 266
 267
 268 /***********************************************************************
 269  *           update_dc
 270  *
 271  * Make sure the DC vis region is up to date.
 272  * This function may call up to USER so the GDI lock should _not_
 273  * be held when calling it.
 274  */
 275 void update_dc( DC *dc )
 276 {
 277     if (InterlockedExchange( &dc->dirty, 0 ) && dc->hookThunk)
 278         dc->hookThunk( dc->hSelf, DCHC_INVALIDVISRGN, dc->dwHookData, 0 );
 279 }
 280
 281
 282 /***********************************************************************
 283  *           DC_DeleteObject
 284  */
 285 static BOOL DC_DeleteObject( HGDIOBJ handle, void *obj )
 286 {
 287     GDI_ReleaseObj( handle );
 288     return DeleteDC( handle );
 289 }
 290
 291
 292 /***********************************************************************
 293  *           DC_InitDC
 294  *
 295  * Setup device-specific DC values for a newly created DC.
 296  */
 297 void DC_InitDC( DC* dc )
 298 {
 299     if (dc->funcs->pRealizeDefaultPalette) dc->funcs->pRealizeDefaultPalette( dc->physDev );
 300     SetTextColor( dc->hSelf, dc->textColor );
 301     SetBkColor( dc->hSelf, dc->backgroundColor );
 302     SelectObject( dc->hSelf, dc->hPen );
 303     SelectObject( dc->hSelf, dc->hBrush );
 304     SelectObject( dc->hSelf, dc->hFont );
 305     CLIPPING_UpdateGCRegion( dc );
 306 }
 307
 308
 309 /***********************************************************************
 310  *           DC_InvertXform
 311  *
 312  * Computes the inverse of the transformation xformSrc and stores it to
 313  * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
 314  * is singular.
 315  */
 316 static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
 317 {
 318     FLOAT determinant;
 319
 320     determinant = xformSrc->eM11*xformSrc->eM22 -
 321         xformSrc->eM12*xformSrc->eM21;
 322     if (determinant > -1e-12 && determinant < 1e-12)
 323         return FALSE;
 324
 325     xformDest->eM11 =  xformSrc->eM22 / determinant;
 326     xformDest->eM12 = -xformSrc->eM12 / determinant;
 327     xformDest->eM21 = -xformSrc->eM21 / determinant;
 328     xformDest->eM22 =  xformSrc->eM11 / determinant;
 329     xformDest->eDx  = -xformSrc->eDx * xformDest->eM11 -
 330                        xformSrc->eDy * xformDest->eM21;
 331     xformDest->eDy  = -xformSrc->eDx * xformDest->eM12 -
 332                        xformSrc->eDy * xformDest->eM22;
 333
 334     return TRUE;
 335 }
 336
 337
 338 /***********************************************************************
 339  *           DC_UpdateXforms
 340  *
 341  * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
 342  * fields of the specified DC by creating a transformation that
 343  * represents the current mapping mode and combining it with the DC's
 344  * world transform. This function should be called whenever the
 345  * parameters associated with the mapping mode (window and viewport
 346  * extents and origins) or the world transform change.
 347  */
 348 void DC_UpdateXforms( DC *dc )
 349 {
 350     XFORM xformWnd2Vport, oldworld2vport;
 351     FLOAT scaleX, scaleY;
 352
 353     /* Construct a transformation to do the window-to-viewport conversion */
 354     scaleX = (FLOAT)dc->vportExtX / (FLOAT)dc->wndExtX;
 355     scaleY = (FLOAT)dc->vportExtY / (FLOAT)dc->wndExtY;
 356     xformWnd2Vport.eM11 = scaleX;
 357     xformWnd2Vport.eM12 = 0.0;
 358     xformWnd2Vport.eM21 = 0.0;
 359     xformWnd2Vport.eM22 = scaleY;
 360     xformWnd2Vport.eDx  = (FLOAT)dc->vportOrgX -
 361         scaleX * (FLOAT)dc->wndOrgX;
 362     xformWnd2Vport.eDy  = (FLOAT)dc->vportOrgY -
 363         scaleY * (FLOAT)dc->wndOrgY;
 364
 365     oldworld2vport = dc->xformWorld2Vport;
 366     /* Combine with the world transformation */
 367     CombineTransform( &dc->xformWorld2Vport, &dc->xformWorld2Wnd,
 368         &xformWnd2Vport );
 369
 370     /* Create inverse of world-to-viewport transformation */
 371     dc->vport2WorldValid = DC_InvertXform( &dc->xformWorld2Vport,
 372         &dc->xformVport2World );
 373
 374     /* Reselect the font and pen back into the dc so that the size
 375        gets updated. */
 376     if(memcmp(&oldworld2vport, &dc->xformWorld2Vport, sizeof(oldworld2vport)))
 377     {
 378         SelectObject(dc->hSelf, GetCurrentObject(dc->hSelf, OBJ_FONT));
 379         SelectObject(dc->hSelf, GetCurrentObject(dc->hSelf, OBJ_PEN));
 380     }
 381 }
 382
 383
 384 /***********************************************************************
 385  *           GetDCState   (Not a Windows API)
 386  */
 387 HDC WINAPI GetDCState( HDC hdc )
 388 {
 389     DC * newdc, * dc;
 390     HGDIOBJ handle;
 391
 392     if (!(dc = DC_GetDCPtr( hdc ))) return 0;
 393     if (!(newdc = GDI_AllocObject( sizeof(DC), GDIMAGIC(dc->header.wMagic), &handle, &dc_funcs )))
 394     {
 395       DC_ReleaseDCPtr( dc );
 396       return 0;
 397     }
 398     TRACE("(%p): returning %p\n", hdc, handle );
 399
 400     newdc->flags            = dc->flags | DC_SAVED;
 401     newdc->layout           = dc->layout;
 402     newdc->hPen             = dc->hPen;
 403     newdc->hBrush           = dc->hBrush;
 404     newdc->hFont            = dc->hFont;
 405     newdc->hBitmap          = dc->hBitmap;
 406     newdc->hDevice          = dc->hDevice;
 407     newdc->hPalette         = dc->hPalette;
 408     newdc->ROPmode          = dc->ROPmode;
 409     newdc->polyFillMode     = dc->polyFillMode;
 410     newdc->stretchBltMode   = dc->stretchBltMode;
 411     newdc->relAbsMode       = dc->relAbsMode;
 412     newdc->backgroundMode   = dc->backgroundMode;
 413     newdc->backgroundColor  = dc->backgroundColor;
 414     newdc->textColor        = dc->textColor;
 415     newdc->dcBrushColor     = dc->dcBrushColor;
 416     newdc->dcPenColor       = dc->dcPenColor;
 417     newdc->brushOrgX        = dc->brushOrgX;
 418     newdc->brushOrgY        = dc->brushOrgY;
 419     newdc->textAlign        = dc->textAlign;
 420     newdc->charExtra        = dc->charExtra;
 421     newdc->breakExtra       = dc->breakExtra;
 422     newdc->breakRem         = dc->breakRem;
 423     newdc->MapMode          = dc->MapMode;
 424     newdc->GraphicsMode     = dc->GraphicsMode;
 425     newdc->CursPosX         = dc->CursPosX;
 426     newdc->CursPosY         = dc->CursPosY;
 427     newdc->ArcDirection     = dc->ArcDirection;
 428     newdc->xformWorld2Wnd   = dc->xformWorld2Wnd;
 429     newdc->xformWorld2Vport = dc->xformWorld2Vport;
 430     newdc->xformVport2World = dc->xformVport2World;
 431     newdc->vport2WorldValid = dc->vport2WorldValid;
 432     newdc->wndOrgX          = dc->wndOrgX;
 433     newdc->wndOrgY          = dc->wndOrgY;
 434     newdc->wndExtX          = dc->wndExtX;
 435     newdc->wndExtY          = dc->wndExtY;
 436     newdc->vportOrgX        = dc->vportOrgX;
 437     newdc->vportOrgY        = dc->vportOrgY;
 438     newdc->vportExtX        = dc->vportExtX;
 439     newdc->vportExtY        = dc->vportExtY;
 440     newdc->BoundsRect       = dc->BoundsRect;
 441
 442     newdc->hSelf = (HDC)handle;
 443     newdc->thread    = GetCurrentThreadId();
 444     newdc->refcount  = 1;
 445     newdc->saveLevel = 0;
 446     newdc->saved_dc  = 0;
 447
 448     PATH_InitGdiPath( &newdc->path );
 449
 450     newdc->pAbortProc = NULL;
 451     newdc->hookThunk  = NULL;
 452     newdc->hookProc   = 0;
 453     newdc->saved_visrgn = NULL;
 454
 455     /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
 456
 457     newdc->hVisRgn      = 0;
 458     newdc->hClipRgn     = 0;
 459     newdc->hMetaRgn     = 0;
 460     newdc->hMetaClipRgn = 0;
 461     if (dc->hClipRgn)
 462     {
 463         newdc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 464         CombineRgn( newdc->hClipRgn, dc->hClipRgn, 0, RGN_COPY );
 465     }
 466     if (dc->hMetaRgn)
 467     {
 468         newdc->hMetaRgn = CreateRectRgn( 0, 0, 0, 0 );
 469         CombineRgn( newdc->hMetaRgn, dc->hMetaRgn, 0, RGN_COPY );
 470     }
 471     /* don't bother recomputing hMetaClipRgn, we'll do that in SetDCState */
 472
 473     if(dc->gdiFont) {
 474         newdc->gdiFont = dc->gdiFont;
 475     } else
 476         newdc->gdiFont = 0;
 477
 478     DC_ReleaseDCPtr( newdc );
 479     DC_ReleaseDCPtr( dc );
 480     return handle;
 481 }
 482
 483
 484 /***********************************************************************
 485  *           SetDCState   (Not a Windows API)
 486  */
 487 void WINAPI SetDCState( HDC hdc, HDC hdcs )
 488 {
 489     DC *dc, *dcs;
 490
 491     if (!(dc = DC_GetDCUpdate( hdc ))) return;
 492     if (!(dcs = DC_GetDCPtr( hdcs )))
 493     {
 494       DC_ReleaseDCPtr( dc );
 495       return;
 496     }
 497     if (!dcs->flags & DC_SAVED)
 498     {
 499       DC_ReleaseDCPtr( dc );
 500       DC_ReleaseDCPtr( dcs );
 501       return;
 502     }
 503     TRACE("%p %p\n", hdc, hdcs );
 504
 505     dc->flags            = dcs->flags & ~DC_SAVED;
 506     dc->layout           = dcs->layout;
 507     dc->hDevice          = dcs->hDevice;
 508     dc->ROPmode          = dcs->ROPmode;
 509     dc->polyFillMode     = dcs->polyFillMode;
 510     dc->stretchBltMode   = dcs->stretchBltMode;
 511     dc->relAbsMode       = dcs->relAbsMode;
 512     dc->backgroundMode   = dcs->backgroundMode;
 513     dc->backgroundColor  = dcs->backgroundColor;
 514     dc->textColor        = dcs->textColor;
 515     dc->dcBrushColor     = dcs->dcBrushColor;
 516     dc->dcPenColor       = dcs->dcPenColor;
 517     dc->brushOrgX        = dcs->brushOrgX;
 518     dc->brushOrgY        = dcs->brushOrgY;
 519     dc->textAlign        = dcs->textAlign;
 520     dc->charExtra        = dcs->charExtra;
 521     dc->breakExtra       = dcs->breakExtra;
 522     dc->breakRem         = dcs->breakRem;
 523     dc->MapMode          = dcs->MapMode;
 524     dc->GraphicsMode     = dcs->GraphicsMode;
 525     dc->CursPosX         = dcs->CursPosX;
 526     dc->CursPosY         = dcs->CursPosY;
 527     dc->ArcDirection     = dcs->ArcDirection;
 528     dc->xformWorld2Wnd   = dcs->xformWorld2Wnd;
 529     dc->xformWorld2Vport = dcs->xformWorld2Vport;
 530     dc->xformVport2World = dcs->xformVport2World;
 531     dc->vport2WorldValid = dcs->vport2WorldValid;
 532     dc->BoundsRect       = dcs->BoundsRect;
 533
 534     dc->wndOrgX          = dcs->wndOrgX;
 535     dc->wndOrgY          = dcs->wndOrgY;
 536     dc->wndExtX          = dcs->wndExtX;
 537     dc->wndExtY          = dcs->wndExtY;
 538     dc->vportOrgX        = dcs->vportOrgX;
 539     dc->vportOrgY        = dcs->vportOrgY;
 540     dc->vportExtX        = dcs->vportExtX;
 541     dc->vportExtY        = dcs->vportExtY;
 542
 543     if (dcs->hClipRgn)
 544     {
 545         if (!dc->hClipRgn) dc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 546         CombineRgn( dc->hClipRgn, dcs->hClipRgn, 0, RGN_COPY );
 547     }
 548     else
 549     {
 550         if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 551         dc->hClipRgn = 0;
 552     }
 553     if (dcs->hMetaRgn)
 554     {
 555         if (!dc->hMetaRgn) dc->hMetaRgn = CreateRectRgn( 0, 0, 0, 0 );
 556         CombineRgn( dc->hMetaRgn, dcs->hMetaRgn, 0, RGN_COPY );
 557     }
 558     else
 559     {
 560         if (dc->hMetaRgn) DeleteObject( dc->hMetaRgn );
 561         dc->hMetaRgn = 0;
 562     }
 563     CLIPPING_UpdateGCRegion( dc );
 564
 565     SelectObject( hdc, dcs->hBitmap );
 566     SelectObject( hdc, dcs->hBrush );
 567     SelectObject( hdc, dcs->hFont );
 568     SelectObject( hdc, dcs->hPen );
 569     SetBkColor( hdc, dcs->backgroundColor);
 570     SetTextColor( hdc, dcs->textColor);
 571     GDISelectPalette( hdc, dcs->hPalette, FALSE );
 572     DC_ReleaseDCPtr( dcs );
 573     DC_ReleaseDCPtr( dc );
 574 }
 575
 576
 577 /***********************************************************************
 578  *           GetDCState   (GDI.179)
 579  */
 580 HDC16 WINAPI GetDCState16( HDC16 hdc )
 581 {
 582     return HDC_16( GetDCState( HDC_32(hdc) ));
 583 }
 584
 585
 586 /***********************************************************************
 587  *           SetDCState   (GDI.180)
 588  */
 589 void WINAPI SetDCState16( HDC16 hdc, HDC16 hdcs )
 590 {
 591     SetDCState( HDC_32(hdc), HDC_32(hdcs) );
 592 }
 593
 594
 595 /***********************************************************************
 596  *           SaveDC    (GDI32.@)
 597  */
 598 INT WINAPI SaveDC( HDC hdc )
 599 {
 600     HDC hdcs;
 601     DC * dc, * dcs;
 602     INT ret;
 603
 604     dc = DC_GetDCPtr( hdc );
 605     if (!dc) return 0;
 606
 607     if(dc->funcs->pSaveDC)
 608     {
 609         ret = dc->funcs->pSaveDC( dc->physDev );
 610         if(ret)
 611             ret = ++dc->saveLevel;
 612         DC_ReleaseDCPtr( dc );
 613         return ret;
 614     }
 615
 616     if (!(hdcs = GetDCState( hdc )))
 617     {
 618       DC_ReleaseDCPtr( dc );
 619       return 0;
 620     }
 621     dcs = DC_GetDCPtr( hdcs );
 622
 623     /* Copy path. The reason why path saving / restoring is in SaveDC/
 624      * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
 625      * functions are only in Win16 (which doesn't have paths) and that
 626      * SetDCState doesn't allow us to signal an error (which can happen
 627      * when copying paths).
 628      */
 629     if (!PATH_AssignGdiPath( &dcs->path, &dc->path ))
 630     {
 631         DC_ReleaseDCPtr( dc );
 632         DC_ReleaseDCPtr( dcs );
 633         DeleteDC( hdcs );
 634         return 0;
 635     }
 636
 637     dcs->saved_dc = dc->saved_dc;
 638     dc->saved_dc = hdcs;
 639     TRACE("(%p): returning %d\n", hdc, dc->saveLevel+1 );
 640     ret = ++dc->saveLevel;
 641     DC_ReleaseDCPtr( dcs );
 642     DC_ReleaseDCPtr( dc );
 643     return ret;
 644 }
 645
 646
 647 /***********************************************************************
 648  *           RestoreDC    (GDI32.@)
 649  */
 650 BOOL WINAPI RestoreDC( HDC hdc, INT level )
 651 {
 652     DC * dc, * dcs;
 653     BOOL success;
 654
 655     TRACE("%p %d\n", hdc, level );
 656     dc = DC_GetDCUpdate( hdc );
 657     if(!dc) return FALSE;
 658
 659     if(abs(level) > dc->saveLevel || level == 0)
 660     {
 661         DC_ReleaseDCPtr( dc );
 662         return FALSE;
 663     }
 664
 665     if(dc->funcs->pRestoreDC)
 666     {
 667         success = dc->funcs->pRestoreDC( dc->physDev, level );
 668         if(level < 0) level = dc->saveLevel + level + 1;
 669         if(success)
 670             dc->saveLevel = level - 1;
 671         DC_ReleaseDCPtr( dc );
 672         return success;
 673     }
 674
 675     if (level < 0) level = dc->saveLevel + level + 1;
 676     success=TRUE;
 677     while (dc->saveLevel >= level)
 678     {
 679         HDC hdcs = dc->saved_dc;
 680         if (!(dcs = DC_GetDCPtr( hdcs )))
 681         {
 682           DC_ReleaseDCPtr( dc );
 683           return FALSE;
 684         }
 685         dc->saved_dc = dcs->saved_dc;
 686         dcs->saved_dc = 0;
 687         if (--dc->saveLevel < level)
 688         {
 689             SetDCState( hdc, hdcs );
 690             if (!PATH_AssignGdiPath( &dc->path, &dcs->path ))
 691                 /* FIXME: This might not be quite right, since we're
 692                  * returning FALSE but still destroying the saved DC state */
 693                 success=FALSE;
 694         }
 695         DC_ReleaseDCPtr( dcs );
 696         DC_ReleaseDCPtr( dc );
 697         DeleteDC( hdcs );
 698         if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
 699     }
 700     DC_ReleaseDCPtr( dc );
 701     return success;
 702 }
 703
 704
 705 /***********************************************************************
 706  *           CreateDCW    (GDI32.@)
 707  */
 708 HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 709                       const DEVMODEW *initData )
 710 {
 711     HDC hdc;
 712     DC * dc;
 713     const DC_FUNCTIONS *funcs;
 714     WCHAR buf[300];
 715
 716     GDI_CheckNotLock();
 717
 718     if (!device || !DRIVER_GetDriverName( device, buf, 300 ))
 719     {
 720         if (!driver)
 721         {
 722             ERR( "no device found for %s\n", debugstr_w(device) );
 723             return 0;
 724         }
 725         strcpyW(buf, driver);
 726     }
 727
 728     if (!(funcs = DRIVER_load_driver( buf )))
 729     {
 730         ERR( "no driver found for %s\n", debugstr_w(buf) );
 731         return 0;
 732     }
 733     if (!(dc = DC_AllocDC( funcs, DC_MAGIC ))) goto error;
 734     hdc = dc->hSelf;
 735
 736     dc->hBitmap = GetStockObject( DEFAULT_BITMAP );
 737     if (!(dc->hVisRgn = CreateRectRgn( 0, 0, 1, 1 ))) goto error;
 738
 739     TRACE("(driver=%s, device=%s, output=%s): returning %p\n",
 740           debugstr_w(driver), debugstr_w(device), debugstr_w(output), dc->hSelf );
 741
 742     if (dc->funcs->pCreateDC &&
 743         !dc->funcs->pCreateDC( hdc, &dc->physDev, buf, device, output, initData ))
 744     {
 745         WARN("creation aborted by device\n" );
 746         goto error;
 747     }
 748
 749     SetRectRgn( dc->hVisRgn, 0, 0,
 750                 GetDeviceCaps( hdc, DESKTOPHORZRES ), GetDeviceCaps( hdc, DESKTOPVERTRES ) );
 751
 752     DC_InitDC( dc );
 753     DC_ReleaseDCPtr( dc );
 754     return hdc;
 755
 756 error:
 757     if (dc && dc->hVisRgn) DeleteObject( dc->hVisRgn );
 758     if (dc) DC_FreeDCPtr( dc );
 759     DRIVER_release_driver( funcs );
 760     return 0;
 761 }
 762
 763
 764 /***********************************************************************
 765  *           CreateDCA    (GDI32.@)
 766  */
 767 HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
 768                       const DEVMODEA *initData )
 769 {
 770     UNICODE_STRING driverW, deviceW, outputW;
 771     DEVMODEW *initDataW;
 772     HDC ret;
 773
 774     if (driver) RtlCreateUnicodeStringFromAsciiz(&driverW, driver);
 775     else driverW.Buffer = NULL;
 776
 777     if (device) RtlCreateUnicodeStringFromAsciiz(&deviceW, device);
 778     else deviceW.Buffer = NULL;
 779
 780     if (output) RtlCreateUnicodeStringFromAsciiz(&outputW, output);
 781     else outputW.Buffer = NULL;
 782
 783     initDataW = NULL;
 784     if (initData)
 785     {
 786         /* don't convert initData for DISPLAY driver, it's not used */
 787         if (!driverW.Buffer || strcmpiW( driverW.Buffer, displayW ))
 788             initDataW = GdiConvertToDevmodeW(initData);
 789     }
 790
 791     ret = CreateDCW( driverW.Buffer, deviceW.Buffer, outputW.Buffer, initDataW );
 792
 793     RtlFreeUnicodeString(&driverW);
 794     RtlFreeUnicodeString(&deviceW);
 795     RtlFreeUnicodeString(&outputW);
 796     HeapFree(GetProcessHeap(), 0, initDataW);
 797     return ret;
 798 }
 799
 800
 801 /***********************************************************************
 802  *           CreateICA    (GDI32.@)
 803  */
 804 HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
 805                           const DEVMODEA* initData )
 806 {
 807       /* Nothing special yet for ICs */
 808     return CreateDCA( driver, device, output, initData );
 809 }
 810
 811
 812 /***********************************************************************
 813  *           CreateICW    (GDI32.@)
 814  */
 815 HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 816                           const DEVMODEW* initData )
 817 {
 818       /* Nothing special yet for ICs */
 819     return CreateDCW( driver, device, output, initData );
 820 }
 821
 822
 823 /***********************************************************************
 824  *           CreateCompatibleDC   (GDI32.@)
 825  */
 826 HDC WINAPI CreateCompatibleDC( HDC hdc )
 827 {
 828     DC *dc, *origDC;
 829     const DC_FUNCTIONS *funcs = NULL;
 830     PHYSDEV physDev = NULL;
 831
 832     GDI_CheckNotLock();
 833
 834     if ((origDC = DC_GetDCPtr( hdc )))
 835     {
 836         if (GetObjectType( hdc ) == OBJ_DC)
 837         {
 838             funcs = origDC->funcs;
 839             physDev = origDC->physDev;
 840         }
 841         DC_ReleaseDCPtr( origDC ); /* can't hold the lock while loading the driver */
 842         if (funcs) funcs = DRIVER_get_driver( funcs );
 843     }
 844
 845     if (!funcs && !(funcs = DRIVER_load_driver( displayW ))) return 0;
 846
 847     if (!(dc = DC_AllocDC( funcs, MEMORY_DC_MAGIC ))) goto error;
 848
 849     TRACE("(%p): returning %p\n", hdc, dc->hSelf );
 850
 851     dc->hBitmap = GetStockObject( DEFAULT_BITMAP );
 852     if (!(dc->hVisRgn = CreateRectRgn( 0, 0, 1, 1 ))) goto error;   /* default bitmap is 1x1 */
 853
 854     /* Copy the driver-specific physical device info into
 855      * the new DC. The driver may use this read-only info
 856      * while creating the compatible DC below. */
 857     dc->physDev = physDev;
 858
 859     if (dc->funcs->pCreateDC &&
 860         !dc->funcs->pCreateDC( dc->hSelf, &dc->physDev, NULL, NULL, NULL, NULL ))
 861     {
 862         WARN("creation aborted by device\n");
 863         goto error;
 864     }
 865
 866     DC_InitDC( dc );
 867     DC_ReleaseDCPtr( dc );
 868     return dc->hSelf;
 869
 870 error:
 871     if (dc && dc->hVisRgn) DeleteObject( dc->hVisRgn );
 872     if (dc) DC_FreeDCPtr( dc );
 873     DRIVER_release_driver( funcs );
 874     return 0;
 875 }
 876
 877
 878 /***********************************************************************
 879  *           DeleteDC    (GDI32.@)
 880  */
 881 BOOL WINAPI DeleteDC( HDC hdc )
 882 {
 883     const DC_FUNCTIONS *funcs = NULL;
 884     DC * dc;
 885
 886     TRACE("%p\n", hdc );
 887
 888     GDI_CheckNotLock();
 889
 890     if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
 891     if (dc->refcount != 1)
 892     {
 893         FIXME( "not deleting busy DC %p refcount %u\n", dc->hSelf, dc->refcount );
 894         DC_ReleaseDCPtr( dc );
 895         return FALSE;
 896     }
 897
 898     /* Call hook procedure to check whether is it OK to delete this DC */
 899     if (dc->hookThunk)
 900     {
 901         DCHOOKPROC proc = dc->hookThunk;
 902         DWORD_PTR data = dc->dwHookData;
 903         DC_ReleaseDCPtr( dc );
 904         if (!proc( hdc, DCHC_DELETEDC, data, 0 )) return FALSE;
 905         if (!(dc = DC_GetDCPtr( hdc ))) return TRUE;  /* deleted by the hook */
 906     }
 907
 908     while (dc->saveLevel)
 909     {
 910         DC * dcs;
 911         HDC hdcs = dc->saved_dc;
 912         if (!(dcs = DC_GetDCPtr( hdcs ))) break;
 913         dc->saved_dc = dcs->saved_dc;
 914         dc->saveLevel--;
 915         if (dcs->hClipRgn) DeleteObject( dcs->hClipRgn );
 916         if (dcs->hMetaRgn) DeleteObject( dcs->hMetaRgn );
 917         if (dcs->hMetaClipRgn) DeleteObject( dcs->hMetaClipRgn );
 918         if (dcs->hVisRgn) DeleteObject( dcs->hVisRgn );
 919         PATH_DestroyGdiPath(&dcs->path);
 920         DC_FreeDCPtr( dcs );
 921     }
 922
 923     if (!(dc->flags & DC_SAVED))
 924     {
 925         SelectObject( hdc, GetStockObject(BLACK_PEN) );
 926         SelectObject( hdc, GetStockObject(WHITE_BRUSH) );
 927         SelectObject( hdc, GetStockObject(SYSTEM_FONT) );
 928         SelectObject( hdc, GetStockObject(DEFAULT_BITMAP) );
 929         funcs = dc->funcs;
 930         if (dc->funcs->pDeleteDC) dc->funcs->pDeleteDC(dc->physDev);
 931         dc->physDev = NULL;
 932     }
 933
 934     while (dc->saved_visrgn)
 935     {
 936         struct saved_visrgn *next = dc->saved_visrgn->next;
 937         DeleteObject( dc->saved_visrgn->hrgn );
 938         HeapFree( GetProcessHeap(), 0, dc->saved_visrgn );
 939         dc->saved_visrgn = next;
 940     }
 941     if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 942     if (dc->hMetaRgn) DeleteObject( dc->hMetaRgn );
 943     if (dc->hMetaClipRgn) DeleteObject( dc->hMetaClipRgn );
 944     if (dc->hVisRgn) DeleteObject( dc->hVisRgn );
 945     PATH_DestroyGdiPath(&dc->path);
 946
 947     DC_FreeDCPtr( dc );
 948     if (funcs) DRIVER_release_driver( funcs );  /* do that after releasing the GDI lock */
 949     return TRUE;
 950 }
 951
 952
 953 /***********************************************************************
 954  *           ResetDCW    (GDI32.@)
 955  */
 956 HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
 957 {
 958     DC *dc;
 959     HDC ret = hdc;
 960
 961     if ((dc = DC_GetDCPtr( hdc )))
 962     {
 963         if (dc->funcs->pResetDC) ret = dc->funcs->pResetDC( dc->physDev, devmode );
 964         DC_ReleaseDCPtr( dc );
 965     }
 966     return ret;
 967 }
 968
 969
 970 /***********************************************************************
 971  *           ResetDCA    (GDI32.@)
 972  */
 973 HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
 974 {
 975     DEVMODEW *devmodeW;
 976     HDC ret;
 977
 978     if (devmode) devmodeW = GdiConvertToDevmodeW(devmode);
 979     else devmodeW = NULL;
 980
 981     ret = ResetDCW(hdc, devmodeW);
 982
 983     HeapFree(GetProcessHeap(), 0, devmodeW);
 984     return ret;
 985 }
 986
 987
 988 /***********************************************************************
 989  *           GetDeviceCaps    (GDI32.@)
 990  */
 991 INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
 992 {
 993     DC *dc;
 994     INT ret = 0;
 995
 996     if ((dc = DC_GetDCPtr( hdc )))
 997     {
 998         if (dc->funcs->pGetDeviceCaps) ret = dc->funcs->pGetDeviceCaps( dc->physDev, cap );
 999         else switch(cap)  /* return meaningful values for some entries */
1000         {
1001         case HORZRES:     ret = 640; break;
1002         case VERTRES:     ret = 480; break;
1003         case BITSPIXEL:   ret = 1; break;
1004         case PLANES:      ret = 1; break;
1005         case NUMCOLORS:   ret = 2; break;
1006         case ASPECTX:     ret = 36; break;
1007         case ASPECTY:     ret = 36; break;
1008         case ASPECTXY:    ret = 51; break;
1009         case LOGPIXELSX:  ret = 72; break;
1010         case LOGPIXELSY:  ret = 72; break;
1011         case SIZEPALETTE: ret = 2; break;
1012         }
1013         DC_ReleaseDCPtr( dc );
1014     }
1015     return ret;
1016 }
1017
1018
1019 /***********************************************************************
1020  *              GetBkColor (GDI32.@)
1021  */
1022 COLORREF WINAPI GetBkColor( HDC hdc )
1023 {
1024     COLORREF ret = 0;
1025     DC * dc = DC_GetDCPtr( hdc );
1026     if (dc)
1027     {
1028         ret = dc->backgroundColor;
1029         DC_ReleaseDCPtr( dc );
1030     }
1031     return ret;
1032 }
1033
1034
1035 /***********************************************************************
1036  *           SetBkColor    (GDI32.@)
1037  */
1038 COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
1039 {
1040     COLORREF oldColor;
1041     DC * dc = DC_GetDCPtr( hdc );
1042
1043     TRACE("hdc=%p color=0x%08x\n", hdc, color);
1044
1045     if (!dc) return CLR_INVALID;
1046     oldColor = dc->backgroundColor;
1047     if (dc->funcs->pSetBkColor)
1048     {
1049         color = dc->funcs->pSetBkColor(dc->physDev, color);
1050         if (color == CLR_INVALID)  /* don't change it */
1051         {
1052             color = oldColor;
1053             oldColor = CLR_INVALID;
1054         }
1055     }
1056     dc->backgroundColor = color;
1057     DC_ReleaseDCPtr( dc );
1058     return oldColor;
1059 }
1060
1061
1062 /***********************************************************************
1063  *              GetTextColor (GDI32.@)
1064  */
1065 COLORREF WINAPI GetTextColor( HDC hdc )
1066 {
1067     COLORREF ret = 0;
1068     DC * dc = DC_GetDCPtr( hdc );
1069     if (dc)
1070     {
1071         ret = dc->textColor;
1072         DC_ReleaseDCPtr( dc );
1073     }
1074     return ret;
1075 }
1076
1077
1078 /***********************************************************************
1079  *           SetTextColor    (GDI32.@)
1080  */
1081 COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
1082 {
1083     COLORREF oldColor;
1084     DC * dc = DC_GetDCPtr( hdc );
1085
1086     TRACE(" hdc=%p color=0x%08x\n", hdc, color);
1087
1088     if (!dc) return CLR_INVALID;
1089     oldColor = dc->textColor;
1090     if (dc->funcs->pSetTextColor)
1091     {
1092         color = dc->funcs->pSetTextColor(dc->physDev, color);
1093         if (color == CLR_INVALID)  /* don't change it */
1094         {
1095             color = oldColor;
1096             oldColor = CLR_INVALID;
1097         }
1098     }
1099     dc->textColor = color;
1100     DC_ReleaseDCPtr( dc );
1101     return oldColor;
1102 }
1103
1104
1105 /***********************************************************************
1106  *              GetTextAlign (GDI32.@)
1107  */
1108 UINT WINAPI GetTextAlign( HDC hdc )
1109 {
1110     UINT ret = 0;
1111     DC * dc = DC_GetDCPtr( hdc );
1112     if (dc)
1113     {
1114         ret = dc->textAlign;
1115         DC_ReleaseDCPtr( dc );
1116     }
1117     return ret;
1118 }
1119
1120
1121 /***********************************************************************
1122  *           SetTextAlign    (GDI32.@)
1123  */
1124 UINT WINAPI SetTextAlign( HDC hdc, UINT align )
1125 {
1126     UINT ret;
1127     DC *dc = DC_GetDCPtr( hdc );
1128
1129     TRACE("hdc=%p align=%d\n", hdc, align);
1130
1131     if (!dc) return 0x0;
1132     ret = dc->textAlign;
1133     if (dc->funcs->pSetTextAlign)
1134         if (!dc->funcs->pSetTextAlign(dc->physDev, align))
1135             ret = GDI_ERROR;
1136     if (ret != GDI_ERROR)
1137         dc->textAlign = align;
1138     DC_ReleaseDCPtr( dc );
1139     return ret;
1140 }
1141
1142 /***********************************************************************
1143  *           GetDCOrgEx  (GDI32.@)
1144  */
1145 BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
1146 {
1147     DC * dc;
1148
1149     if (!lpp) return FALSE;
1150     if (!(dc = DC_GetDCPtr( hDC ))) return FALSE;
1151
1152     lpp->x = lpp->y = 0;
1153     if (dc->funcs->pGetDCOrgEx) dc->funcs->pGetDCOrgEx( dc->physDev, lpp );
1154     DC_ReleaseDCPtr( dc );
1155     return TRUE;
1156 }
1157
1158
1159 /***********************************************************************
1160  *           SetDCOrg   (GDI.117)
1161  */
1162 DWORD WINAPI SetDCOrg16( HDC16 hdc16, INT16 x, INT16 y )
1163 {
1164     DWORD prevOrg = 0;
1165     HDC hdc = HDC_32( hdc16 );
1166     DC *dc = DC_GetDCPtr( hdc );
1167     if (!dc) return 0;
1168     if (dc->funcs->pSetDCOrg) prevOrg = dc->funcs->pSetDCOrg( dc->physDev, x, y );
1169     DC_ReleaseDCPtr( dc );
1170     return prevOrg;
1171 }
1172
1173
1174 /***********************************************************************
1175  *              GetGraphicsMode (GDI32.@)
1176  */
1177 INT WINAPI GetGraphicsMode( HDC hdc )
1178 {
1179     INT ret = 0;
1180     DC * dc = DC_GetDCPtr( hdc );
1181     if (dc)
1182     {
1183         ret = dc->GraphicsMode;
1184         DC_ReleaseDCPtr( dc );
1185     }
1186     return ret;
1187 }
1188
1189
1190 /***********************************************************************
1191  *           SetGraphicsMode    (GDI32.@)
1192  */
1193 INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
1194 {
1195     INT ret = 0;
1196     DC *dc = DC_GetDCPtr( hdc );
1197
1198     /* One would think that setting the graphics mode to GM_COMPATIBLE
1199      * would also reset the world transformation matrix to the unity
1200      * matrix. However, in Windows, this is not the case. This doesn't
1201      * make a lot of sense to me, but that's the way it is.
1202      */
1203     if (!dc) return 0;
1204     if ((mode > 0) && (mode <= GM_LAST))
1205     {
1206         ret = dc->GraphicsMode;
1207         dc->GraphicsMode = mode;
1208     }
1209     DC_ReleaseDCPtr( dc );
1210     return ret;
1211 }
1212
1213
1214 /***********************************************************************
1215  *              GetArcDirection (GDI32.@)
1216  */
1217 INT WINAPI GetArcDirection( HDC hdc )
1218 {
1219     INT ret = 0;
1220     DC * dc = DC_GetDCPtr( hdc );
1221     if (dc)
1222     {
1223         ret = dc->ArcDirection;
1224         DC_ReleaseDCPtr( dc );
1225     }
1226     return ret;
1227 }
1228
1229
1230 /***********************************************************************
1231  *           SetArcDirection    (GDI32.@)
1232  */
1233 INT WINAPI SetArcDirection( HDC hdc, INT nDirection )
1234 {
1235     DC * dc;
1236     INT nOldDirection = 0;
1237
1238     if (nDirection!=AD_COUNTERCLOCKWISE && nDirection!=AD_CLOCKWISE)
1239     {
1240         SetLastError(ERROR_INVALID_PARAMETER);
1241         return 0;
1242     }
1243
1244     if ((dc = DC_GetDCPtr( hdc )))
1245     {
1246         if (dc->funcs->pSetArcDirection)
1247         {
1248             dc->funcs->pSetArcDirection(dc->physDev, nDirection);
1249         }
1250         nOldDirection = dc->ArcDirection;
1251         dc->ArcDirection = nDirection;
1252         DC_ReleaseDCPtr( dc );
1253     }
1254     return nOldDirection;
1255 }
1256
1257
1258 /***********************************************************************
1259  *           GetWorldTransform    (GDI32.@)
1260  */
1261 BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
1262 {
1263     DC * dc;
1264     if (!xform) return FALSE;
1265     if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
1266     *xform = dc->xformWorld2Wnd;
1267     DC_ReleaseDCPtr( dc );
1268     return TRUE;
1269 }
1270
1271
1272 /***********************************************************************
1273  *           GetTransform    (GDI32.@)
1274  */
1275 BOOL WINAPI GetTransform( HDC hdc, DWORD unknown, LPXFORM xform )
1276 {
1277     if (unknown == 0x0203) return GetWorldTransform( hdc, xform );
1278     FIXME("stub: don't know what to do for code %x\n", unknown );
1279     return FALSE;
1280 }
1281
1282
1283 /***********************************************************************
1284  *           SetWorldTransform    (GDI32.@)
1285  */
1286 BOOL WINAPI SetWorldTransform( HDC hdc, const XFORM *xform )
1287 {
1288     BOOL ret = FALSE;
1289     DC *dc = DC_GetDCPtr( hdc );
1290
1291     if (!dc) return FALSE;
1292     if (!xform) goto done;
1293
1294     /* Check that graphics mode is GM_ADVANCED */
1295     if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1296
1297     if (dc->funcs->pSetWorldTransform)
1298     {
1299         ret = dc->funcs->pSetWorldTransform(dc->physDev, xform);
1300         if (!ret) goto done;
1301     }
1302
1303     dc->xformWorld2Wnd = *xform;
1304     DC_UpdateXforms( dc );
1305     ret = TRUE;
1306  done:
1307     DC_ReleaseDCPtr( dc );
1308     return ret;
1309 }
1310
1311
1312 /****************************************************************************
1313  * ModifyWorldTransform [GDI32.@]
1314  * Modifies the world transformation for a device context.
1315  *
1316  * PARAMS
1317  *    hdc   [I] Handle to device context
1318  *    xform [I] XFORM structure that will be used to modify the world
1319  *              transformation
1320  *    iMode [I] Specifies in what way to modify the world transformation
1321  *              Possible values:
1322  *              MWT_IDENTITY
1323  *                 Resets the world transformation to the identity matrix.
1324  *                 The parameter xform is ignored.
1325  *              MWT_LEFTMULTIPLY
1326  *                 Multiplies xform into the world transformation matrix from
1327  *                 the left.
1328  *              MWT_RIGHTMULTIPLY
1329  *                 Multiplies xform into the world transformation matrix from
1330  *                 the right.
1331  *
1332  * RETURNS
1333  *  Success: TRUE.
1334  *  Failure: FALSE. Use GetLastError() to determine the cause.
1335  */
1336 BOOL WINAPI ModifyWorldTransform( HDC hdc, const XFORM *xform,
1337     DWORD iMode )
1338 {
1339     BOOL ret = FALSE;
1340     DC *dc = DC_GetDCPtr( hdc );
1341
1342     /* Check for illegal parameters */
1343     if (!dc) return FALSE;
1344     if (!xform && iMode != MWT_IDENTITY) goto done;
1345
1346     /* Check that graphics mode is GM_ADVANCED */
1347     if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1348
1349     if (dc->funcs->pModifyWorldTransform)
1350     {
1351         ret = dc->funcs->pModifyWorldTransform(dc->physDev, xform, iMode);
1352         if (!ret) goto done;
1353     }
1354
1355     switch (iMode)
1356     {
1357         case MWT_IDENTITY:
1358             dc->xformWorld2Wnd.eM11 = 1.0f;
1359             dc->xformWorld2Wnd.eM12 = 0.0f;
1360             dc->xformWorld2Wnd.eM21 = 0.0f;
1361             dc->xformWorld2Wnd.eM22 = 1.0f;
1362             dc->xformWorld2Wnd.eDx  = 0.0f;
1363             dc->xformWorld2Wnd.eDy  = 0.0f;
1364             break;
1365         case MWT_LEFTMULTIPLY:
1366             CombineTransform( &dc->xformWorld2Wnd, xform,
1367                 &dc->xformWorld2Wnd );
1368             break;
1369         case MWT_RIGHTMULTIPLY:
1370             CombineTransform( &dc->xformWorld2Wnd, &dc->xformWorld2Wnd,
1371                 xform );
1372             break;
1373         default:
1374             goto done;
1375     }
1376
1377     DC_UpdateXforms( dc );
1378     ret = TRUE;
1379  done:
1380     DC_ReleaseDCPtr( dc );
1381     return ret;
1382 }
1383
1384
1385 /****************************************************************************
1386  * CombineTransform [GDI32.@]
1387  * Combines two transformation matrices.
1388  *
1389  * PARAMS
1390  *    xformResult [O] Stores the result of combining the two matrices
1391  *    xform1      [I] Specifies the first matrix to apply
1392  *    xform2      [I] Specifies the second matrix to apply
1393  *
1394  * REMARKS
1395  *    The same matrix can be passed in for more than one of the parameters.
1396  *
1397  * RETURNS
1398  *  Success: TRUE.
1399  *  Failure: FALSE. Use GetLastError() to determine the cause.
1400  */
1401 BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1402     const XFORM *xform2 )
1403 {
1404     XFORM xformTemp;
1405
1406     /* Check for illegal parameters */
1407     if (!xformResult || !xform1 || !xform2)
1408         return FALSE;
1409
1410     /* Create the result in a temporary XFORM, since xformResult may be
1411      * equal to xform1 or xform2 */
1412     xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1413                      xform1->eM12 * xform2->eM21;
1414     xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1415                      xform1->eM12 * xform2->eM22;
1416     xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1417                      xform1->eM22 * xform2->eM21;
1418     xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1419                      xform1->eM22 * xform2->eM22;
1420     xformTemp.eDx  = xform1->eDx  * xform2->eM11 +
1421                      xform1->eDy  * xform2->eM21 +
1422                      xform2->eDx;
1423     xformTemp.eDy  = xform1->eDx  * xform2->eM12 +
1424                      xform1->eDy  * xform2->eM22 +
1425                      xform2->eDy;
1426
1427     /* Copy the result to xformResult */
1428     *xformResult = xformTemp;
1429
1430     return TRUE;
1431 }
1432
1433
1434 /***********************************************************************
1435  *           SetDCHook   (GDI32.@)
1436  *
1437  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1438  */
1439 BOOL WINAPI SetDCHook( HDC hdc, DCHOOKPROC hookProc, DWORD_PTR dwHookData )
1440 {
1441     DC *dc = DC_GetDCPtr( hdc );
1442
1443     if (!dc) return FALSE;
1444
1445     if (!(dc->flags & DC_SAVED))
1446     {
1447         dc->dwHookData = dwHookData;
1448         dc->hookThunk = hookProc;
1449     }
1450     DC_ReleaseDCPtr( dc );
1451     return TRUE;
1452 }
1453
1454
1455 /* relay function to call the 16-bit DC hook proc */
1456 static BOOL WINAPI call_dc_hook16( HDC hdc, WORD code, DWORD_PTR data, LPARAM lParam )
1457 {
1458     WORD args[6];
1459     DWORD ret;
1460     FARPROC16 proc = NULL;
1461     DC *dc = DC_GetDCPtr( hdc );
1462
1463     if (!dc) return FALSE;
1464     proc = dc->hookProc;
1465     DC_ReleaseDCPtr( dc );
1466     if (!proc) return FALSE;
1467     args[5] = HDC_16(hdc);
1468     args[4] = code;
1469     args[3] = HIWORD(data);
1470     args[2] = LOWORD(data);
1471     args[1] = HIWORD(lParam);
1472     args[0] = LOWORD(lParam);
1473     WOWCallback16Ex( (DWORD)proc, WCB16_PASCAL, sizeof(args), args, &ret );
1474     return LOWORD(ret);
1475 }
1476
1477 /***********************************************************************
1478  *           SetDCHook   (GDI.190)
1479  */
1480 BOOL16 WINAPI SetDCHook16( HDC16 hdc16, FARPROC16 hookProc, DWORD dwHookData )
1481 {
1482     HDC hdc = HDC_32( hdc16 );
1483     DC *dc = DC_GetDCPtr( hdc );
1484     if (!dc) return FALSE;
1485
1486     dc->hookProc = hookProc;
1487     DC_ReleaseDCPtr( dc );
1488     return SetDCHook( hdc, call_dc_hook16, dwHookData );
1489 }
1490
1491
1492 /***********************************************************************
1493  *           GetDCHook   (GDI.191)
1494  */
1495 DWORD WINAPI GetDCHook16( HDC16 hdc16, FARPROC16 *phookProc )
1496 {
1497     HDC hdc = HDC_32( hdc16 );
1498     DC *dc = DC_GetDCPtr( hdc );
1499     DWORD ret;
1500
1501     if (!dc) return 0;
1502     *phookProc = dc->hookProc;
1503     ret = dc->dwHookData;
1504     DC_ReleaseDCPtr( dc );
1505     return ret;
1506 }
1507
1508
1509 /***********************************************************************
1510  *           SetHookFlags   (GDI.192)
1511  */
1512 WORD WINAPI SetHookFlags16(HDC16 hdc16, WORD flags)
1513 {
1514     HDC hdc = HDC_32( hdc16 );
1515     DC *dc = get_dc_obj( hdc );  /* not get_dc_ptr, this needs to work from any thread */
1516     LONG ret = 0;
1517
1518     if (!dc) return 0;
1519
1520     /* "Undocumented Windows" info is slightly confusing. */
1521
1522     TRACE("hDC %p, flags %04x\n",hdc,flags);
1523
1524     if (flags & DCHF_INVALIDATEVISRGN)
1525         ret = InterlockedExchange( &dc->dirty, 1 );
1526     else if (flags & DCHF_VALIDATEVISRGN || !flags)
1527         ret = InterlockedExchange( &dc->dirty, 0 );
1528
1529     GDI_ReleaseObj( dc );
1530     return ret;
1531 }
1532
1533 /***********************************************************************
1534  *           SetICMMode    (GDI32.@)
1535  */
1536 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1537 {
1538 /*FIXME  Asuming that ICM is always off, and cannot be turned on */
1539     if (iEnableICM == ICM_OFF) return ICM_OFF;
1540     if (iEnableICM == ICM_ON) return 0;
1541     if (iEnableICM == ICM_QUERY) return ICM_OFF;
1542     return 0;
1543 }
1544
1545 /***********************************************************************
1546  *           GetDeviceGammaRamp    (GDI32.@)
1547  */
1548 BOOL WINAPI GetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1549 {
1550     BOOL ret = FALSE;
1551     DC *dc = DC_GetDCPtr( hDC );
1552
1553     if( dc )
1554     {
1555         if (dc->funcs->pGetDeviceGammaRamp)
1556             ret = dc->funcs->pGetDeviceGammaRamp(dc->physDev, ptr);
1557         DC_ReleaseDCPtr( dc );
1558     }
1559     return ret;
1560 }
1561
1562 /***********************************************************************
1563  *           SetDeviceGammaRamp    (GDI32.@)
1564  */
1565 BOOL WINAPI SetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1566 {
1567     BOOL ret = FALSE;
1568     DC *dc = DC_GetDCPtr( hDC );
1569
1570     if( dc )
1571     {
1572         if (dc->funcs->pSetDeviceGammaRamp)
1573             ret = dc->funcs->pSetDeviceGammaRamp(dc->physDev, ptr);
1574         DC_ReleaseDCPtr( dc );
1575     }
1576     return ret;
1577 }
1578
1579 /***********************************************************************
1580  *           GetColorSpace    (GDI32.@)
1581  */
1582 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1583 {
1584 /*FIXME    Need to to whatever GetColorSpace actually does */
1585     return 0;
1586 }
1587
1588 /***********************************************************************
1589  *           CreateColorSpaceA    (GDI32.@)
1590  */
1591 HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
1592 {
1593   FIXME( "stub\n" );
1594   return 0;
1595 }
1596
1597 /***********************************************************************
1598  *           CreateColorSpaceW    (GDI32.@)
1599  */
1600 HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
1601 {
1602   FIXME( "stub\n" );
1603   return 0;
1604 }
1605
1606 /***********************************************************************
1607  *           DeleteColorSpace     (GDI32.@)
1608  */
1609 BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
1610 {
1611   FIXME( "stub\n" );
1612
1613   return TRUE;
1614 }
1615
1616 /***********************************************************************
1617  *           SetColorSpace     (GDI32.@)
1618  */
1619 HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
1620 {
1621   FIXME( "stub\n" );
1622
1623   return hColorSpace;
1624 }
1625
1626 /***********************************************************************
1627  *           GetBoundsRect    (GDI32.@)
1628  */
1629 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1630 {
1631     UINT ret;
1632     DC *dc = DC_GetDCPtr( hdc );
1633
1634     if ( !dc ) return 0;
1635
1636     if (rect) *rect = dc->BoundsRect;
1637
1638     ret = ((dc->flags & DC_BOUNDS_SET) ? DCB_SET : DCB_RESET);
1639
1640     if (flags & DCB_RESET)
1641     {
1642         dc->BoundsRect.left   = 0;
1643         dc->BoundsRect.top    = 0;
1644         dc->BoundsRect.right  = 0;
1645         dc->BoundsRect.bottom = 0;
1646         dc->flags &= ~DC_BOUNDS_SET;
1647     }
1648     DC_ReleaseDCPtr( dc );
1649     return ret;
1650 }
1651
1652
1653 /***********************************************************************
1654  *           SetBoundsRect    (GDI32.@)
1655  */
1656 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1657 {
1658     UINT ret;
1659     DC *dc;
1660
1661     if ((flags & DCB_ENABLE) && (flags & DCB_DISABLE)) return 0;
1662     if (!(dc = DC_GetDCPtr( hdc ))) return 0;
1663
1664     ret = ((dc->flags & DC_BOUNDS_ENABLE) ? DCB_ENABLE : DCB_DISABLE) |
1665           ((dc->flags & DC_BOUNDS_SET) ? DCB_SET : DCB_RESET);
1666
1667     if (flags & DCB_RESET)
1668     {
1669         dc->BoundsRect.left   = 0;
1670         dc->BoundsRect.top    = 0;
1671         dc->BoundsRect.right  = 0;
1672         dc->BoundsRect.bottom = 0;
1673         dc->flags &= ~DC_BOUNDS_SET;
1674     }
1675
1676     if ((flags & DCB_ACCUMULATE) && rect && rect->left < rect->right && rect->top < rect->bottom)
1677     {
1678         if (dc->flags & DC_BOUNDS_SET)
1679         {
1680             dc->BoundsRect.left   = min( dc->BoundsRect.left, rect->left );
1681             dc->BoundsRect.top    = min( dc->BoundsRect.top, rect->top );
1682             dc->BoundsRect.right  = max( dc->BoundsRect.right, rect->right );
1683             dc->BoundsRect.bottom = max( dc->BoundsRect.bottom, rect->bottom );
1684         }
1685         else
1686         {
1687             dc->BoundsRect = *rect;
1688             dc->flags |= DC_BOUNDS_SET;
1689         }
1690     }
1691
1692     if (flags & DCB_ENABLE) dc->flags |= DC_BOUNDS_ENABLE;
1693     if (flags & DCB_DISABLE) dc->flags &= ~DC_BOUNDS_ENABLE;
1694
1695     DC_ReleaseDCPtr( dc );
1696     return ret;
1697 }
1698
1699
1700 /***********************************************************************
1701  *              GetRelAbs               (GDI32.@)
1702  */
1703 INT WINAPI GetRelAbs( HDC hdc, DWORD dwIgnore )
1704 {
1705     INT ret = 0;
1706     DC *dc = DC_GetDCPtr( hdc );
1707     if (dc)
1708     {
1709         ret = dc->relAbsMode;
1710         DC_ReleaseDCPtr( dc );
1711     }
1712     return ret;
1713 }
1714
1715
1716
1717
1718 /***********************************************************************
1719  *              GetBkMode (GDI32.@)
1720  */
1721 INT WINAPI GetBkMode( HDC hdc )
1722 {
1723     INT ret = 0;
1724     DC * dc = DC_GetDCPtr( hdc );
1725     if (dc)
1726     {
1727         ret = dc->backgroundMode;
1728         DC_ReleaseDCPtr( dc );
1729     }
1730     return ret;
1731 }
1732
1733
1734 /***********************************************************************
1735  *              SetBkMode (GDI32.@)
1736  */
1737 INT WINAPI SetBkMode( HDC hdc, INT mode )
1738 {
1739     INT ret;
1740     DC *dc;
1741     if ((mode <= 0) || (mode > BKMODE_LAST))
1742     {
1743         SetLastError(ERROR_INVALID_PARAMETER);
1744         return 0;
1745     }
1746     if (!(dc = DC_GetDCPtr( hdc ))) return 0;
1747
1748     ret = dc->backgroundMode;
1749     if (dc->funcs->pSetBkMode)
1750         if (!dc->funcs->pSetBkMode( dc->physDev, mode ))
1751             ret = 0;
1752     if (ret)
1753         dc->backgroundMode = mode;
1754     DC_ReleaseDCPtr( dc );
1755     return ret;
1756 }
1757
1758
1759 /***********************************************************************
1760  *              GetROP2 (GDI32.@)
1761  */
1762 INT WINAPI GetROP2( HDC hdc )
1763 {
1764     INT ret = 0;
1765     DC * dc = DC_GetDCPtr( hdc );
1766     if (dc)
1767     {
1768         ret = dc->ROPmode;
1769         DC_ReleaseDCPtr( dc );
1770     }
1771     return ret;
1772 }
1773
1774
1775 /***********************************************************************
1776  *              SetROP2 (GDI32.@)
1777  */
1778 INT WINAPI SetROP2( HDC hdc, INT mode )
1779 {
1780     INT ret;
1781     DC *dc;
1782     if ((mode < R2_BLACK) || (mode > R2_WHITE))
1783     {
1784         SetLastError(ERROR_INVALID_PARAMETER);
1785         return 0;
1786     }
1787     if (!(dc = DC_GetDCPtr( hdc ))) return 0;
1788     ret = dc->ROPmode;
1789     if (dc->funcs->pSetROP2)
1790         if (!dc->funcs->pSetROP2( dc->physDev, mode ))
1791             ret = 0;
1792     if (ret)
1793         dc->ROPmode = mode;
1794     DC_ReleaseDCPtr( dc );
1795     return ret;
1796 }
1797
1798
1799 /***********************************************************************
1800  *              SetRelAbs (GDI32.@)
1801  */
1802 INT WINAPI SetRelAbs( HDC hdc, INT mode )
1803 {
1804     INT ret;
1805     DC *dc;
1806     if ((mode != ABSOLUTE) && (mode != RELATIVE))
1807     {
1808         SetLastError(ERROR_INVALID_PARAMETER);
1809         return 0;
1810     }
1811     if (!(dc = DC_GetDCPtr( hdc ))) return 0;
1812     if (dc->funcs->pSetRelAbs)
1813         ret = dc->funcs->pSetRelAbs( dc->physDev, mode );
1814     else
1815     {
1816         ret = dc->relAbsMode;
1817         dc->relAbsMode = mode;
1818     }
1819     DC_ReleaseDCPtr( dc );
1820     return ret;
1821 }
1822
1823
1824 /***********************************************************************
1825  *              GetPolyFillMode (GDI32.@)
1826  */
1827 INT WINAPI GetPolyFillMode( HDC hdc )
1828 {
1829     INT ret = 0;
1830     DC * dc = DC_GetDCPtr( hdc );
1831     if (dc)
1832     {
1833         ret = dc->polyFillMode;
1834         DC_ReleaseDCPtr( dc );
1835     }
1836     return ret;
1837 }
1838
1839
1840 /***********************************************************************
1841  *              SetPolyFillMode (GDI32.@)
1842  */
1843 INT WINAPI SetPolyFillMode( HDC hdc, INT mode )
1844 {
1845     INT ret;
1846     DC *dc;
1847     if ((mode <= 0) || (mode > POLYFILL_LAST))
1848     {
1849         SetLastError(ERROR_INVALID_PARAMETER);
1850         return 0;
1851     }
1852     if (!(dc = DC_GetDCPtr( hdc ))) return 0;
1853     ret = dc->polyFillMode;
1854     if (dc->funcs->pSetPolyFillMode)
1855         if (!dc->funcs->pSetPolyFillMode( dc->physDev, mode ))
1856             ret = 0;
1857     if (ret)
1858         dc->polyFillMode = mode;
1859     DC_ReleaseDCPtr( dc );
1860     return ret;
1861 }
1862
1863
1864 /***********************************************************************
1865  *              GetStretchBltMode (GDI32.@)
1866  */
1867 INT WINAPI GetStretchBltMode( HDC hdc )
1868 {
1869     INT ret = 0;
1870     DC * dc = DC_GetDCPtr( hdc );
1871     if (dc)
1872     {
1873         ret = dc->stretchBltMode;
1874         DC_ReleaseDCPtr( dc );
1875     }
1876     return ret;
1877 }
1878
1879
1880 /***********************************************************************
1881  *              SetStretchBltMode (GDI32.@)
1882  */
1883 INT WINAPI SetStretchBltMode( HDC hdc, INT mode )
1884 {
1885     INT ret;
1886     DC *dc;
1887     if ((mode <= 0) || (mode > MAXSTRETCHBLTMODE))
1888     {
1889         SetLastError(ERROR_INVALID_PARAMETER);
1890         return 0;
1891     }
1892     if (!(dc = DC_GetDCPtr( hdc ))) return 0;
1893     ret = dc->stretchBltMode;
1894     if (dc->funcs->pSetStretchBltMode)
1895         if (!dc->funcs->pSetStretchBltMode( dc->physDev, mode ))
1896             ret = 0;
1897     if (ret)
1898         dc->stretchBltMode = mode;
1899     DC_ReleaseDCPtr( dc );
1900     return ret;
1901 }
1902
1903
1904 /***********************************************************************
1905  *              GetMapMode (GDI32.@)
1906  */
1907 INT WINAPI GetMapMode( HDC hdc )
1908 {
1909     INT ret = 0;
1910     DC * dc = DC_GetDCPtr( hdc );
1911     if (dc)
1912     {
1913         ret = dc->MapMode;
1914         DC_ReleaseDCPtr( dc );
1915     }
1916     return ret;
1917 }
1918
1919
1920 /***********************************************************************
1921  *              GetBrushOrgEx (GDI32.@)
1922  */
1923 BOOL WINAPI GetBrushOrgEx( HDC hdc, LPPOINT pt )
1924 {
1925     DC * dc = DC_GetDCPtr( hdc );
1926     if (!dc) return FALSE;
1927     pt->x = dc->brushOrgX;
1928     pt->y = dc->brushOrgY;
1929     DC_ReleaseDCPtr( dc );
1930     return TRUE;
1931 }
1932
1933
1934 /***********************************************************************
1935  *              GetCurrentPositionEx (GDI32.@)
1936  */
1937 BOOL WINAPI GetCurrentPositionEx( HDC hdc, LPPOINT pt )
1938 {
1939     DC * dc = DC_GetDCPtr( hdc );
1940     if (!dc) return FALSE;
1941     pt->x = dc->CursPosX;
1942     pt->y = dc->CursPosY;
1943     DC_ReleaseDCPtr( dc );
1944     return TRUE;
1945 }
1946
1947
1948 /***********************************************************************
1949  *              GetViewportExtEx (GDI32.@)
1950  */
1951 BOOL WINAPI GetViewportExtEx( HDC hdc, LPSIZE size )
1952 {
1953     DC * dc = DC_GetDCPtr( hdc );
1954     if (!dc) return FALSE;
1955     size->cx = dc->vportExtX;
1956     size->cy = dc->vportExtY;
1957     DC_ReleaseDCPtr( dc );
1958     return TRUE;
1959 }
1960
1961
1962 /***********************************************************************
1963  *              GetViewportOrgEx (GDI32.@)
1964  */
1965 BOOL WINAPI GetViewportOrgEx( HDC hdc, LPPOINT pt )
1966 {
1967     DC * dc = DC_GetDCPtr( hdc );
1968     if (!dc) return FALSE;
1969     pt->x = dc->vportOrgX;
1970     pt->y = dc->vportOrgY;
1971     DC_ReleaseDCPtr( dc );
1972     return TRUE;
1973 }
1974
1975
1976 /***********************************************************************
1977  *              GetWindowExtEx (GDI32.@)
1978  */
1979 BOOL WINAPI GetWindowExtEx( HDC hdc, LPSIZE size )
1980 {
1981     DC * dc = DC_GetDCPtr( hdc );
1982     if (!dc) return FALSE;
1983     size->cx = dc->wndExtX;
1984     size->cy = dc->wndExtY;
1985     DC_ReleaseDCPtr( dc );
1986     return TRUE;
1987 }
1988
1989
1990 /***********************************************************************
1991  *              GetWindowOrgEx (GDI32.@)
1992  */
1993 BOOL WINAPI GetWindowOrgEx( HDC hdc, LPPOINT pt )
1994 {
1995     DC * dc = DC_GetDCPtr( hdc );
1996     if (!dc) return FALSE;
1997     pt->x = dc->wndOrgX;
1998     pt->y = dc->wndOrgY;
1999     DC_ReleaseDCPtr( dc );
2000     return TRUE;
2001 }
2002
2003
2004 /***********************************************************************
2005  *              InquireVisRgn   (GDI.131)
2006  */
2007 HRGN16 WINAPI InquireVisRgn16( HDC16 hdc )
2008 {
2009     HRGN16 ret = 0;
2010     DC * dc = DC_GetDCPtr( HDC_32(hdc) );
2011     if (dc)
2012     {
2013         ret = HRGN_16(dc->hVisRgn);
2014         DC_ReleaseDCPtr( dc );
2015     }
2016     return ret;
2017 }
2018
2019
2020 /***********************************************************************
2021  *              GetClipRgn (GDI.173)
2022  */
2023 HRGN16 WINAPI GetClipRgn16( HDC16 hdc )
2024 {
2025     HRGN16 ret = 0;
2026     DC * dc = DC_GetDCPtr( HDC_32(hdc) );
2027     if (dc)
2028     {
2029         ret = HRGN_16(dc->hClipRgn);
2030         DC_ReleaseDCPtr( dc );
2031     }
2032     return ret;
2033 }
2034
2035
2036 /***********************************************************************
2037  *           GetLayout    (GDI32.@)
2038  *
2039  * Gets left->right or right->left text layout flags of a dc.
2040  *
2041  */
2042 DWORD WINAPI GetLayout(HDC hdc)
2043 {
2044     DWORD layout = GDI_ERROR;
2045
2046     DC * dc = DC_GetDCPtr( hdc );
2047     if (dc)
2048     {
2049         layout = dc->layout;
2050         DC_ReleaseDCPtr( dc );
2051     }
2052
2053     TRACE("hdc : %p, layout : %08x\n", hdc, layout);
2054
2055     return layout;
2056 }
2057
2058 /***********************************************************************
2059  *           SetLayout    (GDI32.@)
2060  *
2061  * Sets left->right or right->left text layout flags of a dc.
2062  *
2063  */
2064 DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
2065 {
2066     DWORD oldlayout = GDI_ERROR;
2067
2068     DC * dc = DC_GetDCPtr( hdc );
2069     if (dc)
2070     {
2071         oldlayout = dc->layout;
2072         dc->layout = layout;
2073         DC_ReleaseDCPtr( dc );
2074     }
2075
2076     TRACE("hdc : %p, old layout : %08x, new layout : %08x\n", hdc, oldlayout, layout);
2077
2078     return oldlayout;
2079 }
2080
2081 /***********************************************************************
2082  *           GetDCBrushColor    (GDI32.@)
2083  *
2084  * Retrieves the current brush color for the specified device
2085  * context (DC).
2086  *
2087  */
2088 COLORREF WINAPI GetDCBrushColor(HDC hdc)
2089 {
2090     DC *dc;
2091     COLORREF dcBrushColor = CLR_INVALID;
2092
2093     TRACE("hdc(%p)\n", hdc);
2094
2095     dc = DC_GetDCPtr( hdc );
2096     if (dc)
2097     {
2098         dcBrushColor = dc->dcBrushColor;
2099         DC_ReleaseDCPtr( dc );
2100     }
2101
2102     return dcBrushColor;
2103 }
2104
2105 /***********************************************************************
2106  *           SetDCBrushColor    (GDI32.@)
2107  *
2108  * Sets the current device context (DC) brush color to the specified
2109  * color value. If the device cannot represent the specified color
2110  * value, the color is set to the nearest physical color.
2111  *
2112  */
2113 COLORREF WINAPI SetDCBrushColor(HDC hdc, COLORREF crColor)
2114 {
2115     DC *dc;
2116     COLORREF oldClr = CLR_INVALID;
2117
2118     TRACE("hdc(%p) crColor(%08x)\n", hdc, crColor);
2119
2120     dc = DC_GetDCPtr( hdc );
2121     if (dc)
2122     {
2123         if (dc->funcs->pSetDCBrushColor)
2124             crColor = dc->funcs->pSetDCBrushColor( dc->physDev, crColor );
2125         else if (dc->hBrush == GetStockObject( DC_BRUSH ))
2126         {
2127             /* If DC_BRUSH is selected, update driver pen color */
2128             HBRUSH hBrush = CreateSolidBrush( crColor );
2129             dc->funcs->pSelectBrush( dc->physDev, hBrush );
2130             DeleteObject( hBrush );
2131         }
2132
2133         if (crColor != CLR_INVALID)
2134         {
2135             oldClr = dc->dcBrushColor;
2136             dc->dcBrushColor = crColor;
2137         }
2138
2139         DC_ReleaseDCPtr( dc );
2140     }
2141
2142     return oldClr;
2143 }
2144
2145 /***********************************************************************
2146  *           GetDCPenColor    (GDI32.@)
2147  *
2148  * Retrieves the current pen color for the specified device
2149  * context (DC).
2150  *
2151  */
2152 COLORREF WINAPI GetDCPenColor(HDC hdc)
2153 {
2154     DC *dc;
2155     COLORREF dcPenColor = CLR_INVALID;
2156
2157     TRACE("hdc(%p)\n", hdc);
2158
2159     dc = DC_GetDCPtr( hdc );
2160     if (dc)
2161     {
2162         dcPenColor = dc->dcPenColor;
2163         DC_ReleaseDCPtr( dc );
2164     }
2165
2166     return dcPenColor;
2167 }
2168
2169 /***********************************************************************
2170  *           SetDCPenColor    (GDI32.@)
2171  *
2172  * Sets the current device context (DC) pen color to the specified
2173  * color value. If the device cannot represent the specified color
2174  * value, the color is set to the nearest physical color.
2175  *
2176  */
2177 COLORREF WINAPI SetDCPenColor(HDC hdc, COLORREF crColor)
2178 {
2179     DC *dc;
2180     COLORREF oldClr = CLR_INVALID;
2181
2182     TRACE("hdc(%p) crColor(%08x)\n", hdc, crColor);
2183
2184     dc = DC_GetDCPtr( hdc );
2185     if (dc)
2186     {
2187         if (dc->funcs->pSetDCPenColor)
2188             crColor = dc->funcs->pSetDCPenColor( dc->physDev, crColor );
2189         else if (dc->hPen == GetStockObject( DC_PEN ))
2190         {
2191             /* If DC_PEN is selected, update the driver pen color */
2192             LOGPEN logpen = { PS_SOLID, { 0, 0 }, crColor };
2193             HPEN hPen = CreatePenIndirect( &logpen );
2194             dc->funcs->pSelectPen( dc->physDev, hPen );
2195             DeleteObject( hPen );
2196         }
2197
2198         if (crColor != CLR_INVALID)
2199         {
2200             oldClr = dc->dcPenColor;
2201             dc->dcPenColor = crColor;
2202         }
2203
2204         DC_ReleaseDCPtr( dc );
2205     }
2206
2207     return oldClr;
2208 }
2209
2210 /***********************************************************************
2211  *           CancelDC    (GDI32.@)
2212  */
2213 BOOL WINAPI CancelDC(HDC hdc)
2214 {
2215     FIXME("stub\n");
2216     return TRUE;
2217 }
2218
2219 /***********************************************************************
2220  *           SetVirtualResolution   (GDI32.@)
2221  *
2222  * Undocumented on msdn.  Called when PowerPoint XP saves a file.
2223  */
2224 DWORD WINAPI SetVirtualResolution(HDC hdc, DWORD dw2, DWORD dw3, DWORD dw4, DWORD dw5)
2225 {
2226     FIXME("(%p %08x %08x %08x %08x): stub!\n", hdc, dw2, dw3, dw4, dw5);
2227     return FALSE;
2228 }
2229
2230 /*******************************************************************
2231  *      GetMiterLimit [GDI32.@]
2232  *
2233  *
2234  */
2235 BOOL WINAPI GetMiterLimit(HDC hdc, PFLOAT peLimit)
2236 {
2237     BOOL bRet = FALSE;
2238     DC *dc;
2239
2240     TRACE("(%p,%p)\n", hdc, peLimit);
2241
2242     dc = DC_GetDCPtr( hdc );
2243     if (dc)
2244     {
2245         if (peLimit)
2246             *peLimit = dc->miterLimit;
2247
2248         DC_ReleaseDCPtr( dc );
2249         bRet = TRUE;
2250     }
2251     return bRet;
2252 }
2253
2254 /*******************************************************************
2255  *      SetMiterLimit [GDI32.@]
2256  *
2257  *
2258  */
2259 BOOL WINAPI SetMiterLimit(HDC hdc, FLOAT eNewLimit, PFLOAT peOldLimit)
2260 {
2261     BOOL bRet = FALSE;
2262     DC *dc;
2263
2264     TRACE("(%p,%f,%p)\n", hdc, eNewLimit, peOldLimit);
2265
2266     dc = DC_GetDCPtr( hdc );
2267     if (dc)
2268     {
2269         if (peOldLimit)
2270             *peOldLimit = dc->miterLimit;
2271         dc->miterLimit = eNewLimit;
2272         DC_ReleaseDCPtr( dc );
2273         bRet = TRUE;
2274     }
2275     return bRet;
2276 }
2277
2278 /*******************************************************************
2279  *      GdiIsMetaPrintDC [GDI32.@]
2280  */
2281 BOOL WINAPI GdiIsMetaPrintDC(HDC hdc)
2282 {
2283     FIXME("%p\n", hdc);
2284     return FALSE;
2285 }
2286
2287 /*******************************************************************
2288  *      GdiIsMetaFileDC [GDI32.@]
2289  */
2290 BOOL WINAPI GdiIsMetaFileDC(HDC hdc)
2291 {
2292     TRACE("%p\n", hdc);
2293
2294     switch( GetObjectType( hdc ) )
2295     {
2296     case OBJ_METADC:
2297     case OBJ_ENHMETADC:
2298         return TRUE;
2299     }
2300     return FALSE;
2301 }
2302
2303 /*******************************************************************
2304  *      GdiIsPlayMetafileDC [GDI32.@]
2305  */
2306 BOOL WINAPI GdiIsPlayMetafileDC(HDC hdc)
2307 {
2308     FIXME("%p\n", hdc);
2309     return FALSE;
2310 }