objects/dc.c

   1 /*
   2  * GDI Device Context functions
   3  *
   4  * Copyright 1993 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include "windef.h"
  26 #include "wingdi.h"
  27 #include "winternl.h"
  28 #include "winerror.h"
  29 #include "wownt32.h"
  30 #include "wine/winuser16.h"
  31 #include "gdi.h"
  32 #include "heap.h"
  33 #include "wine/unicode.h"
  34 #include "wine/debug.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(dc);
  37
  38 static BOOL DC_DeleteObject( HGDIOBJ handle, void *obj );
  39
  40 static const struct gdi_obj_funcs dc_funcs =
  41 {
  42     NULL,             /* pSelectObject */
  43     NULL,             /* pGetObject16 */
  44     NULL,             /* pGetObjectA */
  45     NULL,             /* pGetObjectW */
  46     NULL,             /* pUnrealizeObject */
  47     DC_DeleteObject   /* pDeleteObject */
  48 };
  49
  50 /***********************************************************************
  51  *           DC_AllocDC
  52  */
  53 DC *DC_AllocDC( const DC_FUNCTIONS *funcs, WORD magic )
  54 {
  55     HDC hdc;
  56     DC *dc;
  57
  58     if (!(dc = GDI_AllocObject( sizeof(*dc), magic, (HGDIOBJ*)&hdc, &dc_funcs ))) return NULL;
  59
  60     dc->hSelf               = hdc;
  61     dc->funcs               = funcs;
  62     dc->physDev             = NULL;
  63     dc->saveLevel           = 0;
  64     dc->dwHookData          = 0;
  65     dc->hookProc            = NULL;
  66     dc->hookThunk           = NULL;
  67     dc->wndOrgX             = 0;
  68     dc->wndOrgY             = 0;
  69     dc->wndExtX             = 1;
  70     dc->wndExtY             = 1;
  71     dc->vportOrgX           = 0;
  72     dc->vportOrgY           = 0;
  73     dc->vportExtX           = 1;
  74     dc->vportExtY           = 1;
  75     dc->flags               = 0;
  76     dc->hClipRgn            = 0;
  77     dc->hVisRgn             = 0;
  78     dc->hGCClipRgn          = 0;
  79     dc->hPen                = GetStockObject( BLACK_PEN );
  80     dc->hBrush              = GetStockObject( WHITE_BRUSH );
  81     dc->hFont               = GetStockObject( SYSTEM_FONT );
  82     dc->hBitmap             = 0;
  83     dc->hDevice             = 0;
  84     dc->hPalette            = GetStockObject( DEFAULT_PALETTE );
  85     dc->gdiFont             = 0;
  86     dc->ROPmode             = R2_COPYPEN;
  87     dc->polyFillMode        = ALTERNATE;
  88     dc->stretchBltMode      = BLACKONWHITE;
  89     dc->relAbsMode          = ABSOLUTE;
  90     dc->backgroundMode      = OPAQUE;
  91     dc->backgroundColor     = RGB( 255, 255, 255 );
  92     dc->textColor           = RGB( 0, 0, 0 );
  93     dc->brushOrgX           = 0;
  94     dc->brushOrgY           = 0;
  95     dc->textAlign           = TA_LEFT | TA_TOP | TA_NOUPDATECP;
  96     dc->charExtra           = 0;
  97     dc->breakTotalExtra     = 0;
  98     dc->breakCount          = 0;
  99     dc->breakExtra          = 0;
 100     dc->breakRem            = 0;
 101     dc->totalExtent.left    = 0;
 102     dc->totalExtent.top     = 0;
 103     dc->totalExtent.right   = 0;
 104     dc->totalExtent.bottom  = 0;
 105     dc->bitsPerPixel        = 1;
 106     dc->MapMode             = MM_TEXT;
 107     dc->GraphicsMode        = GM_COMPATIBLE;
 108     dc->pAbortProc          = NULL;
 109     dc->CursPosX            = 0;
 110     dc->CursPosY            = 0;
 111     dc->ArcDirection        = AD_COUNTERCLOCKWISE;
 112     dc->xformWorld2Wnd.eM11 = 1.0f;
 113     dc->xformWorld2Wnd.eM12 = 0.0f;
 114     dc->xformWorld2Wnd.eM21 = 0.0f;
 115     dc->xformWorld2Wnd.eM22 = 1.0f;
 116     dc->xformWorld2Wnd.eDx  = 0.0f;
 117     dc->xformWorld2Wnd.eDy  = 0.0f;
 118     dc->xformWorld2Vport    = dc->xformWorld2Wnd;
 119     dc->xformVport2World    = dc->xformWorld2Wnd;
 120     dc->vport2WorldValid    = TRUE;
 121     PATH_InitGdiPath(&dc->path);
 122     return dc;
 123 }
 124
 125
 126
 127 /***********************************************************************
 128  *           DC_GetDCPtr
 129  */
 130 DC *DC_GetDCPtr( HDC hdc )
 131 {
 132     GDIOBJHDR *ptr = GDI_GetObjPtr( hdc, MAGIC_DONTCARE );
 133     if (!ptr) return NULL;
 134     if ((GDIMAGIC(ptr->wMagic) == DC_MAGIC) ||
 135         (GDIMAGIC(ptr->wMagic) == MEMORY_DC_MAGIC) ||
 136         (GDIMAGIC(ptr->wMagic) == METAFILE_DC_MAGIC) ||
 137         (GDIMAGIC(ptr->wMagic) == ENHMETAFILE_DC_MAGIC))
 138         return (DC *)ptr;
 139     GDI_ReleaseObj( hdc );
 140     SetLastError( ERROR_INVALID_HANDLE );
 141     return NULL;
 142 }
 143
 144 /***********************************************************************
 145  *           DC_GetDCUpdate
 146  *
 147  * Retrieve a DC ptr while making sure the visRgn is updated.
 148  * This function may call up to USER so the GDI lock should _not_
 149  * be held when calling it.
 150  */
 151 DC *DC_GetDCUpdate( HDC hdc )
 152 {
 153     DC *dc = DC_GetDCPtr( hdc );
 154     if (!dc) return NULL;
 155     while (dc->flags & DC_DIRTY)
 156     {
 157         DCHOOKPROC proc = dc->hookThunk;
 158         dc->flags &= ~DC_DIRTY;
 159         if (proc)
 160         {
 161             DWORD data = dc->dwHookData;
 162             GDI_ReleaseObj( hdc );
 163             proc( HDC_16(hdc), DCHC_INVALIDVISRGN, data, 0 );
 164             if (!(dc = DC_GetDCPtr( hdc ))) break;
 165             /* otherwise restart the loop in case it became dirty again in the meantime */
 166         }
 167     }
 168     return dc;
 169 }
 170
 171
 172 /***********************************************************************
 173  *           DC_DeleteObject
 174  */
 175 static BOOL DC_DeleteObject( HGDIOBJ handle, void *obj )
 176 {
 177     GDI_ReleaseObj( handle );
 178     return DeleteDC( handle );
 179 }
 180
 181
 182 /***********************************************************************
 183  *           DC_InitDC
 184  *
 185  * Setup device-specific DC values for a newly created DC.
 186  */
 187 void DC_InitDC( DC* dc )
 188 {
 189     if (dc->funcs->pRealizeDefaultPalette) dc->funcs->pRealizeDefaultPalette( dc->physDev );
 190     SetTextColor( dc->hSelf, dc->textColor );
 191     SetBkColor( dc->hSelf, dc->backgroundColor );
 192     SelectObject( dc->hSelf, dc->hPen );
 193     SelectObject( dc->hSelf, dc->hBrush );
 194     SelectObject( dc->hSelf, dc->hFont );
 195     CLIPPING_UpdateGCRegion( dc );
 196 }
 197
 198
 199 /***********************************************************************
 200  *           DC_InvertXform
 201  *
 202  * Computes the inverse of the transformation xformSrc and stores it to
 203  * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
 204  * is singular.
 205  */
 206 static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
 207 {
 208     FLOAT determinant;
 209
 210     determinant = xformSrc->eM11*xformSrc->eM22 -
 211         xformSrc->eM12*xformSrc->eM21;
 212     if (determinant > -1e-12 && determinant < 1e-12)
 213         return FALSE;
 214
 215     xformDest->eM11 =  xformSrc->eM22 / determinant;
 216     xformDest->eM12 = -xformSrc->eM12 / determinant;
 217     xformDest->eM21 = -xformSrc->eM21 / determinant;
 218     xformDest->eM22 =  xformSrc->eM11 / determinant;
 219     xformDest->eDx  = -xformSrc->eDx * xformDest->eM11 -
 220                        xformSrc->eDy * xformDest->eM21;
 221     xformDest->eDy  = -xformSrc->eDx * xformDest->eM12 -
 222                        xformSrc->eDy * xformDest->eM22;
 223
 224     return TRUE;
 225 }
 226
 227
 228 /***********************************************************************
 229  *           DC_UpdateXforms
 230  *
 231  * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
 232  * fields of the specified DC by creating a transformation that
 233  * represents the current mapping mode and combining it with the DC's
 234  * world transform. This function should be called whenever the
 235  * parameters associated with the mapping mode (window and viewport
 236  * extents and origins) or the world transform change.
 237  */
 238 void DC_UpdateXforms( DC *dc )
 239 {
 240     XFORM xformWnd2Vport;
 241     FLOAT scaleX, scaleY;
 242
 243     /* Construct a transformation to do the window-to-viewport conversion */
 244     scaleX = (FLOAT)dc->vportExtX / (FLOAT)dc->wndExtX;
 245     scaleY = (FLOAT)dc->vportExtY / (FLOAT)dc->wndExtY;
 246     xformWnd2Vport.eM11 = scaleX;
 247     xformWnd2Vport.eM12 = 0.0;
 248     xformWnd2Vport.eM21 = 0.0;
 249     xformWnd2Vport.eM22 = scaleY;
 250     xformWnd2Vport.eDx  = (FLOAT)dc->vportOrgX -
 251         scaleX * (FLOAT)dc->wndOrgX;
 252     xformWnd2Vport.eDy  = (FLOAT)dc->vportOrgY -
 253         scaleY * (FLOAT)dc->wndOrgY;
 254
 255     /* Combine with the world transformation */
 256     CombineTransform( &dc->xformWorld2Vport, &dc->xformWorld2Wnd,
 257         &xformWnd2Vport );
 258
 259     /* Create inverse of world-to-viewport transformation */
 260     dc->vport2WorldValid = DC_InvertXform( &dc->xformWorld2Vport,
 261         &dc->xformVport2World );
 262
 263     /* Reselect the font back into the dc so that the font size
 264        gets updated. */
 265     SelectObject(dc->hSelf, GetCurrentObject(dc->hSelf, OBJ_FONT));
 266 }
 267
 268
 269 /***********************************************************************
 270  *           GetDCState   (Not a Windows API)
 271  */
 272 HDC WINAPI GetDCState( HDC hdc )
 273 {
 274     DC * newdc, * dc;
 275     HGDIOBJ handle;
 276
 277     if (!(dc = DC_GetDCPtr( hdc ))) return 0;
 278     if (!(newdc = GDI_AllocObject( sizeof(DC), GDIMAGIC(dc->header.wMagic), &handle, &dc_funcs )))
 279     {
 280       GDI_ReleaseObj( hdc );
 281       return 0;
 282     }
 283     TRACE("(%p): returning %p\n", hdc, handle );
 284
 285     newdc->flags            = dc->flags | DC_SAVED;
 286     newdc->hPen             = dc->hPen;
 287     newdc->hBrush           = dc->hBrush;
 288     newdc->hFont            = dc->hFont;
 289     newdc->hBitmap          = dc->hBitmap;
 290     newdc->hDevice          = dc->hDevice;
 291     newdc->hPalette         = dc->hPalette;
 292     newdc->totalExtent      = dc->totalExtent;
 293     newdc->bitsPerPixel     = dc->bitsPerPixel;
 294     newdc->ROPmode          = dc->ROPmode;
 295     newdc->polyFillMode     = dc->polyFillMode;
 296     newdc->stretchBltMode   = dc->stretchBltMode;
 297     newdc->relAbsMode       = dc->relAbsMode;
 298     newdc->backgroundMode   = dc->backgroundMode;
 299     newdc->backgroundColor  = dc->backgroundColor;
 300     newdc->textColor        = dc->textColor;
 301     newdc->brushOrgX        = dc->brushOrgX;
 302     newdc->brushOrgY        = dc->brushOrgY;
 303     newdc->textAlign        = dc->textAlign;
 304     newdc->charExtra        = dc->charExtra;
 305     newdc->breakTotalExtra  = dc->breakTotalExtra;
 306     newdc->breakCount       = dc->breakCount;
 307     newdc->breakExtra       = dc->breakExtra;
 308     newdc->breakRem         = dc->breakRem;
 309     newdc->MapMode          = dc->MapMode;
 310     newdc->GraphicsMode     = dc->GraphicsMode;
 311     newdc->CursPosX         = dc->CursPosX;
 312     newdc->CursPosY         = dc->CursPosY;
 313     newdc->ArcDirection     = dc->ArcDirection;
 314     newdc->xformWorld2Wnd   = dc->xformWorld2Wnd;
 315     newdc->xformWorld2Vport = dc->xformWorld2Vport;
 316     newdc->xformVport2World = dc->xformVport2World;
 317     newdc->vport2WorldValid = dc->vport2WorldValid;
 318     newdc->wndOrgX          = dc->wndOrgX;
 319     newdc->wndOrgY          = dc->wndOrgY;
 320     newdc->wndExtX          = dc->wndExtX;
 321     newdc->wndExtY          = dc->wndExtY;
 322     newdc->vportOrgX        = dc->vportOrgX;
 323     newdc->vportOrgY        = dc->vportOrgY;
 324     newdc->vportExtX        = dc->vportExtX;
 325     newdc->vportExtY        = dc->vportExtY;
 326
 327     newdc->hSelf = (HDC)handle;
 328     newdc->saveLevel = 0;
 329
 330     PATH_InitGdiPath( &newdc->path );
 331
 332     newdc->pAbortProc = NULL;
 333     newdc->hookThunk  = NULL;
 334     newdc->hookProc   = 0;
 335
 336     /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
 337
 338     newdc->hGCClipRgn = newdc->hVisRgn = 0;
 339     if (dc->hClipRgn)
 340     {
 341         newdc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 342         CombineRgn( newdc->hClipRgn, dc->hClipRgn, 0, RGN_COPY );
 343     }
 344     else
 345         newdc->hClipRgn = 0;
 346
 347     if(dc->gdiFont) {
 348         newdc->gdiFont = dc->gdiFont;
 349     } else
 350         newdc->gdiFont = 0;
 351
 352     GDI_ReleaseObj( handle );
 353     GDI_ReleaseObj( hdc );
 354     return handle;
 355 }
 356
 357
 358 /***********************************************************************
 359  *           SetDCState   (Not a Windows API)
 360  */
 361 void WINAPI SetDCState( HDC hdc, HDC hdcs )
 362 {
 363     DC *dc, *dcs;
 364
 365     if (!(dc = DC_GetDCUpdate( hdc ))) return;
 366     if (!(dcs = DC_GetDCPtr( hdcs )))
 367     {
 368       GDI_ReleaseObj( hdc );
 369       return;
 370     }
 371     if (!dcs->flags & DC_SAVED)
 372     {
 373       GDI_ReleaseObj( hdc );
 374       GDI_ReleaseObj( hdcs );
 375       return;
 376     }
 377     TRACE("%p %p\n", hdc, hdcs );
 378
 379     dc->flags            = dcs->flags & ~(DC_SAVED | DC_DIRTY);
 380     dc->hDevice          = dcs->hDevice;
 381     dc->totalExtent      = dcs->totalExtent;
 382     dc->ROPmode          = dcs->ROPmode;
 383     dc->polyFillMode     = dcs->polyFillMode;
 384     dc->stretchBltMode   = dcs->stretchBltMode;
 385     dc->relAbsMode       = dcs->relAbsMode;
 386     dc->backgroundMode   = dcs->backgroundMode;
 387     dc->backgroundColor  = dcs->backgroundColor;
 388     dc->textColor        = dcs->textColor;
 389     dc->brushOrgX        = dcs->brushOrgX;
 390     dc->brushOrgY        = dcs->brushOrgY;
 391     dc->textAlign        = dcs->textAlign;
 392     dc->charExtra        = dcs->charExtra;
 393     dc->breakTotalExtra  = dcs->breakTotalExtra;
 394     dc->breakCount       = dcs->breakCount;
 395     dc->breakExtra       = dcs->breakExtra;
 396     dc->breakRem         = dcs->breakRem;
 397     dc->MapMode          = dcs->MapMode;
 398     dc->GraphicsMode     = dcs->GraphicsMode;
 399     dc->CursPosX         = dcs->CursPosX;
 400     dc->CursPosY         = dcs->CursPosY;
 401     dc->ArcDirection     = dcs->ArcDirection;
 402     dc->xformWorld2Wnd   = dcs->xformWorld2Wnd;
 403     dc->xformWorld2Vport = dcs->xformWorld2Vport;
 404     dc->xformVport2World = dcs->xformVport2World;
 405     dc->vport2WorldValid = dcs->vport2WorldValid;
 406
 407     dc->wndOrgX          = dcs->wndOrgX;
 408     dc->wndOrgY          = dcs->wndOrgY;
 409     dc->wndExtX          = dcs->wndExtX;
 410     dc->wndExtY          = dcs->wndExtY;
 411     dc->vportOrgX        = dcs->vportOrgX;
 412     dc->vportOrgY        = dcs->vportOrgY;
 413     dc->vportExtX        = dcs->vportExtX;
 414     dc->vportExtY        = dcs->vportExtY;
 415
 416     if (GDIMAGIC(dc->header.wMagic) != MEMORY_DC_MAGIC) dc->bitsPerPixel = dcs->bitsPerPixel;
 417
 418     if (dcs->hClipRgn)
 419     {
 420         if (!dc->hClipRgn) dc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 421         CombineRgn( dc->hClipRgn, dcs->hClipRgn, 0, RGN_COPY );
 422     }
 423     else
 424     {
 425         if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 426         dc->hClipRgn = 0;
 427     }
 428     CLIPPING_UpdateGCRegion( dc );
 429
 430     SelectObject( hdc, dcs->hBitmap );
 431     SelectObject( hdc, dcs->hBrush );
 432     SelectObject( hdc, dcs->hFont );
 433     SelectObject( hdc, dcs->hPen );
 434     SetBkColor( hdc, dcs->backgroundColor);
 435     SetTextColor( hdc, dcs->textColor);
 436     GDISelectPalette( hdc, dcs->hPalette, FALSE );
 437     GDI_ReleaseObj( hdcs );
 438     GDI_ReleaseObj( hdc );
 439 }
 440
 441
 442 /***********************************************************************
 443  *           GetDCState   (GDI.179)
 444  */
 445 HDC16 WINAPI GetDCState16( HDC16 hdc )
 446 {
 447     return HDC_16( GetDCState( HDC_32(hdc) ));
 448 }
 449
 450
 451 /***********************************************************************
 452  *           SetDCState   (GDI.180)
 453  */
 454 void WINAPI SetDCState16( HDC16 hdc, HDC16 hdcs )
 455 {
 456     SetDCState( HDC_32(hdc), HDC_32(hdcs) );
 457 }
 458
 459
 460 /***********************************************************************
 461  *           SaveDC    (GDI32.@)
 462  */
 463 INT WINAPI SaveDC( HDC hdc )
 464 {
 465     HDC hdcs;
 466     DC * dc, * dcs;
 467     INT ret;
 468
 469     dc = DC_GetDCPtr( hdc );
 470     if (!dc) return 0;
 471
 472     if(dc->funcs->pSaveDC)
 473     {
 474         ret = dc->funcs->pSaveDC( dc->physDev );
 475         GDI_ReleaseObj( hdc );
 476         return ret;
 477     }
 478
 479     if (!(hdcs = GetDCState( hdc )))
 480     {
 481       GDI_ReleaseObj( hdc );
 482       return 0;
 483     }
 484     dcs = DC_GetDCPtr( hdcs );
 485
 486     /* Copy path. The reason why path saving / restoring is in SaveDC/
 487      * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
 488      * functions are only in Win16 (which doesn't have paths) and that
 489      * SetDCState doesn't allow us to signal an error (which can happen
 490      * when copying paths).
 491      */
 492     if (!PATH_AssignGdiPath( &dcs->path, &dc->path ))
 493     {
 494         GDI_ReleaseObj( hdc );
 495         GDI_ReleaseObj( hdcs );
 496         DeleteDC( hdcs );
 497         return 0;
 498     }
 499
 500     dcs->header.hNext = dc->header.hNext;
 501     dc->header.hNext = HDC_16(hdcs);
 502     TRACE("(%p): returning %d\n", hdc, dc->saveLevel+1 );
 503     ret = ++dc->saveLevel;
 504     GDI_ReleaseObj( hdcs );
 505     GDI_ReleaseObj( hdc );
 506     return ret;
 507 }
 508
 509
 510 /***********************************************************************
 511  *           RestoreDC    (GDI32.@)
 512  */
 513 BOOL WINAPI RestoreDC( HDC hdc, INT level )
 514 {
 515     DC * dc, * dcs;
 516     BOOL success;
 517
 518     TRACE("%p %d\n", hdc, level );
 519     dc = DC_GetDCUpdate( hdc );
 520     if(!dc) return FALSE;
 521     if(dc->funcs->pRestoreDC)
 522     {
 523         success = dc->funcs->pRestoreDC( dc->physDev, level );
 524         GDI_ReleaseObj( hdc );
 525         return success;
 526     }
 527
 528     if (level == -1) level = dc->saveLevel;
 529     if ((level < 1)
 530             /* This pair of checks disagrees with MSDN "Platform SDK:
 531                Windows GDI" July 2000 which says all negative values
 532                for level will be interpreted as an instance relative
 533                to the current state.  Restricting it to just -1 does
 534                not satisfy this */
 535         || (level > dc->saveLevel))
 536     {
 537         GDI_ReleaseObj( hdc );
 538         return FALSE;
 539     }
 540
 541     success=TRUE;
 542     while (dc->saveLevel >= level)
 543     {
 544         HDC hdcs = HDC_32(dc->header.hNext);
 545         if (!(dcs = DC_GetDCPtr( hdcs )))
 546         {
 547           GDI_ReleaseObj( hdc );
 548           return FALSE;
 549         }
 550         dc->header.hNext = dcs->header.hNext;
 551         if (--dc->saveLevel < level)
 552         {
 553             SetDCState( hdc, hdcs );
 554             if (!PATH_AssignGdiPath( &dc->path, &dcs->path ))
 555                 /* FIXME: This might not be quite right, since we're
 556                  * returning FALSE but still destroying the saved DC state */
 557                 success=FALSE;
 558         }
 559         GDI_ReleaseObj( hdcs );
 560         GDI_ReleaseObj( hdc );
 561         DeleteDC( hdcs );
 562         if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
 563     }
 564     GDI_ReleaseObj( hdc );
 565     return success;
 566 }
 567
 568
 569 /***********************************************************************
 570  *           CreateDCW    (GDI32.@)
 571  */
 572 HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 573                       const DEVMODEW *initData )
 574 {
 575     HDC hdc;
 576     DC * dc;
 577     const DC_FUNCTIONS *funcs;
 578     WCHAR buf[300];
 579
 580     GDI_CheckNotLock();
 581
 582     if (!device || !DRIVER_GetDriverName( device, buf, 300 ))
 583     {
 584         if (!driver) return 0;
 585         strcpyW(buf, driver);
 586     }
 587
 588     if (!(funcs = DRIVER_load_driver( buf )))
 589     {
 590         ERR( "no driver found for %s\n", debugstr_w(buf) );
 591         return 0;
 592     }
 593     if (!(dc = DC_AllocDC( funcs, DC_MAGIC )))
 594     {
 595         DRIVER_release_driver( funcs );
 596         return 0;
 597     }
 598
 599     dc->hBitmap = GetStockObject( DEFAULT_BITMAP );
 600
 601     TRACE("(driver=%s, device=%s, output=%s): returning %p\n",
 602           debugstr_w(driver), debugstr_w(device), debugstr_w(output), dc->hSelf );
 603
 604     if (dc->funcs->pCreateDC &&
 605         !dc->funcs->pCreateDC( dc, &dc->physDev, buf, device, output, initData ))
 606     {
 607         WARN("creation aborted by device\n" );
 608         GDI_FreeObject( dc->hSelf, dc );
 609         DRIVER_release_driver( funcs );
 610         return 0;
 611     }
 612
 613     dc->totalExtent.left   = 0;
 614     dc->totalExtent.top    = 0;
 615     dc->totalExtent.right  = GetDeviceCaps( dc->hSelf, HORZRES );
 616     dc->totalExtent.bottom = GetDeviceCaps( dc->hSelf, VERTRES );
 617     dc->hVisRgn = CreateRectRgnIndirect( &dc->totalExtent );
 618
 619     DC_InitDC( dc );
 620     hdc = dc->hSelf;
 621     GDI_ReleaseObj( hdc );
 622     return hdc;
 623 }
 624
 625
 626 /***********************************************************************
 627  *           CreateDCA    (GDI32.@)
 628  */
 629 HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
 630                       const DEVMODEA *initData )
 631 {
 632     UNICODE_STRING driverW, deviceW, outputW;
 633     DEVMODEW *initDataW;
 634     HDC ret;
 635
 636     if (driver) RtlCreateUnicodeStringFromAsciiz(&driverW, driver);
 637     else driverW.Buffer = NULL;
 638
 639     if (device) RtlCreateUnicodeStringFromAsciiz(&deviceW, device);
 640     else deviceW.Buffer = NULL;
 641
 642     if (output) RtlCreateUnicodeStringFromAsciiz(&outputW, output);
 643     else outputW.Buffer = NULL;
 644
 645     if (initData) initDataW = GdiConvertToDevmodeW(initData);
 646     else initDataW = NULL;
 647
 648     ret = CreateDCW( driverW.Buffer, deviceW.Buffer, outputW.Buffer, initDataW );
 649
 650     RtlFreeUnicodeString(&driverW);
 651     RtlFreeUnicodeString(&deviceW);
 652     RtlFreeUnicodeString(&outputW);
 653     if (initDataW) HeapFree(GetProcessHeap(), 0, initDataW);
 654     return ret;
 655 }
 656
 657
 658 /***********************************************************************
 659  *           CreateICA    (GDI32.@)
 660  */
 661 HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
 662                           const DEVMODEA* initData )
 663 {
 664       /* Nothing special yet for ICs */
 665     return CreateDCA( driver, device, output, initData );
 666 }
 667
 668
 669 /***********************************************************************
 670  *           CreateICW    (GDI32.@)
 671  */
 672 HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 673                           const DEVMODEW* initData )
 674 {
 675       /* Nothing special yet for ICs */
 676     return CreateDCW( driver, device, output, initData );
 677 }
 678
 679
 680 /***********************************************************************
 681  *           CreateCompatibleDC   (GDI32.@)
 682  */
 683 HDC WINAPI CreateCompatibleDC( HDC hdc )
 684 {
 685     DC *dc, *origDC;
 686     const DC_FUNCTIONS *funcs;
 687     PHYSDEV physDev;
 688
 689     GDI_CheckNotLock();
 690
 691     if ((origDC = GDI_GetObjPtr( hdc, DC_MAGIC )))
 692     {
 693         funcs = origDC->funcs;
 694         physDev = origDC->physDev;
 695         GDI_ReleaseObj( hdc ); /* can't hold the lock while loading the driver */
 696         funcs = DRIVER_get_driver( funcs );
 697     }
 698     else
 699     {
 700         static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 701         funcs = DRIVER_load_driver( displayW );
 702         physDev = NULL;
 703     }
 704
 705     if (!funcs) return 0;
 706
 707     if (!(dc = DC_AllocDC( funcs, MEMORY_DC_MAGIC )))
 708     {
 709         DRIVER_release_driver( funcs );
 710         return 0;
 711     }
 712
 713     TRACE("(%p): returning %p\n", hdc, dc->hSelf );
 714
 715     dc->bitsPerPixel = 1;
 716     dc->hBitmap      = GetStockObject( DEFAULT_BITMAP );
 717
 718     /* Copy the driver-specific physical device info into
 719      * the new DC. The driver may use this read-only info
 720      * while creating the compatible DC below. */
 721     dc->physDev = physDev;
 722
 723     if (dc->funcs->pCreateDC &&
 724         !dc->funcs->pCreateDC( dc, &dc->physDev, NULL, NULL, NULL, NULL ))
 725     {
 726         WARN("creation aborted by device\n");
 727         GDI_FreeObject( dc->hSelf, dc );
 728         DRIVER_release_driver( funcs );
 729         return 0;
 730     }
 731
 732     dc->totalExtent.left   = 0;
 733     dc->totalExtent.top    = 0;
 734     dc->totalExtent.right  = 1;  /* default bitmap is 1x1 */
 735     dc->totalExtent.bottom = 1;
 736     dc->hVisRgn = CreateRectRgnIndirect( &dc->totalExtent );
 737
 738     DC_InitDC( dc );
 739     GDI_ReleaseObj( dc->hSelf );
 740     return dc->hSelf;
 741 }
 742
 743
 744 /***********************************************************************
 745  *           DeleteDC    (GDI32.@)
 746  */
 747 BOOL WINAPI DeleteDC( HDC hdc )
 748 {
 749     const DC_FUNCTIONS *funcs = NULL;
 750     DC * dc;
 751
 752     TRACE("%p\n", hdc );
 753
 754     GDI_CheckNotLock();
 755
 756     if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
 757
 758     /* Call hook procedure to check whether is it OK to delete this DC */
 759     if (dc->hookThunk)
 760     {
 761         DCHOOKPROC proc = dc->hookThunk;
 762         DWORD data = dc->dwHookData;
 763         GDI_ReleaseObj( hdc );
 764         if (!proc( HDC_16(hdc), DCHC_DELETEDC, data, 0 )) return FALSE;
 765         if (!(dc = DC_GetDCPtr( hdc ))) return TRUE;  /* deleted by the hook */
 766     }
 767
 768     while (dc->saveLevel)
 769     {
 770         DC * dcs;
 771         HDC hdcs = HDC_32(dc->header.hNext);
 772         if (!(dcs = DC_GetDCPtr( hdcs ))) break;
 773         dc->header.hNext = dcs->header.hNext;
 774         dc->saveLevel--;
 775         if (dcs->hClipRgn) DeleteObject( dcs->hClipRgn );
 776         if (dcs->hVisRgn) DeleteObject( dcs->hVisRgn );
 777         if (dcs->hGCClipRgn) DeleteObject( dcs->hGCClipRgn );
 778         PATH_DestroyGdiPath(&dcs->path);
 779         GDI_FreeObject( hdcs, dcs );
 780     }
 781
 782     if (!(dc->flags & DC_SAVED))
 783     {
 784         SelectObject( hdc, GetStockObject(BLACK_PEN) );
 785         SelectObject( hdc, GetStockObject(WHITE_BRUSH) );
 786         SelectObject( hdc, GetStockObject(SYSTEM_FONT) );
 787         SelectObject( hdc, GetStockObject(DEFAULT_BITMAP) );
 788         funcs = dc->funcs;
 789         if (dc->funcs->pDeleteDC) dc->funcs->pDeleteDC(dc->physDev);
 790         dc->physDev = NULL;
 791     }
 792
 793     if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 794     if (dc->hVisRgn) DeleteObject( dc->hVisRgn );
 795     if (dc->hGCClipRgn) DeleteObject( dc->hGCClipRgn );
 796     PATH_DestroyGdiPath(&dc->path);
 797
 798     GDI_FreeObject( hdc, dc );
 799     if (funcs) DRIVER_release_driver( funcs );  /* do that after releasing the GDI lock */
 800     return TRUE;
 801 }
 802
 803
 804 /***********************************************************************
 805  *           ResetDCA    (GDI32.@)
 806  */
 807 HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
 808 {
 809     DC *dc;
 810     HDC ret = hdc;
 811
 812     if ((dc = DC_GetDCPtr( hdc )))
 813     {
 814         if (dc->funcs->pResetDC) ret = dc->funcs->pResetDC( dc->physDev, devmode );
 815         GDI_ReleaseObj( hdc );
 816     }
 817     return ret;
 818 }
 819
 820
 821 /***********************************************************************
 822  *           ResetDCW    (GDI32.@)
 823  */
 824 HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
 825 {
 826     return ResetDCA(hdc, (const DEVMODEA*)devmode); /* FIXME */
 827 }
 828
 829
 830 /***********************************************************************
 831  *           GetDeviceCaps    (GDI32.@)
 832  */
 833 INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
 834 {
 835     DC *dc;
 836     INT ret = 0;
 837
 838     if ((dc = DC_GetDCPtr( hdc )))
 839     {
 840         if (dc->funcs->pGetDeviceCaps) ret = dc->funcs->pGetDeviceCaps( dc->physDev, cap );
 841         GDI_ReleaseObj( hdc );
 842     }
 843     return ret;
 844 }
 845
 846
 847 /***********************************************************************
 848  *           SetBkColor    (GDI32.@)
 849  */
 850 COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
 851 {
 852     COLORREF oldColor;
 853     DC * dc = DC_GetDCPtr( hdc );
 854
 855     if (!dc) return CLR_INVALID;
 856     oldColor = dc->backgroundColor;
 857     if (dc->funcs->pSetBkColor)
 858     {
 859         color = dc->funcs->pSetBkColor(dc->physDev, color);
 860         if (color == CLR_INVALID)  /* don't change it */
 861         {
 862             color = oldColor;
 863             oldColor = CLR_INVALID;
 864         }
 865     }
 866     dc->backgroundColor = color;
 867     GDI_ReleaseObj( hdc );
 868     return oldColor;
 869 }
 870
 871
 872 /***********************************************************************
 873  *           SetTextColor    (GDI32.@)
 874  */
 875 COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
 876 {
 877     COLORREF oldColor;
 878     DC * dc = DC_GetDCPtr( hdc );
 879
 880     if (!dc) return CLR_INVALID;
 881     oldColor = dc->textColor;
 882     if (dc->funcs->pSetTextColor)
 883     {
 884         color = dc->funcs->pSetTextColor(dc->physDev, color);
 885         if (color == CLR_INVALID)  /* don't change it */
 886         {
 887             color = oldColor;
 888             oldColor = CLR_INVALID;
 889         }
 890     }
 891     dc->textColor = color;
 892     GDI_ReleaseObj( hdc );
 893     return oldColor;
 894 }
 895
 896
 897 /***********************************************************************
 898  *           SetTextAlign    (GDI32.@)
 899  */
 900 UINT WINAPI SetTextAlign( HDC hdc, UINT align )
 901 {
 902     UINT prevAlign;
 903     DC *dc = DC_GetDCPtr( hdc );
 904     if (!dc) return 0x0;
 905     if (dc->funcs->pSetTextAlign)
 906         prevAlign = dc->funcs->pSetTextAlign(dc->physDev, align);
 907     else {
 908         prevAlign = dc->textAlign;
 909         dc->textAlign = align;
 910     }
 911     GDI_ReleaseObj( hdc );
 912     return prevAlign;
 913 }
 914
 915 /***********************************************************************
 916  *           GetDCOrgEx  (GDI32.@)
 917  */
 918 BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
 919 {
 920     DC * dc;
 921
 922     if (!lpp) return FALSE;
 923     if (!(dc = DC_GetDCPtr( hDC ))) return FALSE;
 924
 925     lpp->x = lpp->y = 0;
 926     if (dc->funcs->pGetDCOrgEx) dc->funcs->pGetDCOrgEx( dc->physDev, lpp );
 927     GDI_ReleaseObj( hDC );
 928     return TRUE;
 929 }
 930
 931
 932 /***********************************************************************
 933  *           SetDCOrg   (GDI.117)
 934  */
 935 DWORD WINAPI SetDCOrg16( HDC16 hdc16, INT16 x, INT16 y )
 936 {
 937     DWORD prevOrg = 0;
 938     HDC hdc = HDC_32( hdc16 );
 939     DC *dc = DC_GetDCPtr( hdc );
 940     if (!dc) return 0;
 941     if (dc->funcs->pSetDCOrg) prevOrg = dc->funcs->pSetDCOrg( dc->physDev, x, y );
 942     GDI_ReleaseObj( hdc );
 943     return prevOrg;
 944 }
 945
 946
 947 /***********************************************************************
 948  *           SetGraphicsMode    (GDI32.@)
 949  */
 950 INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
 951 {
 952     INT ret = 0;
 953     DC *dc = DC_GetDCPtr( hdc );
 954
 955     /* One would think that setting the graphics mode to GM_COMPATIBLE
 956      * would also reset the world transformation matrix to the unity
 957      * matrix. However, in Windows, this is not the case. This doesn't
 958      * make a lot of sense to me, but that's the way it is.
 959      */
 960     if (!dc) return 0;
 961     if ((mode > 0) && (mode <= GM_LAST))
 962     {
 963         ret = dc->GraphicsMode;
 964         dc->GraphicsMode = mode;
 965     }
 966     GDI_ReleaseObj( hdc );
 967     return ret;
 968 }
 969
 970
 971 /***********************************************************************
 972  *           SetArcDirection    (GDI32.@)
 973  */
 974 INT WINAPI SetArcDirection( HDC hdc, INT nDirection )
 975 {
 976     DC * dc;
 977     INT nOldDirection = 0;
 978
 979     if (nDirection!=AD_COUNTERCLOCKWISE && nDirection!=AD_CLOCKWISE)
 980     {
 981         SetLastError(ERROR_INVALID_PARAMETER);
 982         return 0;
 983     }
 984
 985     if ((dc = DC_GetDCPtr( hdc )))
 986     {
 987         nOldDirection = dc->ArcDirection;
 988         dc->ArcDirection = nDirection;
 989         GDI_ReleaseObj( hdc );
 990     }
 991     return nOldDirection;
 992 }
 993
 994
 995 /***********************************************************************
 996  *           GetWorldTransform    (GDI32.@)
 997  */
 998 BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
 999 {
1000     DC * dc;
1001     if (!xform) return FALSE;
1002     if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
1003     *xform = dc->xformWorld2Wnd;
1004     GDI_ReleaseObj( hdc );
1005     return TRUE;
1006 }
1007
1008
1009 /***********************************************************************
1010  *           GetTransform    (GDI32.@)
1011  */
1012 BOOL WINAPI GetTransform( HDC hdc, DWORD unknown, LPXFORM xform )
1013 {
1014     if (unknown == 0x0203) return GetWorldTransform( hdc, xform );
1015     ERR("stub: don't know what to do for code %lx\n", unknown );
1016     return FALSE;
1017 }
1018
1019
1020 /***********************************************************************
1021  *           SetWorldTransform    (GDI32.@)
1022  */
1023 BOOL WINAPI SetWorldTransform( HDC hdc, const XFORM *xform )
1024 {
1025     BOOL ret = FALSE;
1026     DC *dc = DC_GetDCPtr( hdc );
1027
1028     if (!dc) return FALSE;
1029     if (!xform) goto done;
1030
1031     /* Check that graphics mode is GM_ADVANCED */
1032     if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1033
1034     if (dc->funcs->pSetWorldTransform)
1035     {
1036         ret = dc->funcs->pSetWorldTransform(dc->physDev, xform);
1037         if (!ret) goto done;
1038     }
1039
1040     dc->xformWorld2Wnd = *xform;
1041     DC_UpdateXforms( dc );
1042     ret = TRUE;
1043  done:
1044     GDI_ReleaseObj( hdc );
1045     return ret;
1046 }
1047
1048
1049 /****************************************************************************
1050  * ModifyWorldTransform [GDI32.@]
1051  * Modifies the world transformation for a device context.
1052  *
1053  * PARAMS
1054  *    hdc   [I] Handle to device context
1055  *    xform [I] XFORM structure that will be used to modify the world
1056  *              transformation
1057  *    iMode [I] Specifies in what way to modify the world transformation
1058  *              Possible values:
1059  *              MWT_IDENTITY
1060  *                 Resets the world transformation to the identity matrix.
1061  *                 The parameter xform is ignored.
1062  *              MWT_LEFTMULTIPLY
1063  *                 Multiplies xform into the world transformation matrix from
1064  *                 the left.
1065  *              MWT_RIGHTMULTIPLY
1066  *                 Multiplies xform into the world transformation matrix from
1067  *                 the right.
1068  *
1069  * RETURNS STD
1070  */
1071 BOOL WINAPI ModifyWorldTransform( HDC hdc, const XFORM *xform,
1072     DWORD iMode )
1073 {
1074     BOOL ret = FALSE;
1075     DC *dc = DC_GetDCPtr( hdc );
1076
1077     /* Check for illegal parameters */
1078     if (!dc) return FALSE;
1079     if (!xform) goto done;
1080
1081     /* Check that graphics mode is GM_ADVANCED */
1082     if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1083
1084     if (dc->funcs->pModifyWorldTransform)
1085     {
1086         ret = dc->funcs->pModifyWorldTransform(dc->physDev, xform, iMode);
1087         if (!ret) goto done;
1088     }
1089
1090     switch (iMode)
1091     {
1092         case MWT_IDENTITY:
1093             dc->xformWorld2Wnd.eM11 = 1.0f;
1094             dc->xformWorld2Wnd.eM12 = 0.0f;
1095             dc->xformWorld2Wnd.eM21 = 0.0f;
1096             dc->xformWorld2Wnd.eM22 = 1.0f;
1097             dc->xformWorld2Wnd.eDx  = 0.0f;
1098             dc->xformWorld2Wnd.eDy  = 0.0f;
1099             break;
1100         case MWT_LEFTMULTIPLY:
1101             CombineTransform( &dc->xformWorld2Wnd, xform,
1102                 &dc->xformWorld2Wnd );
1103             break;
1104         case MWT_RIGHTMULTIPLY:
1105             CombineTransform( &dc->xformWorld2Wnd, &dc->xformWorld2Wnd,
1106                 xform );
1107             break;
1108         default:
1109             goto done;
1110     }
1111
1112     DC_UpdateXforms( dc );
1113     ret = TRUE;
1114  done:
1115     GDI_ReleaseObj( hdc );
1116     return ret;
1117 }
1118
1119
1120 /****************************************************************************
1121  * CombineTransform [GDI32.@]
1122  * Combines two transformation matrices.
1123  *
1124  * PARAMS
1125  *    xformResult [O] Stores the result of combining the two matrices
1126  *    xform1      [I] Specifies the first matrix to apply
1127  *    xform2      [I] Specifies the second matrix to apply
1128  *
1129  * REMARKS
1130  *    The same matrix can be passed in for more than one of the parameters.
1131  *
1132  * RETURNS STD
1133  */
1134 BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1135     const XFORM *xform2 )
1136 {
1137     XFORM xformTemp;
1138
1139     /* Check for illegal parameters */
1140     if (!xformResult || !xform1 || !xform2)
1141         return FALSE;
1142
1143     /* Create the result in a temporary XFORM, since xformResult may be
1144      * equal to xform1 or xform2 */
1145     xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1146                      xform1->eM12 * xform2->eM21;
1147     xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1148                      xform1->eM12 * xform2->eM22;
1149     xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1150                      xform1->eM22 * xform2->eM21;
1151     xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1152                      xform1->eM22 * xform2->eM22;
1153     xformTemp.eDx  = xform1->eDx  * xform2->eM11 +
1154                      xform1->eDy  * xform2->eM21 +
1155                      xform2->eDx;
1156     xformTemp.eDy  = xform1->eDx  * xform2->eM12 +
1157                      xform1->eDy  * xform2->eM22 +
1158                      xform2->eDy;
1159
1160     /* Copy the result to xformResult */
1161     *xformResult = xformTemp;
1162
1163     return TRUE;
1164 }
1165
1166
1167 /***********************************************************************
1168  *           SetDCHook   (GDI32.@)
1169  *
1170  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1171  */
1172 BOOL WINAPI SetDCHook( HDC hdc, DCHOOKPROC hookProc, DWORD dwHookData )
1173 {
1174     DC *dc = GDI_GetObjPtr( hdc, DC_MAGIC );
1175
1176     if (!dc) return FALSE;
1177
1178     if (!(dc->flags & DC_SAVED))
1179     {
1180         dc->dwHookData = dwHookData;
1181         dc->hookThunk = hookProc;
1182     }
1183     GDI_ReleaseObj( hdc );
1184     return TRUE;
1185 }
1186
1187
1188 /* relay function to call the 16-bit DC hook proc */
1189 static BOOL16 WINAPI call_dc_hook16( HDC16 hdc16, WORD code, DWORD data, LPARAM lParam )
1190 {
1191     WORD args[6];
1192     DWORD ret;
1193     FARPROC16 proc = NULL;
1194     HDC hdc = HDC_32( hdc16 );
1195     DC *dc = DC_GetDCPtr( hdc );
1196
1197     if (!dc) return FALSE;
1198     proc = dc->hookProc;
1199     GDI_ReleaseObj( hdc );
1200     if (!proc) return FALSE;
1201     args[5] = hdc16;
1202     args[4] = code;
1203     args[3] = HIWORD(data);
1204     args[2] = LOWORD(data);
1205     args[1] = HIWORD(lParam);
1206     args[0] = LOWORD(lParam);
1207     WOWCallback16Ex( (DWORD)proc, WCB16_PASCAL, sizeof(args), args, &ret );
1208     return LOWORD(ret);
1209 }
1210
1211 /***********************************************************************
1212  *           SetDCHook   (GDI.190)
1213  */
1214 BOOL16 WINAPI SetDCHook16( HDC16 hdc16, FARPROC16 hookProc, DWORD dwHookData )
1215 {
1216     HDC hdc = HDC_32( hdc16 );
1217     DC *dc = DC_GetDCPtr( hdc );
1218     if (!dc) return FALSE;
1219
1220     dc->hookProc = hookProc;
1221     GDI_ReleaseObj( hdc );
1222     return SetDCHook( hdc, call_dc_hook16, dwHookData );
1223 }
1224
1225
1226 /***********************************************************************
1227  *           GetDCHook   (GDI.191)
1228  */
1229 DWORD WINAPI GetDCHook16( HDC16 hdc16, FARPROC16 *phookProc )
1230 {
1231     HDC hdc = HDC_32( hdc16 );
1232     DC *dc = DC_GetDCPtr( hdc );
1233     DWORD ret;
1234
1235     if (!dc) return 0;
1236     *phookProc = dc->hookProc;
1237     ret = dc->dwHookData;
1238     GDI_ReleaseObj( hdc );
1239     return ret;
1240 }
1241
1242
1243 /***********************************************************************
1244  *           SetHookFlags   (GDI.192)
1245  */
1246 WORD WINAPI SetHookFlags16(HDC16 hdc16, WORD flags)
1247 {
1248     HDC hdc = HDC_32( hdc16 );
1249     DC *dc = DC_GetDCPtr( hdc );
1250
1251     if( dc )
1252     {
1253         WORD wRet = dc->flags & DC_DIRTY;
1254
1255         /* "Undocumented Windows" info is slightly confusing.
1256          */
1257
1258         TRACE("hDC %p, flags %04x\n",hdc,flags);
1259
1260         if( flags & DCHF_INVALIDATEVISRGN )
1261             dc->flags |= DC_DIRTY;
1262         else if( flags & DCHF_VALIDATEVISRGN || !flags )
1263             dc->flags &= ~DC_DIRTY;
1264         GDI_ReleaseObj( hdc );
1265         return wRet;
1266     }
1267     return 0;
1268 }
1269
1270 /***********************************************************************
1271  *           SetICMMode    (GDI32.@)
1272  */
1273 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1274 {
1275 /*FIXME  Asuming that ICM is always off, and cannot be turned on */
1276     if (iEnableICM == ICM_OFF) return ICM_OFF;
1277     if (iEnableICM == ICM_ON) return 0;
1278     if (iEnableICM == ICM_QUERY) return ICM_OFF;
1279     return 0;
1280 }
1281
1282 /***********************************************************************
1283  *           GetDeviceGammaRamp    (GDI32.@)
1284  */
1285 BOOL WINAPI GetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1286 {
1287     BOOL ret = FALSE;
1288     DC *dc = DC_GetDCPtr( hDC );
1289
1290     if( dc )
1291     {
1292         if (dc->funcs->pGetDeviceGammaRamp)
1293             ret = dc->funcs->pGetDeviceGammaRamp(dc->physDev, ptr);
1294         GDI_ReleaseObj( hDC );
1295     }
1296     return ret;
1297 }
1298
1299 /***********************************************************************
1300  *           SetDeviceGammaRamp    (GDI32.@)
1301  */
1302 BOOL WINAPI SetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1303 {
1304     BOOL ret = FALSE;
1305     DC *dc = DC_GetDCPtr( hDC );
1306
1307     if( dc )
1308     {
1309         if (dc->funcs->pSetDeviceGammaRamp)
1310             ret = dc->funcs->pSetDeviceGammaRamp(dc->physDev, ptr);
1311         GDI_ReleaseObj( hDC );
1312     }
1313     return ret;
1314 }
1315
1316 /***********************************************************************
1317  *           GetColorSpace    (GDI32.@)
1318  */
1319 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1320 {
1321 /*FIXME    Need to to whatever GetColorSpace actually does */
1322     return 0;
1323 }
1324
1325 /***********************************************************************
1326  *           CreateColorSpaceA    (GDI32.@)
1327  */
1328 HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
1329 {
1330   FIXME( "stub\n" );
1331   return 0;
1332 }
1333
1334 /***********************************************************************
1335  *           CreateColorSpaceW    (GDI32.@)
1336  */
1337 HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
1338 {
1339   FIXME( "stub\n" );
1340   return 0;
1341 }
1342
1343 /***********************************************************************
1344  *           DeleteColorSpace     (GDI32.@)
1345  */
1346 BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
1347 {
1348   FIXME( "stub\n" );
1349
1350   return TRUE;
1351 }
1352
1353 /***********************************************************************
1354  *           SetColorSpace     (GDI32.@)
1355  */
1356 HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
1357 {
1358   FIXME( "stub\n" );
1359
1360   return hColorSpace;
1361 }
1362
1363 /***********************************************************************
1364  *           GetBoundsRect    (GDI.194)
1365  */
1366 UINT16 WINAPI GetBoundsRect16(HDC16 hdc, LPRECT16 rect, UINT16 flags)
1367 {
1368     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1369 }
1370
1371 /***********************************************************************
1372  *           GetBoundsRect    (GDI32.@)
1373  */
1374 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1375 {
1376     FIXME("(): stub\n");
1377     return DCB_RESET;   /* bounding rectangle always empty */
1378 }
1379
1380 /***********************************************************************
1381  *           SetBoundsRect    (GDI.193)
1382  */
1383 UINT16 WINAPI SetBoundsRect16(HDC16 hdc, const RECT16* rect, UINT16 flags)
1384 {
1385     if ( (flags & DCB_ACCUMULATE) || (flags & DCB_ENABLE) )
1386         FIXME("(%04x, %p, %04x): stub\n", hdc, rect, flags );
1387
1388     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1389 }
1390
1391 /***********************************************************************
1392  *           SetBoundsRect    (GDI32.@)
1393  */
1394 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1395 {
1396     FIXME("(): stub\n");
1397     return DCB_DISABLE;   /* bounding rectangle always empty */
1398 }
1399
1400
1401 /***********************************************************************
1402  *              GetRelAbs               (GDI32.@)
1403  */
1404 INT WINAPI GetRelAbs( HDC hdc, DWORD dwIgnore )
1405 {
1406     INT ret = 0;
1407     DC *dc = DC_GetDCPtr( hdc );
1408     if (dc) ret = dc->relAbsMode;
1409     GDI_ReleaseObj( hdc );
1410     return ret;
1411 }
1412
1413 /***********************************************************************
1414  *           GetLayout    (GDI32.@)
1415  *
1416  * Gets left->right or right->left text layout flags of a dc.
1417  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1418  *
1419  */
1420 DWORD WINAPI GetLayout(HDC hdc)
1421 {
1422     FIXME("(%p): stub\n", hdc);
1423     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1424     return 0;
1425 }
1426
1427 /***********************************************************************
1428  *           SetLayout    (GDI32.@)
1429  *
1430  * Sets left->right or right->left text layout flags of a dc.
1431  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1432  *
1433  */
1434 DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
1435 {
1436     FIXME("(%p,%08lx): stub\n", hdc, layout);
1437     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1438     return 0;
1439 }
1440
1441 /***********************************************************************
1442  *           SetDCBrushColor    (GDI32.@)
1443  *
1444  * Sets the current device context (DC) brush color to the specified
1445  * color value. If the device cannot represent the specified color
1446  * value, the color is set to the nearest physical color.
1447  *
1448  */
1449 COLORREF WINAPI SetDCBrushColor(HDC hdc, COLORREF crColor)
1450 {
1451     FIXME("(%p, %08lx): stub\n", hdc, crColor);
1452     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1453     return CLR_INVALID;
1454 }
1455
1456 /***********************************************************************
1457  *           SetVirtualResolution   (GDI32.@)
1458  *
1459  * Undocumented on msdn.  Called when PowerPoint XP saves a file.
1460  */
1461 DWORD WINAPI SetVirtualResolution(HDC hdc, DWORD dw2, DWORD dw3, DWORD dw4, DWORD dw5)
1462 {
1463     FIXME("(%p %08lx %08lx %08lx %08lx): stub!\n", hdc, dw2, dw3, dw4, dw5);
1464     return FALSE;
1465 }