objects/dc.c

   1 /*
   2  * GDI Device Context functions
   3  *
   4  * Copyright 1993 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdarg.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "wingdi.h"
  29 #include "winreg.h"
  30 #include "winternl.h"
  31 #include "winerror.h"
  32 #include "wownt32.h"
  33 #include "wine/winuser16.h"
  34 #include "gdi.h"
  35 #include "wine/unicode.h"
  36 #include "wine/debug.h"
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(dc);
  39
  40 static BOOL DC_DeleteObject( HGDIOBJ handle, void *obj );
  41
  42 static const struct gdi_obj_funcs dc_funcs =
  43 {
  44     NULL,             /* pSelectObject */
  45     NULL,             /* pGetObject16 */
  46     NULL,             /* pGetObjectA */
  47     NULL,             /* pGetObjectW */
  48     NULL,             /* pUnrealizeObject */
  49     DC_DeleteObject   /* pDeleteObject */
  50 };
  51
  52 /***********************************************************************
  53  *           DC_AllocDC
  54  */
  55 DC *DC_AllocDC( const DC_FUNCTIONS *funcs, WORD magic )
  56 {
  57     HDC hdc;
  58     DC *dc;
  59
  60     if (!(dc = GDI_AllocObject( sizeof(*dc), magic, (HGDIOBJ*)&hdc, &dc_funcs ))) return NULL;
  61
  62     dc->hSelf               = hdc;
  63     dc->funcs               = funcs;
  64     dc->physDev             = NULL;
  65     dc->saveLevel           = 0;
  66     dc->dwHookData          = 0;
  67     dc->hookProc            = NULL;
  68     dc->hookThunk           = NULL;
  69     dc->wndOrgX             = 0;
  70     dc->wndOrgY             = 0;
  71     dc->wndExtX             = 1;
  72     dc->wndExtY             = 1;
  73     dc->vportOrgX           = 0;
  74     dc->vportOrgY           = 0;
  75     dc->vportExtX           = 1;
  76     dc->vportExtY           = 1;
  77     dc->flags               = 0;
  78     dc->hClipRgn            = 0;
  79     dc->hVisRgn             = 0;
  80     dc->hGCClipRgn          = 0;
  81     dc->hPen                = GetStockObject( BLACK_PEN );
  82     dc->hBrush              = GetStockObject( WHITE_BRUSH );
  83     dc->hFont               = GetStockObject( SYSTEM_FONT );
  84     dc->hBitmap             = 0;
  85     dc->hDevice             = 0;
  86     dc->hPalette            = GetStockObject( DEFAULT_PALETTE );
  87     dc->gdiFont             = 0;
  88     dc->ROPmode             = R2_COPYPEN;
  89     dc->polyFillMode        = ALTERNATE;
  90     dc->stretchBltMode      = BLACKONWHITE;
  91     dc->relAbsMode          = ABSOLUTE;
  92     dc->backgroundMode      = OPAQUE;
  93     dc->backgroundColor     = RGB( 255, 255, 255 );
  94     dc->dcBrushColor        = RGB( 255, 255, 255 );
  95     dc->dcPenColor          = RGB( 0, 0, 0 );
  96     dc->textColor           = RGB( 0, 0, 0 );
  97     dc->brushOrgX           = 0;
  98     dc->brushOrgY           = 0;
  99     dc->textAlign           = TA_LEFT | TA_TOP | TA_NOUPDATECP;
 100     dc->charExtra           = 0;
 101     dc->breakTotalExtra     = 0;
 102     dc->breakCount          = 0;
 103     dc->breakExtra          = 0;
 104     dc->breakRem            = 0;
 105     dc->totalExtent.left    = 0;
 106     dc->totalExtent.top     = 0;
 107     dc->totalExtent.right   = 0;
 108     dc->totalExtent.bottom  = 0;
 109     dc->bitsPerPixel        = 1;
 110     dc->MapMode             = MM_TEXT;
 111     dc->GraphicsMode        = GM_COMPATIBLE;
 112     dc->pAbortProc          = NULL;
 113     dc->CursPosX            = 0;
 114     dc->CursPosY            = 0;
 115     dc->ArcDirection        = AD_COUNTERCLOCKWISE;
 116     dc->xformWorld2Wnd.eM11 = 1.0f;
 117     dc->xformWorld2Wnd.eM12 = 0.0f;
 118     dc->xformWorld2Wnd.eM21 = 0.0f;
 119     dc->xformWorld2Wnd.eM22 = 1.0f;
 120     dc->xformWorld2Wnd.eDx  = 0.0f;
 121     dc->xformWorld2Wnd.eDy  = 0.0f;
 122     dc->xformWorld2Vport    = dc->xformWorld2Wnd;
 123     dc->xformVport2World    = dc->xformWorld2Wnd;
 124     dc->vport2WorldValid    = TRUE;
 125     PATH_InitGdiPath(&dc->path);
 126     return dc;
 127 }
 128
 129
 130
 131 /***********************************************************************
 132  *           DC_GetDCPtr
 133  */
 134 DC *DC_GetDCPtr( HDC hdc )
 135 {
 136     GDIOBJHDR *ptr = GDI_GetObjPtr( hdc, MAGIC_DONTCARE );
 137     if (!ptr) return NULL;
 138     if ((GDIMAGIC(ptr->wMagic) == DC_MAGIC) ||
 139         (GDIMAGIC(ptr->wMagic) == MEMORY_DC_MAGIC) ||
 140         (GDIMAGIC(ptr->wMagic) == METAFILE_DC_MAGIC) ||
 141         (GDIMAGIC(ptr->wMagic) == ENHMETAFILE_DC_MAGIC))
 142         return (DC *)ptr;
 143     GDI_ReleaseObj( hdc );
 144     SetLastError( ERROR_INVALID_HANDLE );
 145     return NULL;
 146 }
 147
 148 /***********************************************************************
 149  *           DC_GetDCUpdate
 150  *
 151  * Retrieve a DC ptr while making sure the visRgn is updated.
 152  * This function may call up to USER so the GDI lock should _not_
 153  * be held when calling it.
 154  */
 155 DC *DC_GetDCUpdate( HDC hdc )
 156 {
 157     DC *dc = DC_GetDCPtr( hdc );
 158     if (!dc) return NULL;
 159     while (dc->flags & DC_DIRTY)
 160     {
 161         DCHOOKPROC proc = dc->hookThunk;
 162         dc->flags &= ~DC_DIRTY;
 163         if (proc)
 164         {
 165             DWORD data = dc->dwHookData;
 166             GDI_ReleaseObj( hdc );
 167             proc( HDC_16(hdc), DCHC_INVALIDVISRGN, data, 0 );
 168             if (!(dc = DC_GetDCPtr( hdc ))) break;
 169             /* otherwise restart the loop in case it became dirty again in the meantime */
 170         }
 171     }
 172     return dc;
 173 }
 174
 175
 176 /***********************************************************************
 177  *           DC_DeleteObject
 178  */
 179 static BOOL DC_DeleteObject( HGDIOBJ handle, void *obj )
 180 {
 181     GDI_ReleaseObj( handle );
 182     return DeleteDC( handle );
 183 }
 184
 185
 186 /***********************************************************************
 187  *           DC_InitDC
 188  *
 189  * Setup device-specific DC values for a newly created DC.
 190  */
 191 void DC_InitDC( DC* dc )
 192 {
 193     if (dc->funcs->pRealizeDefaultPalette) dc->funcs->pRealizeDefaultPalette( dc->physDev );
 194     SetTextColor( dc->hSelf, dc->textColor );
 195     SetBkColor( dc->hSelf, dc->backgroundColor );
 196     SelectObject( dc->hSelf, dc->hPen );
 197     SelectObject( dc->hSelf, dc->hBrush );
 198     SelectObject( dc->hSelf, dc->hFont );
 199     CLIPPING_UpdateGCRegion( dc );
 200 }
 201
 202
 203 /***********************************************************************
 204  *           DC_InvertXform
 205  *
 206  * Computes the inverse of the transformation xformSrc and stores it to
 207  * xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
 208  * is singular.
 209  */
 210 static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
 211 {
 212     FLOAT determinant;
 213
 214     determinant = xformSrc->eM11*xformSrc->eM22 -
 215         xformSrc->eM12*xformSrc->eM21;
 216     if (determinant > -1e-12 && determinant < 1e-12)
 217         return FALSE;
 218
 219     xformDest->eM11 =  xformSrc->eM22 / determinant;
 220     xformDest->eM12 = -xformSrc->eM12 / determinant;
 221     xformDest->eM21 = -xformSrc->eM21 / determinant;
 222     xformDest->eM22 =  xformSrc->eM11 / determinant;
 223     xformDest->eDx  = -xformSrc->eDx * xformDest->eM11 -
 224                        xformSrc->eDy * xformDest->eM21;
 225     xformDest->eDy  = -xformSrc->eDx * xformDest->eM12 -
 226                        xformSrc->eDy * xformDest->eM22;
 227
 228     return TRUE;
 229 }
 230
 231
 232 /***********************************************************************
 233  *           DC_UpdateXforms
 234  *
 235  * Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
 236  * fields of the specified DC by creating a transformation that
 237  * represents the current mapping mode and combining it with the DC's
 238  * world transform. This function should be called whenever the
 239  * parameters associated with the mapping mode (window and viewport
 240  * extents and origins) or the world transform change.
 241  */
 242 void DC_UpdateXforms( DC *dc )
 243 {
 244     XFORM xformWnd2Vport, oldworld2vport;
 245     FLOAT scaleX, scaleY;
 246
 247     /* Construct a transformation to do the window-to-viewport conversion */
 248     scaleX = (FLOAT)dc->vportExtX / (FLOAT)dc->wndExtX;
 249     scaleY = (FLOAT)dc->vportExtY / (FLOAT)dc->wndExtY;
 250     xformWnd2Vport.eM11 = scaleX;
 251     xformWnd2Vport.eM12 = 0.0;
 252     xformWnd2Vport.eM21 = 0.0;
 253     xformWnd2Vport.eM22 = scaleY;
 254     xformWnd2Vport.eDx  = (FLOAT)dc->vportOrgX -
 255         scaleX * (FLOAT)dc->wndOrgX;
 256     xformWnd2Vport.eDy  = (FLOAT)dc->vportOrgY -
 257         scaleY * (FLOAT)dc->wndOrgY;
 258
 259     oldworld2vport = dc->xformWorld2Vport;
 260     /* Combine with the world transformation */
 261     CombineTransform( &dc->xformWorld2Vport, &dc->xformWorld2Wnd,
 262         &xformWnd2Vport );
 263
 264     /* Create inverse of world-to-viewport transformation */
 265     dc->vport2WorldValid = DC_InvertXform( &dc->xformWorld2Vport,
 266         &dc->xformVport2World );
 267
 268     /* Reselect the font back into the dc so that the font size
 269        gets updated. */
 270     if(memcmp(&oldworld2vport, &dc->xformWorld2Vport, sizeof(oldworld2vport)))
 271         SelectObject(dc->hSelf, GetCurrentObject(dc->hSelf, OBJ_FONT));
 272 }
 273
 274
 275 /***********************************************************************
 276  *           GetDCState   (Not a Windows API)
 277  */
 278 HDC WINAPI GetDCState( HDC hdc )
 279 {
 280     DC * newdc, * dc;
 281     HGDIOBJ handle;
 282
 283     if (!(dc = DC_GetDCPtr( hdc ))) return 0;
 284     if (!(newdc = GDI_AllocObject( sizeof(DC), GDIMAGIC(dc->header.wMagic), &handle, &dc_funcs )))
 285     {
 286       GDI_ReleaseObj( hdc );
 287       return 0;
 288     }
 289     TRACE("(%p): returning %p\n", hdc, handle );
 290
 291     newdc->flags            = dc->flags | DC_SAVED;
 292     newdc->hPen             = dc->hPen;
 293     newdc->hBrush           = dc->hBrush;
 294     newdc->hFont            = dc->hFont;
 295     newdc->hBitmap          = dc->hBitmap;
 296     newdc->hDevice          = dc->hDevice;
 297     newdc->hPalette         = dc->hPalette;
 298     newdc->totalExtent      = dc->totalExtent;
 299     newdc->bitsPerPixel     = dc->bitsPerPixel;
 300     newdc->ROPmode          = dc->ROPmode;
 301     newdc->polyFillMode     = dc->polyFillMode;
 302     newdc->stretchBltMode   = dc->stretchBltMode;
 303     newdc->relAbsMode       = dc->relAbsMode;
 304     newdc->backgroundMode   = dc->backgroundMode;
 305     newdc->backgroundColor  = dc->backgroundColor;
 306     newdc->textColor        = dc->textColor;
 307     newdc->dcBrushColor     = dc->dcBrushColor;
 308     newdc->dcPenColor       = dc->dcPenColor;
 309     newdc->brushOrgX        = dc->brushOrgX;
 310     newdc->brushOrgY        = dc->brushOrgY;
 311     newdc->textAlign        = dc->textAlign;
 312     newdc->charExtra        = dc->charExtra;
 313     newdc->breakTotalExtra  = dc->breakTotalExtra;
 314     newdc->breakCount       = dc->breakCount;
 315     newdc->breakExtra       = dc->breakExtra;
 316     newdc->breakRem         = dc->breakRem;
 317     newdc->MapMode          = dc->MapMode;
 318     newdc->GraphicsMode     = dc->GraphicsMode;
 319     newdc->CursPosX         = dc->CursPosX;
 320     newdc->CursPosY         = dc->CursPosY;
 321     newdc->ArcDirection     = dc->ArcDirection;
 322     newdc->xformWorld2Wnd   = dc->xformWorld2Wnd;
 323     newdc->xformWorld2Vport = dc->xformWorld2Vport;
 324     newdc->xformVport2World = dc->xformVport2World;
 325     newdc->vport2WorldValid = dc->vport2WorldValid;
 326     newdc->wndOrgX          = dc->wndOrgX;
 327     newdc->wndOrgY          = dc->wndOrgY;
 328     newdc->wndExtX          = dc->wndExtX;
 329     newdc->wndExtY          = dc->wndExtY;
 330     newdc->vportOrgX        = dc->vportOrgX;
 331     newdc->vportOrgY        = dc->vportOrgY;
 332     newdc->vportExtX        = dc->vportExtX;
 333     newdc->vportExtY        = dc->vportExtY;
 334
 335     newdc->hSelf = (HDC)handle;
 336     newdc->saveLevel = 0;
 337
 338     PATH_InitGdiPath( &newdc->path );
 339
 340     newdc->pAbortProc = NULL;
 341     newdc->hookThunk  = NULL;
 342     newdc->hookProc   = 0;
 343
 344     /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
 345
 346     newdc->hGCClipRgn = newdc->hVisRgn = 0;
 347     if (dc->hClipRgn)
 348     {
 349         newdc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 350         CombineRgn( newdc->hClipRgn, dc->hClipRgn, 0, RGN_COPY );
 351     }
 352     else
 353         newdc->hClipRgn = 0;
 354
 355     if(dc->gdiFont) {
 356         newdc->gdiFont = dc->gdiFont;
 357     } else
 358         newdc->gdiFont = 0;
 359
 360     GDI_ReleaseObj( handle );
 361     GDI_ReleaseObj( hdc );
 362     return handle;
 363 }
 364
 365
 366 /***********************************************************************
 367  *           SetDCState   (Not a Windows API)
 368  */
 369 void WINAPI SetDCState( HDC hdc, HDC hdcs )
 370 {
 371     DC *dc, *dcs;
 372
 373     if (!(dc = DC_GetDCUpdate( hdc ))) return;
 374     if (!(dcs = DC_GetDCPtr( hdcs )))
 375     {
 376       GDI_ReleaseObj( hdc );
 377       return;
 378     }
 379     if (!dcs->flags & DC_SAVED)
 380     {
 381       GDI_ReleaseObj( hdc );
 382       GDI_ReleaseObj( hdcs );
 383       return;
 384     }
 385     TRACE("%p %p\n", hdc, hdcs );
 386
 387     dc->flags            = dcs->flags & ~(DC_SAVED | DC_DIRTY);
 388     dc->hDevice          = dcs->hDevice;
 389     dc->totalExtent      = dcs->totalExtent;
 390     dc->ROPmode          = dcs->ROPmode;
 391     dc->polyFillMode     = dcs->polyFillMode;
 392     dc->stretchBltMode   = dcs->stretchBltMode;
 393     dc->relAbsMode       = dcs->relAbsMode;
 394     dc->backgroundMode   = dcs->backgroundMode;
 395     dc->backgroundColor  = dcs->backgroundColor;
 396     dc->textColor        = dcs->textColor;
 397     dc->dcBrushColor     = dcs->dcBrushColor;
 398     dc->dcPenColor       = dcs->dcPenColor;
 399     dc->brushOrgX        = dcs->brushOrgX;
 400     dc->brushOrgY        = dcs->brushOrgY;
 401     dc->textAlign        = dcs->textAlign;
 402     dc->charExtra        = dcs->charExtra;
 403     dc->breakTotalExtra  = dcs->breakTotalExtra;
 404     dc->breakCount       = dcs->breakCount;
 405     dc->breakExtra       = dcs->breakExtra;
 406     dc->breakRem         = dcs->breakRem;
 407     dc->MapMode          = dcs->MapMode;
 408     dc->GraphicsMode     = dcs->GraphicsMode;
 409     dc->CursPosX         = dcs->CursPosX;
 410     dc->CursPosY         = dcs->CursPosY;
 411     dc->ArcDirection     = dcs->ArcDirection;
 412     dc->xformWorld2Wnd   = dcs->xformWorld2Wnd;
 413     dc->xformWorld2Vport = dcs->xformWorld2Vport;
 414     dc->xformVport2World = dcs->xformVport2World;
 415     dc->vport2WorldValid = dcs->vport2WorldValid;
 416
 417     dc->wndOrgX          = dcs->wndOrgX;
 418     dc->wndOrgY          = dcs->wndOrgY;
 419     dc->wndExtX          = dcs->wndExtX;
 420     dc->wndExtY          = dcs->wndExtY;
 421     dc->vportOrgX        = dcs->vportOrgX;
 422     dc->vportOrgY        = dcs->vportOrgY;
 423     dc->vportExtX        = dcs->vportExtX;
 424     dc->vportExtY        = dcs->vportExtY;
 425
 426     if (GDIMAGIC(dc->header.wMagic) != MEMORY_DC_MAGIC) dc->bitsPerPixel = dcs->bitsPerPixel;
 427
 428     if (dcs->hClipRgn)
 429     {
 430         if (!dc->hClipRgn) dc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
 431         CombineRgn( dc->hClipRgn, dcs->hClipRgn, 0, RGN_COPY );
 432     }
 433     else
 434     {
 435         if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 436         dc->hClipRgn = 0;
 437     }
 438     CLIPPING_UpdateGCRegion( dc );
 439
 440     SelectObject( hdc, dcs->hBitmap );
 441     SelectObject( hdc, dcs->hBrush );
 442     SelectObject( hdc, dcs->hFont );
 443     SelectObject( hdc, dcs->hPen );
 444     SetBkColor( hdc, dcs->backgroundColor);
 445     SetTextColor( hdc, dcs->textColor);
 446     GDISelectPalette( hdc, dcs->hPalette, FALSE );
 447     GDI_ReleaseObj( hdcs );
 448     GDI_ReleaseObj( hdc );
 449 }
 450
 451
 452 /***********************************************************************
 453  *           GetDCState   (GDI.179)
 454  */
 455 HDC16 WINAPI GetDCState16( HDC16 hdc )
 456 {
 457     return HDC_16( GetDCState( HDC_32(hdc) ));
 458 }
 459
 460
 461 /***********************************************************************
 462  *           SetDCState   (GDI.180)
 463  */
 464 void WINAPI SetDCState16( HDC16 hdc, HDC16 hdcs )
 465 {
 466     SetDCState( HDC_32(hdc), HDC_32(hdcs) );
 467 }
 468
 469
 470 /***********************************************************************
 471  *           SaveDC    (GDI32.@)
 472  */
 473 INT WINAPI SaveDC( HDC hdc )
 474 {
 475     HDC hdcs;
 476     DC * dc, * dcs;
 477     INT ret;
 478
 479     dc = DC_GetDCPtr( hdc );
 480     if (!dc) return 0;
 481
 482     if(dc->funcs->pSaveDC)
 483     {
 484         ret = dc->funcs->pSaveDC( dc->physDev );
 485         GDI_ReleaseObj( hdc );
 486         return ret;
 487     }
 488
 489     if (!(hdcs = GetDCState( hdc )))
 490     {
 491       GDI_ReleaseObj( hdc );
 492       return 0;
 493     }
 494     dcs = DC_GetDCPtr( hdcs );
 495
 496     /* Copy path. The reason why path saving / restoring is in SaveDC/
 497      * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
 498      * functions are only in Win16 (which doesn't have paths) and that
 499      * SetDCState doesn't allow us to signal an error (which can happen
 500      * when copying paths).
 501      */
 502     if (!PATH_AssignGdiPath( &dcs->path, &dc->path ))
 503     {
 504         GDI_ReleaseObj( hdc );
 505         GDI_ReleaseObj( hdcs );
 506         DeleteDC( hdcs );
 507         return 0;
 508     }
 509
 510     dcs->header.hNext = dc->header.hNext;
 511     dc->header.hNext = HDC_16(hdcs);
 512     TRACE("(%p): returning %d\n", hdc, dc->saveLevel+1 );
 513     ret = ++dc->saveLevel;
 514     GDI_ReleaseObj( hdcs );
 515     GDI_ReleaseObj( hdc );
 516     return ret;
 517 }
 518
 519
 520 /***********************************************************************
 521  *           RestoreDC    (GDI32.@)
 522  */
 523 BOOL WINAPI RestoreDC( HDC hdc, INT level )
 524 {
 525     DC * dc, * dcs;
 526     BOOL success;
 527
 528     TRACE("%p %d\n", hdc, level );
 529     dc = DC_GetDCUpdate( hdc );
 530     if(!dc) return FALSE;
 531     if(dc->funcs->pRestoreDC)
 532     {
 533         success = dc->funcs->pRestoreDC( dc->physDev, level );
 534         GDI_ReleaseObj( hdc );
 535         return success;
 536     }
 537
 538     if (level == -1) level = dc->saveLevel;
 539     if ((level < 1)
 540             /* This pair of checks disagrees with MSDN "Platform SDK:
 541                Windows GDI" July 2000 which says all negative values
 542                for level will be interpreted as an instance relative
 543                to the current state.  Restricting it to just -1 does
 544                not satisfy this */
 545         || (level > dc->saveLevel))
 546     {
 547         GDI_ReleaseObj( hdc );
 548         return FALSE;
 549     }
 550
 551     success=TRUE;
 552     while (dc->saveLevel >= level)
 553     {
 554         HDC hdcs = HDC_32(dc->header.hNext);
 555         if (!(dcs = DC_GetDCPtr( hdcs )))
 556         {
 557           GDI_ReleaseObj( hdc );
 558           return FALSE;
 559         }
 560         dc->header.hNext = dcs->header.hNext;
 561         if (--dc->saveLevel < level)
 562         {
 563             SetDCState( hdc, hdcs );
 564             if (!PATH_AssignGdiPath( &dc->path, &dcs->path ))
 565                 /* FIXME: This might not be quite right, since we're
 566                  * returning FALSE but still destroying the saved DC state */
 567                 success=FALSE;
 568         }
 569         GDI_ReleaseObj( hdcs );
 570         GDI_ReleaseObj( hdc );
 571         DeleteDC( hdcs );
 572         if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
 573     }
 574     GDI_ReleaseObj( hdc );
 575     return success;
 576 }
 577
 578
 579 /***********************************************************************
 580  *           CreateDCW    (GDI32.@)
 581  */
 582 HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 583                       const DEVMODEW *initData )
 584 {
 585     HDC hdc;
 586     DC * dc;
 587     const DC_FUNCTIONS *funcs;
 588     WCHAR buf[300];
 589
 590     GDI_CheckNotLock();
 591
 592     if (!device || !DRIVER_GetDriverName( device, buf, 300 ))
 593     {
 594         if (!driver) return 0;
 595         strcpyW(buf, driver);
 596     }
 597
 598     if (!(funcs = DRIVER_load_driver( buf )))
 599     {
 600         ERR( "no driver found for %s\n", debugstr_w(buf) );
 601         return 0;
 602     }
 603     if (!(dc = DC_AllocDC( funcs, DC_MAGIC )))
 604     {
 605         DRIVER_release_driver( funcs );
 606         return 0;
 607     }
 608
 609     dc->hBitmap = GetStockObject( DEFAULT_BITMAP );
 610
 611     TRACE("(driver=%s, device=%s, output=%s): returning %p\n",
 612           debugstr_w(driver), debugstr_w(device), debugstr_w(output), dc->hSelf );
 613
 614     if (dc->funcs->pCreateDC &&
 615         !dc->funcs->pCreateDC( dc, &dc->physDev, buf, device, output, initData ))
 616     {
 617         WARN("creation aborted by device\n" );
 618         GDI_FreeObject( dc->hSelf, dc );
 619         DRIVER_release_driver( funcs );
 620         return 0;
 621     }
 622
 623     dc->totalExtent.left   = 0;
 624     dc->totalExtent.top    = 0;
 625     dc->totalExtent.right  = GetDeviceCaps( dc->hSelf, HORZRES );
 626     dc->totalExtent.bottom = GetDeviceCaps( dc->hSelf, VERTRES );
 627     dc->hVisRgn = CreateRectRgnIndirect( &dc->totalExtent );
 628
 629     DC_InitDC( dc );
 630     hdc = dc->hSelf;
 631     GDI_ReleaseObj( hdc );
 632     return hdc;
 633 }
 634
 635
 636 /***********************************************************************
 637  *           CreateDCA    (GDI32.@)
 638  */
 639 HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
 640                       const DEVMODEA *initData )
 641 {
 642     UNICODE_STRING driverW, deviceW, outputW;
 643     DEVMODEW *initDataW;
 644     HDC ret;
 645
 646     if (driver) RtlCreateUnicodeStringFromAsciiz(&driverW, driver);
 647     else driverW.Buffer = NULL;
 648
 649     if (device) RtlCreateUnicodeStringFromAsciiz(&deviceW, device);
 650     else deviceW.Buffer = NULL;
 651
 652     if (output) RtlCreateUnicodeStringFromAsciiz(&outputW, output);
 653     else outputW.Buffer = NULL;
 654
 655     if (initData) initDataW = GdiConvertToDevmodeW(initData);
 656     else initDataW = NULL;
 657
 658     ret = CreateDCW( driverW.Buffer, deviceW.Buffer, outputW.Buffer, initDataW );
 659
 660     RtlFreeUnicodeString(&driverW);
 661     RtlFreeUnicodeString(&deviceW);
 662     RtlFreeUnicodeString(&outputW);
 663     if (initDataW) HeapFree(GetProcessHeap(), 0, initDataW);
 664     return ret;
 665 }
 666
 667
 668 /***********************************************************************
 669  *           CreateICA    (GDI32.@)
 670  */
 671 HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
 672                           const DEVMODEA* initData )
 673 {
 674       /* Nothing special yet for ICs */
 675     return CreateDCA( driver, device, output, initData );
 676 }
 677
 678
 679 /***********************************************************************
 680  *           CreateICW    (GDI32.@)
 681  */
 682 HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
 683                           const DEVMODEW* initData )
 684 {
 685       /* Nothing special yet for ICs */
 686     return CreateDCW( driver, device, output, initData );
 687 }
 688
 689
 690 /***********************************************************************
 691  *           CreateCompatibleDC   (GDI32.@)
 692  */
 693 HDC WINAPI CreateCompatibleDC( HDC hdc )
 694 {
 695     DC *dc, *origDC;
 696     const DC_FUNCTIONS *funcs;
 697     PHYSDEV physDev;
 698
 699     GDI_CheckNotLock();
 700
 701     if ((origDC = GDI_GetObjPtr( hdc, DC_MAGIC )))
 702     {
 703         funcs = origDC->funcs;
 704         physDev = origDC->physDev;
 705         GDI_ReleaseObj( hdc ); /* can't hold the lock while loading the driver */
 706         funcs = DRIVER_get_driver( funcs );
 707     }
 708     else
 709     {
 710         static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 711         funcs = DRIVER_load_driver( displayW );
 712         physDev = NULL;
 713     }
 714
 715     if (!funcs) return 0;
 716
 717     if (!(dc = DC_AllocDC( funcs, MEMORY_DC_MAGIC )))
 718     {
 719         DRIVER_release_driver( funcs );
 720         return 0;
 721     }
 722
 723     TRACE("(%p): returning %p\n", hdc, dc->hSelf );
 724
 725     dc->bitsPerPixel = 1;
 726     dc->hBitmap      = GetStockObject( DEFAULT_BITMAP );
 727
 728     /* Copy the driver-specific physical device info into
 729      * the new DC. The driver may use this read-only info
 730      * while creating the compatible DC below. */
 731     dc->physDev = physDev;
 732
 733     if (dc->funcs->pCreateDC &&
 734         !dc->funcs->pCreateDC( dc, &dc->physDev, NULL, NULL, NULL, NULL ))
 735     {
 736         WARN("creation aborted by device\n");
 737         GDI_FreeObject( dc->hSelf, dc );
 738         DRIVER_release_driver( funcs );
 739         return 0;
 740     }
 741
 742     dc->totalExtent.left   = 0;
 743     dc->totalExtent.top    = 0;
 744     dc->totalExtent.right  = 1;  /* default bitmap is 1x1 */
 745     dc->totalExtent.bottom = 1;
 746     dc->hVisRgn = CreateRectRgnIndirect( &dc->totalExtent );
 747
 748     DC_InitDC( dc );
 749     GDI_ReleaseObj( dc->hSelf );
 750     return dc->hSelf;
 751 }
 752
 753
 754 /***********************************************************************
 755  *           DeleteDC    (GDI32.@)
 756  */
 757 BOOL WINAPI DeleteDC( HDC hdc )
 758 {
 759     const DC_FUNCTIONS *funcs = NULL;
 760     DC * dc;
 761
 762     TRACE("%p\n", hdc );
 763
 764     GDI_CheckNotLock();
 765
 766     if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
 767
 768     /* Call hook procedure to check whether is it OK to delete this DC */
 769     if (dc->hookThunk)
 770     {
 771         DCHOOKPROC proc = dc->hookThunk;
 772         DWORD data = dc->dwHookData;
 773         GDI_ReleaseObj( hdc );
 774         if (!proc( HDC_16(hdc), DCHC_DELETEDC, data, 0 )) return FALSE;
 775         if (!(dc = DC_GetDCPtr( hdc ))) return TRUE;  /* deleted by the hook */
 776     }
 777
 778     while (dc->saveLevel)
 779     {
 780         DC * dcs;
 781         HDC hdcs = HDC_32(dc->header.hNext);
 782         if (!(dcs = DC_GetDCPtr( hdcs ))) break;
 783         dc->header.hNext = dcs->header.hNext;
 784         dc->saveLevel--;
 785         if (dcs->hClipRgn) DeleteObject( dcs->hClipRgn );
 786         if (dcs->hVisRgn) DeleteObject( dcs->hVisRgn );
 787         if (dcs->hGCClipRgn) DeleteObject( dcs->hGCClipRgn );
 788         PATH_DestroyGdiPath(&dcs->path);
 789         GDI_FreeObject( hdcs, dcs );
 790     }
 791
 792     if (!(dc->flags & DC_SAVED))
 793     {
 794         SelectObject( hdc, GetStockObject(BLACK_PEN) );
 795         SelectObject( hdc, GetStockObject(WHITE_BRUSH) );
 796         SelectObject( hdc, GetStockObject(SYSTEM_FONT) );
 797         SelectObject( hdc, GetStockObject(DEFAULT_BITMAP) );
 798         funcs = dc->funcs;
 799         if (dc->funcs->pDeleteDC) dc->funcs->pDeleteDC(dc->physDev);
 800         dc->physDev = NULL;
 801     }
 802
 803     if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
 804     if (dc->hVisRgn) DeleteObject( dc->hVisRgn );
 805     if (dc->hGCClipRgn) DeleteObject( dc->hGCClipRgn );
 806     PATH_DestroyGdiPath(&dc->path);
 807
 808     GDI_FreeObject( hdc, dc );
 809     if (funcs) DRIVER_release_driver( funcs );  /* do that after releasing the GDI lock */
 810     return TRUE;
 811 }
 812
 813
 814 /***********************************************************************
 815  *           ResetDCA    (GDI32.@)
 816  */
 817 HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
 818 {
 819     DC *dc;
 820     HDC ret = hdc;
 821
 822     if ((dc = DC_GetDCPtr( hdc )))
 823     {
 824         if (dc->funcs->pResetDC) ret = dc->funcs->pResetDC( dc->physDev, devmode );
 825         GDI_ReleaseObj( hdc );
 826     }
 827     return ret;
 828 }
 829
 830
 831 /***********************************************************************
 832  *           ResetDCW    (GDI32.@)
 833  */
 834 HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
 835 {
 836     return ResetDCA(hdc, (const DEVMODEA*)devmode); /* FIXME */
 837 }
 838
 839
 840 /***********************************************************************
 841  *           GetDeviceCaps    (GDI32.@)
 842  */
 843 INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
 844 {
 845     DC *dc;
 846     INT ret = 0;
 847
 848     if ((dc = DC_GetDCPtr( hdc )))
 849     {
 850         if (dc->funcs->pGetDeviceCaps) ret = dc->funcs->pGetDeviceCaps( dc->physDev, cap );
 851         GDI_ReleaseObj( hdc );
 852     }
 853     return ret;
 854 }
 855
 856
 857 /***********************************************************************
 858  *           SetBkColor    (GDI32.@)
 859  */
 860 COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
 861 {
 862     COLORREF oldColor;
 863     DC * dc = DC_GetDCPtr( hdc );
 864
 865     TRACE("hdc=%p color=0x%08lx\n", hdc, color);
 866
 867     if (!dc) return CLR_INVALID;
 868     oldColor = dc->backgroundColor;
 869     if (dc->funcs->pSetBkColor)
 870     {
 871         color = dc->funcs->pSetBkColor(dc->physDev, color);
 872         if (color == CLR_INVALID)  /* don't change it */
 873         {
 874             color = oldColor;
 875             oldColor = CLR_INVALID;
 876         }
 877     }
 878     dc->backgroundColor = color;
 879     GDI_ReleaseObj( hdc );
 880     return oldColor;
 881 }
 882
 883
 884 /***********************************************************************
 885  *           SetTextColor    (GDI32.@)
 886  */
 887 COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
 888 {
 889     COLORREF oldColor;
 890     DC * dc = DC_GetDCPtr( hdc );
 891
 892     TRACE(" hdc=%p color=0x%08lx\n", hdc, color);
 893
 894     if (!dc) return CLR_INVALID;
 895     oldColor = dc->textColor;
 896     if (dc->funcs->pSetTextColor)
 897     {
 898         color = dc->funcs->pSetTextColor(dc->physDev, color);
 899         if (color == CLR_INVALID)  /* don't change it */
 900         {
 901             color = oldColor;
 902             oldColor = CLR_INVALID;
 903         }
 904     }
 905     dc->textColor = color;
 906     GDI_ReleaseObj( hdc );
 907     return oldColor;
 908 }
 909
 910
 911 /***********************************************************************
 912  *           SetTextAlign    (GDI32.@)
 913  */
 914 UINT WINAPI SetTextAlign( HDC hdc, UINT align )
 915 {
 916     UINT prevAlign;
 917     DC *dc = DC_GetDCPtr( hdc );
 918
 919     TRACE("hdc=%p align=%d\n", hdc, align);
 920
 921     if (!dc) return 0x0;
 922     if (dc->funcs->pSetTextAlign)
 923         prevAlign = dc->funcs->pSetTextAlign(dc->physDev, align);
 924     else {
 925         prevAlign = dc->textAlign;
 926         dc->textAlign = align;
 927     }
 928     GDI_ReleaseObj( hdc );
 929     return prevAlign;
 930 }
 931
 932 /***********************************************************************
 933  *           GetDCOrgEx  (GDI32.@)
 934  */
 935 BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
 936 {
 937     DC * dc;
 938
 939     if (!lpp) return FALSE;
 940     if (!(dc = DC_GetDCPtr( hDC ))) return FALSE;
 941
 942     lpp->x = lpp->y = 0;
 943     if (dc->funcs->pGetDCOrgEx) dc->funcs->pGetDCOrgEx( dc->physDev, lpp );
 944     GDI_ReleaseObj( hDC );
 945     return TRUE;
 946 }
 947
 948
 949 /***********************************************************************
 950  *           SetDCOrg   (GDI.117)
 951  */
 952 DWORD WINAPI SetDCOrg16( HDC16 hdc16, INT16 x, INT16 y )
 953 {
 954     DWORD prevOrg = 0;
 955     HDC hdc = HDC_32( hdc16 );
 956     DC *dc = DC_GetDCPtr( hdc );
 957     if (!dc) return 0;
 958     if (dc->funcs->pSetDCOrg) prevOrg = dc->funcs->pSetDCOrg( dc->physDev, x, y );
 959     GDI_ReleaseObj( hdc );
 960     return prevOrg;
 961 }
 962
 963
 964 /***********************************************************************
 965  *           SetGraphicsMode    (GDI32.@)
 966  */
 967 INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
 968 {
 969     INT ret = 0;
 970     DC *dc = DC_GetDCPtr( hdc );
 971
 972     /* One would think that setting the graphics mode to GM_COMPATIBLE
 973      * would also reset the world transformation matrix to the unity
 974      * matrix. However, in Windows, this is not the case. This doesn't
 975      * make a lot of sense to me, but that's the way it is.
 976      */
 977     if (!dc) return 0;
 978     if ((mode > 0) && (mode <= GM_LAST))
 979     {
 980         ret = dc->GraphicsMode;
 981         dc->GraphicsMode = mode;
 982     }
 983     GDI_ReleaseObj( hdc );
 984     return ret;
 985 }
 986
 987
 988 /***********************************************************************
 989  *           SetArcDirection    (GDI32.@)
 990  */
 991 INT WINAPI SetArcDirection( HDC hdc, INT nDirection )
 992 {
 993     DC * dc;
 994     INT nOldDirection = 0;
 995
 996     if (nDirection!=AD_COUNTERCLOCKWISE && nDirection!=AD_CLOCKWISE)
 997     {
 998         SetLastError(ERROR_INVALID_PARAMETER);
 999         return 0;
1000     }
1001
1002     if ((dc = DC_GetDCPtr( hdc )))
1003     {
1004         if (dc->funcs->pSetArcDirection)
1005         {
1006             dc->funcs->pSetArcDirection(dc->physDev, nDirection);
1007         }
1008         nOldDirection = dc->ArcDirection;
1009         dc->ArcDirection = nDirection;
1010         GDI_ReleaseObj( hdc );
1011     }
1012     return nOldDirection;
1013 }
1014
1015
1016 /***********************************************************************
1017  *           GetWorldTransform    (GDI32.@)
1018  */
1019 BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
1020 {
1021     DC * dc;
1022     if (!xform) return FALSE;
1023     if (!(dc = DC_GetDCPtr( hdc ))) return FALSE;
1024     *xform = dc->xformWorld2Wnd;
1025     GDI_ReleaseObj( hdc );
1026     return TRUE;
1027 }
1028
1029
1030 /***********************************************************************
1031  *           GetTransform    (GDI32.@)
1032  */
1033 BOOL WINAPI GetTransform( HDC hdc, DWORD unknown, LPXFORM xform )
1034 {
1035     if (unknown == 0x0203) return GetWorldTransform( hdc, xform );
1036     ERR("stub: don't know what to do for code %lx\n", unknown );
1037     return FALSE;
1038 }
1039
1040
1041 /***********************************************************************
1042  *           SetWorldTransform    (GDI32.@)
1043  */
1044 BOOL WINAPI SetWorldTransform( HDC hdc, const XFORM *xform )
1045 {
1046     BOOL ret = FALSE;
1047     DC *dc = DC_GetDCPtr( hdc );
1048
1049     if (!dc) return FALSE;
1050     if (!xform) goto done;
1051
1052     /* Check that graphics mode is GM_ADVANCED */
1053     if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1054
1055     if (dc->funcs->pSetWorldTransform)
1056     {
1057         ret = dc->funcs->pSetWorldTransform(dc->physDev, xform);
1058         if (!ret) goto done;
1059     }
1060
1061     dc->xformWorld2Wnd = *xform;
1062     DC_UpdateXforms( dc );
1063     ret = TRUE;
1064  done:
1065     GDI_ReleaseObj( hdc );
1066     return ret;
1067 }
1068
1069
1070 /****************************************************************************
1071  * ModifyWorldTransform [GDI32.@]
1072  * Modifies the world transformation for a device context.
1073  *
1074  * PARAMS
1075  *    hdc   [I] Handle to device context
1076  *    xform [I] XFORM structure that will be used to modify the world
1077  *              transformation
1078  *    iMode [I] Specifies in what way to modify the world transformation
1079  *              Possible values:
1080  *              MWT_IDENTITY
1081  *                 Resets the world transformation to the identity matrix.
1082  *                 The parameter xform is ignored.
1083  *              MWT_LEFTMULTIPLY
1084  *                 Multiplies xform into the world transformation matrix from
1085  *                 the left.
1086  *              MWT_RIGHTMULTIPLY
1087  *                 Multiplies xform into the world transformation matrix from
1088  *                 the right.
1089  *
1090  * RETURNS STD
1091  */
1092 BOOL WINAPI ModifyWorldTransform( HDC hdc, const XFORM *xform,
1093     DWORD iMode )
1094 {
1095     BOOL ret = FALSE;
1096     DC *dc = DC_GetDCPtr( hdc );
1097
1098     /* Check for illegal parameters */
1099     if (!dc) return FALSE;
1100     if (!xform) goto done;
1101
1102     /* Check that graphics mode is GM_ADVANCED */
1103     if (dc->GraphicsMode!=GM_ADVANCED) goto done;
1104
1105     if (dc->funcs->pModifyWorldTransform)
1106     {
1107         ret = dc->funcs->pModifyWorldTransform(dc->physDev, xform, iMode);
1108         if (!ret) goto done;
1109     }
1110
1111     switch (iMode)
1112     {
1113         case MWT_IDENTITY:
1114             dc->xformWorld2Wnd.eM11 = 1.0f;
1115             dc->xformWorld2Wnd.eM12 = 0.0f;
1116             dc->xformWorld2Wnd.eM21 = 0.0f;
1117             dc->xformWorld2Wnd.eM22 = 1.0f;
1118             dc->xformWorld2Wnd.eDx  = 0.0f;
1119             dc->xformWorld2Wnd.eDy  = 0.0f;
1120             break;
1121         case MWT_LEFTMULTIPLY:
1122             CombineTransform( &dc->xformWorld2Wnd, xform,
1123                 &dc->xformWorld2Wnd );
1124             break;
1125         case MWT_RIGHTMULTIPLY:
1126             CombineTransform( &dc->xformWorld2Wnd, &dc->xformWorld2Wnd,
1127                 xform );
1128             break;
1129         default:
1130             goto done;
1131     }
1132
1133     DC_UpdateXforms( dc );
1134     ret = TRUE;
1135  done:
1136     GDI_ReleaseObj( hdc );
1137     return ret;
1138 }
1139
1140
1141 /****************************************************************************
1142  * CombineTransform [GDI32.@]
1143  * Combines two transformation matrices.
1144  *
1145  * PARAMS
1146  *    xformResult [O] Stores the result of combining the two matrices
1147  *    xform1      [I] Specifies the first matrix to apply
1148  *    xform2      [I] Specifies the second matrix to apply
1149  *
1150  * REMARKS
1151  *    The same matrix can be passed in for more than one of the parameters.
1152  *
1153  * RETURNS STD
1154  */
1155 BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
1156     const XFORM *xform2 )
1157 {
1158     XFORM xformTemp;
1159
1160     /* Check for illegal parameters */
1161     if (!xformResult || !xform1 || !xform2)
1162         return FALSE;
1163
1164     /* Create the result in a temporary XFORM, since xformResult may be
1165      * equal to xform1 or xform2 */
1166     xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
1167                      xform1->eM12 * xform2->eM21;
1168     xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
1169                      xform1->eM12 * xform2->eM22;
1170     xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
1171                      xform1->eM22 * xform2->eM21;
1172     xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
1173                      xform1->eM22 * xform2->eM22;
1174     xformTemp.eDx  = xform1->eDx  * xform2->eM11 +
1175                      xform1->eDy  * xform2->eM21 +
1176                      xform2->eDx;
1177     xformTemp.eDy  = xform1->eDx  * xform2->eM12 +
1178                      xform1->eDy  * xform2->eM22 +
1179                      xform2->eDy;
1180
1181     /* Copy the result to xformResult */
1182     *xformResult = xformTemp;
1183
1184     return TRUE;
1185 }
1186
1187
1188 /***********************************************************************
1189  *           SetDCHook   (GDI32.@)
1190  *
1191  * Note: this doesn't exist in Win32, we add it here because user32 needs it.
1192  */
1193 BOOL WINAPI SetDCHook( HDC hdc, DCHOOKPROC hookProc, DWORD dwHookData )
1194 {
1195     DC *dc = GDI_GetObjPtr( hdc, DC_MAGIC );
1196
1197     if (!dc) return FALSE;
1198
1199     if (!(dc->flags & DC_SAVED))
1200     {
1201         dc->dwHookData = dwHookData;
1202         dc->hookThunk = hookProc;
1203     }
1204     GDI_ReleaseObj( hdc );
1205     return TRUE;
1206 }
1207
1208
1209 /* relay function to call the 16-bit DC hook proc */
1210 static BOOL16 WINAPI call_dc_hook16( HDC16 hdc16, WORD code, DWORD data, LPARAM lParam )
1211 {
1212     WORD args[6];
1213     DWORD ret;
1214     FARPROC16 proc = NULL;
1215     HDC hdc = HDC_32( hdc16 );
1216     DC *dc = DC_GetDCPtr( hdc );
1217
1218     if (!dc) return FALSE;
1219     proc = dc->hookProc;
1220     GDI_ReleaseObj( hdc );
1221     if (!proc) return FALSE;
1222     args[5] = hdc16;
1223     args[4] = code;
1224     args[3] = HIWORD(data);
1225     args[2] = LOWORD(data);
1226     args[1] = HIWORD(lParam);
1227     args[0] = LOWORD(lParam);
1228     WOWCallback16Ex( (DWORD)proc, WCB16_PASCAL, sizeof(args), args, &ret );
1229     return LOWORD(ret);
1230 }
1231
1232 /***********************************************************************
1233  *           SetDCHook   (GDI.190)
1234  */
1235 BOOL16 WINAPI SetDCHook16( HDC16 hdc16, FARPROC16 hookProc, DWORD dwHookData )
1236 {
1237     HDC hdc = HDC_32( hdc16 );
1238     DC *dc = DC_GetDCPtr( hdc );
1239     if (!dc) return FALSE;
1240
1241     dc->hookProc = hookProc;
1242     GDI_ReleaseObj( hdc );
1243     return SetDCHook( hdc, call_dc_hook16, dwHookData );
1244 }
1245
1246
1247 /***********************************************************************
1248  *           GetDCHook   (GDI.191)
1249  */
1250 DWORD WINAPI GetDCHook16( HDC16 hdc16, FARPROC16 *phookProc )
1251 {
1252     HDC hdc = HDC_32( hdc16 );
1253     DC *dc = DC_GetDCPtr( hdc );
1254     DWORD ret;
1255
1256     if (!dc) return 0;
1257     *phookProc = dc->hookProc;
1258     ret = dc->dwHookData;
1259     GDI_ReleaseObj( hdc );
1260     return ret;
1261 }
1262
1263
1264 /***********************************************************************
1265  *           SetHookFlags   (GDI.192)
1266  */
1267 WORD WINAPI SetHookFlags16(HDC16 hdc16, WORD flags)
1268 {
1269     HDC hdc = HDC_32( hdc16 );
1270     DC *dc = DC_GetDCPtr( hdc );
1271
1272     if( dc )
1273     {
1274         WORD wRet = dc->flags & DC_DIRTY;
1275
1276         /* "Undocumented Windows" info is slightly confusing.
1277          */
1278
1279         TRACE("hDC %p, flags %04x\n",hdc,flags);
1280
1281         if( flags & DCHF_INVALIDATEVISRGN )
1282             dc->flags |= DC_DIRTY;
1283         else if( flags & DCHF_VALIDATEVISRGN || !flags )
1284             dc->flags &= ~DC_DIRTY;
1285         GDI_ReleaseObj( hdc );
1286         return wRet;
1287     }
1288     return 0;
1289 }
1290
1291 /***********************************************************************
1292  *           SetICMMode    (GDI32.@)
1293  */
1294 INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
1295 {
1296 /*FIXME  Asuming that ICM is always off, and cannot be turned on */
1297     if (iEnableICM == ICM_OFF) return ICM_OFF;
1298     if (iEnableICM == ICM_ON) return 0;
1299     if (iEnableICM == ICM_QUERY) return ICM_OFF;
1300     return 0;
1301 }
1302
1303 /***********************************************************************
1304  *           GetDeviceGammaRamp    (GDI32.@)
1305  */
1306 BOOL WINAPI GetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1307 {
1308     BOOL ret = FALSE;
1309     DC *dc = DC_GetDCPtr( hDC );
1310
1311     if( dc )
1312     {
1313         if (dc->funcs->pGetDeviceGammaRamp)
1314             ret = dc->funcs->pGetDeviceGammaRamp(dc->physDev, ptr);
1315         GDI_ReleaseObj( hDC );
1316     }
1317     return ret;
1318 }
1319
1320 /***********************************************************************
1321  *           SetDeviceGammaRamp    (GDI32.@)
1322  */
1323 BOOL WINAPI SetDeviceGammaRamp(HDC hDC, LPVOID ptr)
1324 {
1325     BOOL ret = FALSE;
1326     DC *dc = DC_GetDCPtr( hDC );
1327
1328     if( dc )
1329     {
1330         if (dc->funcs->pSetDeviceGammaRamp)
1331             ret = dc->funcs->pSetDeviceGammaRamp(dc->physDev, ptr);
1332         GDI_ReleaseObj( hDC );
1333     }
1334     return ret;
1335 }
1336
1337 /***********************************************************************
1338  *           GetColorSpace    (GDI32.@)
1339  */
1340 HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
1341 {
1342 /*FIXME    Need to to whatever GetColorSpace actually does */
1343     return 0;
1344 }
1345
1346 /***********************************************************************
1347  *           CreateColorSpaceA    (GDI32.@)
1348  */
1349 HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
1350 {
1351   FIXME( "stub\n" );
1352   return 0;
1353 }
1354
1355 /***********************************************************************
1356  *           CreateColorSpaceW    (GDI32.@)
1357  */
1358 HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
1359 {
1360   FIXME( "stub\n" );
1361   return 0;
1362 }
1363
1364 /***********************************************************************
1365  *           DeleteColorSpace     (GDI32.@)
1366  */
1367 BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
1368 {
1369   FIXME( "stub\n" );
1370
1371   return TRUE;
1372 }
1373
1374 /***********************************************************************
1375  *           SetColorSpace     (GDI32.@)
1376  */
1377 HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
1378 {
1379   FIXME( "stub\n" );
1380
1381   return hColorSpace;
1382 }
1383
1384 /***********************************************************************
1385  *           GetBoundsRect    (GDI.194)
1386  */
1387 UINT16 WINAPI GetBoundsRect16(HDC16 hdc, LPRECT16 rect, UINT16 flags)
1388 {
1389     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1390 }
1391
1392 /***********************************************************************
1393  *           GetBoundsRect    (GDI32.@)
1394  */
1395 UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
1396 {
1397     FIXME("(): stub\n");
1398     return DCB_RESET;   /* bounding rectangle always empty */
1399 }
1400
1401 /***********************************************************************
1402  *           SetBoundsRect    (GDI.193)
1403  */
1404 UINT16 WINAPI SetBoundsRect16(HDC16 hdc, const RECT16* rect, UINT16 flags)
1405 {
1406     if ( (flags & DCB_ACCUMULATE) || (flags & DCB_ENABLE) )
1407         FIXME("(%04x, %p, %04x): stub\n", hdc, rect, flags );
1408
1409     return DCB_RESET | DCB_DISABLE; /* bounding rectangle always empty and disabled*/
1410 }
1411
1412 /***********************************************************************
1413  *           SetBoundsRect    (GDI32.@)
1414  */
1415 UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
1416 {
1417     FIXME("(): stub\n");
1418     return DCB_DISABLE;   /* bounding rectangle always empty */
1419 }
1420
1421
1422 /***********************************************************************
1423  *              GetRelAbs               (GDI32.@)
1424  */
1425 INT WINAPI GetRelAbs( HDC hdc, DWORD dwIgnore )
1426 {
1427     INT ret = 0;
1428     DC *dc = DC_GetDCPtr( hdc );
1429     if (dc) ret = dc->relAbsMode;
1430     GDI_ReleaseObj( hdc );
1431     return ret;
1432 }
1433
1434 /***********************************************************************
1435  *           GetLayout    (GDI32.@)
1436  *
1437  * Gets left->right or right->left text layout flags of a dc.
1438  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1439  *
1440  */
1441 DWORD WINAPI GetLayout(HDC hdc)
1442 {
1443     FIXME("(%p): stub\n", hdc);
1444     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1445     return 0;
1446 }
1447
1448 /***********************************************************************
1449  *           SetLayout    (GDI32.@)
1450  *
1451  * Sets left->right or right->left text layout flags of a dc.
1452  * win98 just returns 0 and sets ERROR_CALL_NOT_IMPLEMENTED so we do the same
1453  *
1454  */
1455 DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
1456 {
1457     FIXME("(%p,%08lx): stub\n", hdc, layout);
1458     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1459     return 0;
1460 }
1461
1462 /***********************************************************************
1463  *           GetDCBrushColor    (GDI32.@)
1464  *
1465  * Retrieves the current brush color for the specified device
1466  * context (DC).
1467  *
1468  */
1469 COLORREF WINAPI GetDCBrushColor(HDC hdc)
1470 {
1471     DC *dc;
1472     COLORREF dcBrushColor = CLR_INVALID;
1473
1474     TRACE("hdc(%p)\n", hdc);
1475
1476     dc = DC_GetDCPtr( hdc );
1477     if (dc)
1478     {
1479         dcBrushColor = dc->dcBrushColor;
1480         GDI_ReleaseObj( hdc );
1481     }
1482
1483     return dcBrushColor;
1484 }
1485
1486 /***********************************************************************
1487  *           SetDCBrushColor    (GDI32.@)
1488  *
1489  * Sets the current device context (DC) brush color to the specified
1490  * color value. If the device cannot represent the specified color
1491  * value, the color is set to the nearest physical color.
1492  *
1493  */
1494 COLORREF WINAPI SetDCBrushColor(HDC hdc, COLORREF crColor)
1495 {
1496     DC *dc;
1497     COLORREF oldClr = CLR_INVALID;
1498
1499     TRACE("hdc(%p) crColor(%08lx)\n", hdc, crColor);
1500
1501     dc = DC_GetDCPtr( hdc );
1502     if (dc)
1503     {
1504         if (dc->funcs->pSetDCBrushColor)
1505             crColor = dc->funcs->pSetDCBrushColor( dc->physDev, crColor );
1506         else if (dc->hBrush == GetStockObject( DC_BRUSH ))
1507         {
1508             /* If DC_BRUSH is selected, update driver pen color */
1509             HBRUSH hBrush = CreateSolidBrush( crColor );
1510             dc->funcs->pSelectBrush( dc->physDev, hBrush );
1511             DeleteObject( hBrush );
1512         }
1513
1514         if (crColor != CLR_INVALID)
1515         {
1516             oldClr = dc->dcBrushColor;
1517             dc->dcBrushColor = crColor;
1518         }
1519
1520         GDI_ReleaseObj( hdc );
1521     }
1522
1523     return oldClr;
1524 }
1525
1526 /***********************************************************************
1527  *           GetDCPenColor    (GDI32.@)
1528  *
1529  * Retrieves the current pen color for the specified device
1530  * context (DC).
1531  *
1532  */
1533 COLORREF WINAPI GetDCPenColor(HDC hdc)
1534 {
1535     DC *dc;
1536     COLORREF dcPenColor = CLR_INVALID;
1537
1538     TRACE("hdc(%p)\n", hdc);
1539
1540     dc = DC_GetDCPtr( hdc );
1541     if (dc)
1542     {
1543         dcPenColor = dc->dcPenColor;
1544         GDI_ReleaseObj( hdc );
1545     }
1546
1547     return dcPenColor;
1548 }
1549
1550 /***********************************************************************
1551  *           SetDCPenColor    (GDI32.@)
1552  *
1553  * Sets the current device context (DC) pen color to the specified
1554  * color value. If the device cannot represent the specified color
1555  * value, the color is set to the nearest physical color.
1556  *
1557  */
1558 COLORREF WINAPI SetDCPenColor(HDC hdc, COLORREF crColor)
1559 {
1560     DC *dc;
1561     COLORREF oldClr = CLR_INVALID;
1562
1563     TRACE("hdc(%p) crColor(%08lx)\n", hdc, crColor);
1564
1565     dc = DC_GetDCPtr( hdc );
1566     if (dc)
1567     {
1568         if (dc->funcs->pSetDCPenColor)
1569             crColor = dc->funcs->pSetDCPenColor( dc->physDev, crColor );
1570         else if (dc->hPen == GetStockObject( DC_PEN ))
1571         {
1572             /* If DC_PEN is selected, update the driver pen color */
1573             LOGPEN logpen = { PS_SOLID, { 0, 0 }, crColor };
1574             HPEN hPen = CreatePenIndirect( &logpen );
1575             dc->funcs->pSelectPen( dc->physDev, hPen );
1576             DeleteObject( hPen );
1577         }
1578
1579         if (crColor != CLR_INVALID)
1580         {
1581             oldClr = dc->dcPenColor;
1582             dc->dcPenColor = crColor;
1583         }
1584
1585         GDI_ReleaseObj( hdc );
1586     }
1587
1588     return oldClr;
1589 }
1590
1591 /***********************************************************************
1592  *           SetVirtualResolution   (GDI32.@)
1593  *
1594  * Undocumented on msdn.  Called when PowerPoint XP saves a file.
1595  */
1596 DWORD WINAPI SetVirtualResolution(HDC hdc, DWORD dw2, DWORD dw3, DWORD dw4, DWORD dw5)
1597 {
1598     FIXME("(%p %08lx %08lx %08lx %08lx): stub!\n", hdc, dw2, dw3, dw4, dw5);
1599     return FALSE;
1600 }