include/gdi.h

   1 /*
   2  * GDI definitions
   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 #ifndef __WINE_GDI_H
  22 #define __WINE_GDI_H
  23
  24 #include "windef.h"
  25 #include "wingdi.h"
  26 #include "wine/wingdi16.h"
  27 #include "path.h"
  28 #include <math.h>
  29
  30   /* GDI objects magic numbers */
  31 #define FIRST_MAGIC           0x4f47
  32 #define PEN_MAGIC             0x4f47
  33 #define BRUSH_MAGIC           0x4f48
  34 #define FONT_MAGIC            0x4f49
  35 #define PALETTE_MAGIC         0x4f4a
  36 #define BITMAP_MAGIC          0x4f4b
  37 #define REGION_MAGIC          0x4f4c
  38 #define DC_MAGIC              0x4f4d
  39 #define DISABLED_DC_MAGIC     0x4f4e
  40 #define META_DC_MAGIC         0x4f4f
  41 #define METAFILE_MAGIC        0x4f50
  42 #define METAFILE_DC_MAGIC     0x4f51
  43 #define ENHMETAFILE_MAGIC     0x4f52
  44 #define ENHMETAFILE_DC_MAGIC  0x4f53
  45 #define LAST_MAGIC            0x4f53
  46
  47 #define MAGIC_DONTCARE        0xffff
  48
  49 /* GDI constants for making objects private/system (naming undoc. !) */
  50 #define OBJECT_PRIVATE        0x2000
  51 #define OBJECT_NOSYSTEM       0x8000
  52
  53 #define GDIMAGIC(magic) ((magic) & ~(OBJECT_PRIVATE|OBJECT_NOSYSTEM))
  54
  55 struct gdi_obj_funcs
  56 {
  57     HGDIOBJ (*pSelectObject)( HGDIOBJ handle, void *obj, HDC hdc );
  58     INT     (*pGetObject16)( HGDIOBJ handle, void *obj, INT count, LPVOID buffer );
  59     INT     (*pGetObjectA)( HGDIOBJ handle, void *obj, INT count, LPVOID buffer );
  60     INT     (*pGetObjectW)( HGDIOBJ handle, void *obj, INT count, LPVOID buffer );
  61     BOOL    (*pUnrealizeObject)( HGDIOBJ handle, void *obj );
  62     BOOL    (*pDeleteObject)( HGDIOBJ handle, void *obj );
  63 };
  64
  65 typedef struct tagGDIOBJHDR
  66 {
  67     HANDLE16    hNext;
  68     WORD        wMagic;
  69     DWORD       dwCount;
  70     const struct gdi_obj_funcs *funcs;
  71 } GDIOBJHDR;
  72
  73
  74 typedef struct tagGdiFont *GdiFont;
  75
  76 typedef struct { int opaque; } *PHYSDEV;  /* PHYSDEV is an opaque pointer */
  77
  78 typedef struct tagDC
  79 {
  80     GDIOBJHDR    header;
  81     HDC          hSelf;            /* Handle to this DC */
  82     const struct tagDC_FUNCS *funcs; /* DC function table */
  83     PHYSDEV      physDev;         /* Physical device (driver-specific) */
  84     INT          saveLevel;
  85     DWORD        dwHookData;
  86     FARPROC16    hookProc;         /* the original SEGPTR ... */
  87     DCHOOKPROC   hookThunk;        /* ... and the thunk to call it */
  88
  89     INT          wndOrgX;          /* Window origin */
  90     INT          wndOrgY;
  91     INT          wndExtX;          /* Window extent */
  92     INT          wndExtY;
  93     INT          vportOrgX;        /* Viewport origin */
  94     INT          vportOrgY;
  95     INT          vportExtX;        /* Viewport extent */
  96     INT          vportExtY;
  97
  98     int           flags;
  99     HRGN          hClipRgn;     /* Clip region (may be 0) */
 100     HRGN          hVisRgn;      /* Visible region (must never be 0) */
 101     HRGN          hGCClipRgn;   /* GC clip region (ClipRgn AND VisRgn) */
 102     HPEN          hPen;
 103     HBRUSH        hBrush;
 104     HFONT         hFont;
 105     HBITMAP       hBitmap;
 106     HANDLE        hDevice;
 107     HPALETTE      hPalette;
 108
 109     GdiFont       gdiFont;
 110     GdiPath       path;
 111
 112     WORD          ROPmode;
 113     WORD          polyFillMode;
 114     WORD          stretchBltMode;
 115     WORD          relAbsMode;
 116     WORD          backgroundMode;
 117     COLORREF      backgroundColor;
 118     COLORREF      textColor;
 119     short         brushOrgX;
 120     short         brushOrgY;
 121
 122     WORD          textAlign;         /* Text alignment from SetTextAlign() */
 123     short         charExtra;         /* Spacing from SetTextCharacterExtra() */
 124     short         breakTotalExtra;   /* Total extra space for justification */
 125     short         breakCount;        /* Break char. count */
 126     short         breakExtra;        /* breakTotalExtra / breakCount */
 127     short         breakRem;          /* breakTotalExtra % breakCount */
 128
 129     RECT          totalExtent;
 130     BYTE          bitsPerPixel;
 131
 132     INT           MapMode;
 133     INT           GraphicsMode;      /* Graphics mode */
 134     ABORTPROC     pAbortProc;        /* AbortProc for Printing */
 135     ABORTPROC16   pAbortProc16;
 136     INT           CursPosX;          /* Current position */
 137     INT           CursPosY;
 138     INT           ArcDirection;
 139     XFORM         xformWorld2Wnd;    /* World-to-window transformation */
 140     XFORM         xformWorld2Vport;  /* World-to-viewport transformation */
 141     XFORM         xformVport2World;  /* Inverse of the above transformation */
 142     BOOL          vport2WorldValid;  /* Is xformVport2World valid? */
 143 } DC;
 144
 145 /* Device functions for the Wine driver interface */
 146
 147 typedef INT (*DEVICEFONTENUMPROC)(LPENUMLOGFONTEXW,NEWTEXTMETRICEXW *,DWORD,
 148                                   LPARAM);
 149
 150 typedef struct tagDC_FUNCS
 151 {
 152     INT      (*pAbortDoc)(PHYSDEV);
 153     BOOL     (*pAbortPath)(PHYSDEV);
 154     BOOL     (*pAngleArc)(PHYSDEV,INT,INT,DWORD,FLOAT,FLOAT);
 155     BOOL     (*pArc)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
 156     BOOL     (*pArcTo)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
 157     BOOL     (*pBeginPath)(PHYSDEV);
 158     BOOL     (*pBitBlt)(PHYSDEV,INT,INT,INT,INT,PHYSDEV,INT,INT,DWORD);
 159     INT      (*pChoosePixelFormat)(PHYSDEV,const PIXELFORMATDESCRIPTOR *);
 160     BOOL     (*pChord)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
 161     BOOL     (*pCloseFigure)(PHYSDEV);
 162     BOOL     (*pCreateBitmap)(PHYSDEV,HBITMAP);
 163     BOOL     (*pCreateDC)(DC *,PHYSDEV *,LPCSTR,LPCSTR,LPCSTR,const DEVMODEA*);
 164     HBITMAP  (*pCreateDIBSection)(PHYSDEV,BITMAPINFO *,UINT,LPVOID *,HANDLE,DWORD,DWORD);
 165     BOOL     (*pDeleteBitmap)(HBITMAP);
 166     BOOL     (*pDeleteDC)(PHYSDEV);
 167     INT      (*pDescribePixelFormat)(PHYSDEV,INT,UINT,PIXELFORMATDESCRIPTOR *);
 168     DWORD    (*pDeviceCapabilities)(LPSTR,LPCSTR,LPCSTR,WORD,LPSTR,LPDEVMODEA);
 169     BOOL     (*pEllipse)(PHYSDEV,INT,INT,INT,INT);
 170     INT      (*pEndDoc)(PHYSDEV);
 171     INT      (*pEndPage)(PHYSDEV);
 172     BOOL     (*pEndPath)(PHYSDEV);
 173     BOOL     (*pEnumDeviceFonts)(PHYSDEV,LPLOGFONTW,DEVICEFONTENUMPROC,LPARAM);
 174     INT      (*pExcludeClipRect)(PHYSDEV,INT,INT,INT,INT);
 175     INT      (*pExtDeviceMode)(LPSTR,HWND,LPDEVMODEA,LPSTR,LPSTR,LPDEVMODEA,LPSTR,DWORD);
 176     INT      (*pExtEscape)(PHYSDEV,INT,INT,LPCVOID,INT,LPVOID);
 177     BOOL     (*pExtFloodFill)(PHYSDEV,INT,INT,COLORREF,UINT);
 178     INT      (*pExtSelectClipRgn)(PHYSDEV,HRGN,INT);
 179     BOOL     (*pExtTextOut)(PHYSDEV,INT,INT,UINT,const RECT*,LPCWSTR,UINT,const INT*);
 180     BOOL     (*pFillPath)(PHYSDEV);
 181     BOOL     (*pFillRgn)(PHYSDEV,HRGN,HBRUSH);
 182     BOOL     (*pFlattenPath)(PHYSDEV);
 183     BOOL     (*pFrameRgn)(PHYSDEV,HRGN,HBRUSH,INT,INT);
 184     LONG     (*pGetBitmapBits)(HBITMAP,void*,LONG);
 185     BOOL     (*pGetCharWidth)(PHYSDEV,UINT,UINT,LPINT);
 186     BOOL     (*pGetDCOrgEx)(PHYSDEV,LPPOINT);
 187     UINT     (*pGetDIBColorTable)(PHYSDEV,UINT,UINT,RGBQUAD*);
 188     INT      (*pGetDIBits)(PHYSDEV,HBITMAP,UINT,UINT,LPVOID,BITMAPINFO*,UINT);
 189     INT      (*pGetDeviceCaps)(PHYSDEV,INT);
 190     BOOL     (*pGetDeviceGammaRamp)(PHYSDEV,LPVOID);
 191     COLORREF (*pGetNearestColor)(PHYSDEV,COLORREF);
 192     COLORREF (*pGetPixel)(PHYSDEV,INT,INT);
 193     INT      (*pGetPixelFormat)(PHYSDEV);
 194     UINT     (*pGetSystemPaletteEntries)(PHYSDEV,UINT,UINT,LPPALETTEENTRY);
 195     BOOL     (*pGetTextExtentPoint)(PHYSDEV,LPCWSTR,INT,LPSIZE);
 196     BOOL     (*pGetTextMetrics)(PHYSDEV,TEXTMETRICW*);
 197     INT      (*pIntersectClipRect)(PHYSDEV,INT,INT,INT,INT);
 198     BOOL     (*pInvertRgn)(PHYSDEV,HRGN);
 199     BOOL     (*pLineTo)(PHYSDEV,INT,INT);
 200     BOOL     (*pMoveTo)(PHYSDEV,INT,INT);
 201     INT      (*pOffsetClipRgn)(PHYSDEV,INT,INT);
 202     INT      (*pOffsetViewportOrg)(PHYSDEV,INT,INT);
 203     INT      (*pOffsetWindowOrg)(PHYSDEV,INT,INT);
 204     BOOL     (*pPaintRgn)(PHYSDEV,HRGN);
 205     BOOL     (*pPatBlt)(PHYSDEV,INT,INT,INT,INT,DWORD);
 206     BOOL     (*pPie)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
 207     BOOL     (*pPolyBezier)(PHYSDEV,const POINT*,DWORD);
 208     BOOL     (*pPolyBezierTo)(PHYSDEV,const POINT*,DWORD);
 209     BOOL     (*pPolyDraw)(PHYSDEV,const POINT*,const BYTE *,DWORD);
 210     BOOL     (*pPolyPolygon)(PHYSDEV,const POINT*,const INT*,UINT);
 211     BOOL     (*pPolyPolyline)(PHYSDEV,const POINT*,const DWORD*,DWORD);
 212     BOOL     (*pPolygon)(PHYSDEV,const POINT*,INT);
 213     BOOL     (*pPolyline)(PHYSDEV,const POINT*,INT);
 214     BOOL     (*pPolylineTo)(PHYSDEV,const POINT*,INT);
 215     UINT     (*pRealizeDefaultPalette)(PHYSDEV);
 216     UINT     (*pRealizePalette)(PHYSDEV,HPALETTE,BOOL);
 217     BOOL     (*pRectangle)(PHYSDEV,INT,INT,INT,INT);
 218     HDC      (*pResetDC)(PHYSDEV,const DEVMODEA*);
 219     BOOL     (*pRestoreDC)(PHYSDEV,INT);
 220     BOOL     (*pRoundRect)(PHYSDEV,INT,INT,INT,INT,INT,INT);
 221     INT      (*pSaveDC)(PHYSDEV);
 222     INT      (*pScaleViewportExt)(PHYSDEV,INT,INT,INT,INT);
 223     INT      (*pScaleWindowExt)(PHYSDEV,INT,INT,INT,INT);
 224     HBITMAP  (*pSelectBitmap)(PHYSDEV,HBITMAP);
 225     HBRUSH   (*pSelectBrush)(PHYSDEV,HBRUSH);
 226     BOOL     (*pSelectClipPath)(PHYSDEV,INT);
 227     HFONT    (*pSelectFont)(PHYSDEV,HFONT);
 228     HPALETTE (*pSelectPalette)(PHYSDEV,HPALETTE,BOOL);
 229     HPEN     (*pSelectPen)(PHYSDEV,HPEN);
 230     LONG     (*pSetBitmapBits)(HBITMAP,const void*,LONG);
 231     COLORREF (*pSetBkColor)(PHYSDEV,COLORREF);
 232     INT      (*pSetBkMode)(PHYSDEV,INT);
 233     DWORD    (*pSetDCOrg)(PHYSDEV,INT,INT);
 234     UINT     (*pSetDIBColorTable)(PHYSDEV,UINT,UINT,const RGBQUAD*);
 235     INT      (*pSetDIBits)(PHYSDEV,HBITMAP,UINT,UINT,LPCVOID,const BITMAPINFO*,UINT);
 236     INT      (*pSetDIBitsToDevice)(PHYSDEV,INT,INT,DWORD,DWORD,INT,INT,UINT,UINT,LPCVOID,
 237                                    const BITMAPINFO*,UINT);
 238     VOID     (*pSetDeviceClipping)(PHYSDEV,HRGN);
 239     BOOL     (*pSetDeviceGammaRamp)(PHYSDEV,LPVOID);
 240     INT      (*pSetMapMode)(PHYSDEV,INT);
 241     DWORD    (*pSetMapperFlags)(PHYSDEV,DWORD);
 242     COLORREF (*pSetPixel)(PHYSDEV,INT,INT,COLORREF);
 243     BOOL     (*pSetPixelFormat)(PHYSDEV,INT,const PIXELFORMATDESCRIPTOR *);
 244     INT      (*pSetPolyFillMode)(PHYSDEV,INT);
 245     INT      (*pSetROP2)(PHYSDEV,INT);
 246     INT      (*pSetRelAbs)(PHYSDEV,INT);
 247     INT      (*pSetStretchBltMode)(PHYSDEV,INT);
 248     UINT     (*pSetTextAlign)(PHYSDEV,UINT);
 249     INT      (*pSetTextCharacterExtra)(PHYSDEV,INT);
 250     DWORD    (*pSetTextColor)(PHYSDEV,DWORD);
 251     INT      (*pSetTextJustification)(PHYSDEV,INT,INT);
 252     INT      (*pSetViewportExt)(PHYSDEV,INT,INT);
 253     INT      (*pSetViewportOrg)(PHYSDEV,INT,INT);
 254     INT      (*pSetWindowExt)(PHYSDEV,INT,INT);
 255     INT      (*pSetWindowOrg)(PHYSDEV,INT,INT);
 256     INT      (*pStartDoc)(PHYSDEV,const DOCINFOA*);
 257     INT      (*pStartPage)(PHYSDEV);
 258     BOOL     (*pStretchBlt)(PHYSDEV,INT,INT,INT,INT,PHYSDEV,INT,INT,INT,INT,DWORD);
 259     INT      (*pStretchDIBits)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT,const void *,
 260                                const BITMAPINFO*,UINT,DWORD);
 261     BOOL     (*pStrokeAndFillPath)(PHYSDEV);
 262     BOOL     (*pStrokePath)(PHYSDEV);
 263     BOOL     (*pSwapBuffers)(PHYSDEV);
 264     BOOL     (*pWidenPath)(PHYSDEV);
 265 } DC_FUNCTIONS;
 266
 267 /* Certain functions will do no further processing if the driver returns this.
 268    Used by mfdrv for example. */
 269 #define GDI_NO_MORE_WORK 2
 270
 271   /* DC hook codes */
 272 #define DCHC_INVALIDVISRGN      0x0001
 273 #define DCHC_DELETEDC           0x0002
 274
 275 #define DCHF_INVALIDATEVISRGN   0x0001
 276 #define DCHF_VALIDATEVISRGN     0x0002
 277
 278   /* DC flags */
 279 #define DC_MEMORY     0x0001   /* It is a memory DC */
 280 #define DC_SAVED      0x0002   /* It is a saved DC */
 281 #define DC_DIRTY      0x0004   /* hVisRgn has to be updated */
 282 #define DC_THUNKHOOK  0x0008   /* DC hook is in the 16-bit code */
 283
 284 #define GDI_HEAP_SIZE 0xffe0
 285
 286 /* extra stock object: default 1x1 bitmap for memory DCs */
 287 #define DEFAULT_BITMAP (STOCK_LAST+1)
 288
 289 /* Metafile defines */
 290
 291 #define META_EOF 0x0000
 292 /* values of mtType in METAHEADER.  Note however that the disk image of a disk
 293    based metafile has mtType == 1 */
 294 #define METAFILE_MEMORY 1
 295 #define METAFILE_DISK   2
 296
 297 /* Rounds a floating point number to integer. The world-to-viewport
 298  * transformation process is done in floating point internally. This function
 299  * is then used to round these coordinates to integer values.
 300  */
 301 static inline INT WINE_UNUSED GDI_ROUND(FLOAT val)
 302 {
 303    return (int)floor(val + 0.5);
 304 }
 305
 306   /* World -> Device size conversion */
 307
 308 /* Performs a world-to-viewport transformation on the specified width (which
 309  * is in floating point format).
 310  */
 311 static inline void WINE_UNUSED INTERNAL_XWSTODS_FLOAT(DC *dc, FLOAT *width)
 312 {
 313     /* Perform the transformation */
 314     *width = *width * dc->xformWorld2Vport.eM11;
 315 }
 316
 317 /* Performs a world-to-viewport transformation on the specified width (which
 318  * is in integer format).
 319  */
 320 static inline INT WINE_UNUSED INTERNAL_XWSTODS(DC *dc, INT width)
 321 {
 322     FLOAT floatWidth;
 323
 324     /* Perform operation with floating point */
 325     floatWidth = (FLOAT)width;
 326     INTERNAL_XWSTODS_FLOAT(dc, &floatWidth);
 327
 328     /* Round to integers */
 329     return GDI_ROUND(floatWidth);
 330 }
 331
 332
 333 /* Performs a world-to-viewport transformation on the specified size (which
 334  * is in floating point format).
 335  */
 336 static inline void WINE_UNUSED INTERNAL_YWSTODS_FLOAT(DC *dc, FLOAT *height)
 337 {
 338     /* Perform the transformation */
 339     *height = *height * dc->xformWorld2Vport.eM22;
 340 }
 341
 342 /* Performs a world-to-viewport transformation on the specified size (which
 343  * is in integer format).
 344  */
 345 static inline INT WINE_UNUSED INTERNAL_YWSTODS(DC *dc, INT height)
 346 {
 347     FLOAT floatHeight;
 348
 349     /* Perform operation with floating point */
 350     floatHeight = (FLOAT)height;
 351     INTERNAL_YWSTODS_FLOAT(dc, &floatHeight);
 352
 353     /* Round to integers */
 354     return GDI_ROUND(floatHeight);
 355 }
 356
 357
 358   /* Device -> World size conversion */
 359
 360 /* Performs a device to world transformation on the specified width (which
 361  * is in floating point format).
 362  */
 363 static inline void INTERNAL_XDSTOWS_FLOAT(DC *dc, FLOAT *width)
 364 {
 365     /* Perform the transformation */
 366     *width = *width * dc->xformVport2World.eM11;
 367 }
 368
 369 /* Performs a device to world transformation on the specified width (which
 370  * is in integer format).
 371  */
 372 static inline INT INTERNAL_XDSTOWS(DC *dc, INT width)
 373 {
 374     FLOAT floatWidth;
 375
 376     /* Perform operation with floating point */
 377     floatWidth = (FLOAT)width;
 378     INTERNAL_XDSTOWS_FLOAT(dc, &floatWidth);
 379
 380     /* Round to integers */
 381     return GDI_ROUND(floatWidth);
 382 }
 383
 384
 385 /* Performs a device to world transformation on the specified size (which
 386  * is in floating point format).
 387  */
 388 static inline void INTERNAL_YDSTOWS_FLOAT(DC *dc, FLOAT *height)
 389 {
 390     /* Perform the transformation */
 391     *height = *height * dc->xformVport2World.eM22;
 392 }
 393
 394 /* Performs a device to world transformation on the specified size (which
 395  * is in integer format).
 396  */
 397 static inline INT INTERNAL_YDSTOWS(DC *dc, INT height)
 398 {
 399     FLOAT floatHeight;
 400
 401     /* Perform operation with floating point */
 402     floatHeight = (FLOAT)height;
 403     INTERNAL_YDSTOWS_FLOAT(dc, &floatHeight);
 404
 405     /* Round to integers */
 406     return GDI_ROUND(floatHeight);
 407 }
 408
 409
 410   /* Device <-> logical size conversion */
 411
 412 #define XDSTOLS(dc,x) \
 413     MulDiv((x), (dc)->wndExtX, (dc)->vportExtX)
 414 #define YDSTOLS(dc,y) \
 415     MulDiv((y), (dc)->wndExtY, (dc)->vportExtY)
 416 #define XLSTODS(dc,x) \
 417     MulDiv((x), (dc)->vportExtX, (dc)->wndExtX)
 418 #define YLSTODS(dc,y) \
 419     MulDiv((y), (dc)->vportExtY, (dc)->wndExtY)
 420
 421   /* GDI local heap */
 422
 423 extern BOOL GDI_Init(void);
 424 extern void *GDI_AllocObject( WORD, WORD, HGDIOBJ *, const struct gdi_obj_funcs *funcs );
 425 extern void *GDI_ReallocObject( WORD, HGDIOBJ, void *obj );
 426 extern BOOL GDI_FreeObject( HGDIOBJ, void *obj );
 427 extern void *GDI_GetObjPtr( HGDIOBJ, WORD );
 428 extern void GDI_ReleaseObj( HGDIOBJ );
 429 extern void GDI_CheckNotLock(void);
 430
 431 extern const DC_FUNCTIONS *DRIVER_load_driver( LPCSTR name );
 432 extern const DC_FUNCTIONS *DRIVER_get_driver( const DC_FUNCTIONS *funcs );
 433 extern void DRIVER_release_driver( const DC_FUNCTIONS *funcs );
 434 extern BOOL DRIVER_GetDriverName( LPCSTR device, LPSTR driver, DWORD size );
 435
 436 extern POINT *GDI_Bezier( const POINT *Points, INT count, INT *nPtsOut );
 437
 438 extern DC * DC_AllocDC( const DC_FUNCTIONS *funcs );
 439 extern DC * DC_GetDCPtr( HDC hdc );
 440 extern DC * DC_GetDCUpdate( HDC hdc );
 441 extern void DC_InitDC( DC * dc );
 442 extern void DC_UpdateXforms( DC * dc );
 443
 444 /* clipping.c */
 445 extern void CLIPPING_UpdateGCRegion( DC * dc );
 446
 447 /* enhmetafile.c */
 448 extern HENHMETAFILE EMF_Create_HENHMETAFILE(ENHMETAHEADER *emh, BOOL on_disk );
 449
 450 /* metafile.c */
 451 extern HMETAFILE MF_Create_HMETAFILE(METAHEADER *mh);
 452 extern HMETAFILE16 MF_Create_HMETAFILE16(METAHEADER *mh);
 453 extern METAHEADER *MF_CreateMetaHeaderDisk(METAHEADER *mr, LPCSTR filename);
 454
 455 /* region.c */
 456 extern BOOL REGION_FrameRgn( HRGN dest, HRGN src, INT x, INT y );
 457
 458 /* palette.c */
 459 extern HPALETTE WINAPI GDISelectPalette( HDC hdc, HPALETTE hpal, WORD wBkg);
 460 extern UINT WINAPI GDIRealizePalette( HDC hdc );
 461
 462 #define WINE_GGO_GRAY16_BITMAP 0x7f
 463
 464 #endif  /* __WINE_GDI_H */