dlls/gdi/gdi_private.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_PRIVATE_H
  22 #define __WINE_GDI_PRIVATE_H
  23
  24 /* Metafile defines */
  25 #define META_EOF 0x0000
  26 /* values of mtType in METAHEADER.  Note however that the disk image of a disk
  27    based metafile has mtType == 1 */
  28 #define METAFILE_MEMORY 1
  29 #define METAFILE_DISK   2
  30
  31 /* extra stock object: default 1x1 bitmap for memory DCs */
  32 #define DEFAULT_BITMAP (STOCK_LAST+1)
  33
  34 struct gdi_obj_funcs
  35 {
  36     HGDIOBJ (*pSelectObject)( HGDIOBJ handle, void *obj, HDC hdc );
  37     INT     (*pGetObject16)( HGDIOBJ handle, void *obj, INT count, LPVOID buffer );
  38     INT     (*pGetObjectA)( HGDIOBJ handle, void *obj, INT count, LPVOID buffer );
  39     INT     (*pGetObjectW)( HGDIOBJ handle, void *obj, INT count, LPVOID buffer );
  40     BOOL    (*pUnrealizeObject)( HGDIOBJ handle, void *obj );
  41     BOOL    (*pDeleteObject)( HGDIOBJ handle, void *obj );
  42 };
  43
  44 struct hdc_list
  45 {
  46     HDC hdc;
  47     struct hdc_list *next;
  48 };
  49
  50 /* Device functions for the Wine driver interface */
  51
  52 typedef struct { int opaque; } *PHYSDEV;  /* PHYSDEV is an opaque pointer */
  53
  54 typedef struct tagDC_FUNCS
  55 {
  56     INT      (*pAbortDoc)(PHYSDEV);
  57     BOOL     (*pAbortPath)(PHYSDEV);
  58     BOOL     (*pAlphaBlend)(PHYSDEV,INT,INT,INT,INT,PHYSDEV,INT,INT,INT,INT,BLENDFUNCTION);
  59     BOOL     (*pAngleArc)(PHYSDEV,INT,INT,DWORD,FLOAT,FLOAT);
  60     BOOL     (*pArc)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
  61     BOOL     (*pArcTo)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
  62     BOOL     (*pBeginPath)(PHYSDEV);
  63     BOOL     (*pBitBlt)(PHYSDEV,INT,INT,INT,INT,PHYSDEV,INT,INT,DWORD);
  64     INT      (*pChoosePixelFormat)(PHYSDEV,const PIXELFORMATDESCRIPTOR *);
  65     BOOL     (*pChord)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
  66     BOOL     (*pCloseFigure)(PHYSDEV);
  67     BOOL     (*pCreateBitmap)(PHYSDEV,HBITMAP);
  68     BOOL     (*pCreateDC)(HDC,PHYSDEV *,LPCWSTR,LPCWSTR,LPCWSTR,const DEVMODEW*);
  69     HBITMAP  (*pCreateDIBSection)(PHYSDEV,HBITMAP,const BITMAPINFO *,UINT);
  70     BOOL     (*pDeleteBitmap)(HBITMAP);
  71     BOOL     (*pDeleteDC)(PHYSDEV);
  72     BOOL     (*pDeleteObject)(PHYSDEV,HGDIOBJ);
  73     INT      (*pDescribePixelFormat)(PHYSDEV,INT,UINT,PIXELFORMATDESCRIPTOR *);
  74     DWORD    (*pDeviceCapabilities)(LPSTR,LPCSTR,LPCSTR,WORD,LPSTR,LPDEVMODEA);
  75     BOOL     (*pEllipse)(PHYSDEV,INT,INT,INT,INT);
  76     INT      (*pEndDoc)(PHYSDEV);
  77     INT      (*pEndPage)(PHYSDEV);
  78     BOOL     (*pEndPath)(PHYSDEV);
  79     BOOL     (*pEnumDeviceFonts)(PHYSDEV,LPLOGFONTW,FONTENUMPROCW,LPARAM);
  80     INT      (*pExcludeClipRect)(PHYSDEV,INT,INT,INT,INT);
  81     INT      (*pExtDeviceMode)(LPSTR,HWND,LPDEVMODEA,LPSTR,LPSTR,LPDEVMODEA,LPSTR,DWORD);
  82     INT      (*pExtEscape)(PHYSDEV,INT,INT,LPCVOID,INT,LPVOID);
  83     BOOL     (*pExtFloodFill)(PHYSDEV,INT,INT,COLORREF,UINT);
  84     INT      (*pExtSelectClipRgn)(PHYSDEV,HRGN,INT);
  85     BOOL     (*pExtTextOut)(PHYSDEV,INT,INT,UINT,const RECT*,LPCWSTR,UINT,const INT*);
  86     BOOL     (*pFillPath)(PHYSDEV);
  87     BOOL     (*pFillRgn)(PHYSDEV,HRGN,HBRUSH);
  88     BOOL     (*pFlattenPath)(PHYSDEV);
  89     BOOL     (*pFrameRgn)(PHYSDEV,HRGN,HBRUSH,INT,INT);
  90     BOOL     (*pGdiComment)(PHYSDEV,UINT,CONST BYTE*);
  91     LONG     (*pGetBitmapBits)(HBITMAP,void*,LONG);
  92     BOOL     (*pGetCharWidth)(PHYSDEV,UINT,UINT,LPINT);
  93     BOOL     (*pGetDCOrgEx)(PHYSDEV,LPPOINT);
  94     UINT     (*pGetDIBColorTable)(PHYSDEV,UINT,UINT,RGBQUAD*);
  95     INT      (*pGetDIBits)(PHYSDEV,HBITMAP,UINT,UINT,LPVOID,BITMAPINFO*,UINT);
  96     INT      (*pGetDeviceCaps)(PHYSDEV,INT);
  97     BOOL     (*pGetDeviceGammaRamp)(PHYSDEV,LPVOID);
  98     COLORREF (*pGetNearestColor)(PHYSDEV,COLORREF);
  99     COLORREF (*pGetPixel)(PHYSDEV,INT,INT);
 100     INT      (*pGetPixelFormat)(PHYSDEV);
 101     UINT     (*pGetSystemPaletteEntries)(PHYSDEV,UINT,UINT,LPPALETTEENTRY);
 102     BOOL     (*pGetTextExtentPoint)(PHYSDEV,LPCWSTR,INT,LPSIZE);
 103     BOOL     (*pGetTextMetrics)(PHYSDEV,TEXTMETRICW*);
 104     INT      (*pIntersectClipRect)(PHYSDEV,INT,INT,INT,INT);
 105     BOOL     (*pInvertRgn)(PHYSDEV,HRGN);
 106     BOOL     (*pLineTo)(PHYSDEV,INT,INT);
 107     BOOL     (*pModifyWorldTransform)(PHYSDEV,const XFORM*,INT);
 108     BOOL     (*pMoveTo)(PHYSDEV,INT,INT);
 109     INT      (*pOffsetClipRgn)(PHYSDEV,INT,INT);
 110     INT      (*pOffsetViewportOrg)(PHYSDEV,INT,INT);
 111     INT      (*pOffsetWindowOrg)(PHYSDEV,INT,INT);
 112     BOOL     (*pPaintRgn)(PHYSDEV,HRGN);
 113     BOOL     (*pPatBlt)(PHYSDEV,INT,INT,INT,INT,DWORD);
 114     BOOL     (*pPie)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT);
 115     BOOL     (*pPolyBezier)(PHYSDEV,const POINT*,DWORD);
 116     BOOL     (*pPolyBezierTo)(PHYSDEV,const POINT*,DWORD);
 117     BOOL     (*pPolyDraw)(PHYSDEV,const POINT*,const BYTE *,DWORD);
 118     BOOL     (*pPolyPolygon)(PHYSDEV,const POINT*,const INT*,UINT);
 119     BOOL     (*pPolyPolyline)(PHYSDEV,const POINT*,const DWORD*,DWORD);
 120     BOOL     (*pPolygon)(PHYSDEV,const POINT*,INT);
 121     BOOL     (*pPolyline)(PHYSDEV,const POINT*,INT);
 122     BOOL     (*pPolylineTo)(PHYSDEV,const POINT*,INT);
 123     UINT     (*pRealizeDefaultPalette)(PHYSDEV);
 124     UINT     (*pRealizePalette)(PHYSDEV,HPALETTE,BOOL);
 125     BOOL     (*pRectangle)(PHYSDEV,INT,INT,INT,INT);
 126     HDC      (*pResetDC)(PHYSDEV,const DEVMODEW*);
 127     BOOL     (*pRestoreDC)(PHYSDEV,INT);
 128     BOOL     (*pRoundRect)(PHYSDEV,INT,INT,INT,INT,INT,INT);
 129     INT      (*pSaveDC)(PHYSDEV);
 130     INT      (*pScaleViewportExt)(PHYSDEV,INT,INT,INT,INT);
 131     INT      (*pScaleWindowExt)(PHYSDEV,INT,INT,INT,INT);
 132     HBITMAP  (*pSelectBitmap)(PHYSDEV,HBITMAP);
 133     HBRUSH   (*pSelectBrush)(PHYSDEV,HBRUSH);
 134     BOOL     (*pSelectClipPath)(PHYSDEV,INT);
 135     HFONT    (*pSelectFont)(PHYSDEV,HFONT,HANDLE);
 136     HPALETTE (*pSelectPalette)(PHYSDEV,HPALETTE,BOOL);
 137     HPEN     (*pSelectPen)(PHYSDEV,HPEN);
 138     INT      (*pSetArcDirection)(PHYSDEV,INT);
 139     LONG     (*pSetBitmapBits)(HBITMAP,const void*,LONG);
 140     COLORREF (*pSetBkColor)(PHYSDEV,COLORREF);
 141     INT      (*pSetBkMode)(PHYSDEV,INT);
 142     COLORREF (*pSetDCBrushColor)(PHYSDEV, COLORREF);
 143     DWORD    (*pSetDCOrg)(PHYSDEV,INT,INT);
 144     COLORREF (*pSetDCPenColor)(PHYSDEV, COLORREF);
 145     UINT     (*pSetDIBColorTable)(PHYSDEV,UINT,UINT,const RGBQUAD*);
 146     INT      (*pSetDIBits)(PHYSDEV,HBITMAP,UINT,UINT,LPCVOID,const BITMAPINFO*,UINT);
 147     INT      (*pSetDIBitsToDevice)(PHYSDEV,INT,INT,DWORD,DWORD,INT,INT,UINT,UINT,LPCVOID,
 148                                    const BITMAPINFO*,UINT);
 149     VOID     (*pSetDeviceClipping)(PHYSDEV,HRGN,HRGN);
 150     BOOL     (*pSetDeviceGammaRamp)(PHYSDEV,LPVOID);
 151     INT      (*pSetMapMode)(PHYSDEV,INT);
 152     DWORD    (*pSetMapperFlags)(PHYSDEV,DWORD);
 153     COLORREF (*pSetPixel)(PHYSDEV,INT,INT,COLORREF);
 154     BOOL     (*pSetPixelFormat)(PHYSDEV,INT,const PIXELFORMATDESCRIPTOR *);
 155     INT      (*pSetPolyFillMode)(PHYSDEV,INT);
 156     INT      (*pSetROP2)(PHYSDEV,INT);
 157     INT      (*pSetRelAbs)(PHYSDEV,INT);
 158     INT      (*pSetStretchBltMode)(PHYSDEV,INT);
 159     UINT     (*pSetTextAlign)(PHYSDEV,UINT);
 160     INT      (*pSetTextCharacterExtra)(PHYSDEV,INT);
 161     DWORD    (*pSetTextColor)(PHYSDEV,DWORD);
 162     INT      (*pSetTextJustification)(PHYSDEV,INT,INT);
 163     INT      (*pSetViewportExt)(PHYSDEV,INT,INT);
 164     INT      (*pSetViewportOrg)(PHYSDEV,INT,INT);
 165     INT      (*pSetWindowExt)(PHYSDEV,INT,INT);
 166     INT      (*pSetWindowOrg)(PHYSDEV,INT,INT);
 167     BOOL     (*pSetWorldTransform)(PHYSDEV,const XFORM*);
 168     INT      (*pStartDoc)(PHYSDEV,const DOCINFOW*);
 169     INT      (*pStartPage)(PHYSDEV);
 170     BOOL     (*pStretchBlt)(PHYSDEV,INT,INT,INT,INT,PHYSDEV,INT,INT,INT,INT,DWORD);
 171     INT      (*pStretchDIBits)(PHYSDEV,INT,INT,INT,INT,INT,INT,INT,INT,const void *,
 172                                const BITMAPINFO*,UINT,DWORD);
 173     BOOL     (*pStrokeAndFillPath)(PHYSDEV);
 174     BOOL     (*pStrokePath)(PHYSDEV);
 175     BOOL     (*pSwapBuffers)(PHYSDEV);
 176     BOOL     (*pWidenPath)(PHYSDEV);
 177 } DC_FUNCTIONS;
 178
 179 /* It should not be necessary to access the contents of the GdiPath
 180  * structure directly; if you find that the exported functions don't
 181  * allow you to do what you want, then please place a new exported
 182  * function that does this job in path.c.
 183  */
 184 typedef enum tagGdiPathState
 185 {
 186    PATH_Null,
 187    PATH_Open,
 188    PATH_Closed
 189 } GdiPathState;
 190
 191 typedef struct tagGdiPath
 192 {
 193    GdiPathState state;
 194    POINT      *pPoints;
 195    BYTE         *pFlags;
 196    int          numEntriesUsed, numEntriesAllocated;
 197    BOOL       newStroke;
 198 } GdiPath;
 199
 200 typedef struct tagGdiFont *GdiFont;
 201
 202 struct saved_visrgn
 203 {
 204     struct saved_visrgn *next;
 205     HRGN                 hrgn;
 206 };
 207
 208 typedef struct tagDC
 209 {
 210     GDIOBJHDR    header;
 211     HDC          hSelf;            /* Handle to this DC */
 212     const struct tagDC_FUNCS *funcs; /* DC function table */
 213     PHYSDEV      physDev;         /* Physical device (driver-specific) */
 214     INT          saveLevel;
 215     HDC          saved_dc;
 216     DWORD        dwHookData;
 217     FARPROC16    hookProc;         /* the original SEGPTR ... */
 218     DCHOOKPROC   hookThunk;        /* ... and the thunk to call it */
 219
 220     INT          wndOrgX;          /* Window origin */
 221     INT          wndOrgY;
 222     INT          wndExtX;          /* Window extent */
 223     INT          wndExtY;
 224     INT          vportOrgX;        /* Viewport origin */
 225     INT          vportOrgY;
 226     INT          vportExtX;        /* Viewport extent */
 227     INT          vportExtY;
 228     FLOAT        miterLimit;
 229
 230     int           flags;
 231     DWORD         layout;
 232     HRGN          hClipRgn;      /* Clip region (may be 0) */
 233     HRGN          hMetaRgn;      /* Meta region (may be 0) */
 234     HRGN          hMetaClipRgn;  /* Intersection of meta and clip regions (may be 0) */
 235     HRGN          hVisRgn;       /* Visible region (must never be 0) */
 236     HPEN          hPen;
 237     HBRUSH        hBrush;
 238     HFONT         hFont;
 239     HBITMAP       hBitmap;
 240     HANDLE        hDevice;
 241     HPALETTE      hPalette;
 242
 243     GdiFont       gdiFont;
 244     GdiPath       path;
 245
 246     WORD          ROPmode;
 247     WORD          polyFillMode;
 248     WORD          stretchBltMode;
 249     WORD          relAbsMode;
 250     WORD          backgroundMode;
 251     COLORREF      backgroundColor;
 252     COLORREF      textColor;
 253     COLORREF      dcBrushColor;
 254     COLORREF      dcPenColor;
 255     short         brushOrgX;
 256     short         brushOrgY;
 257
 258     WORD          textAlign;         /* Text alignment from SetTextAlign() */
 259     INT           charExtra;         /* Spacing from SetTextCharacterExtra() */
 260     INT           breakExtra;        /* breakTotalExtra / breakCount */
 261     INT           breakRem;          /* breakTotalExtra % breakCount */
 262     INT           MapMode;
 263     INT           GraphicsMode;      /* Graphics mode */
 264     ABORTPROC     pAbortProc;        /* AbortProc for Printing */
 265     ABORTPROC16   pAbortProc16;
 266     INT           CursPosX;          /* Current position */
 267     INT           CursPosY;
 268     INT           ArcDirection;
 269     XFORM         xformWorld2Wnd;    /* World-to-window transformation */
 270     XFORM         xformWorld2Vport;  /* World-to-viewport transformation */
 271     XFORM         xformVport2World;  /* Inverse of the above transformation */
 272     BOOL          vport2WorldValid;  /* Is xformVport2World valid? */
 273     RECT          BoundsRect;        /* Current bounding rect */
 274
 275     struct saved_visrgn *saved_visrgn;
 276 } DC;
 277
 278   /* DC flags */
 279 #define DC_SAVED         0x0002   /* It is a saved DC */
 280 #define DC_DIRTY         0x0004   /* hVisRgn has to be updated */
 281 #define DC_BOUNDS_ENABLE 0x0008   /* Bounding rectangle tracking is enabled */
 282 #define DC_BOUNDS_SET    0x0010   /* Bounding rectangle has been set */
 283
 284 /* Certain functions will do no further processing if the driver returns this.
 285    Used by mfdrv for example. */
 286 #define GDI_NO_MORE_WORK 2
 287
 288 /* Rounds a floating point number to integer. The world-to-viewport
 289  * transformation process is done in floating point internally. This function
 290  * is then used to round these coordinates to integer values.
 291  */
 292 static inline INT GDI_ROUND(FLOAT val)
 293 {
 294    return (int)floor(val + 0.5);
 295 }
 296
 297 /* bitmap object */
 298
 299 typedef struct tagBITMAPOBJ
 300 {
 301     GDIOBJHDR           header;
 302     BITMAP              bitmap;
 303     SIZE                size;   /* For SetBitmapDimension() */
 304     const DC_FUNCTIONS *funcs; /* DC function table */
 305     /* For device-independent bitmaps: */
 306     DIBSECTION         *dib;
 307     SEGPTR              segptr_bits;  /* segptr to DIB bits */
 308 } BITMAPOBJ;
 309
 310 /* bidi.c */
 311
 312 /* Wine_GCPW Flags */
 313 /* Directionality -
 314  * LOOSE means that the paragraph dir is only set if there is no strong character.
 315  * FORCE means override the characters in the paragraph.
 316  */
 317 #define WINE_GCPW_FORCE_LTR 0
 318 #define WINE_GCPW_FORCE_RTL 1
 319 #define WINE_GCPW_LOOSE_LTR 2
 320 #define WINE_GCPW_LOOSE_RTL 3
 321 #define WINE_GCPW_DIR_MASK 3
 322 extern BOOL BIDI_Reorder( LPCWSTR lpString, INT uCount, DWORD dwFlags, DWORD dwWineGCP_Flags,
 323                           LPWSTR lpOutString, INT uCountOut, UINT *lpOrder );
 324 extern BOOL BidiAvail;
 325
 326 /* bitmap.c */
 327 extern HBITMAP BITMAP_CopyBitmap( HBITMAP hbitmap );
 328 extern BOOL BITMAP_SetOwnerDC( HBITMAP hbitmap, DC *dc );
 329 extern INT BITMAP_GetWidthBytes( INT bmWidth, INT bpp );
 330
 331 /* clipping.c */
 332 extern void CLIPPING_UpdateGCRegion( DC * dc );
 333
 334 /* dc.c */
 335 extern DC * DC_AllocDC( const DC_FUNCTIONS *funcs, WORD magic );
 336 extern DC * DC_GetDCUpdate( HDC hdc );
 337 extern DC * DC_GetDCPtr( HDC hdc );
 338 extern void DC_InitDC( DC * dc );
 339 extern void DC_UpdateXforms( DC * dc );
 340
 341 /* dib.c */
 342 extern int DIB_GetDIBWidthBytes( int width, int depth );
 343 extern int DIB_GetDIBImageBytes( int width, int height, int depth );
 344 extern int DIB_BitmapInfoSize( const BITMAPINFO * info, WORD coloruse );
 345
 346 /* driver.c */
 347 extern const DC_FUNCTIONS *DRIVER_load_driver( LPCWSTR name );
 348 extern const DC_FUNCTIONS *DRIVER_get_driver( const DC_FUNCTIONS *funcs );
 349 extern void DRIVER_release_driver( const DC_FUNCTIONS *funcs );
 350 extern BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size );
 351
 352 /* enhmetafile.c */
 353 extern HENHMETAFILE EMF_Create_HENHMETAFILE(ENHMETAHEADER *emh, BOOL on_disk );
 354
 355 /* freetype.c */
 356 extern INT WineEngAddFontResourceEx(LPCWSTR, DWORD, PVOID);
 357 extern GdiFont WineEngCreateFontInstance(DC*, HFONT);
 358 extern BOOL WineEngDestroyFontInstance(HFONT handle);
 359 extern DWORD WineEngEnumFonts(LPLOGFONTW, FONTENUMPROCW, LPARAM);
 360 extern BOOL WineEngGetCharABCWidths(GdiFont font, UINT firstChar,
 361                                     UINT lastChar, LPABC buffer);
 362 extern BOOL WineEngGetCharWidth(GdiFont, UINT, UINT, LPINT);
 363 extern DWORD WineEngGetFontData(GdiFont, DWORD, DWORD, LPVOID, DWORD);
 364 extern DWORD WineEngGetGlyphIndices(GdiFont font, LPCWSTR lpstr, INT count,
 365                                     LPWORD pgi, DWORD flags);
 366 extern DWORD WineEngGetGlyphOutline(GdiFont, UINT glyph, UINT format,
 367                                     LPGLYPHMETRICS, DWORD buflen, LPVOID buf,
 368                                     const MAT2*);
 369 extern BOOL WineEngGetLinkedHFont(DC *dc, WCHAR c, HFONT *new_hfont, UINT *glyph);
 370 extern UINT WineEngGetOutlineTextMetrics(GdiFont, UINT, LPOUTLINETEXTMETRICW);
 371 extern UINT WineEngGetTextCharsetInfo(GdiFont font, LPFONTSIGNATURE fs, DWORD flags);
 372 extern BOOL WineEngGetTextExtentPoint(GdiFont, LPCWSTR, INT, LPSIZE);
 373 extern BOOL WineEngGetTextExtentPointI(GdiFont, const WORD *, INT, LPSIZE);
 374 extern INT  WineEngGetTextFace(GdiFont, INT, LPWSTR);
 375 extern BOOL WineEngGetTextMetrics(GdiFont, LPTEXTMETRICW);
 376 extern BOOL WineEngInit(void);
 377 extern BOOL WineEngRemoveFontResourceEx(LPCWSTR, DWORD, PVOID);
 378
 379 /* gdiobj.c */
 380 extern BOOL GDI_Init(void);
 381 extern void *GDI_AllocObject( WORD, WORD, HGDIOBJ *, const struct gdi_obj_funcs *funcs );
 382 extern void *GDI_ReallocObject( WORD, HGDIOBJ, void *obj );
 383 extern BOOL GDI_FreeObject( HGDIOBJ, void *obj );
 384 extern void GDI_CheckNotLock(void);
 385 extern BOOL GDI_hdc_using_object(HGDIOBJ obj, HDC hdc);
 386 extern BOOL GDI_hdc_not_using_object(HGDIOBJ obj, HDC hdc);
 387
 388 /* metafile.c */
 389 extern HMETAFILE MF_Create_HMETAFILE(METAHEADER *mh);
 390 extern HMETAFILE16 MF_Create_HMETAFILE16(METAHEADER *mh);
 391 extern METAHEADER *MF_CreateMetaHeaderDisk(METAHEADER *mr, LPCVOID filename, BOOL unicode );
 392
 393 /* path.c */
 394
 395 #define PATH_IsPathOpen(path) ((path).state==PATH_Open)
 396 /* Returns TRUE if the specified path is in the open state, i.e. in the
 397  * state where points will be added to the path, or FALSE otherwise. This
 398  * function is implemented as a macro for performance reasons.
 399  */
 400
 401 extern void PATH_InitGdiPath(GdiPath *pPath);
 402 extern void PATH_DestroyGdiPath(GdiPath *pPath);
 403 extern BOOL PATH_AssignGdiPath(GdiPath *pPathDest, const GdiPath *pPathSrc);
 404
 405 extern BOOL PATH_MoveTo(DC *dc);
 406 extern BOOL PATH_LineTo(DC *dc, INT x, INT y);
 407 extern BOOL PATH_Rectangle(DC *dc, INT x1, INT y1, INT x2, INT y2);
 408 extern BOOL PATH_Ellipse(DC *dc, INT x1, INT y1, INT x2, INT y2);
 409 extern BOOL PATH_Arc(DC *dc, INT x1, INT y1, INT x2, INT y2,
 410                      INT xStart, INT yStart, INT xEnd, INT yEnd, INT lines);
 411 extern BOOL PATH_PolyBezierTo(DC *dc, const POINT *pt, DWORD cbCount);
 412 extern BOOL PATH_PolyBezier(DC *dc, const POINT *pt, DWORD cbCount);
 413 extern BOOL PATH_PolylineTo(DC *dc, const POINT *pt, DWORD cbCount);
 414 extern BOOL PATH_Polyline(DC *dc, const POINT *pt, DWORD cbCount);
 415 extern BOOL PATH_Polygon(DC *dc, const POINT *pt, DWORD cbCount);
 416 extern BOOL PATH_PolyPolyline(DC *dc, const POINT *pt, const DWORD *counts, DWORD polylines);
 417 extern BOOL PATH_PolyPolygon(DC *dc, const POINT *pt, const INT *counts, UINT polygons);
 418 extern BOOL PATH_RoundRect(DC *dc, INT x1, INT y1, INT x2, INT y2, INT ell_width, INT ell_height);
 419 extern BOOL PATH_AddEntry(GdiPath *pPath, const POINT *pPoint, BYTE flags);
 420
 421 /* painting.c */
 422 extern POINT *GDI_Bezier( const POINT *Points, INT count, INT *nPtsOut );
 423
 424 /* palette.c */
 425 extern HPALETTE WINAPI GDISelectPalette( HDC hdc, HPALETTE hpal, WORD wBkg);
 426 extern UINT WINAPI GDIRealizePalette( HDC hdc );
 427 extern HPALETTE PALETTE_Init(void);
 428
 429 /* region.c */
 430 extern BOOL REGION_FrameRgn( HRGN dest, HRGN src, INT x, INT y );
 431
 432 /* Undocumented value for DIB's iUsage: Indicates a mono DIB w/o pal enties */
 433 #define DIB_PAL_MONO 2
 434 #endif /* __WINE_GDI_PRIVATE_H */
 435
 436 BOOL WINAPI FontIsLinked(HDC);