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This class serves as a base from which to implement individual display drivers. A GPEobject represents a single display device.
The following code example shows the methods that a GPE-based driver must implement.
// Configuration methods virtual SCODE GetModeInfo( GPEMode *pMode, int modeNo )=0; virtual int NumModes()=0; virtual SCODE SetMode( int modeId )=0; // Blit methods virtual SCODE BltPrepare( GPEBltParms *pBltParms )=0; virtual SCODE BltComplete( GPEBltParms *pBltParms )=0; // Line method virtual SCODE Line( GPELineParms *pLineParms, EGPEPhase phase = gpeSingle )=0; // Surface creation method virtual SCODE AllocSurface( GPESurf **ppSurf, int width, int height, EGPEFormat format, int surfaceFlags )=0; // Cursor methods virtual SCODE SetPointerShape( GPESurf *pMask, GPESurf *pColorSurf, int xHot, int yHot, int cx, int cy )=0; virtual SCODE MovePointer( int x, int y )=0; // Palette methods virtual SCODE SetPalette( RGBQUAD *src, unsigned short firstEntry, unsigned short numEntries )=0; virtual SCODE SetPalette( PALETTEENTRY *src, unsigned short firstEntry, unsigned short numEntries )=0; // Timing method virtual int InVBlank()=0;
Last updated on Tuesday, July 13, 2004