?? doublebufferedarea.h
字號:
/**
* This class provides all the components for creating offscreen areas for
* double buffered drawing
*/
#ifndef DOUBLEBUFFEREDAREA_H
#define DOUBLEBUFFEREDAREA_H
#include <e32base.h>
#include <gdi.h>
class CFbsBitmap;
class CFbsBitmapDevice;
class CFbsBitGc;
class CDoubleBufferedArea : public CBase
{
public:
static CDoubleBufferedArea* NewL(TSize aSize, TDisplayMode aDisplayMode);
static CDoubleBufferedArea* NewLC(TSize aSize, TDisplayMode aDisplayMode);
~CDoubleBufferedArea();
const CFbsBitmap& GetDoubleBufferedAreaBitmap() const;
CFbsBitGc& GetDoubleBufferedAreaContext() const;
void ClearBufferedArea();
private:
CDoubleBufferedArea();
void ConstructL(TSize aSize, TDisplayMode aDisplayMode);
CFbsBitmap* iAreaBitmap;
CFbsBitmapDevice* iAreaBitmapDevice;
CFbsBitGc* iAreaBitmapContext;
};
#endif //DOUBLEBUFFEREDAREA_H
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