void InitGfxWindowInfo(int, int);
void InitGfxScrollbufferInfo(int, int);
void InitGfxClipRegion(boolean, int, int, int, int);
void InitGfxWindowInfo(int, int);
void InitGfxScrollbufferInfo(int, int);
void InitGfxClipRegion(boolean, int, int, int, int);