#ifdef __cplusplus
extern "C" {
#endif
extern IDirectDrawPalette *DDLoadPalette(IDirectDraw7 *pdd, LPCSTR szBitmap);
extern IDirectDrawSurface7 *DDLoadBitmap(IDirectDraw7 *pdd, LPCSTR szBitmap, int dx, int dy);
extern HRESULT DDReLoadBitmap(IDirectDrawSurface7 *pdds, LPCSTR szBitmap);
extern HRESULT DDCopyBitmap(IDirectDrawSurface7 *pdds, HBITMAP hbm, int x, int y, int dx, int dy);
extern DWORD DDColorMatch(IDirectDrawSurface7 *pdds, COLORREF rgb);
extern HRESULT DDSetColorKey(IDirectDrawSurface7 *pdds, COLORREF rgb);
#ifdef __cplusplus
}
#endif