typedef struct {
    LONG		cbSize;		
					
    DWORD		dwFlags;	
    HIC			hic;		
    DWORD               fccType;	
    DWORD               fccHandler;	
					
    LPBITMAPINFO	lpbiIn;		
    LPBITMAPINFO	lpbiOut;	
    LPVOID		lpBitsOut;
    LPVOID		lpBitsPrev;
    LONG		lFrame;
    LONG		lKey;		
    LONG		lDataRate;	
    LONG		lQ;		
    LONG		lKeyCount;
    LPVOID		lpState;	
    LONG		cbState;	
} COMPVARS, FAR *PCOMPVARS;