typedef struct {
    DWORD               dwFlags;        

    LPBITMAPINFOHEADER  lpbiOutput;     
    LPVOID              lpOutput;       

    LPBITMAPINFOHEADER  lpbiInput;      
    LPVOID              lpInput;        

    LPDWORD             lpckid;         
    LPDWORD             lpdwFlags;      
    LONG                lFrameNum;      
    DWORD               dwFrameSize;    

    DWORD               dwQuality;      

    
    LPBITMAPINFOHEADER  lpbiPrev;       
    LPVOID              lpPrev;         

} ICCOMPRESS;