typedef struct joyinfoex_tag {
    DWORD dwSize;                
    DWORD dwFlags;               
    DWORD dwXpos;                
    DWORD dwYpos;                
    DWORD dwZpos;                
    DWORD dwRpos;                
    DWORD dwUpos;                
    DWORD dwVpos;                
    DWORD dwButtons;             
    DWORD dwButtonNumber;        
    DWORD dwPOV;                 
    DWORD dwReserved1;           
    DWORD dwReserved2;           
} JOYINFOEX, *PJOYINFOEX, NEAR *NPJOYINFOEX, FAR *LPJOYINFOEX;