typedef struct tACMFORMATCHOOSEA
{
    DWORD           cbStruct;           
    DWORD           fdwStyle;           
    
    HWND            hwndOwner;          

    LPWAVEFORMATEX  pwfx;               
    DWORD           cbwfx;              
    LPCSTR          pszTitle;           
    
    char            szFormatTag[ACMFORMATTAGDETAILS_FORMATTAG_CHARS];
    char            szFormat[ACMFORMATDETAILS_FORMAT_CHARS];    

    LPSTR           pszName;            
    DWORD           cchName;            

    DWORD           fdwEnum;            
    LPWAVEFORMATEX  pwfxEnum;           
    
    HINSTANCE       hInstance;          
    LPCSTR          pszTemplateName;    
    LPARAM          lCustData;          
    ACMFORMATCHOOSEHOOKPROCA pfnHook;   

} ACMFORMATCHOOSEA, *PACMFORMATCHOOSEA, FAR *LPACMFORMATCHOOSEA;