typedef struct tACMFORMATTAGDETAILS
{
    DWORD           cbStruct;
    DWORD           dwFormatTagIndex;
    DWORD           dwFormatTag;
    DWORD           cbFormatSize;
    DWORD           fdwSupport;
    DWORD           cStandardFormats;
    char            szFormatTag[ACMFORMATTAGDETAILS_FORMATTAG_CHARS];

} ACMFORMATTAGDETAILS, *PACMFORMATTAGDETAILS, FAR *LPACMFORMATTAGDETAILS;