typedef struct tagWAVEOUTCAPS2A {
    WORD    wMid;                  
    WORD    wPid;                  
    MMVERSION vDriverVersion;      
    CHAR    szPname[MAXPNAMELEN];  
    DWORD   dwFormats;             
    WORD    wChannels;             
    WORD    wReserved1;            
    DWORD   dwSupport;             
    GUID    ManufacturerGuid;      
    GUID    ProductGuid;           
    GUID    NameGuid;              
} WAVEOUTCAPS2A, *PWAVEOUTCAPS2A, *NPWAVEOUTCAPS2A, *LPWAVEOUTCAPS2A;

typedef WAVEOUTCAPS2A WAVEOUTCAPS2;