This structure provides information used with a MMIOM_MULTITRACKREAD message.
typedef struct _MMMULTITRACKREAD { ULONG ulLength; /* Length of read buffer. */ PVOID pBuffer; /* Pointer to read buffer. */ ULONG ulFlags; /* Read flags. */ ULONG ulNumTracks; /* Number of track entries. */ PTRACKMAP pTrackMapList; /* Pointer to TRACKMAP. */ ULONG ulBufferLength; /* Actual length of read buffer. */ ULONG ulReserved; /* Reserved. */ } MMMULTITRACKREAD; typedef MMMULTITRACKREAD * PMMMULTITRACKREAD ;