hmmio (HMMIO) - input

      The MMIO file handle returned by mmioOpen.

    pUserExtendmminfo (PMMEXTENDINFO) - input

      Pointer to the MMEXTENDINFO structure.

    ulFlags (ULONG) - input

      This parameter contains one of the following flags:

      Note: To reference a track other than the default track with the QUERY and SET calls, the MMIO_TRACK and MMIO_CODEC_ASSOC flags must be set at the same time the QUERY or SET is performed.

      MMIO_SET_EXTENDEDINFO

        Set the extended information.
      MMIO_QUERY_EXTENDEDINFO_BASE
        Query only the information of the MMEXTENDINFO structure.
      MMIO_QUERY_EXTENDEDINFO_ALL
        Query all extended information including the CODEC associated information.

      rc (ULONG) - returns

        Return codes indicating success or type of failure:

        MMIO_SUCCESS

          If the function succeeds, 0 is returned.
        MMIOERR_INVALID_HANDLE
          Invalid MMIO handle was passed.
        MMIOERR_INVALID_PARAMETER
          An invalid parameter was passed.

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