hmmio (HMMIO) - input

      The open file handle returned by mmioOpen.

    pmmioinfo (PMMIOINFO) - in/out

      A caller-allocated MMIOINFO buffer that is to receive information about the open file. See the description of the mmioOpen function for information about how the fields are interpreted.

    usFlags (USHORT) - input

      Reserved for future use and must be set to zero.

    rc (USHORT) - returns

      Return codes indicating success or type of failure:

      MMIO_SUCCESS

        If the function succeeds, 0 is returned.
      MMIOERR_INVALID_HANDLE
        The handle passed was not valid.
      MMIOERR_INVALID_PARAMETER
        An invalid parameter was passed.
      MMIOERR_UNBUFFERED
        The specified file is not opened for buffered I/O.
      MMIOERR_READ_FAILED
        A read-advance operation failed.
      MMIOERR_SEEK_FAILED
        A seek operation prior to a write- or read-advance operation failed.
      MMIOERR_WRITE_FAILED
        A write-advance operation failed.

      [Back] [Next]