rc (ULONG)

      Return codes indicating success or type of failure:

      MCIERR_SUCCESS

        If the function succeeds, 0 is returned.
      MCIERR_INVALID_DEVICE_ID
        Invalid device ID given.
      MCIERR_INVALID_FLAG
        Invalid flag specified for this command.
      MCIERR_INVALID_BUFFER
        Buffer specified in the pBufList field of the MCI_BUFFER_PARMS structure is invalid.
      MCIERR_INVALID_MODE
        Command invalid for current mode.
      MCIERR_OUT_OF_MEMORY
        Memory could not be allocated.

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