rc (ULONG)

      Return codes indicating success or type of failure:

      MCIERR_SUCCESS

        MMPM/2 command completed successfully.
      MCIERR_OUT_OF_MEMORY
        System out of memory.
      MCIERR_INVALID_DEVICE_ID
        Invalid device ID given.
      MCIERR_MISSING_PARAMETER
        Missing parameter for this command.
      MCIERR_DRIVER
        Internal MMPM/2 driver error.
      MCIERR_INVALID_FLAG
        Invalid flag specified for this command.
      MCIERR_INSTANCE_INACTIVE
        Instance inactive.
      MCIERR_OVLY_INVALID_RECT
        An invalid rectangle parameter was specified.
      MCIERR_OVLY_NOT_AVAILABLE
        The requested action is not available; for example, because video has been set off.

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