object

      Object associated with this media control interface command. The object can be one of the following:

      • Device type
      • Device name
      • Filename
      • Alias
      ENABLE
        Enables information flow through the indicated connector. Using this option requires that the NUMBER or TYPE keywords, or both also be specified.
      DISABLE
        Disables information flow through the indicated connector. Use of this option requires that the NUMBER or TYPE keywords, or both also be specified.
      QUERY
        Queries the status of the indicated connector. The return value will be either TRUE or FALSE to indicate enabled or disabled respectively. Using this option requires that the NUMBER or TYPE keywords, or both also be specified.
      NUMBER connector_number
        The connector number on which to perform the requested action. If the TYPE keyword is included, the connector number is interpreted as a relative offset within the specified connector type.
      TYPE connector_type
        Indicates the type of connector to which the requested action applies. The following connector types are directly supported by this device:

        MIDI stream

          Digital input or output for the audio amplifier/mixer. This connector is always enabled.
        The MIDI sequencer device also recognizes the following connector types and will attempt to control the corresponding amp/mixer connector if the amp/mixer provides the support.

        line out

          The line output connector. This connector is usually attached to the line in connector of another device such as a tape recorder or other audio device.
        speakers
          The speakers connector. This connector is usually attached to a pair of external or internal speakers.
        headphones
          The headphones connector. This connector is usually attached to a pair of headphones.
        WAIT
          The command is executed synchronously. The function waits until the requested action is complete before returning to the application.
        NOTIFY
          The command is executed asynchronously, allowing control to be returned immediately to the application. When the requested action is complete, an MM_MCINOTIFY message is sent to the application window procedure.

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