Command:
    vol = GetVolume

  Description:
    Get  the  current  volume and place the result in "vol". If the current
    player can't change the volume, the result will be 64.

  Input:
    None

  Result:
    vol - the current volume

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  Command:
    SetVolume vol

  Description:
    Set the volume to "vol". If the number is out of range the volume would
    be set to either max or min.

  Input:
    vol - the new volume

  Result:
    None

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  Command:
    vol = VolumeDown

  Description:
    Move the volume one tick down. It will return the new volume.

  Input:
    None

  Result:
    vol - the new volume

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  Command:
    vol = VolumeUp

  Description:
    Move the volume one tick up. It will return the new volume.

  Input:
    None

  Result:
    vol - the new volume