The following code illustrates setting the volume level for a device.

    USHORT             usDeviceID;
    MCI_SET_PARMS      msp;

    msp.ulLevel = 50;                  /* 50% of volume */
    msp.ulAudio = MCI_SET_AUDIO_ALL;
    mciSendCommand(usDeviceID,
                   MCI_SET,
                   MCI_WAIT | MCI_SET_AUDIO |
                   MCI_SET_VOLUME
                   (PVOID) &msp, 0);

The following example illustrates how an application can set a particular connector's volume setting.

    MCI_AMP_SET_PARMS  mSet;
   /* Set the volume of a particular connector. */
      mSet.ulValue = MCI_AMP_STREAM_CONNECTOR;
      mSet.ulLevel = 100;
      mSet.ulItem = MCI_AMP_SET_AUDIO;
      mSet.ulAudio = MCI_AMP_SET_BASS;

      ulError = mciSendCommand((USHORT)hMixer,
                     MCI_SET,
                     MCI_WAIT | MCI_SET_ITEM
                     (PVOID)&mSet,
                     0);
      if(ULONG_LOWD(ulError) != MCIERR_SUCCESS)
        {
        }