Causes iTunes to lower its playback volume. Affects the iTunes volume setting only, not the overall system volume or any of WoW's volume settings.
Used by the iTunes Remote key bindings only available on the Mac OS X WoW client. Only has effect while the iTunes application is open.
See also Mac client functions.
Signature:
MusicPlayer_VolumeDown()
This function is protected and can only be called by the Blizzard user interface
This function is designed for the Mac OS X client only