<para>The <seecref="M:GLib.VolumeMonitor.VolumeChanged"/> event utilizes this delegate:</para>
<para>Event data is passed via the <seecref="T:GLib.VolumeChangedArgs"/> parameter.</para>
<para>To attach a <seecref="T:GLib.VolumeChangedHandler"/> to an event, add the VolumeChangedHandler instance to the event. The methods referenced by the VolumeChangedHandler instance are invoked whenever the event is raised, until the VolumeChangedHandler is removed from the event.</para>