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