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