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