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