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