<ThreadSafetyStatement>Gtk# is thread aware, but not thread safe; See the <linklocation="node:gtk-sharp/programming/threads">Gtk# Thread Programming</link> for details.</ThreadSafetyStatement>
<para>The <seecref="M:Gtk.Widget.DeleteEvent"/> event invokes <seecref="T:Gtk.DeleteEventHandler"/> delegates which pass event data via this class.</para>
<seecref="T:Gtk.DeleteEventArgs"/>'s RetVal is a boolean.</para>
<para>To keep a <seecref="T:Gtk.Window"/> from closing, set <seecref="T:Gtk.DeleteEventHandler"/>'s <seecref="T:Gtk.DeleteEventArgs"/>.RetVal to true.</para>
<remarks>Create a new <seecref="T:Gtk.DeleteEventArgs"/> instance with this constructor if you need to invoke a <seecref="T:Gtk.DeleteEventHandler"/> delegate.</remarks>