Widget.connectDeleteEvent

gulong connectDeleteEvent(T)(T callback,  Flag!"After" after =  No.After) if (isCallable!T
    &&  is(ReturnType!T ==  bool)
   && (Parameters!T.length <  1 || (ParameterStorageClassTuple!T[0]  ==  ParameterStorageClass.none &&  is(Parameters!T[0]  ==  gdk.event.Event)))
   && (Parameters!T.length <  2 || (ParameterStorageClassTuple!T[1]  ==  ParameterStorageClass.none &&  is(Parameters!T[1] :  gtk.widget.Widget)))
   &&  Parameters!T.length <  3)

Connect to DeleteEvent signal.

The ::delete-event signal is emitted if a user requests that a toplevel window is closed. The default handler for this signal destroys the window. Connecting [gtk.widget.Widget.hideOnDelete] to this signal will cause the window to be hidden instead, so that it can later be shown again without reconstructing it.

Parameters

`callback`	signal callback delegate or function to connect `bool callback(gdk.event.Event event, gtk.widget.Widget widget)` `event` the event which triggered this signal (optional) `widget` the instance the signal is connected to (optional) `Returns` true to stop other handlers from being invoked for the event. false to propagate the event further.
`after`	Yes.After to execute callback after default handler, No.After to execute before (default)

Returns

Signal ID