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From: "Jeffrey R. Carter" <spam.jrcarter.not@spam.not.acm.org>
Newsgroups: comp.lang.ada
Subject: Re: GTk3 without the Gtkbuilder and Glad
Date: Fri, 10 Jun 2016 11:38:06 -0700
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Date: 2016-06-10T11:38:06-07:00
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On 06/10/2016 11:16 AM, ldries46 wrote:
> 
> I can make that routine and let it run from the menu or some error, But I cannot
> find the way to run this routine from the destroy button of the window. How
> should I do that?

The GTK3 version of Mine_Detector (created by Pascal Malaise) has the following
for the callback for the delete event:

   function When_Close (Object : access Gtk_Window_Record'Class;
                        Event  : Gdk.Event.Gdk_Event)
   return Boolean;

so presumably you'll need a callback with this specification. It's connected by

      Window_Cb.Connect (Window, "delete_event",
                         Window_Cb.To_Marshaller (When_Close'Access) );

using

   package Window_Cb is new Gtk.Handlers.Return_Callback (Gtk_Window_Record,
Boolean);

HTH

-- 
Jeff Carter
"Beyond 100,000 lines of code you
should probably be coding in Ada."
P. J. Plauger
26