Re: Question about delete_event_impl

[rob page <page rob gmail com>]

Blimey.. randomly falling on my keyboard has result in an early
message send.... anyway.. if the on_delete_event returns false then
the program closes, if it returns true.. it carries on running.

Hope this helps.
Rob.

On 24/01/06, rob page <page rob gmail com> wrote:
> In my one of my programs I have this: (AmyEdit derives from Gtk::Window)
>
> bool AmyEdit::on_delete_event(GdkEventAny* event)
> {
>         if (edittabs->CloseAllTabs())
>                 return false;
>         return true;
> }
>
> If it returns
> On 24/01/06, J. Baltasar Garcia Perez-Schofield <jbgarcia uvigo es> wrote:
> >
> >         Hi, there !
> >
> >         I'm using Gtkmm 2.4 for a new project, with the interface classes
> > generated by Glade. My problem is that I want to intercept the closing
> > event of a window, and I've read that you can simply override the
> > following method in your window:
> >
> >         gint delete_event_impl(GdkEventAny *);
> >
> >         So I have my class VentanaPpal inheriting from VentanaPpal_Glade which
> > inherits from Gtk::Window as well, and then I introduce the line above
> > in the .h file and implement the method in the .cpp file:
> >
> > gint VentanaPpal::delete_event_impl(GdkEventAny *)
> > {
> >         if ( askYesNo( "Are you sure?" ) )
> >         {
> >                 if ( getCurrentDocument() != NULL ) {
> >                         saveCurrentDocument();
> >                 }
> >
> >                 Gtk::Main::quit();
> >                 return false;
> >         }
> >
> >         return true;
> > }
> >
> >         Not very complex/specialized code. Also, the "exit" menu option signal
> > handle calls delete_event_impl() function.
> >
> >         Once the application is running, selecting the "exit" menu option makes
> > the application to exit correctly, asking the user whether he or she is
> > sure or not. However, if I close the window, it just finishes its
> > execution.
> >
> >         The documentation says that when a window is about to be closed, the
> > signal handle for delete is called, as well as the delete_event_impl()
> > method.
> >
> >         Where's my error ?
> >
> >         I also tried to connect a signal manually, in the constructor of
> > VentanaPpal_Glade:
> >
> >         signal_delete_event().connect(SigC::slot(*this,
> > &VentanaPpal_glade::on_close), false);
> >
> >         However, it then complains about functors.h not ignoring a void value
> > (I suppose it has to do with the template receiving the method pointer).
> >
> >         Regards,
> >
> >                 Baltasar
> >
> >
> >
> > --
> >
> > PBC -- J. Baltasar García Perez-Schofield
> > jbgarcia en uvigo de es  http://webs.uvigo.es/jbgarcia/
> > Dep. Informática, Universidad de Vigo, España (Spain)
> >
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>