Re: [gtk-list] Re: Help with emitting signals!

[Havoc Pennington <hp redhat com>]

Nicolas GEORGE <george@clipper.ens.fr> writes:
> Sebastia Matas Riera, dans le message (.gtk.general:1253), a écrit :
> > And I'm having a problem, when I use it this way:
> >     gkt_signal_emit_by_name( drawingarea, "expose_event" );
> 
> gtk_signal_emit_by_name (GtkObject       *object,
>                          const gchar     *name,
> 			 ...)
> 
> The goal of this ellipsis is to pass the additionnal parameters that the
> callback needs. Here :
> 
> "expose-event"
>             gboolean    user_function      (GtkWidget *widget,
>                                             GdkEventExpose *event,
>                                             gpointer user_data);
> 
> So you need to pass a pointer on a GdkEventExpose.
> 

That would be true, _if it were permissible to emit this signal at
all_, which it is not. If you gtk_signal_emit() an event GTK's
behavior is undefined, the API does not allow this.

Havoc