Re: [gtk-list] Re: Notebook and listbox problems.

[Owen Taylor <owt1 cornell edu>]

> Hmm.  Then if I change the gtk_signal_connect_object in simple.c
> to a gtk_signal_connect, it should only get rid of the button,
> not the whole window, right?  Or do I misunderstand?
> 
> I changed simple.c so that
>   gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
>                              GTK_SIGNAL_FUNC (gtk_widget_destroy),
>                              GTK_OBJECT (window));
> became
>   gtk_signal_connect (GTK_OBJECT (button), "clicked",
>                       GTK_SIGNAL_FUNC (gtk_widget_destroy),
>                       GTK_OBJECT (window));
> and the behavior of the program stayed exactly the same.

That's because simple.c does some strange stuff ...

  button = gtk_button_new_with_label ("Hello World");
  gtk_signal_connect (GTK_OBJECT (button), "clicked",
		      GTK_SIGNAL_FUNC (hello), NULL);
  gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
			     GTK_SIGNAL_FUNC (gtk_widget_destroy),
			     GTK_OBJECT (window));

So two signals are connected. The hello() function calls gtk_exit so the
second callback, which you modified, is never activated. If you remove
the gtk_exit call from hello(), then you'll see the expected behavior.

I don't know what this was intended to demonstrate ...

                                        Owen