Re: emitting the "delete_event" in a "key_press_event" --> crash

[Olivier Sessink <olivier lx student wau nl>]

On Thu, 07 Nov 2002 16:16:43 +0200 "Olexiy Avramchenko"
<ath beast stu cn ua> wrote:

> 1. You allocates a piece of memory: testwin = g_new(...);
> 2. Then you pass testwin as a parameter to "delete_event" and "destroy" 
> callbacks
> (wich are the same function).
> 3. "delete_event" signalled - callback called first time.
> 4. You call gtk_widget_destroy() inside callback, GtkObjects code will 
> emit "destroy"
> some ns later.
> 5. "destroy" signalled - callback called second time.
> 6. You call gtk_widget_destroy() inside callback, no "destroy" will be 
> emitted this time,
> because GtkObject knows that dispose process is running.
> 7. You call gfree() - testwin freed.
> 8. Getting out from second callback's call.
> 9. You call gfree() on already freed on stage 7) testwin - this is a
> bug. 10. One more bug - you are not returning value from "delete_event" 
> callback. But this
> is not much important here, because you've called gtk_widget_destroy().

ok, but this is fixed now because I only connect to destroy_event now, and
not to delete_event anymore.

thanks,
        Olivier