Re: dialogs problems

[Tristan Van Berkom <vantr touchtunes com>]

Most things that you do in Gtk are only done when
your code is finished (ie. in the main loop.). so
when you do "gtk_widget_destroy()" the screen will
only be updated when your callback returns. For the
cleanest results try to never hijack the main loop.
for quick fixes use:

while (gtk_events_pending())
        gtk_main_iteration();

but I find its usualy cleaner to use short operations.
example: I'm doing a long query to a mysql database
and I want to update a progress bar. I tell mysql to 
return every 10 results and iterate through my queries
with a timeout source in the main loop rather than:

while(not_finished) {
        query;
        update_ui;
}

Cheers,
        -Tristan


Emmanuel Saracco wrote:
> 1/ when I close a window through gtk_widget_destroy() and when I start,
> right after, a treatment that eat a lot of resources, the ok button
> remains pushed and the window will close only when the treatment ends
> on. obviously the best would be that it closes just before the treatment
> starts.
>
> 2/ when the treatment is getting on I would like to be able to show the
> user a progress window to inform him from the progressions. the problem
> is that the window that I open *before* the treatment is being shown
> just after.
>
> I use gtk2.
>
> any idea?
>
> bye
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