On Sun, Dec 28, 2008 at 6:45 AM, Francesco Montorsi <f18m_cpp217...@yahoo.it> wrote: > Hi, > is it possible to process only some specific events from the GTK/GDK event > queue and leave the others in the queue so they can be processed later by > the main loop? > > I'll try to explain it better: I have a GTK-based app which runs the > gtk_main() in its void main(). > However at a certain point (e.g. upon user click on a GtkButton), I need to > perform a long computation. I don't want to use a secondary thread; rather > I'd like to do everything from the main thread. To avoid blocking the GUI of > my app during the computation, I call from time to time: > > while (gtk_events_pending() != 0) > gtk_main_iteration(); > > to process the pending events in the queue. However now I'd like to process > only _some_ of the events of the queue, and leave the others in the queue > itself. > > Is it possible?
Hi, for some odd cases you can use: http://library.gnome.org/devel/gdk/stable/gdk-Events.html#gdk-event-put i.e. by pumping the events out of the event queue yourself, and putting the ones you didnt process back. I doubt this is what you need, I think that removing the while (gtk_events_pending()) code all together and replacing it with more returns to the event loop, and shorter iterations in timeouts and signal callbacks - will probably fix whatever problems you are having. i.e. save an iterator position and process only a few iterations every time the idle handler you install is called, when the loop is finally finished then signal that your computation is finished. You can also push a progress bar and set your UI insensitive for the duration of the process this way. Cheers, -Tristan _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
