On 08.08, Stefan Salewski wrote: > No idea. I tried some hours to modify my code, but no change. Is that a > known bug of GTK 3.18? Well, gedit seems to have it not, so there may > be a way to suppress it. Google told me that it may be related to the > realize functions, but that does not really help me removing that > problem. That might be possible of course (especially if your code base does not contain a widget that creates its own GdkWindows), but the advice is the same for all criticals and warnings you get: Run in gdb with G_DEBUG=fatal-warnings or G_DEBUG=fatal-criticals and once you hit the one you're interested in, print a backtrace (make sure you have GTK+ debugging symbols). _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx https://mail.gnome.org/mailman/listinfo/gtk-list