On Sun, 2017-09-24 at 13:54 +0200, René Hansen wrote: > it starts flickering constantly I don't know what Socket and Plug is... But you seems to do the drawing completely wrong. Generally gtk_widget_queue_draw() is involved in the drawing process, that is that your timer does not do the drawing directly, but only invalidates the widget, which cause a indirect draw. You may find a few examples for this, one recent using plain C was contained in this thread: https://lists.cairographics.org/archives/cairo/2016-October/027791.html https://pastebin.com/in17XGjs _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx https://mail.gnome.org/mailman/listinfo/gtk-list