The current method for calling gtk_xx instructions is from the main thread only (i.e., that which owns the main loop context). You can do this by means of g_main_context_invoke(). Otherwise you must use the deprecated gdk_threads_enter/gdk_threads_leave mutex method. The deprecated method is slower.
If you do not do the above, you will get all sort of errors just like the one you describe. HTH 2013/1/30 Ferdinand Ramirez <ramirez.ferdin...@yahoo.com> > I have encountered a strange error followed by a crash when I add the > following object to a GtkTextView by creating a child anchor and call > gtk_widget_show_all. > > The object that is added > > The object that is added to the child anchor is a GtkFrame inside which is > a GtkTable and each cell of the table contains another GtkFrame each of > which contains a GtkTextView. > > The error > > This works fine if it is all done from the main program. However, when I > create the hierarchy described above in another thread and call > gtk_widget_show_all on the GtkFrame that is added, I get an error in paint > saying code should not be reached. Before this error, there is a warning > that the iterator in text view has changed. I am not sure if the warning > and error are related. > > Source of the error > > I replaced gtk_widget_show_all by gtk_widget_show in a loop going down the > tree and calling it for each object. The source of the error was the > gtk_widget_show on the leaf level view objects in the frames contained in > each cell of the table. > > Situations under which it works > > When the leaf level GtkTextView objects are not part of the hierarchy of > widgets I create or they are replaced by GtkEntry objects, everything works > fine. Again, note that it also works fine if I do not have another thread > and call everything from the main program on startup but I need to have > another thread as this object will be created during the course of the > program. I've tried both g_idle_add as well as using the > gdk_threads_enter/leave pair. > > Any help will be appreciated. > > -Ferdinand > _______________________________________________ > gtk-app-devel-list mailing list > gtk-app-devel-list@gnome.org > https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list > _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
