BTW, g_main_context_invoke() will be erratic if you do not have the main context loop running. This is common at startup, when you do all sort of gtk_xx before entering the main loop. Solution: start the loop as soon as possible in the main thread, and anything else the main thread needs to do, put in a g_idle function.
2013/1/30 Edscott Wilson <edscott.wilson.gar...@gmail.com> > 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
