Hi See gtk_window_set_position(). I'm not sure, if you need to realize a window, before using gtk_window_set_position(), so maybe you need to call: gtk_widget_realize( widget ); gtk_window_set_position( GTK_WINDOW( widget ), GTK_WIN_POS_CENTER ); gtk_widget_show( widget ); HTH Jan-Marek _______________________________________________ gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list