Glib::RefPtr<Gdk::GC> gc(Gdk::GC::create(window));
Glib::RefPtr<Gdk::GC> inactive_gc(Gdk::GC::create(window));
Gtk::Adjustment *adjustment=get_adjustment();
Glib::RefPtr<Gdk::GC> gc(Gdk::GC::create(window));
Glib::RefPtr<Gdk::GC> inactive_gc(Gdk::GC::create(window));
Gtk::Adjustment *adjustment=get_adjustment();