On Wed, May 30, 2007 at 03:32:32PM +0800, Zhibin.Guan wrote: > what is the difference between button-press-event and button_press_event?? There is no difference, except you should always use the (canonical) name with dashes. You can however often find signal names with underscores in older documentation. Yeti -- http://gwyddion.net/ _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list