gnome-sharp 2.20.0.0 Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details. The errors that can be returned due to bad parameters being pass to . To be added System.Enum Field Gnome.URLError The parsing of the handler failed. Field Gnome.URLError To be added To be added Field Gnome.URLError To be added To be added Field Gnome.URLError To be added To be added Field Gnome.URLError To be added To be added Field Gnome.URLError To be added To be added Field Gnome.URLError To be added.