static void FontActivated_cb(IntPtr inst, IntPtr fontname) { try { Gtk.FontButton __obj = GLib.Object.GetObject(inst, false) as Gtk.FontButton; __obj.OnFontActivated(GLib.Marshaller.Utf8PtrToString(fontname)); } catch (Exception e) { GLib.ExceptionManager.RaiseUnhandledException(e, false); } }