+ de->toggle_split_window =
+ gtk_toggle_action_new ("toggle-split-window",
+ _("_Split Window"),
+ _("Split the window vertically and horizontally"),
+ "pspp-split-window");
+
+ g_signal_connect (de->toggle_split_window, "toggled",
+ G_CALLBACK (toggle_split_window),
+ de);
+
+ gtk_action_connect_proxy (GTK_ACTION (de->toggle_split_window),
+ get_widget_assert (de->xml,
+ "windows_split"));