Property notify on root window in Gtk2.0

[Peter Zelezny <pzel dodo com au>]

Hi All,

Could somone suggest a way to get property notifies on the root window 
using GTK2's signal system?

In 1.2, I'd do it something like this:

static gboolean
handle_property_notify (GtkWidget *widget, GdkEventProperty *event,
                        gpointer user_data)
{
        ...
}

{
        proxy_invisible = gtk_invisible_new ();
        /* Make the root window send events to the invisible proxy widget */
        gdk_window_set_user_data (GDK_ROOT_PARENT (), proxy_invisible);
        /* Select for PropertyNotify events from the root window */
        XSelectInput (GDK_DISPLAY (), GDK_ROOT_WINDOW (), PropertyChangeMask);
        g_signal_connect (G_OBJECT (proxy_invisible), "property_notify_event",
                        G_CALLBACK (handle_property_notify), NULL);
        gtk_widget_show (proxy_invisible);
}

-- 
Peter Zelezny.