GtkComboBox and focus change events

Hi all, I've been pulling my hair out over connecting a callback to the 'focus-in- event' and 'focus-out-event' signals on a GtkComboBox. Tried just about everything - up to changing the event mask and even putting the GtkComboBox inside a GtkEventBox. Nothing works. The GtkComboBox clearly *does* get keyboard focus, but the callback *never* fires. Now I suspect this has something to do with the GtkComboBox being a composite widget, but I haven't been able to get at the child widgets. Calling children() on the GtkComboBox gives me only one child widget, which is a GtkCellView and does not know anything about keyboard focus. I'm running the win32 binary built from cvs by xxoes, dated 20060225. Any ideas, suggestions welcome. Regards, -- André =========================================================== Ignorance killed the cat. Curiosity was framed.