how to get a child of a GtkContainer

[Matthias Reis <matthias reis gmx de>]

Hi,

I have in my gtk+ application a menuitem, which has a GtkLabel as it's
child. How can I get the text of this label? The problem is that the label
is created by gtk_menuitem_new_with_label (), which doesn't return a
pointer to the label, of course. So how can I get the label?

Bye,
Matthias