Put a callback on a specific entry of a GtkComboBox

[Guillaume Desmottes <cass skynet be>]

Hi!

I would like to put a callback when a specific entry of a GtkComboBox is
clicked.
In fact, i open a popup when this entry is clicked. If i use the
"changed" signal, the popup is open at the init if this entry is the
default value. The other problem is than if this entry is selected and i
reclick on it, the value isn't changed and so the popup isn't opened.

thanks for your help

        G.

-- 
Guillaume Desmottes <cass skynet be>
Jabber <cassidy jabber belnet be>
GPG 1024D/711E31B1 | 1B5A 1BA8 11AA F0F1 2169  E28A AC55 8671 711E 31B1