how to do stuff with tray icons?

["Cristóvão B. B. Dalla Costa" <cbraga fs inf br>]

Hello

I've successfully created a tray icon using the sample script in 
Gtk::TrayIcon's manpage, but I cannot seem to get signals working. I 
wish to be able to connect a signal to the display widget (in this case, 
the example text label) so that when the user click a button I can open 
a window or display a menu. However, many different attempts to connect 
signals to both the widget and the tray object did not result in the 
signal handler being called.

Does anyone know how to proceed?

Thanks in advance,

Cristovao