Place an widget or image on top of an image!?

["JOSE PEDRO SERGIO ROMAO MACHADO" <a15993 alunos det ua pt>]

I there!

I need to do some software that represents an Controling 
System of a House.

I have to put an top side image of the house an some leds 
on each division, like green the room is empty, red room 
is not empty...

My problem is that, unlyke QT, GTK+ doesn't seem to have 
the Z coordinate.. that sets the deep of an widget.. so 
you can place widget on top of each other...

Any sugestions??? 


Thanks in Advance!



+-----------------------------------+
|    José Pedro S. Romão Machado    |
|       (DET/LEET - Nº15993)        |
+-----------------------------------+
|      Universidade de Aveiro       |
| Dep. de Elect. e Telecomunicações |
|           (www.ua.pt)             |
+-----------------------------------+