Issue with a gtk.Socket embeded app

[Rémi BUISSON <remi buisson cdiscount com>]

Hello all,

I would like to embed an xfreerdp screen into my application. For this I 
added a gtk.Socket (pygtk) this way:
gtk.Socket -> gtk.Viewport -> gtk.ScrolledWindow -> gtk.VBox -> 
gtk.Window (Main window).

Everything is working fine except keyboard. I tried to add a 
focus-in-event listener which print an hello world but it is never 
called. So I suppose the keyboard isn't working because it never has the 
focus on the Socket object.

I'm running python 2.7.8 with gtk 2.24.24.

Can someone give an experience feedback, some tracks I have to follow or 
better, a solution :-) ?

Thanks in advance.

Rémi