Get xid from hildon desktop home plugin- Python

[Sergio]

Hi¡
I'm new here. I'm working on develop desktop-widget (hildon desktop home plugin) using python.

I'm trying to play video using an embedded mplayer, so I need to get the xid. Using usual GTK windows I don't have any problem.
...
class videoPlugin():
def __init__(self):
self.mwindow=gtk.Window(gtk.WINDOW_TOPLEVEL)
MplayerWidget=gtk.DrawingArea()
self.mwindow.add(MplayerWidget)
self.mwindow.show_all()

xid = MplayerWidget.window.xid
....

but if I use the same code on hildondesktop.HomeItem class:

...
class videoPlugin(hildondesktop.HomeItem):
def __init__(self):
MplayerWidget=gtk.DrawingArea()
self.add(MplayerWidget)
self.show_all()
xid = MplayerWidget.window.xid
...


I get an error:
xid = MplayerWidget.window.xid
AttributeError: 'NoneType' object has no attribute 'xid'


¿Does hildon-desktop-home-plugin have xid? ¿How can I read it?

Thanks