Checked tree in wxpython (windows)

[geire]

I'm trying to make a checked tree based on TreeCtrl. I've subclassed
the control such that checkmarks appear in the left hand side of the
treeitems. So far so good. The challenge appears when I programmaly
want to check the tree items since I don't know the hitem id which I
should send an update to (using SendMessage). I only get access to a
proxy of wxTreeItemId and not the hItem id itself. Any ideas of how I
can get this id?


Thanks in advance.