extending event class in wxpython

[suryaprakashg at gmail.com]

Hi all,

 I have a sub-classed wxtreectrl but i want to create an event when a
node is added to my class . But i dont seem to understand how to do
that. I want to create my own NODE_ADDED event which would be handled
by main frame which creates an instance of my treectrl.

Any help would be greatly appreciated , as always.