Replaced Start Button

[ahhchu]

I have hidden the START button and created a button of my own. The ParentWindow of the button is set to 'Shell_TrayWnd'. I have assigned an event processor for the OnClick of the button but it nevers gets called. How do I assign event method to the button so I get called when the new start button is pressed? Do I need to intercept the messages for the button resource ?

Thanks