Hi,
Vizard already handles special keys. For example, if you want to check for the insert and delete key being pressed you would do the following:
Code:
def onkeydown(key):
if key == viz.KEY_INSERT:
print 'Insert key pressed'
elif key == viz.KEY_DELETE:
print 'Delete key pressed'
There is a list of all the special keys in the documentation under "User Guide -> Appendix -> Keyboard Codes"
Hope this helps!