actually the switchbar is a custom control. It does resemble a toolbar however it isnt.
The tolbar (while i cant prove it) i believe is a superclass.
If you dont already know a superclass is a new window class registered from an already existing one (toolbar in the case).
I could be wrong but i believe mIRC's toolbar does respond to at least some toolbar messages (i.e TB_*)
Hope this helps Have fun
