I'm looking for info on how MFC 2.0 currently uses/sets the icons in the toolbar.  Specifically, I want to import my own bitmaps and, as easily as possible, derive them from a base class (like MFC does) in such a way that the four possible states (Up, down, Dim, & Focus) can be selected.  In part, is it necessary for me to take the original bitmap and modify it three times to get the visual affects that I need?

--Christopher