Virtual Functions in Reusable Controls

I want to create reusable controls such as the CYellowEdit control described in "TN062: Message Reflection for Windows". The problem is that I want to be able to override virtual functions such as PreCreateWindow. For the CListCtrl control, for example, PreCreateWindow is the traditional place to set styles. I am sure that there are work-arounds, but I would like to avoid work-arounds if possible.