Nice sample. I've use toolbars for a long time, most of my apps have one. So far I haven't had much call for MDI forms, haven't come up with a good application for them other than using the main VFP window as one. What are you doing with them?
I'm just starting to play with dockable windows, I'd love to see some cool applications for them. I'm thinking I will come up with some uses for them.