I don't know about you, but I'm really excited! At this point, you have everything you need to start understanding much more complex Windows programming. You know about the architecture of Windows and multitasking, and you know how to create Window classes, register classes, create windows, write event loops and handlers, and a lot more! So pat yourself on the back (or, for my alien readers, lick your eyeballs). You have done a most excellent job <BG>.
In the next chapter, we're going to cover some more Windows-related stuff, like using resources, creating menus, working with dialogs, and getting information.