I write a lot of ActiveX controls. The major feature I lack in all of these controls is the ability to use the functionality of the ScrollMouse button (the middle wheel button on the mouse). For instance, lets say I build a control, and if it is sized small enough, I show a Vertical scrollbar on the right. I would like the be able to receive the Windows messages (or whatever) that would tell me when a user uses the wheel over my control.
Anyone know how?