I need to generate a MouseExit for my UserControl. However, my usercontrol contains multiple buttons. I tried the method with setcapture and releasecapture, but they take away focus and the buttons need to be double clicked (unacceptable), and they give no hover effect until clicked once. Now I looked into the subclassing way, but my control already implements subclassing, and I have no Idea how to integrate it. I'll post my windowproc and the one I downloaded (for tracking mouse).