如何将鼠标事件传递给我在C＃/ Vista中的应用程序？

I am writing a very specialized app in C# that floats as a mostly transparent window over the entire desktop. I want to be able to create and pass mouse events to applications behind mine, and have them appear to operate "normally", responding to those events. It would also be preferable if the window manager could respond.I am writing a very specialized app in C# that