WM_IDLE equivalent?

Hello everyone,

does anyone know a WM_IDLE equivalent for .NET / WinForms - applications?

I want to draw an animation whenever the message queue is empty. So far
Application.Idle did not work, because it just gets called *once* the
message queue is empty - and not everytime it is empty. How can I call my
draw function everytime the queue is empty? Or is this the wrong concept for
..net?

Thanks in advance
Rainer Sinsch