kind of works? reading multiple mice: any c programmers want to look at this?

[madscijr]

@madscijr

It isn't that it is impossible to use WindowHandle as our HWND.... It's just that we will most certainly have to register our window to accept messages and that we absolutely must use a callback function. Besides, oftentimes you don't even need to pass in the window's handle because a default of NULL/zero just tells it to use the calling window.

That is encouraging. 
I started trying to stop it from opening the white window, and get the callback to operate on the main window. Not at the PC now to recall exactly what I did, but I must have done it wrong, so that's when I started reading up on the API functions... 
If you think you know how to get the callback to operate on the main window, let me know, otherwise I'll keep researching & experimenting.
Thanks!