Background Win process knowing user's activity

[Eric Chatonet]

Hi all,

A Win project at the moment:
Even if Rev is not the frontmost app, it's easy to know if the mouse  
has been moved by monitoring the screenMouseLoc value.
I would like also to know if any key is pressed or if the mouse wheel  
is used (in another running process).
In a word, I want to know if the user is working in any frontmost app  
or not :-)
I assume that I could poll a port or something else without needing a  
specific dll but don't know how.
I would appreciate any tips to get me started.

Best Regards from Paris,
Eric Chatonet
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http://www.sosmartsoftware.com/    eric.chatonet at sosmartsoftware.com/