System Spec Library for c++

I'm looking for a platform independent library in c++ to get system specs, getting the monitor's stats would be the most important thing though.
Thank you.

>>4
Why wouldn't there be one? Well not really platform independent, I just need one that fits the major targets: Win,Mac,Linux. I'm sure there has to be one that's managed by some kind of review board like a lot of open api's are.