get actual screen size in points or centimeters

[dianacastillo]

Hi, I need to know how to get the actual screen size in points or cms, not in pixels. The javascript functions give me the pixels, but I need to know how many points or centimeters that is regardless if it comes from a browser or a device like an ipad or iphone.
Does anyone know the code to calculate this?
thank you,
Diana

 

[BillyRayPreachersSon]

While I'd love to be proven wrong, I'll stick my neck on the line and say "You cannot".

Why would you need to know the screen size in CMs anyway?

Dan



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