Getting current screen resolution

[Thomas Morton]

This is a "thing" that has been annoying me all morning: and I can't
work out how to do it.

I need a way to get the DPI or screen resolution of the monitor that a
script is currently runnign on.

I have a way in Windows but it doesnt port to Unix (which is important).

Any ideas?

-- 
Thomas Morton

Lead Developer || Founder
TomNRob Web Services
www.tomnrob.com