I'm trying to get the real dimensions of the screen because I
want do draw an A4 paper on the screen.
I used the System.capabilities.screenDPI property, but it
seems not to work well: it returns 72 when I know in my system is
Well, I mean, about 96: simply I tried to draw the short side
of a A4 paper and match the paper with the screen.
Then are few operations to do.
It's not a scientific method, but I know that some systems
got 96 DPI and it's easy to guess if your system is 72 or 96, of
course, with a little lack of precision