How to draw to screen in c++?

Question

How would I draw something on the screen ? not the console window but the entire screen, preferably with the console minimised.

Also, would it show up on a printscreen ?

Answer 1

The (rather nice but not recently updated) graphics library anti-grain geometry has very simple bindings to display its demos on a variety of windowing systems, you could look at those for examples. But for anything much more involved you're probably talking about operating system specific libraries.