How could you write GUI programs without the help of a third party library such as OpenGL?
How could you write GUI programs without the help of a third party library such as OpenGL?
You would rewrite OpenGL, call it something else, and use that.
But seriously - the standard library doesn't provide for graphics, and things like that. You need to use a third-party library, or write your own code to do all the graphics - which isn't very fun using just the standard library.
edit: http://www.friedspace.com/cprogramming/cgraphics.php