Okay so I am in a class and i'm working out of the book Games & Graphics in C++
The second basic program in this book shows you how to get Dark GDK to draw a couple of circles in a box.
I compile it with no errors but nothing shows up in the box. As far as I know other people in my class are having this same problem and it may have to do with DirectX. I installed the august 2009 directx update, Visual C++ 2008, Dark GDK, patch 7.4. I'm running Windows 7 64 bit. Since regular text shows in the box I really think it has to do with Dark GDK not finding directx or something. Here is the code.
#include "DarkGDK.h"
void DarkGDK()
{
int x = 319, y =239;
for (int radius = 50; radius <= 200; radius += 50)
dbWaitKey();
}