Hi again,

Even old delphix would probably be suffciient for you. The major plus point of using dephix is that your program would still work on older directx 7 hardware. I.e. You could make it work on most computers out here.

Most of the other graphics systems are now requiring DirectX 9. As for OpenGL my own experience is that OpenGL programs are a huge problem when you sell to people that do not have gaming computers. If they do not have a gaming computer then they usually don't have a decent video card and that means they are probably using the Microsoft OpenGL driver which is to put it bluntly sucks.

I had a product on the market that worked using both Graphics32 and OpenGL. The OpenGL version of the app had superior features to the Graphics32 version however, I found most people were unable to use the OpenGL version because of the lack of decent drivers.