Key codes for number pad?

Are there any key codes for the number pad? Specifically, I would like to use the 1,2, and 3 keys on the number pad, but the only key codes I can find are for the 1, 2, and 3 on the actual keyboard (above the letters)? Are there key codes and I am missing them, if so, what are they, or is it not possible to use the number pad?

When looking at the keycode mapping, check out the column, "pad1, pad2, pad3" etc.

e.g., see:

[URL]http://www.empirisoft.com/directrt/help/directrt_key_codes.htm[/URL]

Thank you!