reading thro an USB port

Hi!

I have some values from an experiment being sent to an A/D converter & the digital signals
are being sent through an USB port in to the computer.
I would like to read the values into the Computer with Visual C ++ . BEcause i am a
novice at programming i would be greatful if someone suggests me a code ( or a message if more
info is needed )
If this succedes i would further like to control the samplig speed of my A/D converter with c++ ... but in the next step ;-)

Regards!

S.R

http://www.lvr.com/usb.htm