Well, since I suggested it, I have to acknowledge that I have never tried using my notebooks' camera for scanning bar codes. I promise to be more careful in future answers.
However, now you have peaked my interest and I will google an answer. I bet the camera will work, it is the software that translates the image and therein may be the answer. I will let you know if I find anything.
The Perfect Speed
"any number is a limit, and perfection doesn't have limits.
Perfect speed, my son, is being there.”
Chiang from "Jonathan Livingston Seagull