Bar code reader

[C# Programming]

I was wonder if it was possiable to create a bar code reader for in c# for a windows mobile device which can use photos taken by the camera while the program is running.

Also is it possiable to pass another program information and reutrn this information back to my c# program?

I am doing research into a possiable dissatation preposal to create and GPS orinting game.

Any help on how to do this would be very helpful.