Coding Keyboard Magnetic Card Reader

I'm developing a POS system that I'm integrating with a credit card verification software. Has anybody integrated a keyboard magnetic card reader with VB? The trick here is to always set focus on a text box. This text box will capture any data scanned in. I thought about using a timer to set focus into a text box. Is there a better way?

Thanks

I´m going to start a project that will make use of a code bar scanner and
i´m planning to set the foucus to the text box whenever any other control has
the focus. What i mean is that i have to monitor the event GotFocus of the
other controls and then pass it to the text box.

Hope this approach will help you.

Saludos...;)