Thank you Frinavale for your replay.

The barcode reader is working properly like a keyboard without any driver software, immediatly after i connected to the computer, i need only to stop it from working through my application using VC#.

The manufactory didn't give me any details about this.
from this website you can see the barcode reader which i purchased.

http://www.svbinternat ional.com/bar_code_scanne rs/bar_code_scanne rusb.htm...

Hello everybody

I'm developing application using visual C#, and also using Barcode reader connected to USB port, some time i need to stop the barcode reader from reading when the cursor will be in another TextBox, for example when it is inside the price TextBox i don't want it to work.
Please if you have any information it will be helpful to me.
thanks in advance to all of you.