I want to lock out the PC keyboard while allowing barcode reader input

I have an application that uses a barcode reader to enter part numbers.  I have been asked by manglement if I can lock-out the keyboard to prevent the users from typing in the part numbers (too prone to error in typing).  As the barcode reader is a separate USB port from the keyboard, is there a way to identify the keyboard port and disable it programmatically?

Since your barcode reader is USB, you may have the ability to set it up as a COM port.  Several USB readers will either behave as a keyboard or a COM port.  You would then have to modify your software to look at the COM Port.  You can change the control to an indicator and the user will not be able to do anything.
The other option, which is what I typically do, is to add prefix and suffix characters to the barcode scanner.  I pick a prefix that corresponds to a LabVIEW Key Navigation settign to set focus to the control.  This way, whenever the barcode scanner scans, the control is automatically highlighted and the barcode fills end.  I usually use a suffix of the ENTER key so the data is entered.
This way, you can hide your control off-screen so users cannot see it.  Use an indicator on-screen.  You can even set the off-screen control to be skipped while tabbing.  The other nice thing with the prefix is I can simulate the barcode with the keyboard by using the special key navigation sequence.  This is not 100% tamper-proof, but most operators aren't going to know what you are doing to skip the barcode reader unless you show them.

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