How HID devices work when programming?

Posted by user1008476 on Stack Overflow See other posts from Stack Overflow or by user1008476
Published on 2012-06-04T10:26:39Z Indexed on 2012/06/04 10:41 UTC
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barcode-scanner

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hid

I have a barcode scanner works as HID device. Everytime a barcode scans it goes directly to windows keyboard, for example if I open notepad I can see the barcode typed there.

As far as I know programmatically is it possible to to read HID data from your HID devices.

But what happens if the user is already on a form with a text edit control? The scanned code will go inside the text box.

Can you block incoming text and make a background-only processing?

Can you explain the theory please?

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