Visual Basic, USB Barcode Scanners

USB Barcode Scanners

Author	Message
Craig Whitem #1 / 2	USB Barcode Scanners Has anyone had any experience with USB barcode scanners? Our application currently uses serial barcode scanners and we would like to also use USB scanners. Only catch is we do not want the user to be able to use the keyboard to enter the barcode (from my experience USB scanners use the keyboard buffer). Regards, Craig Whiteman Please remove "MYBOXERSHORTS" to email me.
Sun, 08 Feb 2004 07:37:54 GMT

Don Bradne #2 / 2	USB Barcode Scanners Quote: >Has anyone had any experience with USB barcode scanners? >Our application currently uses serial barcode scanners and we would like to also >use USB scanners. Only catch is we do not want the user to be able to use the >keyboard to enter the barcode (from my experience USB scanners use the keyboard >buffer). I use USB scanners (Symbol LS4004i) and they do indeed output keyboard emulation. For me that's not a problem, because a) I wouldn't care if the keyboard were used and b) the keyboard is tucked away because the application is touch screen. A little off-the cuff thinking here. The scanner is programmable, and I have it send F6 at the start of the scan, and a carriage return at the end. When my form receives the F6 it sets focus to an off-screen text box. I can think of a few ways to ensure that a keyboard wasn't used, such as enabling/disabling the text box with the start and end. Make the starting code odd enough and don't tell anybody what it is! -- Don Bradner www.arcatapet.net VB MVP
Sun, 08 Feb 2004 09:06:59 GMT

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