bar code readers in Informix-4GL ~ Answered: amber (solid confidence) — Single archived message quotes the full original barcode-reader question and gives a specific, experience-based answer (keyboard-wedge method, named vendor); not confirmed by the asker but self-contained and solid.

Advisory only.

> > 1. They can be hooked up to a serial line with a tee device. When reader > is triggered it sends out string of ascii characters followed by CR > (this is configurable). > correct... > 2. They can be hooked up to AUX port on an ascii terminal. Program would > at the appropriate point send a command to the terminal to set the read > on for the AUX port. Bar code reader would then send ascii string. Program > could then turn off the read for the AUX port. > I've never used them this way. > > Mike Kuhn (uunet!rhlab!kuhn) I set up an Informix-4GL system using barcodes at the Turner Broadcasting Library in Atlanta. The method we used is (what I think is) the most common: A "wedge" between a keyboard and the terminal. It simply appears as a very fast typist to the application, so there are no compatibility problems whatsoever. The ones we used were from Worthington Data in Santa Cruz. -John Wheeler Group One, SF