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Subject: Re: somewhat OT:  Barcodes and keyboard strokes
From: "Annie" <me@privacy.net>
Date: Thu, 15 Feb 2007 16:25:02 -0600
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On 2007-02-14 drax1313@spamsandwichhotmail.com said:

   > Hello, I'm a lurker on this group.  I have no artistic ability, but
   > I like to see the art, and the art farts are occasionally humorous.
   >
   > Anyway, where I work we do a lot of bar-coding and scanning to help
   > prevent typos in the inventory system.  We are implementing a new
   > system and have a need to be able scan a code that would be the
   > equivalent of pressing the down arrow.  In the past we've been able
   > to barcode spaces and tabs and Carriage returns, but I'm stumped on
   > down arrow.  Is it a real character (I know it's probably not
   > ASCII)?  We are currently using a 3 of 9 barcode font to print the
   > barcodes.
   >
   > I realize this is off topic and I apologize if it is too far off.
   > This was one of the places I thought might be good to ask.  If
   > anyone can help or point me to a better place that would be much
   > appreciated.
   >
   > Also, please keep posting art, I really enjoy it.
   >
   > drax


        The "down arrow" key doesn't generate a character.
        It generates an ASCII code of 00h, and a keyboard
        scan code of 50h.

        The only way to simulate a "down arrow" keypress is
        to stuff the appropriate codes into the keyboard
        buffer, followed by a carriage return.

        If your staff programmers don't know how to do this,
        they should probably be fired for incompetence.

        Since yours is essentially a low-level programming
        question, try a programming newsgroup.  alt.lang.asm
        would be a good choice. And be sure to specify what
        programming language you're using.
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