> You're missing the point. Bar-code scanners are just special interfaces > to a keyboard. When a scanner scans something, all it does is send the > equivalent keyboard codes, as though someone had typed the numbers into > a regular keyboard.
Rob is describing (I believe) a keyboard wedge type barcode scanner, which has the obvious advantage of simplicity, and is what we usually recommend. It should be noted, however, that in my experience there are two kinds of barcode scanners: keyboard wedge and serial (connected through either an RS-232 or USB connection). The disadvantage to the second type is that you have to write special code to communicate with the device. The only advantage I can think of is that your program clearly knows whether the input is coming from a person typing or from the barcode scanner. As Rob points out, it usually doesn't make any difference. Glenn Lawler ----------------------------------------------------- Home page: http://groups.yahoo.com/group/delphi-en/ To unsubscribe: [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/delphi-en/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
