[http://www.azalea.com/FAQ/%|%The Bar Code FAQ] has valuable information, and is now available in PDF or as HTML. There are lots of other related barcode whitepapers there too. The [http://www.adams1.com/pub/russadam/faq.html%|%BarCode1 FAQ] is an entirely different document. A valuable tool in barcode work is the "[http://www.milk.com/barcode/%|%Barcode Server]". "[http://www.diymods.com/archives/2005/11/feature_lighten.cfm%|%Lighten your keychain]" provides perspective on manipulations feasible with barcodes. ---- [http://www.linuxcanada.com/files/linuxpos_start1.2.10.pdf%|%ZZZ] is a point-of-sale application coded in Tcl. (Currently returning "Page Not Found" errors) [http://www.narrabri.atnf.csiro.au/software_dev/archiving_station/archiver.html%|%Archiver] is an archival application written in Tcl. [http://www.logorrhea.com/cuecat/%|%One CueCat decoder] is written in Tcl. "A fully automated high-throughput HPLC-MS system ..." is an academic article which describes a Tcl-coded biochemical system which employs barcodes. Mads Linden writes, "I don't know if this will help you, but what I did was to download a 3of9 barcode font to my system and then just using that font when sending data to the printer extension from Michael Swartz. Get the font here: http://www.adams1.com/pub/russadam/fonts.html ex. gdi text $hdc 50 50 -text "*MYBARCODESTRING*" -font "{3 of 9} 12" The [http://sourceforge.net/projects/bcdb%|%BarCode DataBase] is coded in [Perl]. [GNU] [http://ar.linux.it/software/#barcode%|%Barcode] is a command-line executable. ---- [Harald Oehlmann] and [kroc] are in the barcode business. Harald has provided a wrapping of the [zint] barcode generation library. ---- [RS] played with [Code 39 generation] And [PS] did the same for [EAN-13 generation] ---- There are "barcode printers" which accept textual Zebra Programming Language (ZPL). Tcl is as good at generating ZPL as any likely competitor. The "Barcode Writer in Pure [Postscript]" [http://www.terryburton.co.uk/barcodewriter/] generates all major one-dimensional symbologies and is open source. Its backend is used by Scribus and KBarcode. A web-based demo is available at http://www.terryburton.co.uk/barcodewriter/generator. ---- [Silas] - 2005.08.18 - I did a little script to figure out the checksum digit of EAN-13 barcodes. See [EAN-13 checksum]. ---- [barcode generation] <> Barcode