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Barode Printing

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Old 11-16-2004
Barode Printing
I am trying to print a UPC-A barcode form UNIX to a epson dot matrix printer.

At the moment I can print EAN 8 using the following HEX string,

1B 10 41 04 00 01 00 06 .. creates the barcode
1b 10 42 08 .. prints the barcode

And this works fine but when I try to do something similar for a UPC-A barcode it doesn't work.

1B 10 41 04 01 00 00 06 .. create the barcode
1B 10 42 0C .. print the barcode.

Can somebody help me please.

Thanks,
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LEARN ABOUT CENTOS

gd::barcode::upca

Barcode::UPCA(3)					User Contributed Perl Documentation					  Barcode::UPCA(3)

NAME

       GD::Barcode::UPCA - Create UPC-A barcode image with GD

SYNOPSIS

       ex. CGI

	 use GD::Barcode::UPCA;
	 binmode(STDOUT);
	 print "Content-Type: image/png

";
	 print GD::Barcode::UPCA->new('12345678901')->plot->png;

       with Error Check

	 my $oGdBar = GD::Barcode::UPCA->new('123456789');
	 die $GD::Barcode::UPCA::errStr unless($oGdBar);       #Invalid Length

DESCRIPTION

       GD::Barcode::UPCA is a subclass of GD::Barcode and allows you to create UPC-A barcode image with GD.  This module based on "Generate
       Barcode Ver 1.02 By Shisei Hanai 97/08/22".

   new
       $oGdBar = GD::Barcode::UPCA->new($sTxt);

       Constructor.  Creates a GD::Barcode::UPCA object for $sTxt.  $sTxt has 11 or 12 numeric characters([0-9]).  If $sTxt has 11 characters,
       this module calacurates CD for you.

   plot()
       $oGd = $oGdBar->plot([Height => $iHeight, NoText => 0 | 1]);

       creates GD object with barcode image for the $sTxt specified at new method.  $iHeight is height of the image. If NoText is 1, the image has
       no text image of $sTxt.

	ex.
	 my $oGdB = GD::Barcode::UPCA->new('12345678901');
	 my $oGD = $oGdB->plot(NoText=>1, Height => 20);
	 # $sGD is a GD image with Height=>20 pixels, with no text.

   barcode()
       $sPtn = $oGdBar->barcode();

       returns a barcode pattern in string with '1', 'G' and '0'.  '1' means black, 'G' also means black but little bit long, '0' means white.

	ex.
	 my $oGdB = GD::Barcode::UPCA->new('12345678901');
	 my $sPtn = $oGdB->barcode();
	 # $sPtn = '';

   $errStr
       $GD::Barcode::UPCA::errStr

       has error message.

   $text
       $oGdBar->{$text}

       has barcode text based on $sTxt specified in new method.

AUTHOR

       Kawai Takanori GCD00051@nifty.ne.jp

COPYRIGHT

       The GD::Barocde::UPCA module is Copyright (c) 2000 Kawai Takanori. Japan.  All rights reserved.

       You may distribute under the terms of either the GNU General Public License or the Artistic License, as specified in the Perl README file.

SEE ALSO

       GD::Barcode

perl v5.16.3							    2003-05-29							  Barcode::UPCA(3)