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

       GD::Barcode - Create barcode image with GD

       ex. CGI

         use GD::Barcode::UPCE;
         print "Content-Type: image/png\n\n";
         print GD::Barcode->new('EAN13', '123456789012')->plot->png;

       with Error Check

         my $oGdBar = GD::Barcode->new('EAN13', '12345678901');
         die $GD::Barcode::errStr unless($oGdBar);     #Invalid Length

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

       From 1.14, you can use this module even if no GD (except plot method).

       $oGdBar = GD::Barcode::UPCE->new($sType, $sTxt);

       Constructor.  Creates a GD::Barcode::$sType object for $sTxt.

       $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.

         my $oGdB = GD::Barcode->new('EAN13', '123456789012');
         my $oGD = $oGdB->plot(NoText=>1, Height => 20);
         # $sGD is a GD image with Height=>20 pixels, with no text.

       $sPtn = $oGdBar->barcode();

       returns a barcode pattern in string with '1' and '0'.  '1' means black,
       '0' means white.

         my $oGdB = GD::Barcode->new('UPCE', '123456789012');
         my $sPtn = $oGdB->barcode();
         # $sPtn = '';


       has error message.


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

       Kawai Takanori GCD00051@nifty.ne.jp

       The GD::Barocde 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.

       GD GD::Barcode subclasses

perl v5.12.1                      2004-04-24                        Barcode(3)

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Quelle: http://www.trinler.net/de/service/doc/linux/man.html?command=GD%3A%3ABarcode
Gedruckt am: 12.12.2017 17:15 GMT+0100 (2017-12-12T17:15:00+01:00)