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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\n\n";
         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 v5.12.1                      2003-05-29                  Barcode::UPCA(3)
 

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Quelle: http://www.trinler.net/de/service/doc/linux/man.html?command=GD%3A%3ABarcode%3A%3AUPCA
Gedruckt am: 11.12.2017 16:00 GMT+0100 (2017-12-11T16:00:24+01:00)