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

       GD::Barcode::UPCE - Create UPC-E barcode image with GD

       ex. CGI

         use GD::Barcode::UPCE;
         print "Content-Type: image/png\n\n";
         print GD::Barcode::UPCE->new('123456')->plot->png;

       with Error Check

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

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

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

       Constructor.  Creates a GD::Barcode::UPCE object for $sTxt.  $sTxt has
       6 or 7 or 8 numeric characters([0-9]).  If $sTxt has 6 characters, this
       module adds '0' at the front of $sTxt.  and calculates CD for you.  If
       $sTxt has 7 characters, this module calaculates CD for you.

       $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::UPCE->new('123456');
         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', 'G' and '0'.  '1' means
       black, 'G' also means black but little bit long, '0' means white.

         my $oGdB = GD::Barcode::UPCE->new('123456');
         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::UPCE 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.


perl v5.12.1                      2003-05-29                  Barcode::UPCE(3)

Scannen Sie den Barcode um die Webseite zu öffnen

Quelle: http://www.trinler.net/de/service/doc/linux/man.html?command=GD%3A%3ABarcode%3A%3AUPCE
Gedruckt am: 18.10.2017 03:44 GMT+0200 (2017-10-18T03:44:39+02:00)