GD::Barcode::UPCE - phpMan

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

SYNOPSIS
    *ex. CGI*

      use GD::Barcode::UPCE;
      binmode(STDOUT);
      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

DESCRIPTION
    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".

  new
    *$oGdBar* = GD::Barcode::UPCE->new(*$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.

  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::UPCE->new('123456');
      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::UPCE->new('123456');
      my $sPtn = $oGdB->barcode();
      # $sPtn = '';

  $errStr
    $GD::Barcode::UPCE::errStr

    has error message.

  $text
    $oGdBar->{$text}

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

AUTHOR
    Kawai Takanori GCD00051 AT nifty.jp

COPYRIGHT
    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.

SEE ALSO
    GD::Barcode