1Barcode::UPCA(3)      User Contributed Perl Documentation     Barcode::UPCA(3)
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NAME

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

9       ex. CGI
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11         use GD::Barcode::UPCA;
12         binmode(STDOUT);
13         print "Content-Type: image/png\n\n";
14         print GD::Barcode::UPCA->new('12345678901')->plot->png;
15
16       with Error Check
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18         my $oGdBar = GD::Barcode::UPCA->new('123456789');
19         die $GD::Barcode::UPCA::errStr unless($oGdBar);       #Invalid Length
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DESCRIPTION

22       GD::Barcode::UPCA is a subclass of GD::Barcode and allows you to create
23       UPC-A barcode image with GD.  This module based on "Generate Barcode
24       Ver 1.02 By Shisei Hanai 97/08/22".
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26       new
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28       $oGdBar = GD::Barcode::UPCA->new($sTxt);
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30       Constructor.  Creates a GD::Barcode::UPCA object for $sTxt.  $sTxt has
31       11 or 12 numeric characters([0-9]).  If $sTxt has 11 characters, this
32       module calacurates CD for you.
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34       plot()
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36       $oGd = $oGdBar->plot([Height => $iHeight, NoText => 0 ⎪ 1]);
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38       creates GD object with barcode image for the $sTxt specified at new
39       method.  $iHeight is height of the image. If NoText is 1, the image has
40       no text image of $sTxt.
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42        ex.
43         my $oGdB = GD::Barcode::UPCA->new('12345678901');
44         my $oGD = $oGdB->plot(NoText=>1, Height => 20);
45         # $sGD is a GD image with Height=>20 pixels, with no text.
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47       barcode()
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49       $sPtn = $oGdBar->barcode();
50
51       returns a barcode pattern in string with '1', 'G' and '0'.  '1' means
52       black, 'G' also means black but little bit long, '0' means white.
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54        ex.
55         my $oGdB = GD::Barcode::UPCA->new('12345678901');
56         my $sPtn = $oGdB->barcode();
57         # $sPtn = '';
58
59       $errStr
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61       $GD::Barcode::UPCA::errStr
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63       has error message.
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65       $text
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67       $oGdBar->{$text}
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69       has barcode text based on $sTxt specified in new method.
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AUTHOR

72       Kawai Takanori GCD00051@nifty.ne.jp
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75       The GD::Barocde::UPCA module is Copyright (c) 2000 Kawai Takanori.
76       Japan.  All rights reserved.
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78       You may distribute under the terms of either the GNU General Public
79       License or the Artistic License, as specified in the Perl README file.
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SEE ALSO

82       GD::Barcode
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86perl v5.8.8                       2003-05-29                  Barcode::UPCA(3)
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