1Barcode::Code39(3)    User Contributed Perl Documentation   Barcode::Code39(3)
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NAME

6       GD::Barcode::Code39 - Create Code39 barcode image with GD
7

SYNOPSIS

9       ex. CGI
10
11         use GD::Barcode::Code39;
12         binmode(STDOUT);
13         print "Content-Type: image/png\n\n";
14         print GD::Barcode::Code39->new('*CODE39IMG*')->plot->png;
15
16       with Error Check
17
18         my $oGdBar = GD::Barcode::Code39->new('*123456789;*');
19         die $GD::Barcode::Code39::errStr unless($oGdBar);     #Invalid Characters
20

DESCRIPTION

22       GD::Barcode::Code39 is a subclass of GD::Barcode and allows you to
23       create CODE-39 barcode image with GD.  This module based on "Generate
24       Barcode Ver 1.02 By Shisei Hanai 97/08/22".
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26   new
27       $oGdBar = GD::Barcode::Code39->new($sTxt);
28
29       Constructor.  Creates a GD::Barcode::Code39 object for $sTxt.
30
31   plot()
32       $oGd = $oGdBar->plot([Height => $iHeight, NoText => 0 | 1]);
33
34       creates GD object with barcode image for the $sTxt specified at new
35       method.  $iHeight is height of the image. If NoText is 1, the image has
36       no text image of $sTxt.
37
38        ex.
39         my $oGdB = GD::Barcode::Code39->new('*12345*');
40         my $oGD = $oGdB->plot(NoText=>1, Height => 20);
41         # $sGD is a GD image with Height=>20 pixels, with no text.
42
43   barcode()
44       $sPtn = $oGdBar->barcode();
45
46       returns a barcode pattern in string with '1' and '0'.  '1' means black,
47       '0' means white.
48
49        ex.
50         my $oGdB = GD::Barcode::Code39->new('*12345*');
51         my $sPtn = $oGdB->barcode();
52         # $sPtn = '';
53
54   $errStr
55       $GD::Barcode::Code39::errStr
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57       has error message.
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59   $text
60       $oGdBar->{text}
61
62       has barcode text based on $sTxt specified in new method.
63

AUTHOR

65       Kawai Takanori GCD00051@nifty.ne.jp
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68       The GD::Barocde::Code39 module is Copyright (c) 2000 Kawai Takanori.
69       Japan.  All rights reserved.
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71       You may distribute under the terms of either the GNU General Public
72       License or the Artistic License, as specified in the Perl README file.
73

SEE ALSO

75       GD::Barcode
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79perl v5.16.3                      2003-05-29                Barcode::Code39(3)
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