1Barcode::NW7(3)       User Contributed Perl Documentation      Barcode::NW7(3)
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NAME

6       GD::Barcode::NW7 - Create NW7 barcode image with GD
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SYNOPSIS

9       ex. CGI
10
11         use GD::Barcode::NW7;
12         binmode(STDOUT);
13         print "Content-Type: image/png\n\n";
14         print GD::Barcode::NW7->new('123456789012')->plot->png;
15
16       with Error Check
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18         my $oGdBar = GD::Barcode::NW7->new('123456789E');
19         die $GD::Barcode::NW7::errStr unless($oGdBar);        #Invalid Characters
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DESCRIPTION

22       GD::Barcode::NW7 is a subclass of GD::Barcode and allows you to create
23       NW7 barcode image with GD.  This module based on "Generate Barcode Ver
24       1.02 By Shisei Hanai 97/08/22".
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26   new
27       $oGdBar = GD::Barcode::NW7->new($sTxt);
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29       Constructor.  Creates a GD::Barcode::NW7 object for $sTxt.  $sTxt has
30       variable length string with (0-9, - $ / . + ABCD).
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32   plot()
33       $oGd = $oGdBar->plot([Height => $iHeight, NoText => 0 | 1]);
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35       creates GD object with barcode image for the $sTxt specified at new
36       method.  $iHeight is height of the image. If NoText is 1, the image has
37       no text image of $sTxt.
38
39        ex.
40         my $oGdB = GD::Barcode::NW7->new('123456789012');
41         my $oGD = $oGdB->plot(NoText=>1, Height => 20);
42         # $sGD is a GD image with Height=>20 pixels, with no text.
43
44   barcode()
45       $sPtn = $oGdBar->barcode();
46
47       returns a barcode pattern in string with '1' and '0'.  '1' means black,
48       '0' means white.
49
50        ex.
51         my $oGdB = GD::Barcode::NW7->new('123456789012');
52         my $sPtn = $oGdB->barcode();
53         # $sPtn = '';
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55   $errStr
56       $GD::Barcode::NW7::errStr
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58       has error message.
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60   $text
61       $oGdBar->{$text}
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63       has barcode text based on $sTxt specified in new method.
64

AUTHOR

66       Kawai Takanori GCD00051@nifty.ne.jp
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69       The GD::Barocde::NW7 module is Copyright (c) 2000 Kawai Takanori.
70       Japan.  All rights reserved.
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72       You may distribute under the terms of either the GNU General Public
73       License or the Artistic License, as specified in the Perl README file.
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SEE ALSO

76       GD::Barcode
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80perl v5.16.3                      2003-05-29                   Barcode::NW7(3)
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