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
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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;
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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
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28       $oGdBar = GD::Barcode::NW7->new($sTxt);
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30       Constructor.  Creates a GD::Barcode::NW7 object for $sTxt.  $sTxt has
31       variable length string with (0-9, - $ / . + ABCD).
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33       plot()
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35       $oGd = $oGdBar->plot([Height => $iHeight, NoText => 0 ⎪ 1]);
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37       creates GD object with barcode image for the $sTxt specified at new
38       method.  $iHeight is height of the image. If NoText is 1, the image has
39       no text image of $sTxt.
40
41        ex.
42         my $oGdB = GD::Barcode::NW7->new('123456789012');
43         my $oGD = $oGdB->plot(NoText=>1, Height => 20);
44         # $sGD is a GD image with Height=>20 pixels, with no text.
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46       barcode()
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48       $sPtn = $oGdBar->barcode();
49
50       returns a barcode pattern in string with '1' and '0'.  '1' means black,
51       '0' means white.
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53        ex.
54         my $oGdB = GD::Barcode::NW7->new('123456789012');
55         my $sPtn = $oGdB->barcode();
56         # $sPtn = '';
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58       $errStr
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60       $GD::Barcode::NW7::errStr
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62       has error message.
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64       $text
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66       $oGdBar->{$text}
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68       has barcode text based on $sTxt specified in new method.
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AUTHOR

71       Kawai Takanori GCD00051@nifty.ne.jp
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74       The GD::Barocde::NW7 module is Copyright (c) 2000 Kawai Takanori.
75       Japan.  All rights reserved.
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77       You may distribute under the terms of either the GNU General Public
78       License or the Artistic License, as specified in the Perl README file.
79

SEE ALSO

81       GD::Barcode
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85perl v5.8.8                       2003-05-29                   Barcode::NW7(3)
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