Barcode::UPCE(3) User Contributed Perl Documentation Barcode::UPCE(3)NAMEGD::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
DESCRIPTIONGD::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@nifty.ne.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
perl v5.14.1 2003-05-29 Barcode::UPCE(3)
