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barcode::zbar(3pm) [debian man page]

ZBar(3pm)						User Contributed Perl Documentation						 ZBar(3pm)

NAME

       Barcode::ZBar - Perl interface to the ZBar Barcode Reader

SYNOPSIS

       setup:

	   use Barcode::ZBar;

	   my $reader = Barcode::ZBar::Processor->new();
	   $reader->init();
	   $reader->set_data_handler(&my_handler);

       scan an image:

	   my $image = Barcode::ZBar::Image->new();
	   $image->set_format('422P');
	   $image->set_size(114, 80);
	   $image->set_data($raw_bits);
	   $reader->process_image($image);

       scan from video:

	   $reader->set_visible();
	   $reader->set_active();
	   $reader->user_wait();

       collect results:

	   my @symbols = $image->get_symbols();
	   foreach my $sym (@symbols) {
	       print("decoded: " . $sym->get_type() . ":" . $sym->get_data());
	   }

DESCRIPTION

       The ZBar Bar Code Reader is a library for scanning and decoding bar codes from various sources such as video streams, image files or raw
       intensity sensors.  It supports EAN, UPC, Code 128, Code 39 and Interleaved 2 of 5.

       These are the bindings for interacting directly with the library from Perl.

REFERENCE

   Functions
       version()
	   Returns the version of the zbar library as "major.minor".

       increase_verbosity()
	   Increases global library debug by one level.

       set_verbosity(level)
	   Sets global library debug to the indicated level.  Higher numbers give more verbosity.

       parse_config(configstr)
	   Parse a decoder configuration setting into a list containing the symbology constant, config constant, and value to set.  See the
	   documentation for "zbarcam"/"zbarimg" for available configuration options.

   Constants
       Width stream "color" constants:

       SPACE
	   Light area or space between bars.

       BAR Dark area or colored bar segment.

SEE ALSO

       Barcode::ZBar::Processor, Barcode::ZBar::ImageScanner, Barcode::ZBar::Image, Barcode::ZBar::Symbol, Barcode::ZBar::Scanner,
       Barcode::ZBar::Decoder

       zbarimg(1), zbarcam(1)

       http://zbar.sf.net

AUTHOR

       Jeff Brown, <spadix@users.sourceforge.net>

COPYRIGHT AND LICENSE

       Copyright 2008-2009 (c) Jeff Brown <spadix@users.sourceforge.net>

       The ZBar Bar Code Reader is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser Public License as
       published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

perl v5.14.2							    2009-10-23								 ZBar(3pm)

Check Out this Related Man Page

Barcode::Industrial2of5(3pm)				User Contributed Perl Documentation			      Barcode::Industrial2of5(3pm)

NAME

       GD::Barcode::Industrial2of5 - Create Industrial2of5 barcode image with GD

SYNOPSIS

       ex. CGI

	 use GD::Barcode::Industrial2of5;
	 binmode(STDOUT);
	 print "Content-Type: image/png

";
	 print GD::Barcode::Industrial2of5->new('1234567890')->plot->png;

       with Error Check

	 my $oGdBar = GD::Barcode::Industrial2of5->new('A12345678');
	 die $GD::Barcode::Industrial2of5::errStr unless($oGdBar);     #Invalid Characters
	 $oGdBar->plot->png;

DESCRIPTION

       GD::Barcode::Industrial2of5 is a subclass of GD::Barcode and allows you to create Industrial2of5 barcode image with GD.

   new
       $oGdBar = GD::Barcode::Industrial2of5->new($sTxt);

       Constructor.  Creates a GD::Barcode::Industrial2of5 object for $sTxt.  $sTxt has numeric characters([0-9]).

   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::Industrial2of5->new('12345678');
	 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' and '0'.  '1' means black, '0' means white.

	ex.
	 my $oGdB = GD::Barcode::Industrial2of5->new('12345678');
	 my $sPtn = $oGdB->barcode();

   $errStr
       $GD::Barcode::Industrial2of5::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::Industrial2of5 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 v5.12.3							    2003-05-29					      Barcode::Industrial2of5(3pm)
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