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

       Kawai Takanori GCD00051@nifty.ne.jp

       The GD::Barocde::QRcode module is Copyright (c) 2003 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.

       GD::Barcode::QRcode is a subclass of GD::Barcode and allows you to create QRcode barcode image with GD.
       This module based on "QRcode image CGI version 0.50 (C)2000-2002,Y.Swetake".

   new$oGdBar = GD::Barcode::QRcode->new($sTxt,
                           { Ecc => EccMode,
                             Version => Version,
                             ModuleSize => Sizeof1modlue,
                           });

       Constructor. Creates a GD::Barcode::QRcode object for $sTxt.

       Parameters:

       Ecc Ecc mode. Select 'M', 'L', 'H' or 'Q' (Default = 'M').

       Version
           Version ie. size of barcode image (Default = auto select).

       ModuleSize
           Size of modules(barcode unit)  (Default = 1).

   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::QRcode->new('1234567');
         my $oGD = $oGdB->plot();
         # $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::QRcode->new('1234567');
         my $sPtn = $oGdB->barcode();

   $errStr
       $GD::Barcode::QRcode::errStr

       has error message.

   $text
       $oGdBar->{$text}

       has barcode text based on $sTxt specified in new method.

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

       GD::Barcode

perl v5.36.0                                       2023-11-03                           GD::Barcode::QRcode(3pm)

ex.CGI

         use GD::Barcode::QRcode;
         binmode(STDOUT);
         print "Content-Type: image/png\n\n";
         print GD::Barcode::QRcode->new('1234567')->plot->png;

       withUnitSize,ECCsettings

         my $oGdBar = GD::Barcode::QRcode->new('123456789',
                                   { Ecc => 'L', Version=>2, ModuleSize => 2}
                               );