Imager::QRCode(3p)

NAME
Imager::QRCode - Generate QR Code with Imager using libqrencode

SYNOPSIS
    use Imager::QRCode;

    my $qrcode = Imager::QRCode->new(
        size          => 2,
        margin        => 2,
        version       => 1,
        level         => 'M',
        casesensitive => 1,
        lightcolor    => Imager::Color->new(255, 255, 255),
        darkcolor     => Imager::Color->new(0, 0, 0),
    );
    my $img = $qrcode->plot("blah blah");
    $img->write(file => "qrcode.gif")
      or die "Failed to write: " . $img->errstr;

    # or exporting function
    use Imager::QRCode qw(plot_qrcode);

    my $img = plot_qrcode("blah blah", \%params);
    $img->write(file => "qrcode.gif")
      or die "Failed to write: " . $img->errstr;

DESCRIPTION
This module allows you to generate QR Code with Imager. This module use libqrencode '2.0.0' and above.

METHODS

new
        $qrcode = Imager::QRCode->new(%params);

    The "new()" constructor method instantiates a new Imager::QRCode object. "new()" accepts the following parameters.

    •   "size" - Horizontal and vertical size of module(dot). Default is 4.

    •   "margin" - Margin size of QR Code. Default is 3.

    •   "level" - Error correction level. Valid values are 'M', 'L', 'Q' or 'H'. Default is 'L'.

    •   "version" - Version of the symbol. If specify '0', this module chooses the minimum version for the input data. Default is '0'.

    •   "mode" - Encoding mode. Valid values are 'numerical', 'alpha-numerical', '8-bit' or 'kanji'. Default is '8-bit'.

        If not give "casesensitive" then should be given "mode". If 'kanji' is given, characters will be encoded as Shift-JIS characters. If '8-bit' is given, all of non-alpha-numerical characters will be encoded as is. If you want to embed UTF-8 string, choose '8-bit'.

    •   "casesensitive" - If your application is case-sensitive using 8-bit characters, set to '1'. Default is '0'.

plot($text)
        $img = $qrcode->plot("blah blah");

    Create a new QR Code image. This method returns Imager object plotted QR Code with the given text.

EXPORTABLE FUNCTION

plot_qrcode($text, \%params)
    $text is input text. %params is same paramater as "new()".

SEE ALSO
"Imager", "http://www.qrcode.com/", "http://megaui.net/fukuchi/works/qrencode/index.en.html"

AUTHOR
Yoshiki KURIHARA "<kurihara __at__ cpan.org>"

THANKS
Tokuhiro Matsuno

LICENCE AND COPYRIGHT
Copyright (c) 2011, Yoshiki KURIHARA "<kurihara __at__ cpan.org>".

This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See perlartistic.