08-27-2005
Hello again,
i remembered that some cloned the harddisk and so they had
the same installation on different computers, but each of them
got different ID's.
Is the ID written each time of booting to that files?
UXNI
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LEARN ABOUT DEBIAN
barcode::zbar::processor
ZBar::Processor(3pm) User Contributed Perl Documentation ZBar::Processor(3pm)
NAME
Barcode::ZBar::Processor - self-contained bar code reader
SYNOPSIS
setup:
use Barcode::ZBar;
my $reader = Barcode::ZBar::Processor->new();
$reader->init("/dev/video1", 1);
$reader->parse_config('code39.disable');
$reader->set_data_handler(&my_handler);
scan an image:
$reader->process_image($image);
scan from video:
$reader->set_visible();
$reader->set_active();
$reader->user_wait();
DESCRIPTION
A Barcode::ZBar::Processor may be used to quickly create stand-alone bar code scanning applications. It has interfaces to scan images or
video and to optionally display a video/image preview to a window.
This interface is not well suited for integration with an existing GUI, as the library manages the optional preview window and any user
interaction. Use a Barcode::ZBar::ImageScanner or Investigate the avilable widget interfaces for GUI applications.
REFERENCE
Methods
new()
Create a new bar code reader instance.
init([video_device], [enable_display])
Open a video input device and/or prepare to display output.
set_data_handler([handler], [closure])
Setup a callback to process results whenever new results are available from the video stream or a static image. The specified callable
will be invoked with the associated Barcode::ZBar::Processor object and closure as arguments. Closure may be achieved either using
standard Perl closure or by manually passing a scalar via closure.
is_visible()
set_visible([visible])
Test/set visibility of the output window.
set_active([active])
Enable/disable video streaming and scanning for bar codes.
get_results()
Return a list of Barcode::ZBar::Symbol results from the last scanned image or video frame.
user_wait([timeout])
Wait for the user to press a key/button or close the window. Bar codes will continue to be processed if video is active.
process_one([timeout])
Enable video and scan until at least one barcode is found. Note that multiple results may still be returned.
process_image([image])
Scan a Barcode::ZBar::Image for bar codes.
parse_config(configstr)
Apply a decoder configuration setting. See the documentation for "zbarcam"/"zbarimg" for available configuration options.
request_size(width, height)
Request a preferred size for the video image from the device. The request may be adjusted or completely ignored by the driver. Must
be called before "init()"
SEE ALSO
Barcode::ZBar, Barcode::ZBar::Image, Barcode::ZBar::ImageScanner
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::Processor(3pm)