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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Qt Toolkit - About Qt</title><style type="text/css"><!--
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<h1 align=center> About Qt</h1><br clear="all">
<p>Qt is a cross-platform C++ GUI application framework. It provides
application developers with all the functionality needed to build
state-of-the-art graphical user interfaces. Qt is fully
object-oriented, easily extensible, and allows true component
programming.
<p>
Since its commercial introduction in early
1996, Qt has formed the basis of many thousands of successful
applications worldwide. Qt is also the basis of the popular
<a class="r" href="http://www.kde.org/">KDE</a> Linux
desktop environment, a standard component of all major Linux distributions.
<p>
Qt is supported on the following platforms:
<ul>
<li><b>MS/Windows</b> - 95, 98, NT, and 2000
<li><b>Unix/X11</b> - Linux, Sun Solaris, HP-UX, Digital Unix,
IBM AIX, SGI IRIX and a wide range of others
<li><b>Embedded</b> - Linux platforms with framebuffer support.
</ul>
<p>
Qt is a product of <a href="troll.html">Trolltech</a>.
<p>
Qt is released in different editions:
<p>
<dl>
<dd><b>Qt Enterprise Edition</b> and <b>Qt Professional Edition</b>
provide for commercial software development.
They permits traditional commercial software
distribution and includes free upgrades and Technical Support
Service. For the latest prices, please see the Trolltech web site, <a
href="http://www.trolltech.com/pricing.html">Pricing and Availability</a>
page, or contact <a href="mailto:sales@trolltech.com">sales@trolltech.com</a>.
The Enterprise Edition offers <a href="modules.html">extended modules</a> over the Professional Edition.
<p>
<dd><b>Qt Free Edition</b> is the Unix/X11 version of Qt
available for development of <em>Free and Open Source software</em>
only. It is provided free of charge under the terms of both the
<a href="license.html">Q Public License</a> and the
<a href="gpl.html">GNU General Public License</a>.
The latest version is available for
<a href="http://www.trolltech.com/dl/qtfree-dl.html">download</a>.
<p>
<dd><b>Qt/Embedded Free Edition</b> is the Embedded version of Qt
available for development of <em>Free software</em>
only. It is provided free of charge under the terms of the
<a href="gpl.html">GNU General Public License</a>.
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