<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/doc/aboutqt.doc:1 --> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>About Qt</title> <style type="text/css"><!-- fn { margin-left: 1cm; text-indent: -1cm; } a:link { color: #004faf; text-decoration: none } a:visited { color: #672967; text-decoration: none } body { background: #ffffff; color: black; } --></style> </head> <body> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr bgcolor="#E5E5E5"> <td valign=center> <a href="index.html"> <font color="#004faf">Home</font></a> | <a href="classes.html"> <font color="#004faf">All Classes</font></a> | <a href="mainclasses.html"> <font color="#004faf">Main Classes</font></a> | <a href="annotated.html"> <font color="#004faf">Annotated</font></a> | <a href="groups.html"> <font color="#004faf">Grouped Classes</font></a> | <a href="functions.html"> <font color="#004faf">Functions</font></a> </td> <td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>About Qt</h1> <p> Qt is a multiplatform C++ GUI toolkit created and maintained by<a href="troll.html">Trolltech</a>. It provides application developers with all the functionality needed to build applications with state-of-the-art graphical user interfaces. Qt is fully object-oriented, easily extensible, and allows true component programming. Read the <a href="http://www.trolltech.com/products/qt/whitepaper.html">Whitepaper</a> for a comprehensive technical overview. <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 href="http://www.kde.org/">KDE</a> Linux desktop environment, a standard component of all major Linux distributions. See our <a href="http://www.trolltech.com/success/">Customer Success Stories</a> for some examples of commercial Qt development. <p> Qt is supported on the following platforms: <ul> <li> <b>MS/Windows</b> -- 95, 98, NT 4.0, ME, 2000, and XP <li> <b>Unix/X11</b> -- Linux, Sun Solaris, HP-UX, Compaq Tru64 UNIX, IBM AIX, SGI IRIX and a wide range of others <li> <b>Macintosh</b> -- Mac OS X <li> <b>Embedded</b> -- Linux platforms with framebuffer support. </ul> <p> Qt is released in different editions: <ul> <li> The <a href="commercialeditions.html"><b>Qt Enterprise Edition</a></b> and the <a href="commercialeditions.html"><b>Qt Professional Edition</a></b> provide for commercial software development. They permit traditional commercial software distribution and include free upgrades and Technical Support. For the latest prices, 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 additional <a href="modules.html">modules</a> compared to the Professional Edition. </ul> <p> <ul> <li> The <a href="opensourceedition.html"><b>Qt Open Source Edition</a></b> is available for Unix/X11, Macintosh and Embedded Linux. The Open Source Edition is for the 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>. </ul> <p> <!-- eof --> <p><address><hr><div align=center> <table width=100% cellspacing=0 border=0><tr> <td>Copyright © 2007 <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a> <td align=right><div align=right>Qt 3.3.8</div> </table></div></address></body> </html>