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<title>Qt 4.0: Qt Commercial Editions</title>
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<td width="1"> </td><td class="postheader" 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>
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<td align="right" valign="top" width="230"><img src="images/trolltech-logo.png" align="right" width="203" height="32" border="0" /></td></tr></table><h1 align="center">Qt Commercial Editions</h1>
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<p>Several <a href="aboutqt.html">Editions of Qt</a> are available under a commercial license: Qt Console, Qt Desktop Light, and Qt Desktop. See the <a href="editions.html">Qt Editions</a> page for more information.</p>
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<p>You may write commercial, proprietary, or otherwise non-free software <i>only</i> if you have purchased a Commercial Edition of Qt. If you purchase a Commercial Edition, you are entitled to technical support and upgrades.</p>
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<p>If you want to develop Free or Open Source software for release using a recognized Open Source license, you can use the <a href="opensourceedition.html">Open Source Edition</a>.</p>
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<p>Please see the <a href="http://www.trolltech.com/developer/platforms/supported.html">list of supported platforms</a> for up-to-date information about the various platforms and compilers that Qt supports.</p>
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<p>On Trolltech's web site, you can find <a href="http://www.trolltech.com/products/qt/licensing.html">licensing information</a> and <a href="http://www.trolltech.com/products/qt/pricing.html">price lists</a> for Qt Commercial Editions and other Trolltech products.</p>
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<p>To purchase, please visit the <a href="http://www.trolltech.com/purchase/alternative.html">online order form</a>.</p>
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<p>For further information and assistance, please contact Trolltech sales:</p>
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<p>Email: <a href="mailto:sales@trolltech.com">sales@trolltech.com</a>.</p>
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<p>Phone, U.S. office (for North America): <b>1-650-813-1676</b>.</p>
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<p>Phone, Norway office (for the rest of the world): <b>+47 21 60 48 00</b>.</p>
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<td width="30%" align="right"><div align="right">Qt 4.0.0</div></td>
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