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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><!-- /home/edba/dist/qtopia/main-Sunday/qtopia/doc/3rdparty.doc:1 --><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>3rd Party Licenses used in Qt</title><style type="text/css"><!--h3.fn,span.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><td width="200" align="left" valign="top"><a href="index.html"><img height="27" width="472" src="dochead.png" border="0"></a><br><font face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" align="center" size=32>Qtopia</font> <a href="index.html">Home</a> - <a href="qtopiaclasses.html">Classes</a> - <a href="qtopiaannotated.html">Annotated</a> - <a href="qtopiafunctions.html">Functions</a> - <a href="qtindex.html">Qt Embedded</a></td><td align="right" valign="top"> <table border="0" cellpadding="0" cellspacing="0" width="137"> <tr> <td><a href="http://www.trolltech.com/company/about/trolls.html"><img height="100" width="100" src="face.png" border="0"></a></td> <td><img height="100" width="100" src="qtlogo.png" align="top" border="0"></td> </tr> </table></td></tr></table><h1 align=center>3rd Party Licenses used in Qt</h1><p> <p> <!-- toc --><ul><li><a href="#1"> Introduction</a><li><a href="#2"> Freetype 2 (freetype)</a><li><a href="#3"> The Independent JPEG Group's JPEG software (libjpeg)</a><li><a href="#4"> Multiple-image Network Graphics (MNG) Reference Library (libmng)</a><li><a href="#5"> PNG reference library (libpng)</a><li><a href="#6"> Data compression library (zlib)</a></ul><!-- endtoc --><p> <h2> Introduction</h2><a name="1"></a><p> This document describes the third party licenses used in Qt.<p> Run <tt>configure -help</tt> to see any options that may be available forcontrolling the use of these libraries.<p> <h2> Freetype 2 (freetype)</h2><a name="2"></a><p> The <a href="freetype.html">FreeType</a> project provides font rendering for Qt. FreeTypeis distributed under either the FreeType Project License or the GNU PublicLicense. The primary copyright holders are David Turner (david.turner@freetype.org),Robery Wilhelm and Werner Lemberg. More information can be found at http://www.freetype.org and <tt>3rdparty/freetype/docs/freetype2.html</tt>.<p> Qt optionally links against FreeType.<p> See <tt>3rdparty/freetype/docs/FTL.txt</tt> and <tt>3rdparty/freetype/docs/GPL.txt</tt> for license details.<p> See also the files in <tt>3rdparty/opentype</tt> which are used byFreetype.<p> <h2> The Independent JPEG Group's JPEG software (libjpeg)</h2><a name="3"></a><p> <em>This package contains C software to implement JPEG image compression and decompression. JPEG (pronounced "jay-peg") is a standardized compression method for full-color and gray-scale images. JPEG is intended for compressing "real-world" scenes; line drawings, cartoons and other non-realistic images are not its strong suit. JPEG is lossy, meaning that the output image is not exactly identical to the input image.</em> -- quoted from <tt>3rdparty/libjpeg/README</tt>.<p> Qt optionally links against libjpeg in order to provide JPEG viewing and writing.<p> libjpeg is the work of Tom Lane, Philip Gladstone, Jim Boucher,Lee Crocker, Julian Minguillon, Luis Ortiz, George Phillips, Davide Rossi,Guido Vollbeding, Ge' Weijers, and other members of the Independent JPEGGroup.<p> See <tt>3rdparty/libjpeg/README</tt> for license details.<p> <h2> Multiple-image Network Graphics (MNG) Reference Library (libmng)</h2><a name="4"></a><p> <em>The libmng library supports decoding, displaying, encoding, and various other manipulations of the Multiple-image Network Graphics (MNG) format image files. It uses the zlib compression library, and optionally the JPEG library by the Independant JPEG Group (IJG) and/or lcms (little cms), a color-management library by Marti Maria Saguer.</em>-- quoted from <tt>3rdparty/libmng/doc/libmng.txt</tt>.<p> Qt optionally links against libmng in order to provide JPEG viewing and writing.<p> The primary copyright holder for libmng is Gerard Juyn (gerard@libmng.com), andit is distributed under a very free license.<p> See <tt>3rdparty/libmng/LICENSE</tt> for license details.<p> <h2> PNG reference library (libpng)</h2><a name="5"></a><p> <em>Libpng was written as a companion to the PNG specification, as a way of reducing the amount of time and effort it takes to support the PNG file format in application programs.</em> -- quoted from <tt>3rdparty/libpng/libpng.txt</tt>.<p> Qt optionally links against libpng in order to provide JPEG viewing and writing. <p> The primary copyright holder for libpng is Glenn Randers-Pehrson, and it isdistributed under a very free license.<p> See <tt>3rdparty/libpng/LICENSE</tt> for license details.<p> <h2> Data compression library (zlib)</h2><a name="6"></a><p> <em>zlib is a general purpose data compression library. All the code is thread safe. The data format used by the zlib library is described by RFCs (Request for Comments) 1950 to 1952</em> -- quoted from <tt>3rdparty/zlib/README</tt>.<p> Qt optionally links against libz to support libmng.<p> The primary copyright holders for zlib are Jean-loup Gailly and Mark Adler,and it is distributed under a very free license.<p> See <tt>3rdparty/zlib/README</tt> for license details.<p> <!-- eof --><p><address><hr><div align="center"><table width="100%" cellspacing="0" border="0"><tr><td>Copyright © 2001-2004 Trolltech<td><a href="http://www.trolltech.com/trademarks.html">Trademarks</a><td align="right"><div align="right">Qtopia version 2.0.0</div></table></div></address></body></html>⌨️ 快捷键说明
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