| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the documentation of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:FDL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
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| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU Free Documentation License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Free |
| ** Documentation License version 1.3 as published by the Free Software |
| ** Foundation and appearing in the file included in the packaging of |
| ** this file. Please review the following information to ensure |
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| ** $QT_END_LICENSE$ |
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| ****************************************************************************/ |
| |
| /*! |
| \page opensourcelicense.html |
| |
| \title Open Source Licensing of Qt |
| \ingroup licensing |
| \brief Information about open source licensing of Qt. |
| |
| Free and Open Source Software (FOSS) is software that comes with a license |
| that gives users certain rights. In particular the right to use the |
| software, to modify it, to obtain its source, and to pass it on (under |
| the same terms). Notice that the term "free" is about rights, not |
| money. The Free Software Foundation, the creator of the GNU GPL, speaks |
| of free in this context as in "free speech", not as in "no cost". |
| |
| The Qt Company supports the free software concept by providing the Qt Open Source |
| Edition, which is licensed under the \l{GNU Lesser General Public License (LGPL)} |
| version 3. You can use this edition of Qt to create and distribute software with licenses |
| that are compatible with this free software license. |
| |
| Additionally, the \l{Qt Examples and Tutorials}{examples} included with Qt are provided |
| under the terms of the \l{BSD 3-Clause "New" or "Revised" License}. See also |
| \l{License of Qt examples}. |
| |
| The support of open source with the Open Source Versions of Qt has enabled large |
| successful software projects like KDE to thrive, with thousands of developers |
| around the world using open source versions of Qt at no cost to themselves. |
| |
| The Open Source Edition can be downloaded from the \l{Downloads} page. |
| |
| More information on Free and Open Source software is available online. |
| |
| \list |
| \li GNU LGPL: \l http://www.gnu.org/ |
| \li Open Source licensing: \l http://www.opensource.org/ |
| \endlist |
| |
| See \l{Licenses Used in Qt} for a collection of documents about licenses |
| used in Qt. |
| |
| Information about Qt Commercial License Agreements is available |
| in the \l{Qt Licensing Overview} on the Qt website. |
| |
| If you are in doubt what edition of Qt is right for your project, |
| please contact us: \l {http://www.qt.io/contact-us/}. |
| |
| */ |