diff options
Diffstat (limited to 'src/gui/kernel/qsessionmanager.cpp')
| -rw-r--r-- | src/gui/kernel/qsessionmanager.cpp | 53 |
1 files changed, 29 insertions, 24 deletions
diff --git a/src/gui/kernel/qsessionmanager.cpp b/src/gui/kernel/qsessionmanager.cpp index f4b56fd01b..493a321c74 100644 --- a/src/gui/kernel/qsessionmanager.cpp +++ b/src/gui/kernel/qsessionmanager.cpp @@ -1,31 +1,37 @@ /**************************************************************************** ** -** Copyright (C) 2015 The Qt Company Ltd. -** Contact: http://www.qt.io/licensing/ +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ ** ** This file is part of the QtGui module of the Qt Toolkit. ** -** $QT_BEGIN_LICENSE:LGPL21$ +** $QT_BEGIN_LICENSE:LGPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms -** and conditions see http://www.qt.io/terms-conditions. For further -** information use the contact form at http://www.qt.io/contact-us. +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 or version 3 as published by the Free -** Software Foundation and appearing in the file LICENSE.LGPLv21 and -** LICENSE.LGPLv3 included in the packaging of this file. Please review the -** following information to ensure the GNU Lesser General Public License -** requirements will be met: https://www.gnu.org/licenses/lgpl.html and -** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. ** -** As a special exception, The Qt Company gives you certain additional -** rights. These rights are described in The Qt Company LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** @@ -64,22 +70,21 @@ QT_BEGIN_NAMESPACE settings. QSessionManager provides an interface between the application and the - session manager so that the program can work well with the session manager. - In Qt, session management requests for action are handled by the two - signals QGuiApplication::commitDataRequest() and - QGuiApplication::saveStateRequest(). Both provide a reference to a session - manager object as argument, to allow the application to communicate with - the session manager. The session manager can only be accessed through these - functions. + platform's session manager. In Qt, session management requests for action + are handled by the two signals QGuiApplication::commitDataRequest() and + QGuiApplication::saveStateRequest(). Both provide a reference to a + QSessionManager object as argument. The session manager can only be + accessed in slots invoked by these signals. + + \warning If you use QSessionManager, you should disable fallback session + management: QGuiApplication::setFallbackSessionManagementEnabled(). No user interaction is possible \e unless the application gets explicit permission from the session manager. You ask for permission by calling allowsInteraction() or, if it is really urgent, allowsErrorInteraction(). Qt does not enforce this, but the session manager may. - You can try to abort the shutdown process by calling cancel(). The default - commitData() function does this if some top-level window rejected its - closeEvent(). + You can try to abort the shutdown process by calling cancel(). For sophisticated session managers provided on Unix/X11, QSessionManager offers further possibilities to fine-tune an application's session |