104 lines
3.3 KiB
C++
104 lines
3.3 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the documentation of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of The Qt Company Ltd nor the names of its
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** contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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//! [0]
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int main(int argc, char *argv[])
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{
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QApplication::setDesktopSettingsAware(false);
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QApplication app(argc, argv);
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...
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return app.exec();
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}
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//! [0]
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//! [1]
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MyMainWidget::MyMainWidget(QWidget *parent)
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:QWidget(parent)
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{
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QGuiApplication::setFallbackSessionManagementEnabled(false);
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connect(qApp, SIGNAL(commitDataRequest(QSessionManager)), SLOT(commitData(QSessionManager)));
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}
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void MyMainWidget::commitData(QSessionManager& manager)
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{
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if (manager.allowsInteraction()) {
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int ret = QMessageBox::warning(
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mainWindow,
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tr("My Application"),
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tr("Save changes to document?"),
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QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel);
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switch (ret) {
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case QMessageBox::Save:
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manager.release();
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if (!saveDocument())
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manager.cancel();
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break;
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case QMessageBox::Discard:
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break;
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case QMessageBox::Cancel:
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default:
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manager.cancel();
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}
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} else {
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// we did not get permission to interact, then
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// do something reasonable instead
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}
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}
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//! [1]
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//! [2]
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appname -session id
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//! [2]
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//! [3]
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foreach (const QString &command, mySession.restartCommand())
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do_something(command);
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//! [3]
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//! [4]
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foreach (const QString &command, mySession.discardCommand())
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do_something(command);
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//! [4]
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