Revision control
++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #include <QString>
++ #include <QDBusConnection>
++ #include <QDBusArgument>
++ #include <QDBusMetaType>
++ #include <QDBusMessage>
++ #include <QDBusContext>
++
++ //! [0]
++ class MyObject: public QObject,
++ protected QDBusContext
++ {
++ Q_OBJECT
++
++ QDBusConnection conn;
++ QDBusMessage msg;
++
++ //...
++
++ protected slots:
++ void process();
++ public slots:
++ void methodWithError();
++ QString methodWithDelayedReply();
++ };
++
++ void MyObject::methodWithError()
++ {
++ sendErrorReply(QDBusError::NotSupported,
++ "The method call 'methodWithError()' is not supported");
++ }
++
++ QString MyObject::methodWithDelayedReply()
++ {
++ conn = connection();
++ msg = message();
++ setDelayedReply(true);
++ QMetaObject::invokeMethod(this, &MyObject::process, Qt::QueuedConnection);
++ return QString();
++ }
++ //! [0]