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// Copyright (C) 2020 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
/*!
\page dbus-changes-qt6.html
\title Changes to Qt D-Bus
\ingroup changes-qt-5-to-6
\brief Migrate Qt DBus to Qt 6.
Qt 6 is a result of the conscious effort to make the framework more
efficient and easy to use.
We try to maintain binary and source compatibility for all the public
APIs in each release. But some changes were inevitable in an effort to
make Qt a better framework.
In this topic we summarize those changes in Qt DBus, and provide
guidance to handle them.
\section1 API changes
The QtDBus module has undergone some basic consolidation and
cleanup. There should be minimal porting effort to be able to switch to Qt6.
\section2 The QDBusMessage class
The QDBusMessage::call() and QDBusMessage::asyncCall() methods with a fixed
size of arguments have been removed in Qt6.
\section2 The QDBusArgument class
The QDBusArgument::operator<<() specializations for QHash, QMap and QList
have been unified into common specializations for associative containers.
\section2 The QDBusConnection class
The QDBusConnection::sender() function has been removed in Qt6.
\section2 The QDBusMessage class
The QDBusMessage::createErrorReply() function now takes the QString \c name
argument by const reference instead of taking by value.
\section2 The QDBusPendingReply class
QDBusPendingReply has been changed to be a variadic template class in order
to support more than 8 template parameters now. The template parameters
are the types that will be used to extract the contents of the reply's data.
*/
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