source: trunk/src/dbus/qdbusreply.cpp@ 846

Last change on this file since 846 was 846, checked in by Dmitry A. Kuminov, 14 years ago

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.

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1/****************************************************************************
2**
3** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the QtDBus module of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
15**
16** GNU Lesser General Public License Usage
17** Alternatively, this file may be used under the terms of the GNU Lesser
18** General Public License version 2.1 as published by the Free Software
19** Foundation and appearing in the file LICENSE.LGPL included in the
20** packaging of this file. Please review the following information to
21** ensure the GNU Lesser General Public License version 2.1 requirements
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23**
24** In addition, as a special exception, Nokia gives you certain additional
25** rights. These rights are described in the Nokia Qt LGPL Exception
26** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
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33** ensure the GNU General Public License version 3.0 requirements will be
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40****************************************************************************/
41
42#include "qdbusreply.h"
43#include "qdbusmetatype.h"
44#include "qdbusmetatype_p.h"
45#include <QDebug>
46
47#ifndef QT_NO_DBUS
48
49QT_BEGIN_NAMESPACE
50
51/*!
52 \class QDBusReply
53 \inmodule QtDBus
54 \since 4.2
55
56 \brief The QDBusReply class stores the reply for a method call to a remote object.
57
58 A QDBusReply object is a subset of the QDBusMessage object that represents a method call's
59 reply. It contains only the first output argument or the error code and is used by
60 QDBusInterface-derived classes to allow returning the error code as the function's return
61 argument.
62
63 It can be used in the following manner:
64 \snippet doc/src/snippets/code/src_qdbus_qdbusreply.cpp 0
65
66 If the remote method call cannot fail, you can skip the error checking:
67 \snippet doc/src/snippets/code/src_qdbus_qdbusreply.cpp 1
68
69 However, if it does fail under those conditions, the value returned by QDBusReply::value() is
70 a default-constructed value. It may be indistinguishable from a valid return value.
71
72 QDBusReply objects are used for remote calls that have no output
73 arguments or return values (i.e., they have a "void" return
74 type). Use the isValid() function to test if the reply succeeded.
75