source: trunk/src/dbus/qdbuspendingreply.cpp@ 240

Last change on this file since 240 was 2, checked in by Dmitry A. Kuminov, 16 years ago

Initially imported qt-all-opensource-src-4.5.1 from Trolltech.
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1/****************************************************************************
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3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** Contact: Qt Software Information ([email protected])
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6** This file is part of the QtDBus module of the Qt Toolkit.
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41
42#include "qdbuspendingreply.h"
43#include "qdbuspendingcall_p.h"
44#include "qdbusmetatype.h"
45
46/*!
47 \class QDBusPendingReply
48 \inmodule QtDBus
49 \since 4.5
50
51 \brief The QDBusPendingReply class contains the reply to an asynchronous method call
52
53 The QDBusPendingReply is a template class with up to 8 template
54 parameters. Those parameters are the types that will be used to
55 extract the contents of the reply's data.
56
57 This class is similar in functionality to QDBusReply, but with two
58 important differences:
59
60 \list
61 \o QDBusReply accepts exactly one return type, whereas
62 QDBusPendingReply can have from 1 to 8 types
63 \o QDBusReply only works on already completed replies, whereas
64 QDBusPendingReply allows one to wait for replies from pending
65 calls
66 \endlist
67
68 Where with QDBusReply you would write:
69
70 \snippet doc/src/snippets/code/src_qdbus_qdbusreply.cpp 0
71
72 with QDBusPendingReply, the equivalent code (including the blocking
73 wait for the reply) would be:
74
75 \snippet doc/src/snippets/code/src.qdbus.qdbuspendingreply.cpp 0
76
77 For method calls that have more than one output argument, with
78 QDBusReply, you would write:
79
80 \snippet doc/src/snippets/code/src_qdbus_qdbusreply.cpp 1
81
82 whereas with QDBusPendingReply, all of the output arguments should
83 be template parameters:
84
85 \snippet doc/src/snippets/code/src.qdbus.qdbuspendingreply.cpp 2
86
87 QDBusPendingReply objects can be associated with
88 QDBusPendingCallWatcher objects, which emit signals when the reply
89 arrives.
90
91 \sa QDBusPendingCallWatcher, QDBusReply,
92 QDBusAbstractInterface::asyncCall()
93*/
94
95/*!