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<h1 class="title">complexpong.cpp Example File</h1>
<span class="small-subtitle">dbus/complexpingpong/complexpong.cpp</span>
<!-- $$$dbus/complexpingpong/complexpong.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp"> <span class="comment">/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** &quot;Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.&quot;
**
** $QT_END_LICENSE$
**
****************************************************************************/</span>
<span class="preprocessor">#include &lt;stdio.h&gt;</span>
<span class="preprocessor">#include &lt;stdlib.h&gt;</span>
<span class="preprocessor">#include &lt;QtCore/QCoreApplication&gt;</span>
<span class="preprocessor">#include &lt;QtCore/QTimer&gt;</span>
<span class="preprocessor">#include &lt;QtDBus/QtDBus&gt;</span>
<span class="preprocessor">#include &quot;ping-common.h&quot;</span>
<span class="preprocessor">#include &quot;complexpong.h&quot;</span>
<span class="comment">// the property</span>
<span class="type"><a href="qstring.html">QString</a></span> Pong<span class="operator">::</span>value() <span class="keyword">const</span>
{
<span class="keyword">return</span> m_value;
}
<span class="type">void</span> Pong<span class="operator">::</span>setValue(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&amp;</span>newValue)
{
m_value <span class="operator">=</span> newValue;
}
<span class="type">void</span> Pong<span class="operator">::</span>quit()
{
<span class="type"><a href="qtimer.html">QTimer</a></span><span class="operator">::</span>singleShot(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="qcoreapplication.html">QCoreApplication</a></span><span class="operator">::</span>instance()<span class="operator">,</span> SLOT(quit()));
}
<span class="type"><a href="qdbusvariant.html">QDBusVariant</a></span> Pong<span class="operator">::</span>query(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&amp;</span>query)
{
<span class="type"><a href="qstring.html">QString</a></span> q <span class="operator">=</span> query<span class="operator">.</span>toLower();
<span class="keyword">if</span> (q <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;hello&quot;</span>)
<span class="keyword">return</span> <span class="type"><a href="qdbusvariant.html">QDBusVariant</a></span>(<span class="string">&quot;World&quot;</span>);
<span class="keyword">if</span> (q <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;ping&quot;</span>)
<span class="keyword">return</span> <span class="type"><a href="qdbusvariant.html">QDBusVariant</a></span>(<span class="string">&quot;Pong&quot;</span>);
<span class="keyword">if</span> (q<span class="operator">.</span>indexOf(<span class="string">&quot;the answer to life, the universe and everything&quot;</span>) <span class="operator">!</span><span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>)
<span class="keyword">return</span> <span class="type"><a href="qdbusvariant.html">QDBusVariant</a></span>(<span class="number">42</span>);
<span class="keyword">if</span> (q<span class="operator">.</span>indexOf(<span class="string">&quot;unladen swallow&quot;</span>) <span class="operator">!</span><span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>) {
<span class="keyword">if</span> (q<span class="operator">.</span>indexOf(<span class="string">&quot;european&quot;</span>) <span class="operator">!</span><span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>)
<span class="keyword">return</span> <span class="type"><a href="qdbusvariant.html">QDBusVariant</a></span>(<span class="number">11.0</span>);
<span class="keyword">return</span> <span class="type"><a href="qdbusvariant.html">QDBusVariant</a></span>(<span class="type"><a href="qbytearray.html">QByteArray</a></span>(<span class="string">&quot;african or european?&quot;</span>));
}
<span class="keyword">return</span> <span class="type"><a href="qdbusvariant.html">QDBusVariant</a></span>(<span class="string">&quot;Sorry, I don't know the answer&quot;</span>);
}
<span class="type">int</span> main(<span class="type">int</span> argc<span class="operator">,</span> <span class="type">char</span> <span class="operator">*</span><span class="operator">*</span>argv)
{
<span class="type"><a href="qcoreapplication.html">QCoreApplication</a></span> app(argc<span class="operator">,</span> argv);
<span class="type"><a href="qobject.html">QObject</a></span> obj;
Pong <span class="operator">*</span>pong <span class="operator">=</span> <span class="keyword">new</span> Pong(<span class="operator">&amp;</span>obj);
pong<span class="operator">-</span><span class="operator">&gt;</span>connect(<span class="operator">&amp;</span>app<span class="operator">,</span> SIGNAL(aboutToQuit())<span class="operator">,</span> SIGNAL(aboutToQuit()));
pong<span class="operator">-</span><span class="operator">&gt;</span>setProperty(<span class="string">&quot;value&quot;</span><span class="operator">,</span> <span class="string">&quot;initial value&quot;</span>);
<span class="type"><a href="qdbusconnection.html">QDBusConnection</a></span><span class="operator">::</span>sessionBus()<span class="operator">.</span>registerObject(<span class="string">&quot;/&quot;</span><span class="operator">,</span> <span class="operator">&amp;</span>obj);
<span class="keyword">if</span> (<span class="operator">!</span><span class="type"><a href="qdbusconnection.html">QDBusConnection</a></span><span class="operator">::</span>sessionBus()<span class="operator">.</span>registerService(SERVICE_NAME)) {
fprintf(stderr<span class="operator">,</span> <span class="string">&quot;%s\n&quot;</span><span class="operator">,</span>
<a href="qtglobal.html#qPrintable">qPrintable</a>(<span class="type"><a href="qdbusconnection.html">QDBusConnection</a></span><span class="operator">::</span>sessionBus()<span class="operator">.</span>lastError()<span class="operator">.</span>message()));
exit(<span class="number">1</span>);
}
app<span class="operator">.</span>exec();
<span class="keyword">return</span> <span class="number">0</span>;
}</pre>
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<!-- @@@dbus/complexpingpong/complexpong.cpp -->
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