<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>client.cpp Example File | Qt Network 5.9</title>
<link rel="stylesheet" type="text/css" href="style/offline-simple.css" />
<script type="text/javascript">
document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css");
// loading style sheet breaks anchors that were jumped to before
// so force jumping to anchor again
setTimeout(function() {
var anchor = location.hash;
// need to jump to different anchor first (e.g. none)
location.hash = "#";
setTimeout(function() {
location.hash = anchor;
}, 0);
}, 0);
</script>
</head>
<body>
<div class="header" id="qtdocheader">
<div class="main">
<div class="main-rounded">
<div class="navigationbar">
<table><tr>
<td >Qt 5.9</td><td ><a href="qtnetwork-index.html">Qt Network</a></td><td ><a href="qtnetwork-fortuneclient-example.html">Fortune Client Example</a></td><td >client.cpp Example File</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</td>
</tr></table>
</div>
</div>
<div class="content">
<div class="line">
<div class="content mainContent">
<div class="sidebar"><div class="sidebar-content" id="sidebar-content"></div></div>
<h1 class="title">client.cpp Example File</h1>
<span class="subtitle">fortuneclient/client.cpp</span>
<!-- $$$fortuneclient/client.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp">
<span class="comment">/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "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
** "AS IS" 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."
**
** $QT_END_LICENSE$
**
****************************************************************************/</span>
<span class="preprocessor">#include <QtWidgets></span>
<span class="preprocessor">#include <QtNetwork></span>
<span class="preprocessor">#include "client.h"</span>
Client<span class="operator">::</span>Client(<span class="type">QWidget</span> <span class="operator">*</span>parent)
: <span class="type">QDialog</span>(parent)
<span class="operator">,</span> hostCombo(<span class="keyword">new</span> <span class="type">QComboBox</span>)
<span class="operator">,</span> portLineEdit(<span class="keyword">new</span> <span class="type">QLineEdit</span>)
<span class="operator">,</span> getFortuneButton(<span class="keyword">new</span> <span class="type">QPushButton</span>(tr(<span class="string">"Get Fortune"</span>)))
<span class="operator">,</span> tcpSocket(<span class="keyword">new</span> <span class="type"><a href="qtcpsocket.html">QTcpSocket</a></span>(<span class="keyword">this</span>))
<span class="operator">,</span> networkSession(Q_NULLPTR)
{
setWindowFlags(windowFlags() <span class="operator">&</span> <span class="operator">~</span><span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>WindowContextHelpButtonHint);
hostCombo<span class="operator">-</span><span class="operator">></span>setEditable(<span class="keyword">true</span>);
<span class="comment">// find out name of this machine</span>
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> name <span class="operator">=</span> <span class="type"><a href="qhostinfo.html">QHostInfo</a></span><span class="operator">::</span>localHostName();
<span class="keyword">if</span> (<span class="operator">!</span>name<span class="operator">.</span>isEmpty()) {
hostCombo<span class="operator">-</span><span class="operator">></span>addItem(name);
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> domain <span class="operator">=</span> <span class="type"><a href="qhostinfo.html">QHostInfo</a></span><span class="operator">::</span>localDomainName();
<span class="keyword">if</span> (<span class="operator">!</span>domain<span class="operator">.</span>isEmpty())
hostCombo<span class="operator">-</span><span class="operator">></span>addItem(name <span class="operator">+</span> <span class="type"><a href="../qtcore/qchar.html">QChar</a></span>(<span class="char">'.'</span>) <span class="operator">+</span> domain);
}
<span class="keyword">if</span> (name <span class="operator">!</span><span class="operator">=</span> QLatin1String(<span class="string">"localhost"</span>))
hostCombo<span class="operator">-</span><span class="operator">></span>addItem(<span class="type"><a href="../qtcore/qstring.html">QString</a></span>(<span class="string">"localhost"</span>));
<span class="comment">// find out IP addresses of this machine</span>
<span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator"><</span><span class="type"><a href="qhostaddress.html">QHostAddress</a></span><span class="operator">></span> ipAddressesList <span class="operator">=</span> <span class="type"><a href="qnetworkinterface.html">QNetworkInterface</a></span><span class="operator">::</span>allAddresses();
<span class="comment">// add non-localhost addresses</span>
<span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> ipAddressesList<span class="operator">.</span>size(); <span class="operator">+</span><span class="operator">+</span>i) {
<span class="keyword">if</span> (<span class="operator">!</span>ipAddressesList<span class="operator">.</span>at(i)<span class="operator">.</span>isLoopback())
hostCombo<span class="operator">-</span><span class="operator">></span>addItem(ipAddressesList<span class="operator">.</span>at(i)<span class="operator">.</span>toString());
}
<span class="comment">// add localhost addresses</span>
<span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> ipAddressesList<span class="operator">.</span>size(); <span class="operator">+</span><span class="operator">+</span>i) {
<span class="keyword">if</span> (ipAddressesList<span class="operator">.</span>at(i)<span class="operator">.</span>isLoopback())
hostCombo<span class="operator">-</span><span class="operator">></span>addItem(ipAddressesList<span class="operator">.</span>at(i)<span class="operator">.</span>toString());
}
portLineEdit<span class="operator">-</span><span class="operator">></span>setValidator(<span class="keyword">new</span> <span class="type"><a href="../qtgui/qintvalidator.html">QIntValidator</a></span>(<span class="number">1</span><span class="operator">,</span> <span class="number">65535</span><span class="operator">,</span> <span class="keyword">this</span>));
<span class="type">QLabel</span> <span class="operator">*</span>hostLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QLabel</span>(tr(<span class="string">"&Server name:"</span>));
hostLabel<span class="operator">-</span><span class="operator">></span>setBuddy(hostCombo);
<span class="type">QLabel</span> <span class="operator">*</span>portLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QLabel</span>(tr(<span class="string">"S&erver port:"</span>));
portLabel<span class="operator">-</span><span class="operator">></span>setBuddy(portLineEdit);
statusLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QLabel</span>(tr(<span class="string">"This examples requires that you run the "</span>
<span class="string">"Fortune Server example as well."</span>));
getFortuneButton<span class="operator">-</span><span class="operator">></span>setDefault(<span class="keyword">true</span>);
getFortuneButton<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">false</span>);
<span class="type">QPushButton</span> <span class="operator">*</span>quitButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QPushButton</span>(tr(<span class="string">"Quit"</span>));
<span class="type">QDialogButtonBox</span> <span class="operator">*</span>buttonBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QDialogButtonBox</span>;
buttonBox<span class="operator">-</span><span class="operator">></span>addButton(getFortuneButton<span class="operator">,</span> <span class="type">QDialogButtonBox</span><span class="operator">::</span>ActionRole);
buttonBox<span class="operator">-</span><span class="operator">></span>addButton(quitButton<span class="operator">,</span> <span class="type">QDialogButtonBox</span><span class="operator">::</span>RejectRole);
in<span class="operator">.</span>setDevice(tcpSocket);
in<span class="operator">.</span>setVersion(<span class="type"><a href="../qtcore/qdatastream.html">QDataStream</a></span><span class="operator">::</span>Qt_4_0);
connect(hostCombo<span class="operator">,</span> <span class="operator">&</span><span class="type">QComboBox</span><span class="operator">::</span>editTextChanged<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Client<span class="operator">::</span>enableGetFortuneButton);
connect(portLineEdit<span class="operator">,</span> <span class="operator">&</span><span class="type">QLineEdit</span><span class="operator">::</span>textChanged<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Client<span class="operator">::</span>enableGetFortuneButton);
connect(getFortuneButton<span class="operator">,</span> <span class="operator">&</span><span class="type">QAbstractButton</span><span class="operator">::</span>clicked<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Client<span class="operator">::</span>requestNewFortune);
connect(quitButton<span class="operator">,</span> <span class="operator">&</span><span class="type">QAbstractButton</span><span class="operator">::</span>clicked<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span><span class="type">QWidget</span><span class="operator">::</span>close);
connect(tcpSocket<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="../qtcore/qiodevice.html">QIODevice</a></span><span class="operator">::</span>readyRead<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Client<span class="operator">::</span>readFortune);
connect(tcpSocket<span class="operator">,</span> <span class="type">QOverload</span><span class="operator"><</span><span class="type"><a href="qabstractsocket.html">QAbstractSocket</a></span><span class="operator">::</span>SocketError<span class="operator">></span><span class="operator">::</span>of(<span class="operator">&</span><span class="type"><a href="qabstractsocket.html">QAbstractSocket</a></span><span class="operator">::</span>error)<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Client<span class="operator">::</span>displayError);
<span class="type">QGridLayout</span> <span class="operator">*</span>mainLayout <span class="operator">=</span> Q_NULLPTR;
<span class="keyword">if</span> (<span class="type"><a href="../qtgui/qguiapplication.html">QGuiApplication</a></span><span class="operator">::</span>styleHints()<span class="operator">-</span><span class="operator">></span>showIsFullScreen() <span class="operator">|</span><span class="operator">|</span> <span class="type"><a href="../qtgui/qguiapplication.html">QGuiApplication</a></span><span class="operator">::</span>styleHints()<span class="operator">-</span><span class="operator">></span>showIsMaximized()) {
<span class="type">QVBoxLayout</span> <span class="operator">*</span>outerVerticalLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QVBoxLayout</span>(<span class="keyword">this</span>);
outerVerticalLayout<span class="operator">-</span><span class="operator">></span>addItem(<span class="keyword">new</span> <span class="type">QSpacerItem</span>(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="type">QSizePolicy</span><span class="operator">::</span>Ignored<span class="operator">,</span> <span class="type">QSizePolicy</span><span class="operator">::</span>MinimumExpanding));
<span class="type">QHBoxLayout</span> <span class="operator">*</span>outerHorizontalLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QHBoxLayout</span>;
outerHorizontalLayout<span class="operator">-</span><span class="operator">></span>addItem(<span class="keyword">new</span> <span class="type">QSpacerItem</span>(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="type">QSizePolicy</span><span class="operator">::</span>MinimumExpanding<span class="operator">,</span> <span class="type">QSizePolicy</span><span class="operator">::</span>Ignored));
<span class="type">QGroupBox</span> <span class="operator">*</span>groupBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QGroupBox</span>(<span class="type"><a href="../qtgui/qguiapplication.html">QGuiApplication</a></span><span class="operator">::</span>applicationDisplayName());
mainLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QGridLayout</span>(groupBox);
outerHorizontalLayout<span class="operator">-</span><span class="operator">></span>addWidget(groupBox);
outerHorizontalLayout<span class="operator">-</span><span class="operator">></span>addItem(<span class="keyword">new</span> <span class="type">QSpacerItem</span>(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="type">QSizePolicy</span><span class="operator">::</span>MinimumExpanding<span class="operator">,</span> <span class="type">QSizePolicy</span><span class="operator">::</span>Ignored));
outerVerticalLayout<span class="operator">-</span><span class="operator">></span>addLayout(outerHorizontalLayout);
outerVerticalLayout<span class="operator">-</span><span class="operator">></span>addItem(<span class="keyword">new</span> <span class="type">QSpacerItem</span>(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="type">QSizePolicy</span><span class="operator">::</span>Ignored<span class="operator">,</span> <span class="type">QSizePolicy</span><span class="operator">::</span>MinimumExpanding));
} <span class="keyword">else</span> {
mainLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QGridLayout</span>(<span class="keyword">this</span>);
}
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(hostLabel<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span>);
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(hostCombo<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span>);
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(portLabel<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">0</span>);
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(portLineEdit<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span>);
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(statusLabel<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">2</span>);
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(buttonBox<span class="operator">,</span> <span class="number">3</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">2</span>);
setWindowTitle(<span class="type"><a href="../qtgui/qguiapplication.html">QGuiApplication</a></span><span class="operator">::</span>applicationDisplayName());
portLineEdit<span class="operator">-</span><span class="operator">></span>setFocus();
<span class="type"><a href="qnetworkconfigurationmanager.html">QNetworkConfigurationManager</a></span> manager;
<span class="keyword">if</span> (manager<span class="operator">.</span>capabilities() <span class="operator">&</span> <span class="type"><a href="qnetworkconfigurationmanager.html">QNetworkConfigurationManager</a></span><span class="operator">::</span>NetworkSessionRequired) {
<span class="comment">// Get saved network configuration</span>
<span class="type"><a href="../qtcore/qsettings.html">QSettings</a></span> settings(<span class="type"><a href="../qtcore/qsettings.html">QSettings</a></span><span class="operator">::</span>UserScope<span class="operator">,</span> QLatin1String(<span class="string">"QtProject"</span>));
settings<span class="operator">.</span>beginGroup(QLatin1String(<span class="string">"QtNetwork"</span>));
<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> id <span class="operator">=</span> settings<span class="operator">.</span>value(QLatin1String(<span class="string">"DefaultNetworkConfiguration"</span>))<span class="operator">.</span>toString();
settings<span class="operator">.</span>endGroup();
<span class="comment">// If the saved network configuration is not currently discovered use the system default</span>
<span class="type"><a href="qnetworkconfiguration.html">QNetworkConfiguration</a></span> config <span class="operator">=</span> manager<span class="operator">.</span>configurationFromIdentifier(id);
<span class="keyword">if</span> ((config<span class="operator">.</span>state() <span class="operator">&</span> <span class="type"><a href="qnetworkconfiguration.html">QNetworkConfiguration</a></span><span class="operator">::</span>Discovered) <span class="operator">!</span><span class="operator">=</span>
<span class="type"><a href="qnetworkconfiguration.html">QNetworkConfiguration</a></span><span class="operator">::</span>Discovered) {
config <span class="operator">=</span> manager<span class="operator">.</span>defaultConfiguration();
}
networkSession <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qnetworksession.html">QNetworkSession</a></span>(config<span class="operator">,</span> <span class="keyword">this</span>);
connect(networkSession<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qnetworksession.html">QNetworkSession</a></span><span class="operator">::</span>opened<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Client<span class="operator">::</span>sessionOpened);
getFortuneButton<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">false</span>);
statusLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Opening network session."</span>));
networkSession<span class="operator">-</span><span class="operator">></span>open();
}
}
<span class="type">void</span> Client<span class="operator">::</span>requestNewFortune()
{
getFortuneButton<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">false</span>);
tcpSocket<span class="operator">-</span><span class="operator">></span>abort();
tcpSocket<span class="operator">-</span><span class="operator">></span>connectToHost(hostCombo<span class="operator">-</span><span class="operator">></span>currentText()<span class="operator">,</span>
portLineEdit<span class="operator">-</span><span class="operator">></span>text()<span class="operator">.</span>toInt());
}
<span class="type">void</span> Client<span class="operator">::</span>readFortune()
{
in<span class="operator">.</span>startTransaction();
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> nextFortune;
in <span class="operator">></span><span class="operator">></span> nextFortune;
<span class="keyword">if</span> (<span class="operator">!</span>in<span class="operator">.</span>commitTransaction())
<span class="keyword">return</span>;
<span class="keyword">if</span> (nextFortune <span class="operator">=</span><span class="operator">=</span> currentFortune) {
<span class="type"><a href="../qtcore/qtimer.html">QTimer</a></span><span class="operator">::</span>singleShot(<span class="number">0</span><span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Client<span class="operator">::</span>requestNewFortune);
<span class="keyword">return</span>;
}
currentFortune <span class="operator">=</span> nextFortune;
statusLabel<span class="operator">-</span><span class="operator">></span>setText(currentFortune);
getFortuneButton<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">true</span>);
}
<span class="type">void</span> Client<span class="operator">::</span>displayError(<span class="type"><a href="qabstractsocket.html">QAbstractSocket</a></span><span class="operator">::</span>SocketError socketError)
{
<span class="keyword">switch</span> (socketError) {
<span class="keyword">case</span> <span class="type"><a href="qabstractsocket.html">QAbstractSocket</a></span><span class="operator">::</span>RemoteHostClosedError:
<span class="keyword">break</span>;
<span class="keyword">case</span> <span class="type"><a href="qabstractsocket.html">QAbstractSocket</a></span><span class="operator">::</span>HostNotFoundError:
<span class="type">QMessageBox</span><span class="operator">::</span>information(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"Fortune Client"</span>)<span class="operator">,</span>
tr(<span class="string">"The host was not found. Please check the "</span>
<span class="string">"host name and port settings."</span>));
<span class="keyword">break</span>;
<span class="keyword">case</span> <span class="type"><a href="qabstractsocket.html">QAbstractSocket</a></span><span class="operator">::</span>ConnectionRefusedError:
<span class="type">QMessageBox</span><span class="operator">::</span>information(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"Fortune Client"</span>)<span class="operator">,</span>
tr(<span class="string">"The connection was refused by the peer. "</span>
<span class="string">"Make sure the fortune server is running, "</span>
<span class="string">"and check that the host name and port "</span>
<span class="string">"settings are correct."</span>));
<span class="keyword">break</span>;
<span class="keyword">default</span>:
<span class="type">QMessageBox</span><span class="operator">::</span>information(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"Fortune Client"</span>)<span class="operator">,</span>
tr(<span class="string">"The following error occurred: %1."</span>)
<span class="operator">.</span>arg(tcpSocket<span class="operator">-</span><span class="operator">></span>errorString()));
}
getFortuneButton<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">true</span>);
}
<span class="type">void</span> Client<span class="operator">::</span>enableGetFortuneButton()
{
getFortuneButton<span class="operator">-</span><span class="operator">></span>setEnabled((<span class="operator">!</span>networkSession <span class="operator">|</span><span class="operator">|</span> networkSession<span class="operator">-</span><span class="operator">></span>isOpen()) <span class="operator">&</span><span class="operator">&</span>
<span class="operator">!</span>hostCombo<span class="operator">-</span><span class="operator">></span>currentText()<span class="operator">.</span>isEmpty() <span class="operator">&</span><span class="operator">&</span>
<span class="operator">!</span>portLineEdit<span class="operator">-</span><span class="operator">></span>text()<span class="operator">.</span>isEmpty());
}
<span class="type">void</span> Client<span class="operator">::</span>sessionOpened()
{
<span class="comment">// Save the used configuration</span>
<span class="type"><a href="qnetworkconfiguration.html">QNetworkConfiguration</a></span> config <span class="operator">=</span> networkSession<span class="operator">-</span><span class="operator">></span>configuration();
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> id;
<span class="keyword">if</span> (config<span class="operator">.</span>type() <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qnetworkconfiguration.html">QNetworkConfiguration</a></span><span class="operator">::</span>UserChoice)
id <span class="operator">=</span> networkSession<span class="operator">-</span><span class="operator">></span>sessionProperty(QLatin1String(<span class="string">"UserChoiceConfiguration"</span>))<span class="operator">.</span>toString();
<span class="keyword">else</span>
id <span class="operator">=</span> config<span class="operator">.</span>identifier();
<span class="type"><a href="../qtcore/qsettings.html">QSettings</a></span> settings(<span class="type"><a href="../qtcore/qsettings.html">QSettings</a></span><span class="operator">::</span>UserScope<span class="operator">,</span> QLatin1String(<span class="string">"QtProject"</span>));
settings<span class="operator">.</span>beginGroup(QLatin1String(<span class="string">"QtNetwork"</span>));
settings<span class="operator">.</span>setValue(QLatin1String(<span class="string">"DefaultNetworkConfiguration"</span>)<span class="operator">,</span> id);
settings<span class="operator">.</span>endGroup();
statusLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"This examples requires that you run the "</span>
<span class="string">"Fortune Server example as well."</span>));
enableGetFortuneButton();
}
</pre>
</div>
<!-- @@@fortuneclient/client.cpp -->
</div>
</div>
</div>
</div>
</div>
<div class="footer">
<p>
<acronym title="Copyright">©</acronym> 2017 The Qt Company Ltd.
Documentation contributions included herein are the copyrights of
their respective owners.<br> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property
of their respective owners. </p>
</div>
</body>
</html>
distrib
>
Mageia
>
6
>
armv5tl
>
media
>
core-updates
>
by-pkgid
>
768f7d9f703884aa2562bf0a651086df
>
files
>
1900
