<?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 5.12.6</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 5.12</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"><a href="qtnetwork-index.html">Qt 5.12.6 Reference Documentation</a></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) 2017 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>)) { 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="keyword">auto</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="keyword">auto</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="keyword">auto</span> quitButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QPushButton</span>(tr(<span class="string">"Quit"</span>)); <span class="keyword">auto</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> 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="keyword">auto</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="keyword">auto</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="keyword">auto</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> 2019 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>