<?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>main.cpp Example File | Qt QML 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="qtqml-index.html">Qt QML</a></td><td ><a href="qtqml-networkaccessmanagerfactory-example.html">C++ Extensions: Network Access Manager Factory Example</a></td><td >main.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">main.cpp Example File</h1> <span class="subtitle">networkaccessmanagerfactory/main.cpp</span> <!-- $$$networkaccessmanagerfactory/main.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 demonstration applications 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 <QCommandLineParser></span> <span class="preprocessor">#include <QGuiApplication></span> <span class="preprocessor">#include <QNetworkAccessManager></span> <span class="preprocessor">#include <QNetworkProxy></span> <span class="preprocessor">#include <QQmlEngine></span> <span class="preprocessor">#include <QQmlNetworkAccessManagerFactory></span> <span class="preprocessor">#include <QtQuick/QQuickView></span> <span class="comment">/* This example illustrates using a QQmlNetworkAccessManagerFactory to create a QNetworkAccessManager with a proxy. Usage: networkaccessmanagerfactory [-host <proxy> -port <port>] [file] */</span> <span class="preprocessor">#if QT_CONFIG(networkproxy)</span> <span class="keyword">static</span> <span class="type">QString</span> proxyHost; <span class="keyword">static</span> <span class="type">int</span> proxyPort <span class="operator">=</span> <span class="number">0</span>; <span class="preprocessor">#endif // networkproxy</span> <span class="keyword">class</span> MyNetworkAccessManagerFactory : <span class="keyword">public</span> <span class="type"><a href="qqmlnetworkaccessmanagerfactory.html">QQmlNetworkAccessManagerFactory</a></span> { <span class="keyword">public</span>: <span class="keyword">virtual</span> <span class="type">QNetworkAccessManager</span> <span class="operator">*</span>create(<span class="type">QObject</span> <span class="operator">*</span>parent); }; <span class="type">QNetworkAccessManager</span> <span class="operator">*</span>MyNetworkAccessManagerFactory<span class="operator">::</span>create(<span class="type">QObject</span> <span class="operator">*</span>parent) { <span class="type">QNetworkAccessManager</span> <span class="operator">*</span>nam <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QNetworkAccessManager</span>(parent); <span class="preprocessor">#if QT_CONFIG(networkproxy)</span> <span class="keyword">if</span> (<span class="operator">!</span>proxyHost<span class="operator">.</span>isEmpty()) { qDebug() <span class="operator"><</span><span class="operator"><</span> <span class="string">"Created QNetworkAccessManager using proxy"</span> <span class="operator"><</span><span class="operator"><</span> (proxyHost <span class="operator">+</span> <span class="string">":"</span> <span class="operator">+</span> <span class="type">QString</span><span class="operator">::</span>number(proxyPort)); <span class="type">QNetworkProxy</span> proxy(<span class="type">QNetworkProxy</span><span class="operator">::</span>HttpCachingProxy<span class="operator">,</span> proxyHost<span class="operator">,</span> proxyPort); nam<span class="operator">-</span><span class="operator">></span>setProxy(proxy); } <span class="preprocessor">#endif // networkproxy</span> <span class="keyword">return</span> nam; } <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">QUrl</span> source(<span class="string">"qrc:view.qml"</span>); <span class="type">QGuiApplication</span> app(argc<span class="operator">,</span> argv); <span class="type">QCommandLineParser</span> parser; <span class="preprocessor">#if QT_CONFIG(networkproxy)</span> <span class="type">QCommandLineOption</span> proxyHostOption(<span class="string">"host"</span><span class="operator">,</span> <span class="string">"The proxy host to use."</span><span class="operator">,</span> <span class="string">"host"</span>); parser<span class="operator">.</span>addOption(proxyHostOption); <span class="type">QCommandLineOption</span> proxyPortOption(<span class="string">"port"</span><span class="operator">,</span> <span class="string">"The proxy port to use."</span><span class="operator">,</span> <span class="string">"port"</span><span class="operator">,</span> <span class="string">"0"</span>); parser<span class="operator">.</span>addOption(proxyPortOption); <span class="preprocessor">#endif // networkproxy</span> parser<span class="operator">.</span>addPositionalArgument(<span class="string">"file"</span><span class="operator">,</span> <span class="string">"The file to use."</span>); <span class="type">QCommandLineOption</span> helpOption <span class="operator">=</span> parser<span class="operator">.</span>addHelpOption(); parser<span class="operator">.</span>setSingleDashWordOptionMode(<span class="type">QCommandLineParser</span><span class="operator">::</span>ParseAsLongOptions); <span class="type">QStringList</span> arguments <span class="operator">=</span> <span class="type">QCoreApplication</span><span class="operator">::</span>arguments(); <span class="keyword">if</span> (<span class="operator">!</span>parser<span class="operator">.</span>parse(arguments)) { qWarning() <span class="operator"><</span><span class="operator"><</span> parser<span class="operator">.</span>helpText() <span class="operator"><</span><span class="operator"><</span> <span class="char">'\n'</span> <span class="operator"><</span><span class="operator"><</span> parser<span class="operator">.</span>errorText(); exit(<span class="number">1</span>); } <span class="keyword">if</span> (parser<span class="operator">.</span>isSet(helpOption)) { qWarning() <span class="operator"><</span><span class="operator"><</span> parser<span class="operator">.</span>helpText(); exit(<span class="number">0</span>); } <span class="preprocessor">#if QT_CONFIG(networkproxy)</span> <span class="keyword">if</span> (parser<span class="operator">.</span>isSet(proxyHostOption)) proxyHost <span class="operator">=</span> parser<span class="operator">.</span>value(proxyHostOption); <span class="keyword">if</span> (parser<span class="operator">.</span>isSet(proxyPortOption)) { bool ok <span class="operator">=</span> <span class="keyword">true</span>; proxyPort <span class="operator">=</span> parser<span class="operator">.</span>value(proxyPortOption)<span class="operator">.</span>toInt(<span class="operator">&</span>ok); <span class="keyword">if</span> (<span class="operator">!</span>ok <span class="operator">|</span><span class="operator">|</span> proxyPort <span class="operator"><</span> <span class="number">1</span> <span class="operator">|</span><span class="operator">|</span> proxyPort <span class="operator">></span> <span class="number">65535</span>) { qWarning() <span class="operator"><</span><span class="operator"><</span> parser<span class="operator">.</span>helpText() <span class="operator"><</span><span class="operator"><</span> <span class="string">"\nNo valid port given. It should\ be a number between 1 and 65535"</span>; exit(<span class="number">1</span>); } } <span class="preprocessor">#endif // networkproxy</span> <span class="keyword">if</span> (parser<span class="operator">.</span>positionalArguments()<span class="operator">.</span>count() <span class="operator">=</span><span class="operator">=</span> <span class="number">1</span>) source <span class="operator">=</span> <span class="type">QUrl</span><span class="operator">::</span>fromLocalFile(parser<span class="operator">.</span>positionalArguments()<span class="operator">.</span>first()); <span class="type">QQuickView</span> view; view<span class="operator">.</span>engine()<span class="operator">-</span><span class="operator">></span>setNetworkAccessManagerFactory(<span class="keyword">new</span> MyNetworkAccessManagerFactory); view<span class="operator">.</span>setSource(source); view<span class="operator">.</span>show(); <span class="keyword">return</span> app<span class="operator">.</span>exec(); } </pre> </div> <!-- @@@networkaccessmanagerfactory/main.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>