<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- echoserver.qdoc --> <title>Echo Server Example | Qt WebSockets 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="qtwebsockets-index.html">Qt WebSockets</a></td><td ><a href="qtwebsockets-examples.html">Qt WebSockets Examples</a></td><td >Echo Server Example</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtwebsockets-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">Echo Server Example</h1> <span class="subtitle"></span> <!-- $$$echoserver-brief --> <p>Shows how to create a simple server application that sends back the messages it receives.</p> <!-- @@@echoserver --> <!-- $$$echoserver-description --> <div class="descr"> <a name="details"></a> <p>The Echo Server Example shows how to create a simple server application that sends back the messages it receives, using the <a href="qtwebsockets-index.html">WebSocket</a> API.</p> <p>If your web browser supports <a href="qtwebsockets-index.html">WebSocket</a>, you can also use it to open the <a href="qtwebsockets-echoserver-echoclient-html.html">echoclient.html</a> file, and operate like the following screenshot.</p> <p class="centerAlign"><img src="images/echoclient-html-example.png" alt="Screenshot of the HTML version of Echo" /></p><p>Client example</p> <p>Files:</p> <ul> <li><a href="qtwebsockets-echoserver-echoclient-html.html">echoserver/echoclient.html</a></li> <li><a href="qtwebsockets-echoserver-echoserver-cpp.html">echoserver/echoserver.cpp</a></li> <li><a href="qtwebsockets-echoserver-echoserver-h.html">echoserver/echoserver.h</a></li> <li><a href="qtwebsockets-echoserver-echoserver-pro.html">echoserver/echoserver.pro</a></li> <li><a href="qtwebsockets-echoserver-main-cpp.html">echoserver/main.cpp</a></li> </ul> </div> <p><b>See also </b><a href="qtwebsockets-echoclient-example.html">Echo Client Example</a>.</p> <!-- @@@echoserver --> </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>