<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- examples.qdoc --> <title>Threading and Concurrent Programming Examples | Qt 5.11</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 ><a href="index.html">Qt 5.11</a></td><td ><a href="qtexamplesandtutorials.html#all-examples">List of Qt Examples</a></td><td >Threading and Concurrent Programming Examples</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right">Qt 5.11.2 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">Threading and Concurrent Programming Examples</h1> <span class="subtitle"></span> <!-- $$$examples-threadandconcurrent.html-description --> <div class="descr"> <a name="details"></a> <p class="centerAlign"><img src="images/thread-examples.png" alt="" /></p><p>Qt makes it easy to write multithreaded applications. Signals and slots can be used to safely communicate between threads in your application.</p> <div class="table"><table class="annotated"> <tr class="odd topAlign"><td class="tblName"><p><a href="../qtcore/qtcore-threads-mandelbrot-example.html">Mandelbrot Example</a></p></td><td class="tblDescr"><p>Mandelbrot example demonstrates multi-thread programming using Qt. It shows how to use a worker thread to perform heavy computations without blocking the main thread's event loop</p></td></tr> <tr class="even topAlign"><td class="tblName"><p><a href="../qtcore/qtcore-threads-queuedcustomtype-example.html">Queued Custom Type Example</a></p></td><td class="tblDescr"><p>Demonstrates multi-thread programming using Qt</p></td></tr> <tr class="odd topAlign"><td class="tblName"><p><a href="../qtcore/qtcore-threads-semaphores-example.html">Semaphores Example</a></p></td><td class="tblDescr"><p>Demonstrates multi-thread programming using Qt</p></td></tr> <tr class="even topAlign"><td class="tblName"><p><a href="../qtcore/qtcore-threads-waitconditions-example.html">Wait Conditions Example</a></p></td><td class="tblDescr"><p>Demonstrates multi-thread programming using Qt</p></td></tr> </table></div> <p>The <a href="../qtconcurrent/qtconcurrent.html">QtConcurrent</a> namespace includes a collection of classes and functions for straightforward concurrent programming.</p> <p>These examples show how to apply the basic techniques of concurrent programming to simple problems.</p> <div class="table"><table class="annotated"> <tr class="odd topAlign"><td class="tblName"><p><a href="../qtconcurrent/qtconcurrent-imagescaling-example.html">Image Scaling Example</a></p></td><td class="tblDescr"><p>Demonstrates how to asynchronously scale images</p></td></tr> <tr class="even topAlign"><td class="tblName"><p><a href="../qtconcurrent/qtconcurrent-map-example.html">Map Example</a></p></td><td class="tblDescr"><p>Demonstrates how to scale images synchronously</p></td></tr> <tr class="odd topAlign"><td class="tblName"><p><a href="../qtconcurrent/qtconcurrent-progressdialog-example.html">QtConcurrent Progress Dialog Example</a></p></td><td class="tblDescr"><p>Demonstrates how to monitor the progress of the active processes</p></td></tr> <tr class="even topAlign"><td class="tblName"><p><a href="../qtconcurrent/qtconcurrent-wordcount-example.html">QtConcurrent Word Count Example</a></p></td><td class="tblDescr"><p>Demonstrates how to use the map-reduce algorithm</p></td></tr> <tr class="odd topAlign"><td class="tblName"><p><a href="../qtconcurrent/qtconcurrent-runfunction-example.html">Run Function Example</a></p></td><td class="tblDescr"><p>Demonstrates how to run standard functions concurrently</p></td></tr> </table></div> <p>Examples marked with an asterisk (*) are fully documented.</p> </div> <!-- @@@examples-threadandconcurrent.html --> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2018 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>