<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- hellovulkanwidget.qdoc --> <title>Hello Vulkan Widget Example | Qt GUI 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="qtgui-index.html">Qt GUI</a></td><td >Hello Vulkan Widget Example</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtgui-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="toc"> <h3><a name="toc">Contents</a></h3> <ul> <li class="level1"><a href="#running-the-example">Running the Example</a></li> </ul> </div> <div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">Hello Vulkan Widget Example</h1> <span class="subtitle"></span> <!-- $$$hellovulkanwidget-brief --> <p>Shows the usage of <a href="qvulkanwindow.html">QVulkanWindow</a> in <a href="../qtwidgets/qwidget.html">QWidget</a> applications.</p> <!-- @@@hellovulkanwidget --> <!-- $$$hellovulkanwidget-description --> <div class="descr"> <a name="details"></a> <p>The <i>Hello Vulkan Widget Example</i> is a variant of <a href="qtgui-hellovulkantriangle-example.html">hellovulkantriangle</a> that embeds the <a href="qvulkanwindow.html">QVulkanWindow</a> into a <a href="../qtwidgets/qwidget.html">QWidget</a>-based user interface using <a href="../qtwidgets/qwidget.html#createWindowContainer">QWidget::createWindowContainer</a>().</p> <p class="centerAlign"><img src="images/hellovulkanwidget.png" alt="" /></p><p>The code to set up the Vulkan pipeline and render the triangle is the same as in <a href="qtgui-hellovulkantriangle-example.html">hellovulkantriangle</a>. In addition, this example demonstrates another feature of <a href="qvulkanwindow.html">QVulkanWindow</a>: reading the image content back from the color buffer into a <a href="qimage.html">QImage</a>. By clicking the Grab button, the example renders the next frame and follows it up with a transfer operation in order to get the swapchain color buffer content copied into host accessible memory. The image is then saved to disk via <a href="qimage.html#save">QImage::save</a>().</p> <a name="running-the-example"></a> <h2 id="running-the-example">Running the Example</h2> <p>To run the example from Qt Creator, open the <b>Welcome</b> mode and select the example from <b>Examples</b>. For more information, visit Building and Running an Example.</p> <p>Files:</p> <ul> <li><a href="qtgui-hellovulkanwidget-hellovulkanwidget-cpp.html">hellovulkanwidget/hellovulkanwidget.cpp</a></li> <li><a href="qtgui-hellovulkanwidget-hellovulkanwidget-h.html">hellovulkanwidget/hellovulkanwidget.h</a></li> <li><a href="qtgui-hellovulkanwidget-hellovulkanwidget-pro.html">hellovulkanwidget/hellovulkanwidget.pro</a></li> <li><a href="qtgui-hellovulkanwidget-hellovulkanwidget-qrc.html">hellovulkanwidget/hellovulkanwidget.qrc</a></li> <li><a href="qtgui-hellovulkanwidget-main-cpp.html">hellovulkanwidget/main.cpp</a></li> </ul> </div> <!-- @@@hellovulkanwidget --> </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>