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qtwebengine5-doc-5.9.4-1.mga6.noarch.rpm

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<td >Qt 5.9</td><td ><a href="qtwebengine-index.html">Qt WebEngine</a></td><td ><a href="webengine-widgetexamples.html">Qt WebEngine Widgets Examples</a></td><td >WebEngine Widgets Minimal Example</td></tr></table><table class="buildversion"><tr>
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<h3><a name="toc">Contents</a></h3>
<ul>
<li class="level1"><a href="#running-the-example">Running the Example</a></li>
<li class="level1"><a href="#the-code">The Code</a></li>
<li class="level1"><a href="#requirements">Requirements</a></li>
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<h1 class="title">WebEngine Widgets Minimal Example</h1>
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<div class="descr"> <a name="details"></a>
<p class="centerAlign"><img src="images/minimal-example.png" alt="" /></p><p><i>WebEngine Widgets Minimal Example</i> demonstrates how to use <a href="qwebengineview.html">QWebEngineView</a> to render a web page. It shows the minimum amount of code needed to load and display an HTML page, and can be used as a basis for further experimentation.</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>
<a name="the-code"></a>
<h2 id="the-code">The Code</h2>
<p>In the <code>main</code> function we first set the Qt::AA_EnableHighDpiScaling. This lets the web view automatically scale on high-dpi displays.</p>
<p>Next, we instantiate a QApplication and a <a href="qwebengineview.html">QWebEngineView</a>. The URL to load is set by calling <a href="qwebengineview.html#url-prop">QWebEngineView::setUrl</a>. The view widget is given a reasonable default size, and shown. Finally, QApplication::exec() launches the main event loop.</p>
<pre class="qml">

  <span class="preprocessor">#include &lt;QApplication&gt;</span>
  <span class="preprocessor">#include &lt;QWebEngineView&gt;</span>

  <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>argv<span class="operator">[</span><span class="operator">]</span>)
  {
      <span class="type">QCoreApplication</span><span class="operator">::</span>setAttribute(<span class="type">Qt</span><span class="operator">::</span>AA_EnableHighDpiScaling);
      <span class="type">QApplication</span> app(argc<span class="operator">,</span> argv);

      <span class="type"><a href="qwebengineview.html">QWebEngineView</a></span> view;
      view<span class="operator">.</span>setUrl(<span class="type">QUrl</span>(<span class="type">QStringLiteral</span>(<span class="string">&quot;http://www.qt.io&quot;</span>)));
      view<span class="operator">.</span>resize(<span class="number">1024</span><span class="operator">,</span> <span class="number">750</span>);
      view<span class="operator">.</span>show();

      <span class="keyword">return</span> app<span class="operator">.</span>exec();
  }

</pre>
<a name="requirements"></a>
<h2 id="requirements">Requirements</h2>
<p>The example requires a working internet connection to render the Qt Homepage. An optional system proxy should be picked up automatically. However, for proxies that require a username or password, you need to connect to <a href="qwebenginepage.html#proxyAuthenticationRequired">QWebEnginePage::proxyAuthenticationRequired</a>.</p>
<p><a href="qtwebenginewidgets-index.html">Qt WebEngine Widgets</a> uses the Qt Quick Scene Graph to compose the page. Therefore, OpenGL support is required.</p>
<p>Files:</p>
<ul>
<li><a href="qtwebengine-webenginewidgets-minimal-main-cpp.html">webenginewidgets/minimal/main.cpp</a></li>
<li><a href="qtwebengine-webenginewidgets-minimal-minimal-pro.html">webenginewidgets/minimal/minimal.pro</a></li>
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