<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- qdoc-manual-markupcmds.qdoc --> <title>Including Code Inline | QDoc Manual 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="qdoc-index.html">QDoc Manual</a></td><td >Including Code Inline</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"> <link rel="prev" href="05-qdoc-commands-documentstructure.html" /> <link rel="next" href="07-0-qdoc-commands-includingexternalcode.html" /> <p class="naviNextPrevious headerNavi"> <a class="prevPage" href="05-qdoc-commands-documentstructure.html">Document Structure</a> <span class="naviSeparator"> ◦ </span> <a class="nextPage" href="07-0-qdoc-commands-includingexternalcode.html">Including External Code</a> </p><p/> <div class="sidebar"> <div class="toc"> <h3><a name="toc">Contents</a></h3> <ul> <li class="level1"><a href="#code">\code</a></li> <li class="level1"><a href="#badcode">\badcode</a></li> <li class="level1"><a href="#newcode">\newcode</a></li> <li class="level1"><a href="#oldcode">\oldcode</a></li> <li class="level1"><a href="#qml">\qml</a></li> </ul> </div> <div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">Including Code Inline</h1> <span class="subtitle"></span> <!-- $$$06-qdoc-commands-includecodeinline.html-description --> <div class="descr"> <a name="details"></a> <p>The following commands are used to render source code without formatting. The source code begins on a new line, rendered in the code.</p> <p><b>Note: </b>Although most of these commands are for rendering C++ code, the <a href="07-0-qdoc-commands-includingexternalcode.html#snippet-command">\snippet</a> and <a href="07-0-qdoc-commands-includingexternalcode.html#codeline-command">\codeline</a> commands are preferred over the others. These commands allow equivalent code snippets for other Qt language bindings to be substituted for the C++ snippets in the documentation.</p><a name="code-command"></a><a name="code"></a> <h2 id="code">\code</h2> <p>The \code and \endcode commands enclose a snippet of source code.</p> <p><b>Note: </b>The <a href="04-qdoc-commands-textmarkup.html#c-command">\c</a> command can be used for short code fragments within a sentence. The \code command is for longer code snippets. It renders the code verbatim in a separate paragraph in a html <pre> element, and parses the enclosed snippet, creating links to any known types in the code.</p><p>For documenting command-line instructions, shell scripts, or any content that is not in a Qt language recognized by QDoc, use <a href="06-qdoc-commands-includecodeinline.html#badcode-command">\badcode</a> instead.</p> <p>When processing any of the \code, <a href="06-qdoc-commands-includecodeinline.html#newcode-command">\newcode</a> or <a href="06-qdoc-commands-includecodeinline.html#oldcode-command">\oldcode</a> commands, QDoc removes all indentation that is common for the verbatim code blocks within a <code>/</code><code>*!</code> ... <code>*</code><code>/</code> comment before it adds the standard indentation.</p> <p><b>Note: </b>This doesn't apply to externally quoted code using the <a href="07-0-qdoc-commands-includingexternalcode.html#quotefromfile-command">\quotefromfile</a> or <a href="07-0-qdoc-commands-includingexternalcode.html#quotefile-command">\quotefile</a> command.</p><pre class="cpp"> <span class="operator">/</span> <span class="operator">*</span><span class="operator">!</span> \code <span class="preprocessor">#include <QApplication></span> <span class="preprocessor">#include <QPushButton></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="operator">.</span><span class="operator">.</span><span class="operator">.</span> } \ endcode <span class="operator">*</span> <span class="operator">/</span> </pre> <p>QDoc renders this as:</p> <pre class="cpp"> <span class="preprocessor">#include <QApplication></span> <span class="preprocessor">#include <QPushButton></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="operator">.</span><span class="operator">.</span><span class="operator">.</span> } </pre> <p>Other QDoc commands are disabled within \code... \endcode, and the special character '\' is accepted and rendered like the rest of the code.</p> <p>To include code snippets from an external file, use the <a href="07-0-qdoc-commands-includingexternalcode.html#snippet-command">\snippet</a> and <a href="07-0-qdoc-commands-includingexternalcode.html#codeline-command">\codeline</a> commands.</p> <p>See also <a href="04-qdoc-commands-textmarkup.html#c-command">\c</a>, <a href="06-qdoc-commands-includecodeinline.html#badcode-command">\badcode</a>, <a href="07-0-qdoc-commands-includingexternalcode.html#quotefromfile-command">\quotefromfile</a>, <a href="06-qdoc-commands-includecodeinline.html#newcode-command">\newcode</a>, and <a href="06-qdoc-commands-includecodeinline.html#oldcode-command">\oldcode</a>.</p> <a name="badcode-command"></a><a name="badcode"></a> <h2 id="badcode">\badcode</h2> <p>Similar to <a href="06-qdoc-commands-includecodeinline.html#code-command">\code</a>, \badcode and \endcode commands enclose content that is rendered verbatim in a separate paragraph, but no parsing or automatic link creation is performed. Instead, the content is treated as plain text.</p> <p>Substitute \code with this command when documenting command-line instructions, shell scripts or any other content that is not in a Qt language, but should still be styled similarly to a \code paragraph.</p> <a name="newcode-command"></a><a name="newcode"></a> <h2 id="newcode">\newcode</h2> <p>The \newcode, \oldcode, and \endcode commands enable you to show how to port a snippet of code to a new version of an API.</p> <p>The \newcode command and its companion the \oldcode command are a convenience combination of the <a href="06-qdoc-commands-includecodeinline.html#code-command">\code</a> commands: this combination provides a text relating the two code snippets to each other.</p> <p>The \newcode command requires a preceding \oldcode statement.</p> <p>Like the <a href="06-qdoc-commands-includecodeinline.html#code-command">\code</a> command, the \newcode command renders its code on a new line in the documentation using a monospace font and the standard indentation.</p> <pre class="cpp"> <span class="operator">/</span> <span class="operator">*</span><span class="operator">!</span> \oldcode <span class="keyword">if</span> (printer<span class="operator">-</span><span class="operator">></span>setup(parent)) <span class="operator">.</span><span class="operator">.</span><span class="operator">.</span> \newcode <span class="type">QPrintDialog</span> dialog(printer<span class="operator">,</span> parent); <span class="keyword">if</span> (dialog<span class="operator">.</span>exec()) <span class="operator">.</span><span class="operator">.</span><span class="operator">.</span> \ endcode <span class="operator">*</span> <span class="operator">/</span> </pre> <p>QDoc renders this as:</p> <blockquote><p>For example, if you have code like</p> <pre class="cpp plain"> if (printer->setup(parent)) ... </pre> <p>you can rewrite it as</p> <pre class="cpp"> <span class="type">QPrintDialog</span> dialog(printer<span class="operator">,</span> parent); <span class="keyword">if</span> (dialog<span class="operator">.</span>exec()) <span class="operator">.</span><span class="operator">.</span><span class="operator">.</span> </pre> </blockquote> <p>Other QDoc commands are disabled within \oldcode ... \endcode, and the '\' character doesn't need to be escaped.</p> <a name="oldcode-command"></a><a name="oldcode"></a> <h2 id="oldcode">\oldcode</h2> <p>The \oldcode command requires a corresponding \newcode statement; otherwise QDoc fails to parse the command and emits a warning.</p> <p>See also <a href="06-qdoc-commands-includecodeinline.html#newcode-command">\newcode</a>.</p> <a name="qml-command"></a><a name="qml"></a> <h2 id="qml">\qml</h2> <p>The \qml and \endqml commands enclose a snippet of QML source code.</p> <pre class="cpp"> <span class="operator">/</span> <span class="operator">*</span><span class="operator">!</span> \qml import <span class="type">QtQuick</span> <span class="number">2.0</span> Row { Rectangle { width: <span class="number">100</span>; height: <span class="number">100</span> color: <span class="string">"blue"</span> transform: Translate { y: <span class="number">20</span> } } Rectangle { width: <span class="number">100</span>; height: <span class="number">100</span> color: <span class="string">"red"</span> transform: Translate { y: <span class="operator">-</span><span class="number">20</span> } } } \endqml <span class="operator">*</span> <span class="operator">/</span> </pre> <p>QDoc renders this as:</p> <pre class="qml"> import QtQuick 2.0 <span class="type">Row</span> { <span class="type">Rectangle</span> { <span class="name">width</span>: <span class="number">100</span>; <span class="name">height</span>: <span class="number">100</span> <span class="name">color</span>: <span class="string">"blue"</span> <span class="name">transform</span>: <span class="name">Translate</span> { <span class="name">y</span>: <span class="number">20</span> } } <span class="type">Rectangle</span> { <span class="name">width</span>: <span class="number">100</span>; <span class="name">height</span>: <span class="number">100</span> <span class="name">color</span>: <span class="string">"red"</span> <span class="name">transform</span>: <span class="name">Translate</span> { <span class="name">y</span>: -<span class="number">20</span> } } } </pre> </div> <!-- @@@06-qdoc-commands-includecodeinline.html --> <p class="naviNextPrevious footerNavi"> <a class="prevPage" href="05-qdoc-commands-documentstructure.html">Document Structure</a> <span class="naviSeparator"> ◦ </span> <a class="nextPage" href="07-0-qdoc-commands-includingexternalcode.html">Including External Code</a> </p> </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>