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<link rel="stylesheet" type="text/css" href="doc.css"/>
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<meta author="The MathWorks Ltd."/>
<meta copyright="2017 The MathWorks Ltd."/>
<title>Context help</title>
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<td bgcolor="#e4f0f8"><A href="User_guide.html"><font face="Arial" bgcolor="#e4f0f8" size="+0" underline="0" color="#000000"><b>User_guide</b></font></A></td>
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<h2>4.1: Context help&nbsp;<a href="User_guide4.html"><img src="Images/uparrow.png" border="0" align="top" alt="Go back up one level"/></a></h2>
<p>
When a <a href="uix.BoxPanel.html"><code class="FUNCTION">uix.BoxPanel</code></a> has its <code>HelpFcn</code>
filled in, a help button (?) is shown in the upper-right of the
title-bar. When the user clicks this button the specified function
is called.
</p>
<h3>For example:</h3>
<para>Here we hookup the HelpFcn to simply bring up
the MATLAB documentation for each command. Clicking any of the "?" buttons
will cause the MATLAB help browser to open.</para>
<pre style="background-color: #eeeeff; margin-left: 20px; margin-right: 20px"><font color="#000011">f = <a href="matlab:doc figure"><code class="FUNCTION">figure</code></a>( 'Name', 'uix.BoxPanel Help Example' );
b = <a href="uix.HBox.html"><code class="FUNCTION">uix.HBox</code></a>( 'Parent', f );
<a href="uix.BoxPanel.html"><code class="FUNCTION">uix.BoxPanel</code></a>( 'Parent', b, 'Title', 'sin', 'HelpFcn', @(a,b) doc('sin') );
<a href="uix.BoxPanel.html"><code class="FUNCTION">uix.BoxPanel</code></a>( 'Parent', b, 'Title', 'cos', 'HelpFcn', @(a,b) doc('cos') );
<a href="uix.BoxPanel.html"><code class="FUNCTION">uix.BoxPanel</code></a>( 'Parent', b, 'Title', 'tan', 'HelpFcn', @(a,b) doc('tan') );
</font></pre>
<p style="background-color: #ddddee; margin-left: 20px; margin-right: 20px"><font color="#000022"><center><img src="Images/BoxPanelHelpExample.png"/></center></font></p>
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<font face="Arial" bgcolor="#e4f0f8" size="normal" underline="0" color="#000000">&copy; 2017 The MathWorks Ltd</font>
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