<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Disconnecting signal handlers</title> <link rel="stylesheet" href="style.css" type="text/css"> <meta name="generator" content="DocBook XSL Stylesheets V1.75.1"> <link rel="home" href="index.html" title="Programming with gtkmm"> <link rel="up" href="chapter-signals.html" title="Appendix B. Signals"> <link rel="prev" href="sec-writing-signal-handlers.html" title="Writing signal handlers"> <link rel="next" href="sec-overriding-default-signal-handlers.html" title="Overriding default signal handlers"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr><th colspan="3" align="center">Disconnecting signal handlers</th></tr> <tr> <td width="20%" align="left"> <a accesskey="p" href="sec-writing-signal-handlers.html"><img src="icons/prev.png" alt="Prev"></a> </td> <th width="60%" align="center">Appendix B. Signals</th> <td width="20%" align="right"> <a accesskey="n" href="sec-overriding-default-signal-handlers.html"><img src="icons/next.png" alt="Next"></a> </td> </tr> </table> <hr> </div> <div class="sect1" title="Disconnecting signal handlers"> <div class="titlepage"><div><div><h2 class="title" style="clear: both"> <a name="sec-disconnecting-signal-handlers"></a>Disconnecting signal handlers</h2></div></div></div> <p> Let's take another look at a Signal's <code class="literal">connect</code> method: </p> <p> </p> <pre class="programlisting"> sigc::signal<void,int>::iterator signal<void,int>::connect( const sigc::slot<void,int>& ); </pre> <p> </p> <p> Notice that the return value is of type <code class="classname">sigc::signal<void,int>::iterator</code>. This can be implicitely converted into a <code class="classname">sigc::connection</code> which in turn can be used to control the connection. By keeping a connection object you can disconnect its associated signal handler using the method <code class="methodname">sigc::connection::disconnect()</code>. </p> </div> <div class="navfooter"> <hr> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"> <a accesskey="p" href="sec-writing-signal-handlers.html"><img src="icons/prev.png" alt="Prev"></a> </td> <td width="20%" align="center"><a accesskey="u" href="chapter-signals.html"><img src="icons/up.png" alt="Up"></a></td> <td width="40%" align="right"> <a accesskey="n" href="sec-overriding-default-signal-handlers.html"><img src="icons/next.png" alt="Next"></a> </td> </tr> <tr> <td width="40%" align="left" valign="top">Writing signal handlers </td> <td width="20%" align="center"><a accesskey="h" href="index.html"><img src="icons/home.png" alt="Home"></a></td> <td width="40%" align="right" valign="top"> Overriding default signal handlers</td> </tr> </table> </div> </body> </html>
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