<?xml version="1.0" encoding="UTF-8" standalone="no"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>What about return values?</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /><link rel="home" href="index.html" title="LibSigC++" /><link rel="up" href="ch03.html" title="Chapter 3. Writing your own signals" /><link rel="prev" href="ch03.html" title="Chapter 3. Writing your own signals" /><link rel="next" href="ch04.html" title="Chapter 4. Advanced topics" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">What about return values?</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch03.html">Prev</a> </td><th width="60%" align="center">Chapter 3. Writing your own signals</th><td width="20%" align="right"> <a accesskey="n" href="ch04.html">Next</a></td></tr></table><hr /></div><div class="sect1" title="What about return values?"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="id3047272"></a>What about return values?</h2></div></div></div><p>If you only ever have one slot connected to a signal, or if you only care about the return value of the last registered one, it's quite straightforward:</p><pre class="programlisting"> SigC::Signal0<int> somesignal; int a_return_value; a_return_value = somesignal(); </pre><p>If you care about every return value things are a little more complicated. See the section on Marshallers for more info.</p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ch03.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch03.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="ch04.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 3. Writing your own signals </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Chapter 4. Advanced topics</td></tr></table></div></body></html>
