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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
<html>
<head>
<!-- BEGIN META TAG INFO -->
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link rel="home" href="http://developer.apple.com/">
<link rel="find" href="http://developer.apple.com/search/">
<link rel="stylesheet" type="text/css" href="../../documentation/css/adcstyle.css" title="fonts">
<script language="JavaScript" src="../../documentation/js/adc.js" type="text/javascript"></script>
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<!-- BEGIN TITLE -->
<title>SimpleReach</title>
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<body><a name="//apple_ref/doc/uid/DTS10003238" title="SimpleReach"></a>
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<center>
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<tr>
<td scope="row"><img width="340" height="10" src="images/1dot.gif" alt=""></td>
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<tr valign="middle">
<td align="left" colspan="2">
<a href="http://developer.apple.com/">ADC Home</a> > <a href="../../referencelibrary/index.html">Reference Library</a> > <a href="../../samplecode/index.html">Sample Code</a> > <a href="../../samplecode/CoreFoundation/index.html">Core Foundation</a> > <a href="../../samplecode/CoreFoundation/idxNetworking-date.html">Networking</a> >
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<table width="680" border="0" cellpadding="0" cellspacing="0">
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<td><h1><div id="pagehead">SimpleReach</div></h1></td>
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<p><strong>Version:</strong> 1.1</p>
<p><strong>Posted:</strong> 2005-07-26</p>
<p><strong>Build Requirements:</strong> Xcode 1.1</p>
<p><strong>Runtime Requirements:</strong> Mac OS X 10.3</p>
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<p><strong>View Source Code:</strong>
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<option value="listing1.html">/Read Me About SimpleReach.txt</option>
<option value="listing2.html">/SimpleReach.c</option></select>
</p>
</form>
<p><strong><a href="SimpleReach.zip">Download Sample</a></strong> (“SimpleReach.zip”, 20.7K)<BR>
<strong><a href="SimpleReach.dmg">Download Sample</a></strong> (“SimpleReach.dmg”, 79.0K)</p>
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<h2>Description</h2>
<p>SimpleReach is a demonstration of the System Configuration framework asynchronous network reachability API, which lets you determine whether a particular host is reachable and monitor reachability changes.</p><p>It's important that you understand that, when this API says that the host is reachable, it means that nothing on *this* computer will prevent you from connecting with the host. Factors that are external to this computer may still prevent you from connecting.</p>
<h2>Document Revision History</h2>
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<tr>
<th width="100">Date</th>
<th width="580">Notes</th>
</tr>
<tr><td scope="row">2005-07-26</td><td>This sample code has been updated to include a project (for Xcode 2.1) to produce a universal binary and there were no code changes required for it to run correctly on the Developer Transition Systems.</td></tr>
<tr><td scope="row">2004-10-28</td><td>Demonstrates network host reachability testing using the System Configuration framework asynchronous network reachability API.</td></tr>
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<th>Did this document help you?</th>
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<div style="margin-bottom: 8px"><a href="http://developer.apple.com/feedback/?v=1&url=/samplecode/SimpleReach/index.html%3Fid%3DDTS10003238-1.0&media=dvd" target=_new>Yes</a>: Tell us what works for you.</div>
<div style="margin-bottom: 8px"><a href="http://developer.apple.com/feedback/?v=2&url=/samplecode/SimpleReach/index.html%3Fid%3DDTS10003238-1.0&media=dvd" target=_new>It’s good, but:</a> Report typos, inaccuracies, and so forth.</div>
<div><a href="http://developer.apple.com/feedback/?v=3&url=/samplecode/SimpleReach/index.html%3Fid%3DDTS10003238-1.0&media=dvd" target=_new>It wasn’t helpful</a>: Tell us what would have helped.</div>
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