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9<title>WPADSetSyncDeviceCallback</title>
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13
14<h1>WPADSetSyncDeviceCallback</h1>
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16
17<h2>C Specification</h2>
18
19<dl>
20<dd><pre><code>#include &lt;revolution/wpad.h&gt;
21
22#define WPAD_SYNC_EVT_BUSY        -1
23#define WPAD_SYNC_EVT_START        0
24#define WPAD_SYNC_EVT_DONE         1
25
26typedef void (*WPADSyncDeviceCallback) ( s32 result, s32 num );
27
28WPADSyncDeviceCallback *WPADSetSyncDeviceCallback( WPADSyncDeviceCallback callback )</code></pre>
29  </dd>
30</dl>
31
32<h2>Arguments</h2>
33<TABLE border="1">
34  <tr>
35<TD><code><b><i>callback</i></b></code></TD>
36      <TD>Sets the callback called when the synchro button is pressed and when registration is completed.</TD>
37    </tr>
38</TABLE>
39<h2>Return Values</h2>
40<p>A pointer to the previously set callback.</p>
41<H2>Description</H2>
42<P>Sets the callback called when the synchro button is pressed and when registration is completed. If no callback is set, <A href="./WPADStartSyncDevice.html"><code>WPADStartSyncDevice</code></a> is automatically called. </P>
43<p>
44One of the <code>WPAD_SYNC_EVT_*</code> set is passed as the <code>result</code> argument for the callback function.
45</p>
46
47<table border="1">
48<tr>
49	<td><code>WPAD_SYNC_EVT_BUSY</code></td><td>Other processes (including registration) are currently running.</td>
50</tr>
51<tr>
52	<td><code>WPAD_SYNC_EVT_START</code></td><td>The synchro button on the Wii console was pressed.</td>
53</tr>
54<tr>
55	<td><code>WPAD_SYNC_EVT_DONE</code></td><td>Registration has ended. The number of Wii Remotes registered is passed to <code>num</code>.</td>
56</tr>
57</table>
58
59<h2>See Also</h2>
60<p>
61<A href="./toc.html" target="contents"><CODE>WPAD</CODE> Functions</A><br> <A href="./WPADStartSyncDevice.html"><CODE>WPADStartSyncDevice</CODE></A><br>
62</p>
63
64<H2>Revision History</H2>
65<P>
6606/19/2006 Initial version.<BR>
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