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9<title>KBDLedEvent structure</title>
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13
14<h1>KBDLedEvent structure</h1>
15
16<h2>Syntax</h2>
17<dl><dd><pre class="construction">#include &lt;revolution/kbd/kbd.h&gt;
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19typedef struct _KBDLedEvent {
20  KBDChannel  channel;
21  KBDLedState leds;
22  KBDEc       rc;
23} KBDLedEvent;
24</pre></dd></dl>
25
26<H2>Description</H2>
27<p>
28The <code>KBDLedEvent</code> structure contains the keyboard channel, LED state, and a return code from the callback associated with <a href="KBDSetLedsAsync.html"><code>KBDSetLedsAsync</code></a>.
29</p>
30<p>
31When the <a href="KBDSetLedsAsync.html"><code>KBDSetLedsAsync</code></a> function completes, it calls the callback that was passed to it with a pointer to this structure, as well as a pointer to the user-supplied argument.
32</p>
33<p>
34The <SPAN class="argument">rc</SPAN> returned in the callback is either <code>KBD_SUCCESS</code> or <code>KBD_BUSY</code>. The return code <code>KBD_SUCCESS</code> means that the LED command was successfully sent to the keyboard. <code>KBD_ERR_BUSY</code> means that transmission of the command failed.
35</p>
36
37<h2>See Also</h2>
38<P class="reference">
39<a href="list.html">Keyboard Functions</a>,
40<a href="KBDSetLedsAsync.html">KBDSetLedsAsync</a>
41</p>
42
43<H2>Revision History</H2>
44<p>
452007/03/20 Initial version.<br>
46</p>
47
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