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9<title>KBDSetDetachCallback</title>
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13
14<h1>KBDSetDetachCallback</h1>
15
16<h2>Syntax</h2>
17<dl><dd><pre class="construction">
18#include &lt;revolution/kbd.h&gt;
19
20KBDDevCallbackF KBDSetDetachCallback (KBDDevCallbackF fn);
21</pre></dd></dl>
22
23<h2>Arguments</h2>
24<TABLE class="arguments" border="1" >
25  <tr>
26<TH>fn</TH>
27<TD>Pointer to a function to call back when a USB keyboard device is physically detached.</TD>
28  </tr>
29</TABLE>
30
31<h2>Return Values</h2>
32<TABLE class="arguments" border="1" >
33  <tr>
34<TH>KBDDevCallbackF</TH>
35<TD>A pointer to the previous keyboard device detach callback.</TD>
36  </tr>
37</TABLE>
38
39<h2>Description</h2>
40<p>Registers a function with the USB keyboard library to call whenever a USB keyboard device is detached. The function pointer typedef <code>KBDDevCallbackF</code> is defined as follows.</p>
41
42<dl><dd><pre class="construction">
43typedef struct _KBDDevEvent {
44  KBDChannel channel;
45} KBDDevEvent;
46
47typedef void (*KBDDevCallbackF) (KBDDevEvent*);
48</pre></dd></dl>
49
50<p>The function <SPAN class="argument">fn</SPAN> is called with a pointer to a <SPAN class="argument">KBDDevEvent</SPAN> structure that contains the channel (keyboard) that was detached.</p>
51
52<h2>See Also</h2>
53<P class="reference">
54<a href="list.html">Keyboard API Function List</a>
55</p>
56
57<h2>Revision History</h2>
58<P>
592007/03/19 Initial version. <br>
60</p>
61
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