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7<title>SetHomeButtonCallback</title>
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9  <body>
10<h1><CODE>nn::applet::CTR::SetHomeButtonCallback</CODE> Function</h1>
11<h2>Syntax</h2>
12    <div class="section">
13      <pre class="definition">
14void SetHomeButtonCallback(
15     <a href="../../../nn/applet/CTR/AppletHomeButtonCallback.html">AppletHomeButtonCallback</a> callback,
16     uptr arg = 0
17);
18</pre>
19    </div>
20<h2>Arguments</h2>
21    <div class="section">
22      <table class="arguments">
23        <thead>
24          <tr>
25            <td width="15" />
26<th>Name</th>
27<td>Description</td>
28          </tr>
29        </thead>
30        <tr>
31<td>in</td>
32<th>callback</th>
33<td>Callback.</td>
34        </tr>
35        <tr>
36<td>in</td>
37<th>arg</th>
38<td>Callback arguments.</td>
39        </tr> </table>
40    </div>
41<h2>Return Values</h2>
42    <div class="section">
43None.
44               </div>
45<h2>Description</h2>
46    <div class="section">
47<p>Sets the callback invoked when HOME is pressed.</p><!-- write here --><P>
48The callback is called when a HOME Button press is detected.
49</P><PRE>
50 Example
51  bool myHomeButtonCallback( uptr arg, bool isActive, applet::HomeButtonState state )
52  {
53      NN_UNUSED_VAR(arg);
54      if ( isActive )
55      {
56          if ( state == applet::HOME_BUTTON_SINGLE_PRESSED )
57          {
58             NN_LOG(&quot;HOME BUTTON is clicked.\n&quot;);
59          }
60          else
61          {
62             NN_LOG(&quot;HOME BUTTON is double-clicked.\n&quot;);
63          }
64          return true;
65      }
66      else
67      {
68          return false;
69      }
70  }
71  nnMain()
72  {
73      applet::SetHomeButtonCallback( myHomeButtonCallback, 0 );
74         …
75  }
76</PRE></div>
77<h2>Revision History</h2>
78    <div class="section">
79      <dl class="history">
80        <dt>2010/11/10</dt>
81<dd>Initial version.<br />
82        </dd>
83      </dl>
84    </div>
85  <hr><p>CONFIDENTIAL</p></body>
86</html>
87