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7<title>SwitchContext</title>
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10<h1><CODE><a href="../../../nn/Overview.html">nn</a>::<a href="../../../nn/camera/Overview.html">camera</a>::<a href="../../../nn/camera/CTR/Overview.html">CTR</a>::SwitchContext</CODE> Function</h1>
11<h2>Syntax</h2>
12    <div class="section">
13      <pre class="definition">
14<a href="../../../nn/Result/Overview.html">nn::Result</a> SwitchContext(
15     <a href="../../../nn/camera/CTR/CameraSelect.html">CameraSelect</a> select,
16     <a href="../../../nn/camera/CTR/Context.html">Context</a> next
17);
18</pre>
19    </div>
20<h2>Parameters</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>select</th>
33<td>Specifies the camera whose context you want to switch.</td>
34        </tr>
35        <tr>
36<td>in</td>
37<th>next</th>
38<td>Specifies the context to switch to.</td>
39        </tr> </table>
40    </div>
41<h2>Return Values</h2>
42<div class="section">Returns the function's execution result. Returns one of the <a href="../../../nn/Result/Overview.html"><CODE>Result</CODE></A> values listed below. <br />
43      <table class="arguments">
44        <thead>
45          <tr>
46<th>Value</th>
47<td>Description</td>
48          </tr>
49        </thead>
50        <tr>
51<th><CODE>Result::IsSuccess</CODE></th>
52<td>Process was successful.</td>
53        </tr>
54        <tr>
55<th><CODE>ResultIsSleeping</CODE></th>
56<td>This function is unusable because the system cover is closed.</td>
57        </tr>
58        <tr>
59<th><CODE>ResultFatalError</CODE></th>
60<td>There may be something physically wrong with the camera.</td>
61        </tr>
62      </table> </div>
63<h2>Description</h2>
64    <div class="section">
65<p>Switches the camera settings context.</p><P>
66It is faster to switch the context than to configure settings individually.
67            </P><P>
68Because this function replaces the specified camera's settings with the settings of the specified context (A or B), you cannot set the <SPAN class="argument">select</SPAN> argument to <CODE>SELECT_NONE</CODE> or the <SPAN class="argument">next</SPAN> argument to <CODE>CONTEXT_BOTH</CODE>.
69            </P><P>
70The default value is <CODE>CONTEXT_A</CODE> for all cameras.
71</P><p><B>Note:</B> This function may block for an extended period if a camera is restarting.</p></div>
72<h2>Revision History</h2>
73    <div class="section">
74      <dl class="history">
75        <dt>2010/07/17</dt>
76<dd>Added explanation about operation during restart.
77        </dd>
78        <dt>2010/04/14</dt>
79<dd>Added a description of the default values.<br />
80        </dd>
81        <dt>2010/04/09</dt>
82<dd>Added description text.<br />
83        </dd>
84        <dt>2010/02/02</dt>
85<dd>Initial version.<br />
86        </dd>
87      </dl>
88    </div>
89  <hr><p>CONFIDENTIAL</p></body>
90</html>
91