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7<title>SetAutoExposureWindow</title>
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9  <body>
10<h1><CODE>nn::camera::CTR::SetAutoExposureWindow</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> SetAutoExposureWindow(
15     <a href="../../../nn/camera/CTR/CameraSelect.html">CameraSelect</a> select,
16     s16 startX,
17     s16 startY,
18     s16 width ,
19     s16 height
20);
21</pre>
22    </div>
23<h2>Arguments</h2>
24    <div class="section">
25      <table class="arguments">
26        <thead>
27          <tr>
28            <td width="15" />
29<th>Name</th>
30<td>Description</td>
31          </tr>
32        </thead>
33        <tr>
34<td>in</td>
35<th>select</th>
36<td>Specifies which camera to change settings for.</td>
37        </tr>
38        <tr>
39<td>in</td>
40<th><SPAN class="argument">startX</SPAN></th>
41<td>Specifies the x-coordinate of the region's upper-left corner. If the x-coordinate of the image's upper-left corner is defined as 0, this argument can be specified in 40-pixel increments in the range [0, 600].</td>
42        </tr>
43        <tr>
44<td>in</td>
45<th><SPAN class="argument">startY</SPAN></th>
46<td>Specifies the y-coordinate of the region's upper-left corner. If the y-coordinate of the image's upper-left corner is defined as 0, this argument can be specified in 30-pixel increments in the range [0, 450].</td>
47        </tr>
48        <tr>
49<td>in</td>
50<th>width</th>
51<td>Specifies the region's width. This can be specified in 40-pixel increments in the range [40, 640]. The sum of this value and <SPAN class="argument">startX</SPAN> must be no larger than 640.</td>
52        </tr>
53        <tr>
54<td>in</td>
55<th>height</th>
56<td>Specifies the region's height. This can be specified in 30-pixel increments in the range [30, 480]. The sum of this value and <SPAN class="argument">startY</SPAN> must be no larger than 480.</td>
57        </tr> </table>
58    </div>
59<h2>Return Values</h2>
60<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 />
61      <table class="arguments">
62        <thead>
63          <tr>
64<th>Value</th>
65<td>Description</td>
66          </tr>
67        </thead>
68        <tr>
69<th><CODE>ResultSuccess</CODE></th>
70<td>Process was successful.</td>
71        </tr>
72        <tr>
73<th><CODE>ResultIsSleeping</CODE></th>
74<td>Unusable because the system is closed.</td>
75        </tr>
76        <tr>
77<th><CODE>ResultFatalError</CODE></th>
78<td>There may be something physically wrong with the camera.</td>
79        </tr>
80      </table> </div>
81<h2>Description</h2>
82    <div class="section">
83<p>Sets the region within the view to use as the basis for calculating auto exposure (the response frame).</p><p>
84The rectangular region specified by <SPAN class="argument">startX</SPAN>, <SPAN class="argument">startY</SPAN>, <SPAN class="argument">width</SPAN>, and <SPAN class="argument">height</SPAN> must be no larger than 640x480.
85            </p><P>
86				The default values for each camera are shown below.
87			</P><table><tr><th /><th>Inner Camera</th><th>Right Outer Camera</th><th>Left Outer Camera</th></tr><tr><th><SPAN class="argument">startX</SPAN></th><td>80</td><td>0</td><td>0</td></tr><tr><th><SPAN class="argument">startY</SPAN></th><td>60</td><td>0</td><td>0</td></tr><tr><th>width</th><td>480</td><td>640</td><td>640</td></tr><tr><th>height</th><td>360</td><td>480</td><td>480</td></tr></table><p>
88Although the cameras use the response frame that can be set by this function only when auto-exposure is enabled, you can set the response frame with this function even when auto-exposure is disabled. You must therefore specify appropriate values when you call this function even if auto-exposure is disabled.
89</p><p><B>Note:</B> This function may block for an extended period if a camera is restarting.</p></div>
90<h2>Revision History</h2>
91    <div class="section">
92      <dl class="history">
93        <dt>2010/12/10</dt>
94<dd>Mentioned that this function can set values even when auto-exposure is disabled.
95        </dd>
96        <dt>2010/12/07</dt>
97<dd>Fixed errors in the description of the range for the <SPAN class="argument">width</SPAN> and <SPAN class="argument">height</SPAN> values.
98        </dd>
99        <dt>2010/07/17</dt>
100<dd>Added explanation about operation during restart.
101        </dd>
102        <dt>2010/04/13</dt>
103<dd>Initial version.<br />
104        </dd>
105      </dl>
106    </div>
107  <hr><p>CONFIDENTIAL</p></body>
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