1<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2<html xml:lang="en-US" lang="en-US" xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 5 <meta http-equiv="Content-Style-Type" content="text/css" /> 6 <link rel="stylesheet" href="../../../css/manpage.css" type="text/css" /> 7<title>SetAutoExposure</title> 8 </head> 9 <body> 10<h1><CODE>nn::camera::CTR::SetAutoExposure</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> SetAutoExposure( 15<a href="../../../nn/camera/CTR/CameraSelect.html">CameraSelect</a> select, 16bool on 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>select</th> 33<td>Specifies which camera to change settings for.</td> 34 </tr> 35 <tr> 36<td>in</td> 37<th>on</th> 38<td>Specify <CODE>true</CODE> to enable or <CODE>false</CODE> to disable.</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>ResultSuccess</CODE></th> 52<td>Process was successful.</td> 53 </tr> 54 <tr> 55<th><CODE>ResultIsSleeping</CODE></th> 56<td>Unusable because the system's 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>Enables/disables auto exposure.</p><P> 66We recommend enabling this feature when starting a camera, because the exposure value is undefined immediately after a camera is started with the <CODE>Activate</CODE> function. 67 </P><P> 68The default value is <CODE>true</CODE> for all cameras. 69</P><p><B>Note:</B> This function may block for an extended period if a camera is restarting.</p></div> 70<h2>Revision History</h2> 71 <div class="section"> 72 <dl class="history"> 73 <dt>2010/07/17</dt> 74<dd>Added explanation about operation during restart. 75 </dd> 76 <dt>2010/04/14</dt> 77<dd>Added a description of the default values.<br /> 78 </dd> 79 <dt>2010/04/09</dt> 80<dd>Added description text.<br /> 81 </dd> 82 <dt>2010/02/02</dt> 83<dd>Initial version.<br /> 84 </dd> 85 </dl> 86 </div> 87 <hr><p>CONFIDENTIAL</p></body> 88</html> 89