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7<title>GetLastDateTimePointer</title>
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10<h1><CODE><a href="../../../../nn/Overview.html">nn</a>::<a href="../../../../nn/jpeg/Overview.html">jpeg</a>::<a href="../../../../nn/jpeg/CTR/Overview.html">CTR</a>::<a href="../../../../nn/jpeg/CTR/JpegMpDecoder/Overview.html">JpegMpDecoder</a>::GetLastDateTimePointer</CODE> Member Function</h1>
11<h2>Syntax</h2>
12    <div class="section">
13      <pre class="definition">#include &lt;nn/jpeg.h&gt;
14
15const char * GetLastDateTimePointer() const;
16</pre>
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18<h2>Parameters</h2>
19    <div class="section">
20<p>None.</p>
21    </div>
22<h2>Return Values</h2>
23<div class="section">If successful, returns a string pointer to the date and time information. Returns <CODE>NULL</CODE> on failure. </div>
24<h2>Description</h2>
25    <div class="section">
26<p>Gets a string pointer to the timestamp (time of capture) of the image that was either decoded or had Exif information extracted immediately prior to this call.</p><p>If that processing fails, this function also fails. This function needs image data to get the information. Do not destroy the image data. This information is the information registered in the IFD0 <CODE>DateTime</CODE> tag.</p><p>This function fails if the string is not <CODE>0</CODE>-terminated. The size of the data is <CODE><a href="../../../../nn/jpeg/CTR/DATE_TIME_SIZE.html">DATE_TIME_SIZE</a></CODE> (20) bytes.<br />The date and time are obtained as a string with the format &quot;<CODE>YYYY:MM:DD HH:MM:DD</CODE>&quot; terminated with <CODE>0x00</CODE> (20 characters in total).</p><p>If the obtained pointer is used to change the timestamp of the image data, then the timestamp obtained from <a href="../../../../nn/jpeg/CTR/JpegMpDecoder/GetLastDateTime.html">GetLastDateTime</a> is the modified value.</p><!-- write here --></div>
27<h2>Revision History</h2>
28    <div class="section">
29      <dl class="history">
30        <dt>2011/03/03</dt>
31<dd>Initial version.<br />
32        </dd>
33      </dl>
34    </div>
35  <hr><p>CONFIDENTIAL</p></body>
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