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7<title>GetLastUserMakerNotePointer</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>::GetLastUserMakerNotePointer</CODE> Member Function</h1>
11<h2>Syntax</h2>
12    <div class="section">
13      <pre class="definition">#include &lt;nn/jpeg.h&gt;
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15const <a href="../../../../nn_types/u8.html">u8</a> * GetLastUserMakerNotePointer() 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 pointer to the Maker Note. Returns <CODE>NULL</CODE> on failure. </div>
24<h2>Description</h2>
25    <div class="section">
26<p>Gets a pointer to the Maker Note for CTR applications of the image that was either decoded or whose EXIF information was extracted immediately previous to this call.</p><p>If that processing fails, this function also fails. This function needs the image data to get the information, so do not destroy the image data.</p><p>Use the <CODE><a href="../../../../nn/jpeg/CTR/JpegMpDecoder/GetLastUserMakerNoteSize.html">GetLastUserMakerNoteSize</a></CODE> function to get the size of the Maker Note data in bytes. If the size of the data is <CODE>0</CODE> bytes, both that function and this function fail.</p><p>Success of this function does not guarantee that the image was taken with a CTR application.</p><!-- write here --></div>
27<h2>Revision History</h2>
28    <div class="section">
29      <dl class="history">
30        <dt>2010/06/14</dt>
31<dd>Initial version.<br />
32        </dd>
33      </dl>
34    </div>
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