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7<title>GetMpImageUidListOffset</title>
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9  <body>
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>::GetMpImageUidListOffset</CODE> Member Function</h1>
11<h2>Syntax</h2>
12    <div class="section">
13      <pre class="definition">#include &lt;nn/jpeg.h&gt;
14
15static size_t GetMpImageUidListOffset(
16     const <a href="../../../../nn/jpeg/CTR/MpIndex/Overview.html">MpIndex</a> * pIndex
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>pIndex</th>
33<td>Specifies the MP Index IFD. To get this ahead of time, use the <CODE><a href="../../../../nn/jpeg/CTR/JpegMpDecoder/GetMpIndex.html">GetMpIndex</a></CODE> function.</td>
34        </tr> </table>
35    </div>
36<h2>Return Values</h2>
37<div class="section">If successful, returns the byte offset to the unique ID list for individual images.<br />Returns <CODE>0</CODE> on failure. </div>
38<h2>Description</h2>
39    <div class="section">
40<p>Gets the byte offset from the starting image to the unique ID list for individual images. This offset is included in the MP Index IFD.</p><p>The unique ID list for individual images is an MP format option tag and cannot necessarily be obtained for all images. Use the <CODE><a href="../../../../nn/jpeg/CTR/JpegMpDecoder/GetMpImageUidListSize.html">GetMpImageUidListSize</a></CODE> function to get the size of the list in bytes.</p><p>The application must confirm whether the region indicated by this obtained byte offset and the size in bytes obtained from the <CODE><a href="../../../../nn/jpeg/CTR/JpegMpDecoder/GetMpImageSize.html">GetMpImageSize</a></CODE> function is a valid region.</p><!-- write here --></div>
41<h2>Revision History</h2>
42    <div class="section">
43      <dl class="history">
44        <dt>2010/06/14</dt>
45<dd>Initial version.<br />
46        </dd>
47      </dl>
48    </div>
49  <hr><p>CONFIDENTIAL</p></body>
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51