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7<title>TryRead</title>
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10<h1><CODE>nn::fs::FileInputStream::TryRead</CODE> Member Function</h1>
11<h2>Syntax</h2>
12    <div class="section">
13      <pre class="definition">
14virtual <a href="../../../nn/Result/Overview.html">Result</a> TryRead(
15     s32 * pOut,
16     void * buffer,
17     size_t size
18);
19</pre>
20    </div>
21<h2>Arguments</h2>
22    <div class="section">
23      <table class="arguments">
24        <thead>
25          <tr>
26            <td width="15" />
27<th>Name</th>
28<td>Description</td>
29          </tr>
30        </thead>
31        <tr>
32<td>out</td>
33<th>pOut</th>
34<td>Stores the size of data (in bytes) that were actually copied. The value 0 is stored if the function reaches the end of the file.</td>
35        </tr>
36        <tr>
37<td>in</td>
38<th>buffer</th>
39<td>Pointer to the buffer where the data will be copied.</td>
40        </tr>
41        <tr>
42<td>in</td>
43<th>size</th>
44<td>Maximum number of bytes to copy.</td>
45        </tr> </table>
46    </div>
47<h2>Return Values</h2>
48<div class="section">Returns the result of the operation. </div>
49<h2>Description</h2>
50    <div class="section">
51<p>Reads the specified amount of data from a file into a buffer.</p><p>Up to <SPAN class="argument">size</SPAN> bytes of data are read from the current file position and copied to the region at the address specified by <SPAN class="argument">buffer</SPAN>. Returns the size of data (in bytes) that were actually copied.</p><p>Returns 0 if it reaches the end of the file.</p><!-- write here --></div>
52<h2>Revision History</h2>
53    <div class="section">
54      <dl class="history">
55        <dt>2010/06/14</dt>
56<dd>Initial version.<br />
57        </dd>
58      </dl>
59    </div>
60  <hr><p>CONFIDENTIAL</p></body>
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