RT1050_FreeRTOS_Hello/middleware/fatfs/documents/doc/getcwd.html

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<title>FatFs - f_getcwd</title>
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<body>
<div class="para func">
<h2>f_getcwd</h2>
<p>The f_getcwd function retrieves the current directory of the current drive.</p>
<pre>
FRESULT f_getcwd (
TCHAR* <span class="arg">buff</span>, <span class="c">/* [OUT] Buffer to return path name */</span>
UINT <span class="arg">len</span> <span class="c">/* [IN] The length of the buffer */</span>
);
</pre>
</div>
<div class="para arg">
<h4>Parameters</h4>
<dl class="par">
<dt>buff</dt>
<dd>Pointer to the buffer to receive the current directory string.</dd>
<dt>len</dt>
<dd>Size of the buffer in unit of <tt>TCHAR</tt>.</dd>
</dl>
</div>
<div class="para ret">
<h4>Return Values</h4>
<p>
<a href="rc.html#ok">FR_OK</a>,
<a href="rc.html#de">FR_DISK_ERR</a>,
<a href="rc.html#ie">FR_INT_ERR</a>,
<a href="rc.html#nr">FR_NOT_READY</a>,
<a href="rc.html#ne">FR_NOT_ENABLED</a>,
<a href="rc.html#ns">FR_NO_FILESYSTEM</a>,
<a href="rc.html#tm">FR_TIMEOUT</a>,
<a href="rc.html#nc">FR_NOT_ENOUGH_CORE</a>
</p>
</div>
<div class="para desc">
<h4>Description</h4>
<p>The <tt>f_getcwd</tt> function retrieves full path name of the current directory of the current drive. When <tt><a href="config.html#volumes">FF_VOLUMES</a> &gt;= 2</tt>, a heading drive prefix is added to the path name. The style of drive prefix depends on <tt><a href="config.html#str_volume_id">FF_STR_VOLUME_ID</a></tt>.</p>
<p><em>Note: In this revision, this function cannot retrieve the current directory path on the exFAT volume. It always returns the root directory path.</em></p>
</div>
<div class="para comp">
<h4>QuickInfo</h4>
<p>Available when <tt><a href="config.html#fs_rpath">FF_FS_RPATH</a> == 2</tt>.</p>
</div>
<div class="para use">
<h4>Example</h4>
<pre>
FRESULT fr;
TCHAR str[SZ_STR];
fr = <em>f_getcwd</em>(str, SZ_STR); <span class="c">/* Get current directory path */</span>
</pre>
</div>
<div class="para ref">
<h4>See Also</h4>
<p><tt><a href="chdrive.html">f_chdrive</a>, <a href="chdir.html">f_chdir</a></tt></p>
</div>
<p class="foot"><a href="../00index_e.html">Return</a></p>
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