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9<title>DVDSetAutoInvalidation</title>
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13
14<h1>DVDSetAutoInvalidation</h1>
15
16
17<h2>C Specification</h2>
18
19<dl>
20  <dd><pre><code>#include &lt;revolution/dvd.h&gt;</CODE></pre></dd>
21<dd><pre><CODE>BOOL DVDSetAutoInvalidation(BOOL autoInval);
22</CODE></pre></dd>
23</dl>
24<h2>Arguments</h2>
25<TABLE border="1" cellpadding="3" cellspacing="0.1">
26  <tr>
27<TD width="120" bgcolor="#ffffe8"><em><strong><code>autoInval</code></strong></em></TD>
28      <TD width="520"><CODE>TRUE</CODE> to set invalidation mode to AUTO. <CODE>FALSE</CODE> to set to MANUAL,</TD>
29    </tr>
30</TABLE>
31<h2>Return Values</h2>
32
33<P><CODE>TRUE</CODE> if invalidation mode is AUTO and <CODE>FALSE</CODE> if invalidation mode is MANUAL. </P>
34<H2>Description</H2>
35<P>Changes the invalidation mode. If the invalidation mode is set to AUTO, the <a href="DVDRead.html"><code>DVDRead</code></a> and <a href="DVDReadAsync.html"><code>DVDReadAsync</code></a> functions invalidate the data cache before issuing the read command to the drive. Programmers don't need to call the <a href="../os/Cache/DCInvalidateRange.html"><code>DCInvalidateRange</code></a>function in the program code. If Invalidation mode is set to MANUAL, the <a href="DVDRead.html"><code>DVDRead</code></a> and <a href="DVDReadAsync.html"><code>DVDReadAsync</code></a> functions don't invalidate the data cache. If necessary, programmers must call the <code><a href="../os/Cache/DCInvalidateRange.html">DCInvalidateRange()</a></code> function.</P>
36<P>By default, the invalidation mode is set to AUTO.</P>
37<h2>See Also</h2>
38
39<p><code><a href="DVDRead.html">DVDRead</a><BR> <a href="DVDReadAsync.html">DVDReadAsync</a></code></p>
40<H2>Revision History</H2>
41<P>03/01/2006 Initial version.</P>
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