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11<H1 align="left">CTRDG_IsExisting <IMG src="../image/NTR.gif" align="middle"></H1>
12<H2>Syntax</H2>
13<DL>
14  <DD>
15  <PRE><CODE>#include &lt;nitro/ctrdg.h&gt;</CODE></PRE>
16  <PRE><CODE>BOOL CTRDG_IsExisting( void );
17  </CODE></PRE>
18</DL>
19<H2>Arguments</H2>
20<P>None.</P>
21<H2>Return Values</H2>
22<P>Returns a value of TRUE if there is a Game Pak. Otherwise, it returns a value of FALSE. This function will always return a value of FALSE after the initial removal of a Game Pak.</P>
23<H2>Description</H2>
24<P>This function checks whether a Game Pak is inserted. When the bus is locked, the ARM7 will not perform automatic removal detection processing, and thus you should periodically call <code><A href="CTRDG_IsExisting.html">CTRDG_IsExisting</A></code> each game frame or other interval when the player cannot reinsert.
25</P>
26
27<H2>See Also</H2>
28<P><A href="CTRDG_Init.html"><code>CTRDG_Init</code></A>, <A href="CTRDG_IsPulledOut.html"><code>CTRDG_IsPulledOut</code></A><BR></P>
29<H2>Revision History</H2>
30<P>
312005/04/12 Added description of cartridge bus lock.<br /> 2004/09/15 Initial version.                             </P>
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