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14<h1 align="left">MB_RegisterFile <IMG src="../../image/NTR.gif" width="24" height="12" border="0" align=middle><IMG src="../../image/TWL.gif" width="24" height="12" border="0" align=middle></h1>
15<h2>Syntax</h2>
16
17<dl>
18  <dd>
19<CODE>#include &lt;nitro/mb.h&gt;</CODE><BR>
20  <BR>
21  <CODE>BOOL MB_RegisterFile(const MBGameRegistry *game_reg, const void *buf);</CODE><br>
22  <br>
23  </dd>
24</dl>
25<h2>Arguments</h2>
26<p>
27<TABLE border="1" width="100%">
28  <TBODY>
29    <TR>
30      <TD width="13%"><EM><STRONG>game_reg</STRONG></EM></TD>
31      <TD width="87%">Pointer to the <CODE><A href="../mb_game_registry_type.html">MBGameRegistry</A></CODE> structure where the program information to register is saved.</TD>
32    </TR>
33    <TR>
34      <TD width="13%"><EM><STRONG>buf</STRONG></EM></TD>
35      <TD width="87%">Pointer to memory storing the extracted segment information.<BR>
36	  This segment information is obtained with the <CODE><A href="MB_ReadSegment.html">MB_ReadSegment</A></CODE> function.<BR>
37	  If the function succeeds, the memory specified here is used internally until the <CODE><A href="MB_UnregisterFile.html">MB_UnregisterFile</A></CODE> function is called.</TD>
38    </TR>
39  </TBODY>
40</TABLE>
41</p>
42
43<h2>Return Values</h2>
44<p>Returns <code>TRUE</code> when the program registers correctly. Otherwise, returns <code>FALSE</code>.</p>
45
46<H2>Description</H2>
47<P>This function registers the specified program file on the download program list. The parent can simultaneously download game programs up to <code>MB_MAX_FILE</code>.<FONT color="red">The binaries that can operate on a child device during multiboot are NITRO ROMs and HYBRID ROMs. </FONT>For details, see the <A href="../overview/mb_for_twl.html">Overview</A>. <br>Before calling this function, specify the segment data by calling the <CODE><A href="MB_ReadSegment.html">MB_ReadSegment</A></CODE> function.<br><font color="#800000">When calling this function using segment data that is set for dynamic reading from an archive, note that the MB library will internally start a single thread automatically. For details, see <B>Internal Operation</B> in the <CODE><A href="MB_ReadSegment.html">MB_ReadSegment</A></CODE> function.</font><br> <br></CODE></p>
48<P><B><FONT color=red>Note:</FONT></B><BR> When a DS Single-Card Play child selects a game on the IPL, the game may be downloaded from a parent that is not selected, if a particular procedure is performed on the parent side. This problem can be prevented by setting a different GGID in the <CODE>MBGameRegistry</CODE> structure for each game registered with the <CODE><A href="./MB_RegisterFile.html">MB_RegisterFile</A></CODE> function.<BR> <!-- ????DS??????????????????($TwlSDK/docs/TechnicalNotes/AboutMultiBoot.pdf) ? <B>DS?????????????????</B> ?????????-->
49</P>
50<h2>See Also</h2>
51<p><code><A href="../mb_game_registry_type.html">MBGameRegistry</A>, <A href="MB_GetSegmentLength.html">MB_GetSegmentLength</A>, <A href="MB_ReadSegment.html">MB_ReadSegment</A>, <A href="MB_UnregisterFile.html">MB_UnregisterFile</A></code></P>
52<H2>Revision History</H2>
53<P>
542008/09/16 Added a note on restrictions on programs downloaded with the MB library. <BR>2005/02/22 Added a description of problems with DS Single-Card Play. <BR>2005/04/11 Added a note and link for task threads. <BR>2004/09/09 Added a description of the <CODE>MB_UnregisterFile</CODE> function. <BR>2004/08/09 Initial version.<br>
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