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14<h1 align="left">GX_TrySetBankForSubBG <img src="../../image/NTR.gif"align="middle"><img src="../../image/TWL.gif" align="middle"></H1>
15<H2>Syntax</H2>
16
17<dl>
18  <dd>
19<CODE>#include &lt;nitro/gx/gx_vramcnt.h&gt;</CODE><BR>
20  <BR>
21  <CODE>BOOL GX_TrySetBankForSubBG(GXVRamSubBG bg);</CODE></dd>
22</dl><h2>Arguments</h2>
23
24<table border="1" width="100%">
25  <tr>
26    <td width="13%"><em><strong><font face="Courier New"><em><strong><code>bg</code></strong></em>&nbsp;&nbsp;</font></strong></em></td>
27    <td width="87%">Specifies a VRAM bank to allocate to the sub 2D Engine's BG</td>
28  </tr>
29  </table>
30<h2>Return Values</h2>
31<p>
32Returns TRUE if the VRAM bank is allocated normally. Returns FALSE if the VRAM bank to be allocated is locked by another library.
33</p>
34<H2>Description</H2>
35<P>Attempts to allocate a VRAM bank to the sub 2D engine BG. If the specified VRAM bank is either disabled or allocated to LCDC, that VRAM bank is allocated to the sub 2D Engine BG. The allocation will fail if the designated VRAM bank is exclusion-locked by another library.
36</P>
37<TABLE border="1">
38  <TBODY>
39    <TR>
40      <TD><CODE>GX_VRAM_SUB_BG_NONE</CODE></TD>
41      <TD>VRAM bank is not allocated to BG.</TD>
42    </TR>
43    <TR>
44      <TD><CODE>GX_VRAM_SUB_BG_128_C</CODE></TD>
45      <TD>128 KB are reserved in BG. VRAM-C is allocated.</TD>
46    </TR>
47    <TR>
48      <TD><CODE>GX_VRAM_SUB_BG_32_H</CODE></TD>
49      <TD>32 KB are reserved in BG. VRAM-H is allocated.</TD>
50    </TR>
51    <TR>
52      <TD><CODE>GX_VRAM_SUB_BG_48_HI</CODE></TD>
53      <TD>48 KB are reserved in BG. VRAM-H and -I are allocated.</TD>
54    </TR>
55  </TBODY>
56</TABLE>
57<P>The following is the type definition for <CODE>GXVRamSubBG</CODE> types.</P>
58<PRE><CODE>typedef enum
59{
60    GX_VRAM_SUB_BG_NONE = 0x0000,
61    GX_VRAM_SUB_BG_128_C = GX_VRAM_C,
62    GX_VRAM_SUB_BG_32_H = GX_VRAM_H,
63    GX_VRAM_SUB_BG_48_HI = GX_VRAM_H | GX_VRAM_I
64}
65GXVRamSubBG;</PRE>
66<h2>See Also</h2>
67<P><code><A href="GX_SetBankForSubBG.html">GX_SetBankForSubBG</A>, <A href="GX_GetBankForSubBG.html">GX_GetBankForSubBG</A>, <A href="GX_ResetBankForSubBG.html">GX_ResetBankForSubBG</A>, <A href="GX_DisableBankForSubBG.html">GX_DisableBankForSubBG</A>, <A href="GX_GetSizeOfSubBG.html">GX_GetSizeOfSubBG</A></code></P>
68<H2>Revision History</H2>
69<P>2005/02/15 Initial version.</P>
70<hr><p>CONFIDENTIAL</p></body>
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