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9<title>WPADButtonUp</title>
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13
14<h1>WPADButtonUp</h1>
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16
17<h2>C Specification</h2>
18
19<dl>
20  <dd><pre><code>#include &lt;revolution/wpad.h&gt;</code></pre>
21  </dd>
22  <dd><pre><CODE>#define WPADButtonUp( buttonLast, button )     \
23    ( (u16) (((buttonLast) ^ (button)) & (buttonLast)) )
24</CODE></pre>
25  </dd>
26</dl>
27
28<h2>Arguments</h2>
29<TABLE border="1" >
30  <tr>
31<TD width="120" bgcolor="#ffffe8"><code><b><i>buttonLast</i></b></code></TD>
32<TD>The previous button status.</TD>
33    </tr>
34  <tr>
35<TD width="120" bgcolor="#ffffe8"><code><b><i>button</i></b></code></TD>
36<TD>The most recent button status.</TD>
37    </tr>
38</TABLE>
39<h2>Return Values</h2>
40
41<p>The logical sum of pad button bits for standard controller buttons just released.</p>
42<H2>Description</H2>
43<P>This function verifies whether button(s) have been released.</P>
44
45<h2>See Also</h2>
46<p>
47<A href="./toc.html" target="contents">WPAD Functions</A><br>
48</p>
49
50<H2>Revision History</H2>
51<P>
522005/08/04 Modified C Specification.<br>2005/08/01 Initial version.<BR>
53</P>
54<hr>
55<P>CONFIDENTIAL</p>
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