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9<title>GXSetBreakPtCallback</title>
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14<h1 align="left">GXSetBreakPtCallback</h1>
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17<h2>C Specification</h2>
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20<dd><pre>#include &lt;revolution/gx.h&gt;
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22typedef void (*GXBreakPtCallback)(void);
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24GXBreakPtCallback GXSetBreakPtCallback( GXBreakPtCallback cb );</pre>
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28<h2>Arguments</h2>
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32<TD width="120" bgcolor="#ffffe8"><code><strong><em>cb</em></strong></code></TD>
33<TD width="520">Function to invoke when a break point is encountered. A NULL value will indicate that no callback will be invoked. </TD>
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38<h2>Return Values</h2>
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40<p>This function returns a pointer to the previously-set callback function.</p>
41<H2>Description</H2>
42<P>This function registers <code><strong><em>cb</em></strong></code> as a function to invoke when a break point is encountered.&nbsp;See <a href="GXEnableBreakPt.html"><code>GXEnableBreakPt</code></a> for an explanation of the FIFO break point feature.&nbsp;The callback will run with interrupts disabled and should terminate as quickly as possible.</P>
43<P>You can disable callbacks by setting a NULL value for <code><strong><em>cb</em></strong></code>.</P>
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48<h2>See Also</h2>
49<P><A href="GXEnableBreakPt.html"><CODE>GXEnableBreakPt</CODE></A></P>
50<H2>Revision History</H2>
51<P>03/01/2006 Initial version.</P>
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