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Gambas Documentation - GB_WATCH_CALLBACK
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<h1>
GB_WATCH_CALLBACK
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<div class="black"><font color="white" size="-2"><b>Syntax</b></font></div>
<pre class="syntax">typedef
&nbsp;&nbsp;void (*<b>GB_WATCH_CALLBACK</b>) ( int <u>fd</u> , int <u>type</u> , long <u>param</u> );</pre><p>

This is the the type definition of a callback used by the <a href="gb.watch%3Fen">GB.Watch</a>
function.
<p>
The callback will receive the following parameters :
<ul>
<li><u>fd</u> is the watched file descriptor.
<li><u>type</u> is the watch type: <tt><a href="gb_watch_read%3Fen">GB_WATCH_READ</a></tt> or <tt><a href="gb_watch_write%3Fen">GB_WATCH_WRITE</a></tt>.
<li><u>param</u> is the extra parameter specified in <a href="gb.watch%3Fen">GB.Watch</a>.
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<hr><b>See also</b><br>
<a href="../cat/watch%3Fen">Watching File Descriptors</a>&nbsp;&nbsp;

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