📄 ejsetglobalfunction.htm
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<title>ejSetGlobalFunction -- GoAhead Embedded JavaScript</title>
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<TD class=title-left>ejSetGlobalFunction</TD>
<TD class=title-center><b>GoAhead JavaScript API</b></TD>
<TD class=title-right><B>GoAhead EMF</B></TD>
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<h2>Synopsis</h2>
<p>Define a JavaScript global function.</p>
<h2>Prototype</h2>
<pre>
#include "ej.h"
int <b>ejSetGlobalFunction</b>(int eid, char_t *name,
int (*fn)(int eid, void *handle, int argc, char_t **argv));
</pre>
<h2>Parameters</h2>
<p><table width=90%>
<TR>
<TD width=40>eid
<TD>JavaScript interpreter handle
<TR>
<TD width=40>name
<TD> Name of the function to define
<TR>
<TD width=40>fn
<TD>C function to
invoke</TD> </TR></table></p>
<h2>Description</h2>
<P>The ejSetGlobalFunction procedure defines a JavaScript
function. When the function named by <i>name</i> is called,
the function defined by <i>fn</i> is called.</p>
<p> </p>
<P>When <i>fn</i> is called, the JavaScript parameters are
passed in via <i>argc</i> and <i>argv</i> as a list of
pointers to arguments. Use <A href="ejArgs.htm">ejArgs</A>
to parse the arguments array.</p>
<h2>Return Value</h2>
<p>Returns 0 if successful. Returns -1 on errors.</p>
<h2>Example</h2>
<pre>char_t *emsg;
int fn(int eid, void *handle, int argc, char_t **argv);
ejSetGlobalFunction(int eid, "myfunc", myfunc);
</pre>
<h2>See Also</h2>
<p>
<A href="../ws/ejscript.htm">JavaScript</A>,
<A href="../ws/asp.htm">Active Server Pages</A>,
<A href="ejOpen.htm">ejOpen</A>,
<A href="ejSetVar.htm">ejSetVar</A>
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