📄 webstestvar.htm
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<title>websTestVar -- GoAhead WebServer API</title>
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<TD class=title-left><b>websTestVar</b></TD>
<TD class=title-center><b> GoAhead WebServer API</b></TD>
<TD class=title-right><B> GoAhead EMF</B></TD>
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<h2>Synopsis</h2>
<p>Test to see if a Form variable is defined</p>
<h2>Prototype</h2>
<pre>
#include "webs.h"
int <b>websTestVar</b>(webs_t wp, char_t *variable);
</pre>
<h2>Parameters</h2>
<p><table width=90%>
<TR>
<TD width=40>wp
<TD>Web server connection
handle</TD> </TR></table></p>
<h2>Description</h2>
<P>The websTestVar procedure returns TRUE if the specified
variable is defined in the Form environment table. If the variable is not
defined, the value of the default is returned.</P>
<h2>Return Value</h2>
<p> Returns 1 if the variable is defined. Otherwise 0 is
returned.</p>
<h2>Example</h2>
<pre>
if (websTestVar(wp, "Wizard") {
/* Running as a wizard */
}
</pre>
<h2>See Also</h2>
<p>
<A href="websVar.htm">Standard form variables</A>,
<A href="websSetVar.htm">websSetVar</A>,
<A href="websTestVar.htm">websTestVar</A>
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