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<title>OpenSLP Programmers Guide - SLPSrvTypeCallback</title>
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<h2>SLPSrvTypeCallback<br />
<span id="breadcrumbs"><a href="index.html">OpenSLP Programmer's Guide</a> » Service Location Functions » <a href="SLPSrvTypeCallback.html">SLPSrvTypeCallback</a></span></h2>
<h3>Declaration</h3>
<pre>#include <slp.h>
typedef <a href="SLPTypes.html#SLPBoolean">SLPBoolean</a> SLPSrvTypeCallback(
<a href="SLPTypes.html#SLPHandle">SLPHandle</a> <a href="#hslp">hslp</a>,
const char* <a href="#srvtypes">srvtypes</a>,
<a href="SLPTypes.html#SLPError">SLPError</a> <a href="#errcode">errcode</a>,
void* <a href="#cookie">cookie</a>);
</pre>
<h3>Description</h3>
<p>The <tt>SLPSrvTypeCallback</tt> type is the type of the
callback function passed as a parameter to the
<tt><a href="SLPFindSrvTypes.html">SLPFindSrvTypes()</a></tt>
function. If the hslp parameter was opened asynchronously,
the results returned through the callback may be
uncollated. If the hslp handle parameter was opened
synchronously, then the results will be collated to remove
duplicates.</p>
<h3>Parameters</h3>
<table BORDER CELLPADDING=5 NOSAVE >
<tr VALIGN=TOP NOSAVE>
<td NOSAVE><a NAME="hslp"></a><tt>hslp</tt></td>
<td NOSAVE>The language specific <tt>SLPHandle</tt> that was passed in to the <tt>
SLPFindSrvTypes()</tt> function.</td>
</tr>
<tr>
<td><a NAME="srvtypes"></a><tt>srvtypes</tt></td>
<td>Pointer to a comma separated list of service types. See <a href="Syntax.html#Service Type">
Syntax</a>
for more information on service type syntax. </td>
</tr>
<tr VALIGN=TOP NOSAVE>
<td><a NAME="errcode"></a><tt>errcode</tt></td>
<td NOSAVE>An error code indicating if an error occurred during the operation.
The callback should check this error code before processing the parameters. </td>
</tr>
<tr VALIGN=TOP NOSAVE>
<td NOSAVE><a NAME="cookie"></a><tt>cookie</tt></td>
<td NOSAVE>The same cookie that was passed as a parameter to the <tt>
SLPFindSrvTypes()</tt>
call</td>
</tr>
</table>
<h3>Returns</h3>
<p>The callback should return <tt>SLP_TRUE</tt> if more data is
desired. The callback may continue to return <tt>SLP_TRUE</tt>
until it is called with an errcode of <tt>SLP_LAST_CALL</tt>.
If no more data is requested the callback should return
<tt>SLP_FALSE</tt>.</p>
<h3>Status</h3>
<table CELLPADDING=5 NOSAVE >
<tr VALIGN=TOP NOSAVE>
<td NOSAVE>OpenSLP 0.6.0</td>
<td NOSAVE>SLPSrvTyperCallback functions are not called because
SLPFindSrvTypes() is not implemented</td>
</tr>
</table>
<br />
<h3>See Also</h3>
<p><a href="Syntax.html">Syntax</a>,
<a href="Callbacks.html">Callbacks</a>,
<a href="SLPFindSrvTypes.html">SLPFindSrvTypes()</a></p>
<p id="breadcrumbs0">Prepared by: <a href="http://www.calderasystems.com">Caldera Systems Inc</a><br />
Maintained by: <a href="http://www.openslp.org/">openslp.org</a></p>
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