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<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
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<title>OpenSLP Programmers Guide - SLPSrvTypeCallback</title>
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<h2>
SLPSrvTypeCallback</h2>
<hr WIDTH="100%">
<h3>
<tt>Declaration</tt></h3>
<tt>typedef <a href="/SLPTypes.html#SLPBoolean">SLPBoolean</a> SLPSrvTypeCallback(
<a href="/SLPTypes.html#SLPHandle">SLPHandle</a>
<a href="#hslp">hslp</a>,</tt>
<br><tt>
const char* <a href="#srvtypes">srvtypes</a>,</tt>
<br><tt>
<a href="/SLPTypes.html#SLPError">SLPError</a> <a href="#errcode">errcode</a>,</tt>
<br><tt>
void* <a href="#cookie">cookie</a> )</tt>
<h3>
Description</h3>
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.
<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>
<caption ALIGN=BOTTOM> </caption>
</table>
<h3>
Returns</h3>
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>.
<br>
<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>
<h3>
See Also</h3>
<a href="Syntax.html">Syntax</a>,
<a href="Callbacks.html">Callbacks</a>
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