1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 2<html> 3 4<head> 5<META http-equiv="Content-Type" content="text/html; charset=windows-1252"> 6<META http-equiv="Content-Style-Type" content="text/css"> 7<META name="GENERATOR" content="IBM WebSphere Studio Homepage Builder Version 7.0.0.0 for Windows"> 8<title>DWC_SetUserPingCallback</title> 9<LINK rel="stylesheet" href="../css/nitro.css" type="text/css"> 10</head> 11 12<body> 13<a name="dwc__transport_8h_190e3f1fd0e1fcba45e3ced4b65c77a6a"></a> 14<h1 align="left">DWC_SetUserPingCallback</h1> 15<h2>Syntax</h2> 16 17<dl> 18 <dd> 19<CODE>#include <dwc.h></CODE><BR> 20 <BR> 21 <PRE><CODE>BOOL <a href=DWC_SetUserPingCallback.html#dwc__transport_8h_190e3f1fd0e1fcba45e3ced4b65c77a6a>DWC_SetUserPingCallback</a>(<a href=DWCUserPingCallback.html#dwc__transport_8h_1e48ea9b6250f0a5035139182b0748828>DWCUserPingCallback</a> callback, 22 void *param);</CODE></PRE></dd> 23</dl> 24 25<h2>Arguments</h2> 26 27<TABLE border="1" width="100%"> 28 <TBODY> 29 30 <TR> 31<TD width="13%"><EM><STRONG>callback</STRONG></EM></TD> 32<TD width="87%">Pointer to the ping callback function.</TD> 33 </TR> 34 35 <TR> 36<TD width="13%"><EM><STRONG>param</STRONG></EM></TD> 37<TD width="87%">Parameter for the ping callback.</TD> 38 </TR> 39 40 </TBODY> 41</TABLE> 42 43<h2>Return Values</h2> 44 45<TABLE border="1" width="100%"> 46 <TBODY> 47 48 <TR> 49<TD width="13%"><EM><STRONG>TRUE</STRONG></EM></TD> 50<TD width="87%">The configuration of the callback function was successful.</TD> 51 </TR> 52 53 <TR> 54<TD width="13%"><EM><STRONG>FALSE</STRONG></EM></TD> 55<TD width="87%">The configuration failed because the FriendsMatch Library was not running.</TD> 56 </TR> 57 58 </TBODY> 59</TABLE> 60 61<H2>Description</H2> 62<p>This function configures the ping callback to measure the roundtrip communication time with a connected host. This function starts measuring the roundtrip communication time with a connected host using the <a href="DWC_Ping.html"><CODE>DWC_Ping</CODE></a> function and notifies the ping callback function of the measurement result.</p> 63 64<H2>Revision History</H2> 65<DL> 66 67<DT><para>2.0.0</DT> 68<DD>Specification change.</DD> 69 70</DL> 71<hr><p>CONFIDENTIAL</p></body> 72</html> 73