C / C++ / MFC

HANDLE _hMibSrv;  
MIB_OPAQUE_QUERY  MibOpaqueQuery; 
PMIB_OPAQUE_INFO  pMibOpaqueInfo = NULL; 
DWORD  dwInSize, dwOutSize, dwResult; 
PMIB_IFTABLE  pIntfTable; 
MibOpaqueQuery.dwVarId = IF_TABLE; 
dwInSize = sizeof( MIB_OPAQUE_QUERY ); 
dwOutSize = 0; 
if(MprAdminMIBServerConnect(NULL,&_hMibSrv)!= NO_ERROR)
{
	cout << "MprAdminMIBServerConnect failed\r\n";
	return -1;
}
dwResult = MprAdminMIBEntryGet ( _hMibSrv,PID_IP,IPRTRMGR_PID, 
(PVOID)&MibOpaqueQuery,dwInSize, 
(PVOID *)&pMibOpaqueInfo,&dwOutSize );

if ( dwResult != NO_ERROR )
{			
	switch(dwResult)
	{
	case ERROR_ACCESS_DENIED:
		cout << "1`\r\n";
		break;
//	case ERROR_CANNOT_COMPLETE:
//		cout << "2`\r\n";
//		break;
	case ERROR_UNKNOWN_PROTOCOL_ID:
		cout << "3`\r\n";
		break;
	case ERROR_NOT_ENOUGH_MEMORY:
		cout << "4`\r\n";
		break;
	}
nRetCode=1;    
}

MIB_IPADDRTABLE m_MIB_IPADDRTABLE;
retval=GetIpAddrTable(&m_MIB_IPADDRTABLE,
	(PULONG)sizeof MIB_IPADDRTABLE, false);
if(retval==NO_ERROR)
{
cout << "Num of entries is " << m_MIB_IPADDRTABLE.dwNumEntries << "\r\n";
}
else
{
cout << "Function failed\r\n" ;
}