测试主机端口

BOOL CenumhostsDlg::TestConnection(CString IP, UINT nPort){ CSocket* pSocket; pSocket=new CSocket(); ASSERT(pSocket); if(!pSocket->Create()) {  delete pSocket;  pSocket=NULL;  return false;

 }

 while(!pSocket->Connect(IP,nPort)) {  delete pSocket;  pSocket=NULL;  return false; }

 pSocket->Close(); delete pSocket;  return true;}