csocket udp传输

  http://www.codeproject.com/KB/cpp/UDP_with_CAsyncSocket.aspx udp传输

 

http://www.codeproject.com/internet/SocketFileTransfer.asp 断点续传

 

BOOL CRelechSocket::CreateUDPServer(UINT iPort)
{
 return Create(iPort,SOCK_DGRAM);
}

BOOL CRelechSocket::CreateUDPClient(LPCTSTR strIPAddr, UINT iPort)
{
 strcpy(m_szIpAddr, strIPAddr);
 m_iPort = iPort;
 return Create(0,SOCK_DGRAM);
}
void CRelechSocket::SendUDPMsg(char* pMsg, UINT iLen)
{
 CSocket::SendToEx(pMsg,iLen,m_iPort,m_szIpAddr);
}