//IP地址框
// 此段代码：独立的获取本机IP地址和计算机名
WORD wVersionRequested;
WSADATA wsaData;
char name[255];
CString ip;
PHOSTENT hostinfo;
wVersionRequested = MAKEWORD(2, 0);

if (WSAStartup(wVersionRequested, &wsaData) == 0)
{
if(gethostname(name, sizeof(name)) == 0)
{
if( ( hostinfo = gethostbyname(name) ) != NULL)
{
ip = inet_ntoa(*(struct in_addr *)*hostinfo->h_addr_list);
}
}

WSACleanup( );
}

m_IPAddress.SetWindowText(ip); // 把IP地址(CString类型)直接显示到IP Address控件中

UpdateData(FALSE);