获取IP地址并返回Cstring
CString CAddStdDlg::GetLocalIP()
{
WSADATA wsaData;
int err = WSAStartup(MAKEWORD(2, 0), &wsaData);
if (err != 0)
{
return _T("");
}
char szHostName[MAX_PATH] = { 0 };
int nRetCode;
nRetCode = gethostname(szHostName, sizeof(szHostName));
char* lpLocalIP;
PHOSTENT hostinfo;
if (nRetCode != 0)
{
WSACleanup();
return _T("");
}
hostinfo = gethostbyname(szHostName);
lpLocalIP = inet_ntoa(*(struct in_addr*) * hostinfo->h_addr_list);
CString aa(lpLocalIP);
WSACleanup();
return aa;
}
void CMyDlg::GetHostAddress(CString &strIPAddr)
{
char HostName[100];
gethostname(HostName, sizeof(HostName));// 获得本机主机名.
hostent* hn;
hn = gethostbyname(HostName);//根据本机主机名得到本机ip
strIPAddr=inet_ntoa(*(struct in_addr *)hn->h_addr_list[0]);//把ip换成字符串形式
}
//摘自 https://blog.csdn.net/imxiangzi/article/details/38264563
代码没有问题,在使用的时候 报错
warning C4996: 'gethostbyname': Use getaddrinfo() or GetAddrInfoW() instead or define _WINSOCK_DEPRECATED_NO_WARNINGS to disable deprecated API
这是因为新版本VS不支援该函数,需要修改下图中SDL检查 为 “否”
