GetComputerNameEx problem

[HoM]

Hi All,

I am searching code to find out the fully qualified computername like

compi.subdomain.domain.corp

of a) the local computer and
b) a computer, which computer name (not fully qualified) I know.

I tried the following code to solve a), but it only gives me the computername, no matter which switch I use in GetComputerNameEx.

If I display the computer proberties, a domain name ( smthg.corp) is displayed and in the tcpip parameters I can also read a domain. But they are different (the latter one is location.smthg.corp).

So: what exactly is the fqdn and how do I get it?

thanks in advance,
HoM

		

		TCHAR szBuf[MAX_PATH] ={0};
		DWORD dwSize = sizeof( szBuf);
		GetComputerNameEx( ComputerNameDnsDomain, szBuf, &dwSize );
		cout << _T("ComputerNameDnsDomain                 :") << szBuf << endl;
		szBuf [0] =0;
		dwSize = sizeof( szBuf);
		GetComputerNameEx( ComputerNameDnsFullyQualified, szBuf, &dwSize);
		cout << _T("ComputerNameDnsFullyQualified         :") << szBuf << endl;
		szBuf [0] =0;
		dwSize = sizeof( szBuf);
		GetComputerNameEx( ComputerNameDnsHostname, szBuf, &dwSize );
		cout << _T("ComputerNameDnsHostname               :") << szBuf << endl;
		szBuf [0] =0;
		dwSize = sizeof( szBuf);
		GetComputerNameEx( ComputerNameNetBIOS, szBuf, &dwSize );
		cout << _T("ComputerNameNetBIOS                   :") << szBuf << endl;
		szBuf [0] =0;
		dwSize = sizeof( szBuf);
		GetComputerNameEx( ComputerNameNetBIOS, szBuf, &dwSize );
		cout << _T("ComputerNameNetBIOS                   :") << szBuf << endl;
		szBuf [0] =0;
		dwSize = sizeof( szBuf);
		GetComputerNameEx( ComputerNamePhysicalDnsDomain, szBuf, &dwSize);
		cout << _T("ComputerNamePhysicalDnsDomain         :") << szBuf << endl;
		szBuf [0] =0;
		dwSize = sizeof( szBuf);
		GetComputerNameEx( ComputerNamePhysicalDnsFullyQualified, szBuf, &dwSize);
		cout << _T("ComputerNamePhysicalDnsFullyQualified :") << szBuf << endl;
		szBuf [0] =0;
		dwSize = sizeof( szBuf);
		GetComputerNameEx( ComputerNamePhysicalDnsHostname, szBuf, &dwSize);
		cout << _T("ComputerNamePhysicalDnsHostname       :") << szBuf << endl;
		szBuf [0] =0;
		dwSize = sizeof( szBuf);
		GetComputerNameEx( ComputerNamePhysicalNetBIOS, szBuf, &dwSize);
		cout << _T("ComputerNamePhysicalNetBIOS           :") << szBuf << endl;

		getchar();