const NameUnknown Unknown name type NameFullyQualifiedDN Fully qualifi

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//************************************************
const
NameUnknown = 0; // Unknown name type.
NameFullyQualifiedDN = 1; // Fully qualified distinguished name
NameSamCompatible = 2; // Windows NT® 4.0 account name
NameDisplay = 3; // A "friendly" display name
NameUniqueId = 6; // GUID string that the IIDFromString function returns
NameCanonical = 7; // Complete canonical name
NameUserPrincipal = 8; // User principal name
NameCanonicalEx = 9;
NameServicePrincipal = 10; // Generalized service principal name
DNSDomainName = 11; // DNS domain name, plus the user name
procedure GetUserNameEx(NameFormat: DWORD;
lpNameBuffer: LPSTR; nSize: PULONG); stdcall;
external 'secur32.dll' Name 'GetUserNameExA';
function LoggedOnUserNameEx(fFormat: DWORD): string;
var
UserName: array[0..250] of char;
Size: DWORD;
begin
Size := 250;
GetUserNameEx(fFormat, @UserName, @Size);
Result := UserName;
end;
//************************************************