Title: How to get the owner of a file
// When you create a file or directory, you become the owner of it.
// With GetFileOwner you get the owner of a file.
function GetFileOwner(FileName: string;
var Domain, Username: string): Boolean;
var
SecDescr: PSecurityDescriptor;
SizeNeeded, SizeNeeded2: DWORD;
OwnerSID: PSID;
OwnerDefault: BOOL;
OwnerName, DomainName: PChar;
OwnerType: SID_NAME_USE;
begin
GetFileOwner := False;
GetMem(SecDescr, 1024);
GetMem(OwnerSID, SizeOf(PSID));
GetMem(OwnerName, 1024);
GetMem(DomainName, 1024);
try
if not GetFileSecurity(PChar(FileName),
OWNER_SECURITY_INFORMATION,
SecDescr, 1024, SizeNeeded) then
Exit;
if not GetSecurityDescriptorOwner(SecDescr,
OwnerSID, OwnerDefault) then
Exit;
SizeNeeded := 1024;
SizeNeeded2 := 1024;
if not LookupAccountSID(nil, OwnerSID, OwnerName,
SizeNeeded, DomainName, SizeNeeded2, OwnerType) then
Exit;
Domain := DomainName;
Username := OwnerName;
finally
FreeMem(SecDescr);
FreeMem(OwnerName);
FreeMem(DomainName);
end;
GetFileOwner := True;
end;
procedure TForm1.Button1Click(Sender: TObject);
var
Domain, Username: string;
begin
GetFileOwner('YourFile.xyz', domain, username);
ShowMessage(username + '@' + domain);
end;
// Note: Only works unter NT.