Get the last access from a file

// Get the last access from a file

{1.}

function GetFileLastAccessTime(sFileName: string): TDateTime;
var
  ffd: TWin32FindData;
  dft: DWORD;
  lft: TFileTime;
  h:   THandle;
begin
  //
  // get file information
  h := Windows.FindFirstFile(PChar(sFileName), ffd);
  if (INVALID_HANDLE_VALUE <> h) then
  begin
    //
    // we're looking for just one file,
    // so close our "find"
    Windows.FindClose(h);
    //
    // convert the FILETIME to
    // local FILETIME
    FileTimeToLocalFileTime(ffd.ftLastAccessTime, lft);
    //
    // convert FILETIME to
    // DOS time
    FileTimeToDosDateTime(lft, LongRec(dft).Hi, LongRec(dft).Lo);
    //
    // finally, convert DOS time to
    // TDateTime for use in Delphi's
    // native date/time functions
    Result := FileDateToDateTime(dft);
  end;
end;


{********************************************************************}

{2.}

function GetFileTimes(const FileName: string; var Created: TDateTime;
var Accessed: TDateTime; var Modified: TDateTime): Boolean;
var
  h: THandle;
  Info1, Info2, Info3: TFileTime;
  SysTimeStruct: SYSTEMTIME;
  TimeZoneInfo: TTimeZoneInformation;
  Bias: Double;
begin
  Result := False;
  Bias   := 0;
  h      := FileOpen(FileName, fmOpenRead or fmShareDenyNone);
  if h > 0 then
  begin
    try
      if GetTimeZoneInformation(TimeZoneInfo) <> $FFFFFFFF then
        Bias := TimeZoneInfo.Bias / 1440; // 60x24
      GetFileTime(h, @Info1, @Info2, @Info3);
      if FileTimeToSystemTime(Info1, SysTimeStruct) then
        Created := SystemTimeToDateTime(SysTimeStruct) - Bias;
      if FileTimeToSystemTime(Info2, SysTimeStruct) then
        Accessed := SystemTimeToDateTime(SysTimeStruct) - Bias;
      if FileTimeToSystemTime(Info3, SysTimeStruct) then
        Modified := SystemTimeToDateTime(SysTimeStruct) - Bias;
      Result := True;
    finally
      FileClose(h);
    end;
  end;
end;


procedure TForm1.Button1Click(Sender: TObject);
var
  Date1, Date2, Date3: TDateTime;
begin
  if GetFileTimes(Edit1.Text, Date1, Date2, Date3) then
  begin
    ShowMessage('Created: ' + DateTimeToStr(Date1));
    ShowMessage('Last Accessed: ' + DateTimeToStr(Date2));
    ShowMessage('Last Modified: ' + DateTimeToStr(Date3));
  end;
end;