procedure THIListBox._work_doLoad;
var
  s, fn: string;
  F: TextFile;
  fsz: cardinal;
  hFile: THandle;
  BufIn : Array[0..65535] of Char;
begin
  fn := ReadString(_Data,_data_FileName,_prop_FileName);
  if FileExists(fn) then
  begin
    Control.Perform(WM_SETREDRAW, 0, 0);
    Control.Clear;
    hFile := CreateFile(PChar(fn), GENERIC_READ OR GENERIC_WRITE,
                        FILE_SHARE_READ or FILE_SHARE_WRITE, nil,
                        OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN, 0);
    fsz := GetFileSize(hFile, nil);
    CloseHandle(hFile);
    if fsz <> 0 then
    begin    
      AssignFile(F, fn);
      Reset(F);
      SetTextBuf (F, BufIn);    
      if fsz > MAX_PATH * 100 then Control.Perform(LB_INITSTORAGE, 0, fsz);
      while not eof(F) do
      begin
        Readln(F, s);
        Control.Perform(LB_ADDSTRING, 0, cardinal(PChar(s)));
      end;
      CloseFile(F);
    end;
    Control.Perform(WM_SETREDRAW, 1, 0);
    _hi_CreateEvent(_Data,@_event_onChange);
  end;  
end;

#pas
 while eof(F) <> true do

#pas
 While not Eof(F) do