How can I get the tooltips of notification-area icons?

I can enumerate the applications (handle,pid,path) with icons in the notification area, and I can control the position of the icons, but I can't get the tooltip.

How can I enumerate systray icons including the tooltips?

Here is my method tested with windows xp and delphi 2010 if you are using a version of delphi wich doesn't support unicode make shure you convert the strings read to ansi

uses CommCtrl;

function TForm1.GetIconsCount: Integer;
begin
  Result := SendMessage(FindTrayToolbar, TB_BUTTONCOUNT, 0, 0);
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
    ListTips;
end;

function TForm1.FindTrayToolbar: HWND;
begin
  Result := FindWindow('Shell_TrayWND', nil);
  Result := FindWindowEx(Result, 0, 'TrayNotifyWnd', nil);
  Result := FindWindowEx(Result, 0, 'SysPager', nil);
  Result := FindWindowEx(Result, 0, 'ToolbarWindow32', nil);
end;

procedure TForm1.ListTips;
var
  dwTray: DWORD;
  wndTray: HWND;
  hTray: THandle;
  remoteTray: Pointer;
  tdata: TTBBUTTON;
  i: Integer;
  btsread:DWORD;
  str:Pchar;
begin
  wndTray := FindTrayToolbar;
  GetWindowThreadProcessId(wndTray, @dwTray);
  hTray := OpenProcess(PROCESS_ALL_ACCESS, false, dwTray);
  if hTray <> 0 then
  begin
   remoteTray := VirtualAllocEx(hTray, nil, Sizeof(tdata), MEM_COMMIT,
      PAGE_READWRITE);
    for i := 0 to GetIconsCount - 1 do
    begin
      SendMessage(FindTrayToolbar,TB_GETBUTTON,wparam(i),lparam(remotetray));
      ReadProcessMemory(hTray,remotetray,@tdata,sizeof(tdata),btsread);
      GetMem(str,255);
      ReadProcessMemory(hTray,Ptr(tdata.iString),str,255,btsread);
      ListBox1.Items.Add(str);
      end;
       end
        else ShowMessage('Could not locate tray icons');
    end;
    end.