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WINDOWS - ESCONDER O RELOGIO DA BARRA DE TAREFAS

function ShowTrayClock(bValue: Boolean): Boolean;
var
  TrayWnd, TrayNWnd, ClockWnd: HWND;
begin
  TrayWnd := FindWindow('Shell_TrayWnd', nil);
  TrayNWnd := FindWindowEx(TrayWnd, 0, 'TrayNotifyWnd', nil);
  ClockWnd := FindWindowEx(TrayNWnd, 0, 'TrayClockWClass', nil);
  Result := IsWindow(ClockWnd);
  if Result then
  begin
    ShowWindow(ClockWnd, Ord(bValue));
    PostMessage(ClockWnd, WM_PAINT, 0, 0);
  end;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  ShowTrayClock(Boolean(0));
end;