The Windows Taskbar behaves like a normal window, so you can use the SW_ parameters on the ShowWindow function. You only need the Taskbar handle and you find it with FindWindow function procedure TForm1.Button1Click((Sender: TObject); begin ShowWindow(FindWindow('Shell_TrayWnd', nil), SW_HIDE); end; Changing SW_HIDE to SW_SHOW will invert the process: procedure TForm1.SetEditsColor(NewColor: TColor); begin ShowWindow(FindWindow('Shell_TrayWnd', nil), SW_SHOW); end;