private static void OpenStartMenu(HotCorner corner, Screen screen)
        {
            // get the start button's location on the screen and press the left mouse button there.
            var startButtonLocation = TaskbarHelper.GetStartButtonLocation(screen);

            MouseHelper.PressMouseButton(MouseButton.Left, startButtonLocation);
        }
 private static void OpenMissionControl(HotCorner corner, Screen screen)
 {
     // hold down Windows, then tab, then release tab, then Windows.
     // this results in the Win+Tab key combo.
     KeyboardHelper.KeyDown(Keys.LWin);
     KeyboardHelper.KeyDown(Keys.Tab);
     KeyboardHelper.KeyUp(Keys.Tab);
     KeyboardHelper.KeyUp(Keys.LWin);
 }