public static bool IsModifierKeysSet(this List<Keys> pressedKeys) =>
pressedKeys != null &&
(pressedKeys.Contains(Keys.LControlKey)
|| pressedKeys.Contains(Keys.RControlKey)
|| pressedKeys.Contains(Keys.LMenu)
|| pressedKeys.Contains(Keys.RMenu)
|| pressedKeys.Contains(Keys.LWin)
|| pressedKeys.Contains(Keys.RWin)
|| pressedKeys.Contains(Keys.Control)
|| pressedKeys.Contains(Keys.Alt));