获取哪些键正在被按下

[DllImport("user32.dll", EntryPoint = "keybd_event")]
        private static extern void keybd_event(
            byte bVk,    //虚拟键值
            byte bScan,// 一般为0
            int dwFlags,  //这里是整数类型  0 为按下，2为释放
            int dwExtraInfo  //这里是整数类型 一般情况下设成为 0
        );

        [DllImport("user32.dll", EntryPoint = "GetKeyboardState", SetLastError = true)]
        private static extern bool NativeGetKeyboardState([Out] byte[] keyStates);

        public static byte GetVirtualKeyCode(Keys key)
        {
            int value = (int)key;
            return (byte)(value & 0xFF);
        }

        private static List<string> GetAllPressedKey()
        {
            var array = new byte[256];
            NativeGetKeyboardState(array);

            var keyNames = Enum.GetNames(typeof(Keys)).ToList();
            var keysList = new List<string>();
            foreach (var keyName in keyNames)
            {
                var key = (Keys)Enum.Parse(typeof(Keys), keyName);
                var code = GetVirtualKeyCode(key);
                if ((array[code] & 0x80) != 0)
                {
                    keysList.Add(keyName);
                }
            }

            return keysList;
        }

        private static bool CheckAnyKeyPressedAndRelease()
        {
            var array = new byte[256];
            NativeGetKeyboardState(array);

            var keyNames = Enum.GetNames(typeof(Keys)).ToList();
            var keysList = new List<string>();
            foreach (var keyName in keyNames)
            {
                var key = (Keys)Enum.Parse(typeof(Keys), keyName);
                keybd_event((byte)key, 0, 2, 0);
            }
            return keysList.Count > 0;
        }