WPF 获得当前输入法语言区域

       [DllImport("user32.dll")] static extern IntPtr GetForegroundWindow();
        [DllImport("user32.dll")] static extern uint GetWindowThreadProcessId(IntPtr hwnd, IntPtr proccess);
        [DllImport("user32.dll")] static extern IntPtr GetKeyboardLayout(uint thread);

        public CultureInfo GetCurrentKeyboardLayout()
        {
            try
            {
                IntPtr foregroundWindow = GetForegroundWindow();
                uint foregroundProcess = GetWindowThreadProcessId(foregroundWindow, IntPtr.Zero);
                int keyboardLayout = GetKeyboardLayout(foregroundProcess).ToInt32() & 0xFFFF;
                return new CultureInfo(keyboardLayout);
            }
            catch (Exception)
            {
                return new CultureInfo(1033); // Assume English if something went wrong.
            }
        }

    <Grid>
        <TextBlock x:Name="CeareamearTreseretal" HorizontalAlignment="Center" VerticalAlignment="Center"></TextBlock>
    </Grid>

        private async void HairjurNalllairmo()
        {
            while (true)
            {
                await Task.Delay(100);
                CeareamearTreseretal.Text = GetCurrentKeyboardLayout().DisplayName;
            }
        }