//鼠标事件源类型

    public enum MouseEventSource

    {

        Mouse,

        Pen,

        Touch

    }

    /// <summary>

    /// MainWindow.xaml 的交互逻辑

    /// </summary>

    public partial class MainWindow : Window

    {

        public MainWindow()

        {

            InitializeComponent();

            inkcv.PreviewMouseDown += Inkcv_PreviewMouseDown;

            inkcv.PreviewMouseMove += Inkcv_PreviewMouseMove;

            inkcv.PreviewMouseUp += Inkcv_PreviewMouseUp;

        }

        private void Inkcv_PreviewMouseUp(object sender, MouseButtonEventArgs e)

        {

            var s = GetMouseEventSource();

            result.Text = "mouse up,Source: "+ s.ToString();

        }

        private void Inkcv_PreviewMouseMove(object sender, MouseEventArgs e)

        {

            if (e.LeftButton==MouseButtonState.Pressed)

            {

                result.Text ="mouse move,Source: "+ GetMouseEventSource().ToString();

            }          

        }

        private void Inkcv_PreviewMouseDown(object sender, MouseButtonEventArgs e)

        {

            var s = GetMouseEventSource();

            result.Text = "mouse previewdown,Source: "+ s.ToString();

       }

        [DllImport("user32.dll")]

        private static extern uint GetMessageExtraInfo();

        public static MouseEventSource GetMouseEventSource()

        {

            uint extra = GetMessageExtraInfo();

            bool isTouchOrPen = ((extra & 0xffffff00) == 0xff515700);

            if (!isTouchOrPen)

                return MouseEventSource.Mouse;

            bool isTouch = ((extra & 0x00000080) == 0x00000080);

            return isTouch ? MouseEventSource.Touch : MouseEventSource.Pen;

        }

    }