如何在WPF中获取鼠标移动方向(C#)

<Canvas x:Name="canvas" MouseMove="canvas_MouseMove">
    <!-- 其他控件 -->
</Canvas>

private void canvas_MouseMove(object sender, MouseEventArgs e)
{
    Point currentPosition = e.GetPosition(canvas);
    Point previousPosition;

    // 获取上一次鼠标位置
    if (canvas.Children.Count > 0)
    {
        UIElement element = canvas.Children[canvas.Children.Count - 1];
        previousPosition = new Point(Canvas.GetLeft(element), Canvas.GetTop(element));
    }
    else
    {
        previousPosition = currentPosition;
    }

    // 计算鼠标移动方向
    double deltaX = currentPosition.X - previousPosition.X;
    double deltaY = currentPosition.Y - previousPosition.Y;

    // 根据鼠标移动方向进行相应操作
    if (Math.Abs(deltaX) > Math.Abs(deltaY))
    {
        if (deltaX > 0)
        {
            // 鼠标向右移动
            // 进行相应操作
        }
        else
        {
            // 鼠标向左移动
            // 进行相应操作
        }
    }
    else
    {
        if (deltaY > 0)
        {
            // 鼠标向下移动
            // 进行相应操作
        }
        else
        {
            // 鼠标向上移动
            // 进行相应操作
        }
    }

    // 在Canvas中显示鼠标移动方向的结果
    TextBlock directionText = new TextBlock();
    directionText.Text = $"鼠标移动方向：{(deltaX > 0 ? "右" : "左")}{(deltaY > 0 ? "下" : "上")}";
    Canvas.SetLeft(directionText, currentPosition.X);
    Canvas.SetTop(directionText, currentPosition.Y);
    canvas.Children.Add(directionText);
}