SAI的拙劣仿制：很多人永远也不会尝试的东西

MainWindow.xaml.cs

using System.Windows;
using System.Windows.Input;
using System.Windows.Media;

namespace wpfStylusDemo
{
///
/// MainWindow.xaml 的交互逻辑
///
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}

const double c_angle = 15;
private void Window_PreviewKeyDown(object sender, KeyEventArgs e)
{
if (Key.End == e.Key || Key.Delete == e.Key)
{
var rt = inkCanvas1.LayoutTransform as RotateTransform;
double angle = rt.Angle;
if (Key.Delete == e.Key)
angle -= c_angle;
else
angle += c_angle;
rt.Angle = angle % 360;
}
}
}
}