windows phone画板程序

          前几天想要这样一个程序，没找到，今天上网偶然发现了，转载过来。

　　　　

<Grid>  
    <InkPresenter x:Name="MyPresenter"   
                  HorizontalAlignment="Left"  
                  VerticalAlignment="Top"   
                  MouseLeftButtonDown="MyPresenter_MouseLeftButtonDown"  
                  LostMouseCapture="MyPresenter_LostMouseCapture"  
                  MouseMove="MyPresenter_MouseMove"  
                  Background="Transparent"  
                  Opacity="1" Width="480" Height="750" />  
</Grid>  

      

[csharp] view plaincopyprint?
using System;  
using System.Collections.Generic;  
using System.Linq;  
using System.Net;  
using System.Windows;  
using System.Windows.Controls;  
using System.Windows.Documents;  
using System.Windows.Input;  
using System.Windows.Media;  
using System.Windows.Media.Animation;  
using System.Windows.Shapes;  
using Microsoft.Phone.Controls;  
// 引入以下命名空间。  
using System.Windows.Ink;  
  
namespace InkPresentSample  
{  
    public partial class MainPage : PhoneApplicationPage  
    {  
        Stroke CurrentStroke = null;  
        // 构造函数  
        public MainPage()  
        {  
            InitializeComponent();  
  
            // 设置剪辑，以便收集墨迹  
            RectangleGeometry rg = new RectangleGeometry();  
            // 为了使范围准确，应使用控件的最终呈现高度。  
            rg.Rect = new Rect(0, 0, MyPresenter.ActualWidth, MyPresenter.ActualHeight);  
            MyPresenter.Clip = rg;  
        }  
  
        private void MyPresenter_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)  
        {  
            // 当我们点击时获捉鼠标光标  
            MyPresenter.CaptureMouse();  
            // 收集当前的光标所在的位置的点  
            StylusPointCollection sc = new StylusPointCollection();  
            sc.Add(e.StylusDevice.GetStylusPoints(MyPresenter));  
            CurrentStroke = new Stroke(sc);  
            // 设置笔触的颜色，大小  
            CurrentStroke.DrawingAttributes.Color = Colors.Yellow;  
            CurrentStroke.DrawingAttributes.Width = 8;  
            CurrentStroke.DrawingAttributes.Height = 8;  
            // 把新的笔触添加到集合中  
            MyPresenter.Strokes.Add(CurrentStroke);  
        }  
  
        private void MyPresenter_LostMouseCapture(object sender, MouseEventArgs e)  
        {  
            // 当释放鼠标时，也同时释放笔触变量的引用  
            CurrentStroke = null;  
        }  
  
        private void MyPresenter_MouseMove(object sender, MouseEventArgs e)  
        {  
            if (CurrentStroke != null)  
            {  
                // 每移动一次鼠标，都收集对应的点。  
                CurrentStroke.StylusPoints.Add(e.StylusDevice.GetStylusPoints(MyPresenter));  
            }  
        }  
    }  
}  

我试了运行结果是正确 的，有需要的试试。