Siliverlight 4.0视频简单实现

Siliverlight 4.0里面已经支持视频了，实现代码很简单：

 

代码

 1           private   void  Rectangle_MouseLeftButtonDown( object  sender, MouseButtonEventArgs e)
 2          {
 3              VideoCaptureDevice webcamera  =  CaptureDeviceConfiguration.GetDefaultVideoCaptureDevice();
 4               if  (CaptureDeviceConfiguration.RequestDeviceAccess())
 5              {
 6                  CaptureSource cap  =   new  CaptureSource();
 7                  cap.VideoCaptureDevice  =  webcamera;
 8                  VideoBrush videoBrush  =   new  VideoBrush();
 9                  videoBrush.SetSource(cap);
10                  videoBrush.Stretch  =  Stretch.UniformToFill;
11                  cap.Start();
12                   // 填充到矩形框中
13                   this .canmera.Fill  =  videoBrush;
14              }
15          }