silverlight - 将 Silverlight 5 Web 应用程序屏幕截图保存到磁盘

Question

我想从基于 Web 的 Silverlight 5 应用程序中截取屏幕截图并将其保存在磁盘上，我有哪些选择？我搜索了很多，但没有发现任何有用的东西。

Answer 1

这似乎捕获并将其保存到磁盘

捕获

 // create a WriteableBitmap

 WriteableBitmap bitmap = new WriteableBitmap(

     (int)this.LayoutRoot.ActualWidth,

     (int)this.LayoutRoot.ActualHeight);



 // render the visual element to the WriteableBitmap

 bitmap.Render(this.LayoutRoot, this.transform);



 // request an redraw of the bitmap

 bitmap.Invalidate();

节省

 private void ThumbnailClicked(object sender, MouseButtonEventArgs e)

 {

     // pause the capture timer

     this.timer.Stop();

     try

     {

         // locate the WriteableBitmap source for the clicked image

         WriteableBitmap bitmap = ((Image)sender).Source as WriteableBitmap;

         if (null == bitmap)

         {

             MessageBox.Show("Nothing to save");

             return;

         }



         // prompt for a location to save it

         if (this.dialog.ShowDialog() == true)

         {

             // the "using" block ensures the stream is cleaned up when we are finished

             using (Stream stream = this.dialog.OpenFile())

             {

                 // encode the stream

                 JPGUtil.EncodeJpg(bitmap, stream);

             }

         }

     }

     finally

     {

         // restart the capture timer

         this.timer.Start();

     }

 }