将Silverlight WriteableBitmap转换为ASP.Net Bitmap [英] Convert Silverlight WriteableBitmap to ASP.Net Bitmap

问题描述

朋友们，我的应用程序使用网络摄像头拍摄快照并将其保存在本地文件夹中。所以我使用以下代码转换我的Silverlight图像并通过Web服务发送它。我的网络服务的名称是ImageService。

hi friends, my application take snapshots using webcam and save them in a local folder. so i''m using following code to convert my Silverlight Image and send it through the Web Service. name of my web service is ImageService.

ImageServiceSoapClient client = new ImageServiceSoapClient();

private void source_CaptureImageCompleted(object sender, CaptureImageCompletedEventArgs e)
        {            
            WriteableBitmap bmp = new WriteableBitmap(320, 240);
            bmp = e.Result;
            byte[] buffer = bmp.ToByteArray();            
                     
            client.SaveImageToLocalAsync(buffer, txtUserName.Text);            
        }

这是我的服务器端代码..

and this is my server side code..

[WebMethod]
 public string SaveImageToLocal(byte[] buffer,string name)
 {

     try
     {
         Bitmap bmp = new Bitmap(320, 240);
         using (MemoryStream stream = new MemoryStream(buffer))
         {
             bmp = new Bitmap(stream);
             string saveString = GetFolder() + name + ".jpg";
             bmp.Save(saveString, System.Drawing.Imaging.ImageFormat.Jpeg);
         }

         return "Servers says : Saved..!!";
     }
     catch (Exception ex)
     {
         return "Server says : " + ex.Message;
     }
 }

所以当我运行这个应用程序，我得到一个例外说服务器说：参数无效 ..



有谁能告诉我什么这段代码错了吗？我花了几周时间来解决这个问题。请支持我!! !!谢谢..

so when i run this application, i''m getting an exception saying "Server says : Parameter is not valid"..

can anyone please tell me what''s wrong with this code? i spent weeks to solve this problem. please back me up..!! thanks..

推荐答案

请看我对这个问题的评论。



没有这样的事情ASP.NET位图。您甚至可以在ASP.NET中使用WPF位图，为什么不呢？ ASP.NET是一种服务器端技术，因此，没有.NET UI，因此您可以使用任何图形库。






对于转换，请参阅此代码示例：

http://snipplr.com/view/63090/ [ ^ ]。

-SA

Please see my comment to the question.

There is no such thing as ASP.NET bitmap. You can use WPF bitmaps even in ASP.NET, why not? ASP.NET is a server-side technology, so, there is no .NET UI, and therefore you can use any graphics library.



For the conversion, see, for example, this code sample:
http://snipplr.com/view/63090/[^].

—SA

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