[Spice-devel] Client Graphics Filtering

[蒋媛园]

 Hi
   I want to filter the graphics to the client. For example, only the
graphics of a calculator(in guest OS Win7) are send to the client. 
   I know that there is always the possibility of falling all the way back to CPU drawing to a memory bitmap which is then copied to the client.
   Now, I have filtered the drawing commands on device-managed surfaces which belong to some app.exe. However I don't know how to control the engine-managed surfaces, namely those pre-rendered bitmaps. I didn't find related code in QXL driver. 
   Could you please give me some advice? I really need some help.


Thanks in advance
 Best Regards!
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