How to download the target surface as fast as possible

[lin.xianming]

I tend to use unigine as the engine for my Virtual Studio. I just want to get the outcome rendered by unigine in real time, which has to be a block of memory actually, then I can throw it out via a video card.

 

my questions are:

 

1) How can I download the target surface as fast as possible?

2) How can I hide the window of unigine? which is not necessary for my application.

 

Thanks!