Desktop duplication

Question

I use directX(GetFrontBufferData) to capture screen  but it cost 70 ms to capture a frame in my platform.

Is there any other method which faster than this function?

I find a sample which can do it http://code.msdn.microsoft.com/Desktop-Duplication-Sample-da4c696a

Does this sample only support win8?

How much time it cost to capture a frame?

If I want to do screen capture by WDDM. Is there any sample?

Thanks

Answer 1

Hi kkbee,

This forum is for developers writing Metro style apps using DirectX.

For general DirectX questions please post in the DirectX forums on the App Hub.

For other desktop application development issues please post in the Windows Desktop Development forums.

That said, there probably isn't a faster method. The Desktop Duplication API are new to Windows 8 and apply only to desktop apps, not Metro style apps.

--Rob

Answer 2

Hi Rob,

I see.

Thanks for your reply.