using CUDA do screen capture ?

Accelerated Computing CUDA CUDA Programming and Performance
1

Your Excellency :

I would like to use CUDA to capture the content of screen, that is, copy the frame (image)- buffer

from video memory to system memory (then do something on the image.).

Could CUDA help me to reach this target? If yes, is there simple / example?

Or what should I get start ?

Thank you!

2

No, CUDA doesn’t have direct access to the frame buffer.

3

I seem to remember that NVAPI had a function to map the desktop as a texture (which would avoid the copy), but I can’t find it now.