How or what to quickly take a screenshot from the screen in less than 1/10sec?

Question

Automation

You need a program that instantly takes a picture of the screen, preferably in very poor quality, and saves it in a file, for subsequent automatic analysis by pixels of the image, and then again and again, the screenshot process should take no more than 1/10 second.
For example, remote desktop programs take and send 50 snapshots per second. What do they do them

Answer 1

Any video streaming program. Specify FPS = 1 in its settings.