How to use the ImageGrab.grab().load() function or any other function to get pixel updates?

Question

I have been trying to check if a pixel on the screen is changing. What do I need to do?

I have surfed the internet for a long time with no success. I have experiment

Answer 1

This works for me:

#!/usr/bin/env python3

from PIL import ImageGrab

while True:
   px=ImageGrab.grab().load()
   m=px[613,296]
   print(m)

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I think it will be faster if you just grab one pixel though by specifying a bounding box like this so you only grab one pixel:

#!/usr/bin/env python3

from PIL import ImageGrab

while True:
   screen=ImageGrab.grab(bbox=(613,296,614,297))
   px = screen.load()
   m=px[0,0]
   print(m,screen.size)