title: Interact with pc in python (mouse+screenshot)
body: <p>I'm writing a bot that interact with the pc. Briefly what I do is:  </p>
  
  <p>-Take a screenshot of the screen
  -recognize an object (with cv2 matchTemplate) on this screenshot<br>
  -make some mouse action using the position found (example: move the mouse pointer on an icon found in the previous point)<br>
  -restart from the first point  </p>
  
  <p>Now, I have to interact with some object in movement on the screen, and so I need a fast way to take screenshot, or an alternative way to do this job, what can I do?</p>