如何在python 2.7 for mac中截取背景应用程序的截图

Question

I have been trying to make a program that notifies me when a number changes on an app. I have been using ImageGrab and then pytesseract which works but I can only figure out how to take the screenshot when I can visually see the number. It would be very nice if there was a way to take an image of the app if it was minimized (not visible on the screen) so I could work on other things as it ran. I also need the picture of a certain part of that app I need to do a bounding box within the app of where the picture is taken.

This is what I am currently using which takes a certain part of the whole screen:

img = ImageGrab.grab(bbox=(1400,875,1445,905))

I think there might be a way to do it with Quartz but I could not find out how to do a region of a background app.

Answer 1

You can screenshot what is on your screen. If the app is minimized, that number you're looking for is not on the screen.