Returns the screen object containing the window with the keyboard focus.
- macOS 10.0+
The main screen object.
The main screen is not necessarily the same screen that contains the menu bar or has its origin at
(0, 0). The main screen refers to the screen containing the window that is currently receiving keyboard events. It is the main screen because it is the one with which the user is most likely interacting.
The screen containing the menu bar is always the first object (index
0) in the array returned by the