click script that works with multiple windows

[nonsensei]

hey all, total newb here.

i'm wondering if it's possible to create a script that works with multiple (6) chrome windows. i need it to determine which window the mouse pointer is currently in, and left mouse click on a specific coordinate within that window. the same hotkey, let's say 'spacebar' is to be used to make every left click.

quick example:

the mouse pointer is currently located at (xx, yy)
these coordinates lie within the boundaries of window '3'
spacebar::Click (on a specific coordinate in window 3) ; Click left mouse button at specified coordinates.

tyvm!