Returns, as multiple values, a screen rectangle covering the full area of all the monitors associated with a screen.
The function
virtual-screen-geometry
returns the "virtual" geometry of the screen
screen
, which is a screen rectangle covering the full area of all the monitors that are associated with screen.
The screen rectangle is at coordinates x and y as offsets from the top-left of the primary screen, with dimensions width and height .
CAPI Reference Manual - 15 Dec 2011