Gets and sets the top element of a rectangle.
graphics-ports
rectangle-top rectangle => top
| rectangle⇩ | 
A rectangle. | 
| top⇩ | 
A real number. | 
The macro rectangle-top returns and via setf sets the top element of rectangle. rectangle-top can also be used with setf to set the top element of rectangle.
CAPI User Guide and Reference Manual (Unix version) - 01 Dec 2021 19:33:02