Returns the width of a string drawn to a given port in pixels.
graphics-ports
port-string-width port string => width
| port⇩ | 
A graphics port. | 
| string⇩ | 
A string. | 
| width | 
An integer. | 
The function port-string-width returns the width in pixels of string when drawn to port. The font used is the font currently in the port's graphics-state.
To compute the horizontal extents of each successive character in a string for a given port or font, use compute-char-extents.
CAPI User Guide and Reference Manual (Unix version) - 01 Dec 2021 19:33:02