Returns the average width of a font in pixels.
graphics-ports
get-font-average-width port &optional font => average-width
port
A CAPI pane.
font
A font.
average-width
An integer.
The function get-font-average-width returns the average-width in pixels of the font associated with port , or the font given.
get-font-average-width
Drawing - Graphics Ports
CAPI User Guide and Reference Manual (Windows version) - 3 Aug 2017