< Integer > = GET PRINTER FONT SIZE (Handle) < String >
GET PRINTER FONT SIZE returns the size of the font named by handle in points. If
the font named by handle can not be found then the size is returned as -1. If handle
is set to an empty string the font size being used by the printer is returned.
Points are a unit of measurement commonly used with fonts.
1 point is equal to 1/72 of an inch and 1 inch is equal to 2.54 cm.