SYNOPSIS
#include <pslib.h>
float PS_symbol_width(PSDoc *psdoc, unsigned char c, int fontid, float size)
DESCRIPTION
Retrieves the width of a glyph which is at position c in the font encoding vector. The font encoding for a font can be set when loading the font with PS_findfont().
fontid and size are optional and can be set to zero. In such a case the current font and size will be used.
RETURN VALUE
The width of the symbol in points.