Font Manager Routines
You can use these routines to choose TrueType fonts over bitmapped fonts, or to determine which type of font the current grafPort record uses. You can find out
interferes with the line spacing in a document, you can use the Font Manager to scale the glyph to the same size as other glyphs on the line. If your
application is a font editor or otherwise needs to manipulate the 'sfnt'
resource, you may need a routine to erase the Font Manager's memory caches.