[Fontconfig] Text extent question - sum of advance not scaling exactly as Font Size * DPI

[mathog]

On 12-Oct-2012 15:15, mathog wrote:
>          advance += face->glyph->advance.x;

Also, what are the units of advance.x? Pixels, Points, Points/64,...?

Thanks,

David Mathog
mathog at caltech.edu
Manager, Sequence Analysis Facility, Biology Division, Caltech