[ft] Re: Where to position the baseline?

[Troy Watson]

Sorry, not sure what happened to the message body!

Tutorial 2, section 3.a ( Design global metrics) states:
ascender:
    ... Unfortunately, font formats define the ascender differently. ...
descender:
    ... Unfortunately, font formats define the descender differently. ...

Section 3.b (Scaled global metrics)
height:
    ... This is probably the only field you should really use in this structure.


Where should the baseline of the first line of text be positioned?
Currently, I am using the scaled ascender field of
face->size->metrics, but if it is unreliable, are you supposed to
check the bbox of all glyphs on the first line to determine the
baseline position?