[ft] Noob Unable to get glyph data for MathML fonts

[Ken Tilton]

Hi, I am trying to use glyph data to do precise arrangement of 
mathematical expressions. I have code that successfully gets character 
indexes and glyphs and character-specific data and all that for ordinary 
non-math fonts such as Times and Comic Sans, but when I go after 
something like math2___.ttf (which has the symbols I need), 
FT_get_char_index returns zero for all char codes I pass it. I am 
rendering these symbols OK, I just cannot get the metrics I need to pick 
out the, say, radical of the best size for the contained expression and 
then align that expression under the radical.

I poked around the doc quite a bit but did not see anything, but then I 
am a total FT noob so it might have gone right over my head.

Any help/hints appreciated.

kt