> For various fonts it will present the rectangle for a glyph I assume
> it couldn't determine, but there are no errors and even the data is
> still filled in.
If you use OpenType fonts it is common that characters that have no
corresponding glyphs are mapped to glyph index 0, the '.notdef' glyph.
> Is there a way I can skip these characters without potentially
> having a map of all fonts and the dimensions a rectangle would
> present (which is still not desirable as some characters may
> actually meet those dimensions)?
Your description is far too vague to give any advice.
Werner
