[ft] How to get the glyph whose index is greater than 0x110000

[wei wenjing]

Hi,

I am using the font "latinmodern-math.otf" in my program.

I have tried two ways to get the glyph whose index is greater than 0x110000 :

1、using FT_Get_First_Char，FT_Get_Next_Char to iterate over all glyphs

2、try  FT_Face_GetCharVariantIndex to get the glyph index  and then load the glyph

but all failed.

Is there anything I am missing？

Thanks