freetype can't recognise charcode as FontForge
with a custom font missing charmap,
fontforge display a char (like 37 (0x25) "G25"), but facetype can't load it with face.load_char(37)
which thorw FT_Exception: FT_Exception: (invalid argument)
.
`face.load_char` can load 0 to the count of all used slots just as load_glyph
, even char code 0 is actually no glyph.
Edited by NewU serHa