A virtual method for the #hb_font_funcs_t of an #hb_font_t object.
This method should retrieve the glyph ID for a specified Unicode code point
followed by a specified Variation Selector code point. Glyph IDs must be
returned in a #hb_codepoint_t output parameter.
A virtual method for the #hb_font_funcs_t of an #hb_font_t object.
This method should retrieve the glyph ID for a specified Unicode code point followed by a specified Variation Selector code point. Glyph IDs must be returned in a #hb_codepoint_t output parameter.