Sets the #hb_codepoint_t that replaces characters not found in the font during shaping.
The not-found glyph defaults to zero, sometimes known as the ".notdef" glyph. This API allows for differentiating the two.
An #hb_buffer_t
the not-found #hb_codepoint_t
Sets the #hb_codepoint_t that replaces characters not found in the font during shaping.
The not-found glyph defaults to zero, sometimes known as the ".notdef" glyph. This API allows for differentiating the two.