Function harfbuzz_sys::hb_font_get_variation_glyph

pub unsafe extern "C" fn hb_font_get_variation_glyph(
    font: *mut hb_font_t,
    unicode: hb_codepoint_t,
    variation_selector: hb_codepoint_t,
    glyph: *mut hb_codepoint_t,
) -> hb_bool_t