Function harfbuzz_sys::hb_font_get_glyph_h_kerning

pub unsafe extern "C" fn hb_font_get_glyph_h_kerning(
    font: *mut hb_font_t, 
    left_glyph: hb_codepoint_t, 
    right_glyph: hb_codepoint_t
) -> hb_position_t