public void SetVerticalGlyphOriginDelegate(GlyphOriginDelegate del, ReleaseDelegate destroy) { VerifyParameters(del); var ctx = DelegateProxies.CreateMulti(del, destroy); HarfBuzzApi.hb_font_funcs_set_glyph_v_origin_func(Handle, DelegateProxies.GlyphOriginProxy, ctx, DelegateProxies.ReleaseDelegateProxyForMulti); }