if (y) (*y) = font->ascent + font->descent;
if (descent) (*descent) = font->descent;
if (externalLeading) (*externalLeading) = 0; // ??
if (y) (*y) = font->ascent + font->descent;
if (descent) (*descent) = font->descent;
if (externalLeading) (*externalLeading) = 0; // ??