func PangoRectToPixels(P *C.PangoRectangle) (x, y, w, h float64) { return float64(C.pango_units_to_double(P.x)), float64(C.pango_units_to_double(P.y)), float64(C.pango_units_to_double(P.width)), float64(C.pango_units_to_double(P.height)) }
func PangoToPixels(u C.int) float64 { return float64(C.pango_units_to_double(u)) }