pango/pangocairo.go
func CairoShowLayout(cr *cairo.Context, layout *Layout) {
	C.pango_cairo_show_layout(cairo_context(cr), layout.native())
}
func CairoShowLayout(cr *cairo.Context, layout *Layout) {
	C.pango_cairo_show_layout(cairo_context(cr), layout.native())
}
//void pango_cairo_show_layout       (cairo_t          *cr,
//				    PangoLayout      *layout);