pango/pangocairo.go
func CairoShowLayoutLine(cr *cairo.Context, line *LayoutLine) {
	C.pango_cairo_show_layout_line(cairo_context(cr), line.native())
}
func CairoShowLayoutLine(cr *cairo.Context, line *LayoutLine) {
	C.pango_cairo_show_layout_line(cairo_context(cr), line.native())
}
//void pango_cairo_show_layout_line  (cairo_t          *cr,
//				    PangoLayoutLine  *line);