gtk/gtk.go
func (v *Range) SetRange(min, max float64) {
	C.gtk_range_set_range(v.native(), C.gdouble(min), C.gdouble(max))
}
func (v *Range) SetRange(min, max float64) {
	C.gtk_range_set_range(v.native(), C.gdouble(min), C.gdouble(max))
}
// SetRange() is a wrapper around gtk_range_set_range().