gtk/gtk.go
func (v *Range) SetIncrements(step, page float64) {
	C.gtk_range_set_increments(v.native(), C.gdouble(step), C.gdouble(page))
}
func (v *Range) SetIncrements(step, page float64) {
	C.gtk_range_set_increments(v.native(), C.gdouble(step), C.gdouble(page))
}
// SetIncrements() is a wrapper around gtk_range_set_increments().