gtk/gtk.go
func (v *Adjustment) SetPageIncrement(value float64) {
	C.gtk_adjustment_set_page_increment(v.native(), C.gdouble(value))
}
func (v *Adjustment) SetPageIncrement(value float64) {
	C.gtk_adjustment_set_page_increment(v.native(), C.gdouble(value))
}
// SetPageIncrement is a wrapper around gtk_adjustment_set_page_increment().