Gtk.SpinButton.new

function new(adjustment:Gtk.Adjustment, climb_rate:Number, digits:Number):Gtk.Widget {
    // Gjs wrapper for gtk_spin_button_new()
}

Creates a new Gtk.SpinButton.

adjustment: the Gtk.Adjustment object that this spin button should use, or null
climb_rate: specifies how much the spin button changes when an arrow is clicked on
digits: the number of decimal places to display
Returns: The new spin button as a Gtk.Widget