label : String; This property holds the spinbox's label text.
maximum : Number; This property holds the maximum value of the spin box. The default maximum value is 2,147,483,647.
minimum : Number; This property holds the minimum value of the spin box. The default minimum value is -2,147,483,648.
value : Number; This property holds the value of the spin box.
tooltip : String; This property holds the tool tip (balloon help) for the widget.
whatsThis : String; This property holds a simple description of the widget.