A Boolean value that indicates if the combo box displays a vertical scroller.
- macOS 10.0+
When the value of this property is
true, the combo box displays a vertical scroller; when the value is
false, it does not. The default value of this property is
true. Note that the scroller is displayed even if the pop-up list contains fewer items than will fit in the area specified for display.
If you set this property to
false and the combo box cell has more list items (either in its internal item list or from its data source) than are allowed by
number, only a subset are displayed. The
scroll... methods can be used to position this subset within the pop-up list.