The position of the arrow displayed on the button.
When the value of this property is
NSPopUpNoArrow, the control displays no arrow.
NSPopUpArrowAtCenter displays the arrow centered horizontally within the cell and
NSPopUpArrowAtBottom displays the arrow at the edge of the cell. This property is used with
preferredEdge to determine the exact location and orientation of the arrow.
This property applies to only bezel style and borderless pop-up buttons.
Accessing menu attributes
The pop-up button’s associated menu.
A Boolean value that indicates the behavior of the button’s menu.
A Boolean value that indicates if the button automatically enables and disables its items every time a user event occurs.
The edge of the cell from which the menu should pop out when screen conditions are restrictive.
A Boolean value that indicates if the control uses an item from the menu for its own title.
A Boolean value that indicates if the pop-up button links the state of the selected menu item to the current selection.