A BMenuField object displays a labeled pop-up menu. It's a simple object that employs a BMenuBar object to control a BMenu. All it adds to what a BMenuBar can do on its own is a label and a more control-like user interface that includes keyboard navigation.

The functions defined in this class resemble those of a BControl (SetLabel(), IsEnabled()), especially a BTextControl (SetDivider(), Alignment()). However, unlike a real BControl object, a BMenuField doesn't maintain a current value and it can't be invoked to send a message. All the control work is done by items in the BMenu.