jbcl.util Package
com.borland.jbcl.util.BlackBox
Implemented by ButtonBar, ButtonControl, CheckboxControl, CheckboxPanel, ChoiceControl, FieldControl, GridControl, ImageControl, ListControl, LocatorControl, LookAndFeelComboBox, NavigatorControl, PickListItemEditor, ShapeControl, StatusBar, TabsetControl, TextAreaControl, TextControl, TextFieldControl, TreeControl
The BlackBox
is an empty interface that signals that the component is a non-container. A component that implements BlackBox
cannot have a layout or contain other objects within it, even if it is a subclass of Container
.