Notifies the button whether it is the default button so that it can adjust its appearance accordingly.
void notifyDefault( boolean value )
value
Set to true to notify the button that it is the default button; otherwise, set to false.
This method is called from the parent form to notify the button that it should consider itself the default button and to allow the button to adjust its appearance accordingly. Typically, a Windows command button that is the default button for a form has a thicker border than other buttons on the form.