Invalidates the area around the focus ring.
Original signature is '- (void)setKeyboardFocusRingNeedsDisplayInRect:(NSRect)rect'
Available in Mac OS X v10.1 and later.


- rect (NSRect)
- The rectangle of the control or cell defining the area around the focus ring. rect will be expanded to include the focus ring for invalidation.

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)