Performs the action for the menu item that corresponds to the given key equivalent.
Original signature is '- (BOOL)performKeyEquivalent:(NSEvent *)theEvent'
Available in Mac OS X v10.0 and later.


- theEvent (NSEvent)
- An NSEvent object that represents a key-equivalent event.

YES if theEvent is a key equivalent that the receiver handled, NO if it is not a key equivalent that it should handle.

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