Returns the Boolean value associated with the specified key.
Original signature is '- (BOOL)boolForKey:(NSString *)defaultName'
Available in Mac OS X v10.0 and later.


- defaultName (NSString)
- A key in the current user's defaults database.

If a boolean value is associated with defaultName in the user defaults, that value is returned. Otherwise, NO is returned.

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