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


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

The floating-point value associated with the specified key. If the key does not exist, this method returns 0.

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