A key for neutral temperature. The associated value is a floating-point value packaged as an NSNumber object. You can query this value to get the current temperature value.
Available in Mac OS X v10.5 and later.
Declaration Syntax Version Information- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)