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# Preference Keys

Keys that correspond to preferences in the persistent store.

## Topics

### Constants

[`let kSCPrefCurrentSet: CFString`](/documentation/SystemConfiguration/kSCPrefCurrentSet-swift.var)

The preference key `CurrentSet`, whose value is of type `CFString`.

[`let kSCPrefNetworkServices: CFString`](/documentation/SystemConfiguration/kSCPrefNetworkServices-swift.var)

The preference key for the `NetworkServices` dictionary.

[`let kSCPrefSets: CFString`](/documentation/SystemConfiguration/kSCPrefSets-swift.var)

The preference key for the `Sets` dictionary.

[`let kSCPrefSystem: CFString`](/documentation/SystemConfiguration/kSCPrefSystem-swift.var)

The preference key for the `System` dictionary.


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