[This is preliminary documentation and is subject to change.]
The KNKVOConstants type exposes the following members.
Fields
| Name | Description | |
|---|---|---|
  | KNKeyValueChangeIndexesKey |
Unused.
|
| KNKeyValueChangeKindKey |
Unused.
|
| KNKeyValueChangeNewKey |
KVO notification change dictionaries contain the new value under this key if KNKeyValueObservingOptionNew was specified
when creating the observation.
|
| KNKeyValueChangeNotificationIsPriorKey |
KVO notification change dictionaries contain true under this key if KNKeyValueObservingOptionPrior was specified
when creating the observation and the current change notification is prior to the value changing. If the
notification isn't a prior notification, this key isn't present.
|
| KNKeyValueChangeOldKey |
KVO notification change dictionaries contain the old value under this key if KNKeyValueObservingOptionOld was specified
when creating the observation.
|
