PTToolManagerAnnotationWillModifyNotification
extern const NSNotificationName _Nonnull PTToolManagerAnnotationWillModifyNotification
Posted when an annotation will be modified.
The notification object is the tool manager that posted the notification. The userInfo dictionary
contains entries for the PTToolManagerAnnotationUserInfoKey and PTToolManagerPageNumberUserInfoKey
keys.
PTToolManagerAnnotationWillModifyNotification Constant Reference