PTToolManagerFormFieldDataModifiedNotification
extern const NSNotificationName _Nonnull PTToolManagerFormFieldDataModifiedNotification
Posted when a form field’s data is modified, e.g. a text box’s text is modified, a checkbox is checked, etc.
The notification object is the tool manager that posted the notification. The userInfo
dictionary
contains entries for the PTToolManagerAnnotationUserInfoKey
and PTToolManagerPageNumberUserInfoKey
keys.