TObservedHook.FPOAttachObserver procedure
Attaches an observer implementing IFPObserver interface
Declaration
procedure FPOAttachObserver(AObserver: TObject)Arguments
AObserver | Observer object to attach |
Description
The FPOAttachObserver method adds an observer to the notification list.
The observer object must implement the IFPObserver interface or an exception will be raised.
Once attached, the observer will receive notifications about all operations performed on the observed object, including changes, item additions, deletions, and custom notifications.
Errors
The same observer can only be attached once; attempting to attach it multiple times will result in an
EObserver Eexception.
See also
- EObserver
- FPODetachObserver
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.