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    TObservedHook.FPOAttachObserver

    Attaches an observer implementing IFPObserver interface

    Declaration

    Source position: fpobserver.pp line 41

    public 
procedure TObservedHook.FPOAttachObserver(AObserver: TObject);

    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

    Name Description
    EObserver
    TObservedHook.FPODetachObserver Detaches an observer from the notification list