TPersistent.FPOAttachObserver
Add an observer to the list of observers.
Declaration
Source position: classesh.inc line 441
public
procedure FPOAttachObserver(AObserver: TObject);
Description
FPOAttachObserver is part of the implementation of the IFPObserved interface in TPersistent. It adds a new observer to the list of observers. Calling this multiple times will add the observed object multiple times to the list.
Errors
An EObserver exception may be raised if AObject does not implement the IFPObserver interface.
See also
| Name | Description |
|---|---|
| IFPObserved | Interface implemented by an object that can be observed. |
| IFPObserved.FPOAttachObserver | Attach a new observer to the object |
| IFPObserver | Interface for an object to observe other objects. |