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Interface for an object to observe other objects.
Source position: classesh.inc line 177
type IFPObserver = interface end; |
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procedure FPOObservedChanged(); |
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Entry point for change notifications |
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Interface for an object to observe other objects. |
IFPObserver is the interface an object must implement if it wishes to receive change notifications from another object. The presence of this interface will be checked when the object registers itself using IFPObserver.FPOAttachObserver. The change notifications arrive because the FPOObservedChanged method is called by the observed object.
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Interface implemented by an object that can be observed. |
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Attach a new observer to the object |