[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] Reference for unit 'Classes' (#rtl)

IFPObserver

[Properties (by Name)] [Methods (by Name)] [Events (by Name)]

Interface for an object to observe other objects.

Declaration

Source position: classesh.inc line 176

type IFPObserver = interface

  procedure FPOObservedChanged();

  

Entry point for change notifications

end;

Inheritance

IFPObserver

  

Interface for an object to observe other objects.

Description

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.

See also

IFPObserved

  

Interface implemented by an object that can be observed.

FPOAttachObserver

  

Attach a new observer to the object


Documentation generated on: Jun 23 2021