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

TFPObservedOperation

Operation which is reported to an observer

Declaration

Source position: classesh.inc line 160

type TFPObservedOperation = (

  ooChange,

  

The observed object has changed.

  ooFree,

  

The observed object is being freed.

  ooAddItem,

  

An item is added to the observed object (generally a list).

  ooDeleteItem,

  

An item is deleted from the observed object (generally a list).

  ooCustom

  

Custom event.

);

Description

TFPObservedOperation enumerates the possible operations that can be reported to an observer. Which of these operations is reported depends on the implementation of the observed object.

See also

IFPObserved

  

Interface implemented by an object that can be observed.

IFPObserver

  

Interface for an object to observe other objects.


Documentation generated on: Jun 23 2021