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

TList.FPONotifyObservers

Notify observers of changes in the list

Declaration

Source position: classesh.inc line 325

public procedure TList.FPONotifyObservers(

  ASender: TObject;

  AOperation: TFPObservedOperation;

  Data: Pointer

);

Description

FPONotifyObservers is called to notify observers of changes in the list. The following notifications are sent:

ooAddItem
when a pointer is added. Data is the pointer that is added.
ooDeleteItem
when a pointer is deleted or extracted. Data is the pointer that is deleted or extracted.
ooChange
called when 2 pointers are exchanged.
ooFree
Called when the list is freed.

See also

FPODetachObserver

FPOAttachObserver

Add

Exchange

Delete

  

Delete elements (characters) from a string or dynamic array.

Extract


Documentation generated on: May 14 2021