RAD Studio VCL Reference
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TList.Notify Method

Responds when items are added, removed, or extracted from the list.

Pascal
procedure Notify(Ptr: Pointer; Action: TListNotification); virtual;
C++
virtual __fastcall Notify(void * Ptr, TListNotification Action);

Notify is called automatically when the items in the collection change.  

Ptr points to item affected by the change.  

Action indicates the change.  

As implemented in TList, Notify does nothing. Descendant classes can override Notify in order to implement an appropriate response to the change notification. 

 

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