property OnCreate: TOnCreateEvent;

OnCreate is a TOnCreateEvent property that represents the event handler signalled during creation of the TIdCookieManager object instance. Applications must assign a procedure to the event handler to allow responding to the event notification. 

OnCreate can be used to handle management of the CookieCollection when the TIdCookieManager calls the Create method. 

Use OnDestroy to handle management of the CookieCollection when the object instance is freed.