How to tell when flex app has finished working?

Hi ,

    

how to know action is completed successfully or not.please find below developers given flag code

how to handle flex application has finished the task.how to get flag status through testcomplete tool.which method used to solve the cursor busy.

                       
case
ListSearchEvent.TYPE_GET_LISTSEARCHFIELDS:

                             
token = listSearchDelegate.getListSearchFields();

                             
token.addResponder(new mx.rpc.Responder(resultHandler, faultHandler));

      private function resultHandler(event:ResultEvent):void {

                 
ListSearchModel.getInstance().listSearchFieldsAC = event.result as
ArrayCollection;

                 
ListSearchModel.getInstance().selectedIndex=0;

private function faultHandler(event:FaultEvent):void {

                 
Alert.show(ResourceManager.getInstance().getString("resources", "Global.RemoteObjectError.Message") +
event.message);

Regards,

Vijay