Priority Awaiter. On Completed(Action) Method
Sets the action to perform when the DispatcherPriorityAwaiter object stops waiting for the asynchronous task to complete.
public: virtual void OnCompleted(Action ^ continuation);
public void OnCompleted (Action continuation);
abstract member OnCompleted : Action -> unit override this.OnCompleted : Action -> unit
Public Sub OnCompleted (continuation As Action)
The action to perform when the wait operation completes.