title AsyncBase::AsyncBase Constructor | Microsoft Docs ms.custom ms.date 11/04/2016 ms.reviewer ms.suite ms.technology cpp-windows ms.tgt_pltfrm ms.topic reference f1_keywords async/Microsoft::WRL::AsyncBase::AsyncBase dev_langs C++ helpviewer_keywords AsyncBase, constructor ms.assetid 1bef3dff-cc04-45fb-a459-0fe3629a0b40 caps.latest.revision 3 author mikeblome ms.author mblome manager ghogen ms.workload cplusplus uwp AsyncBase::AsyncBase Constructor Initializes an instance of the AsyncBase class. Syntax AsyncBase(); Requirements Header: async.h Namespace: Microsoft::WRL See Also AsyncBase Class