title AsyncBase::PutOnProgress Method | Microsoft Docs ms.custom ms.date 11/04/2016 ms.technology cpp-windows ms.topic reference f1_keywords async/Microsoft::WRL::AsyncBase::PutOnProgress dev_langs C++ helpviewer_keywords PutOnProgress method ms.assetid 1f5f180e-eb5a-4afe-ac16-69dbf36f0383 author mikeblome ms.author mblome ms.workload cplusplus uwp AsyncBase::PutOnProgress Method Sets the address of the progress event handler to the specified value. Syntax STDMETHOD( PutOnProgress )(TProgress* progressHandler); Parameters progressHandler The address to which the progress event handler is set. Return Value S_OK if successful; otherwise, E_ILLEGAL_METHOD_CALL. Requirements Header: async.h Namespace: Microsoft::WRL See Also AsyncBase Class