get_Completed    1774 modules/videoio/src/ppltasks_winrt.hpp         virtual STDMETHODIMP get_Completed(_CompletionHandlerType** handler)
get_Completed    7405 modules/videoio/src/ppltasks_winrt.hpp         virtual STDMETHODIMP get_Completed(typename _Attributes::_CompletionDelegateType** _CompleteHandler)