_IsDone          3558 modules/highgui/src/ppltasks_winrt.h         bool _IsDone()
_IsDone          4640 modules/highgui/src/ppltasks_winrt.h         return _M_Impl->_IsDone();
_IsDone          4640 modules/videoio/src/ppltasks_winrt.hpp         return _M_Impl->_IsDone();