这是完成任务的神奇解决方案:

This is the magical fix that gets the job done :

void WaitForAsync( IAsyncAction ^A )
{   
    while(A->Status == Windows::Foundation::AsyncStatus::Started)
    {   
        CoreWindow::GetForCurrentThread()->Dispatcher->ProcessEvents(CoreProcessEventsOption::ProcessAllIfPresent);                     
    }

    Windows::Foundation::AsyncStatus S = A->Status; 
}