Sound Through Speaker And Earphone both or from Speaker Only

问题

in UWP or Windows phone 8/8.1/silverlight i want to play sound through speaker only speaker event earphone connected or switch audio to loudspeaker on button click or in both any thing may possible? please suggest me a solution

来源：https://stackoverflow.com/questions/40013741/sound-through-speaker-and-earphone-both-or-from-speaker-only