如何检测在WinRT中拔出耳机插孔？ [英] How to detect unplugged headphone jack in WinRT?

问题描述

有没有得到通知，每当一个耳机插孔是在WinRT中的应用程序不插电的方式？我希望能够暂停MediaElement的播放，当它发生，以防止声音从扩音器泄漏。

Is there a way to get notified whenever a headphone jack is unplugged in a WinRT app? I want to be able to pause MediaElement playback when it happens to prevent the sound from leaking out through loudspeakers.

推荐答案

杰克检测的通知通过IMMNotificationClient暴露:: OnDeviceStateChanged。刚刚试了一下win8的桌面上，OnDeviceStateChanged被调用DEVICE_STATE_UNPLUGGED和DEVICE_STATE_ACTIVE时（UN）插入的设备。可悲的是WASAPI的一部分只所以我想有没有办法做到这一点在WinRT的记录为桌面。

Jack detection notification is exposed through IMMNotificationClient::OnDeviceStateChanged. Just tried it on win8 desktop, OnDeviceStateChanged gets called with DEVICE_STATE_UNPLUGGED and DEVICE_STATE_ACTIVE when (un)plugging a device. Sadly that part of wasapi is documented as desktop only so i guess there's no way to do it in WinRT.

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