目前知道如何获取设备列表，但用户在插拔摄像头、麦克风、耳机等音视频设备时，窗口在哪里如何获取通知呢？求教具体方式，谢谢！
我是快乐的小鱼^_^
你好，
请问你是想获取音量变化时的通知吗？
DeviceTopology API 可以使用户在音量适配器拓扑中获取到音量控制器。
具体代码示例，请参看以下链接：
Audio Session Events
Managing the Audio Session
Fun with the endpoint volume interfaces -
closing the loop
Getting
volume change notifications on Vista/7 (C++)
至于如何获取设备列表， 请尝试以下函数或方法：
waveInGetDevCaps function
waveOutGetDevCaps function
waveOutGetNumDevs function
IMMDeviceEnumerator::GetDefaultAudioEndpoint method
相关代码，请参看
How to programmatically retrieve the name of default audio input device on Windows XP?
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