C#监测音频设备热插拔功能

Question

C#热插拔麦克分扬声器.Net

Answer 1

经过多天的资料查找，问题解决了。现留个脚印，结贴！
using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
using CoreAudio.Interfaces;
using CoreAudio;namespace AudioEnginHelper_Clbrt
{
    //Small wrapper class
    public class MMNotificationClient : IMMNotificationClient
    {
        public DeviceStateChangedDelegate dvMicChangedDlgt;
        public DeviceStateChangedDelegate dvSpkChangedDlgt;        MMDeviceEnumerator DevEnum = null;
        public MMNotificationClient()
        {
            DevEnum = new MMDeviceEnumerator();
            DevEnum.RegisterEndpointNotificationCallback(this); 
        }                public void OnDeviceStateChanged([In, MarshalAs(UnmanagedType.LPWStr)] string pwstrDeviceId, DEVICE_STATE dwNewState)
        {
            if (null != DevEnum)
            {
                MMDevice mMDevice = DevEnum.GetDevice(pwstrDeviceId);
                if (null != mMDevice)
                {
                    switch (mMDevice.DataFlow)
                    {
                        case EDataFlow.eRender:
                            {
                                dvSpkChangedDlgt();
                            }
                            break;
                        case EDataFlow.eCapture:
                            {
                                dvMicChangedDlgt();
                            }
                            break;
                        default:
                            {
                                dvSpkChangedDlgt();
                                dvMicChangedDlgt();
                            }
                            break;
                    }
                }
            }
        }       
    }
}用到的开源库请到本人的资源中下载。

Answer 2

您好, 可否教我如何創建一DeviceStateChangedDelegate ?
感謝