Question

win8用C#开发 如何检测用户是否使用麦克风

Answer 1

 引用
 using Microsoft.DirectX;
using Microsoft.DirectX.DirectSound;
 // 获取默认音频捕捉设备
            CaptureDevicesCollection devices = new CaptureDevicesCollection(); // 枚举音频捕捉设备
            Guid deviceGuid = Guid.Empty;                                       // 音频捕捉设备的ID
            if (devices.Count > 0)
                deviceGuid = devices[0].DriverGuid;
            else
            {
                MessageBox.Show("系统中没有音频捕捉设备");
                return false;
            }
            try
            {
                Capture cap = new Capture(devices[0].DriverGuid);
                if (cap.Caps.Channels > 0)
                {
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("系统中没有音频捕捉设备,请检测");
                return false;
            }

Answer 2