winapi - 获取 waveIn 设备的全名

Question

我一直在使用waveInGetDevCaps获取 waveIn 设备的名称，但 WAVEINCAPS结构只支持 31 个字符加上一个 null，这意味着在我的计算机上，我得到的设备名称被截断:

Microphone / Line In (SigmaTel 
Microphone Array (SigmaTel High, 

我确信必须有一种获取完整设备名称的方法，但有人知道那是什么吗？

Answer 1

基于@Andrea Bertucelli 答案的改进/完整 C# WPF 代码

using NAudio.CoreAudioApi;
using NAudio.Wave;
using System;
using System.Collections.Generic;
using System.Windows;

namespace WpfApp2
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();

            foreach (KeyValuePair<string, MMDevice> device in GetInputAudioDevices())
            {
                Console.WriteLine("Name: {0}, State: {1}", device.Key, device.Value.State);
            }
        }

        public Dictionary<string, MMDevice> GetInputAudioDevices()
        {
            Dictionary<string, MMDevice> retVal = new Dictionary<string, MMDevice>();
            MMDeviceEnumerator enumerator = new MMDeviceEnumerator();
            int waveInDevices = WaveIn.DeviceCount;
            for (int waveInDevice = 0; waveInDevice < waveInDevices; waveInDevice++)
            {
                WaveInCapabilities deviceInfo = WaveIn.GetCapabilities(waveInDevice);
                foreach (MMDevice device in enumerator.EnumerateAudioEndPoints(DataFlow.Capture, DeviceState.All))
                {
                    if (device.FriendlyName.StartsWith(deviceInfo.ProductName))
                    {
                        retVal.Add(device.FriendlyName, device);
                        break;
                    }
                }
            }

            return retVal;
        }
    }
}