form1.cs

来自「C#声卡的检测及声卡发声源代码」· CS 代码 · 共 40 行

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
//引入命名空间
using System.Runtime.InteropServices;

namespace PC_ShengKa
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        //调用API函数
        [DllImport("winmm.dll",EntryPoint="waveOutGetNumDevs")]
        public static extern int waveOutGetNumDevs();
        private void button1_Click(object sender, EventArgs e)
        {
            MessageBox.Show(waveOutGetNumDevs().ToString());
            //判断是否存在声卡
            if (waveOutGetNumDevs()!=0)     
	        {
		        MessageBox.Show("有声卡!");
                Form2 frm=new Form2();
                frm.ShowDialog();
            }
            else
	        {
                MessageBox.Show("无声卡！！！");
	        }
        }
    }
}