.NET/beep - Sample is best!

開発環境	メモ帳
実行環境	Windows 7 Home Premium (32bit)

参考

• ＠IT：.NET TIPS Win32 APIやDLL関数を呼び出すには？ - C#

beep.cs

using System;
using System.Runtime.InteropServices;
 
namespace beep
{
    class Program
    {
        [DllImport("kernel32.dll")]
        private extern static bool Beep(uint dwFreq, uint dwDuration);
 
        static void Main(string[] args)
        {
            int[] scale = { 0, 2, 4, 5, 7, 9, 11, 12 };
            uint dwFreq;
            for (int i = 0; i < scale.Length; i++ )
            {
                dwFreq = (uint)(440.0 * Math.Pow(2.0, (scale[i] + 3) / 12.0));
                Beep(dwFreq, 500);
            }
        }
    }
}