Question

所以我终于找到了一篇帮助我上课的帖子

using System;
using System.Text;
using System.Runtime.InteropServices;
using System.IO;

namespace MidiProgram
{
/// <summary>
/// MCIPlayer is based off code by Slain.
/// Found here: http://www.sadeveloper.net/Articles_View.aspx?articleID=212
/// </summary>
public class MCIPlayer
{

    private static readonly string sAlias = "TeaTimerAudio";

    [DllImport("winmm.dll")]
    private static extern long mciSendString(string strCommand, StringBuilder strReturn, int iReturnLength, IntPtr hwndCallback);
    [DllImport("Winmm.dll")]
    private static extern long PlaySound(byte[] data, IntPtr hMod, UInt32 dwFlags);

    public static void Play(string sFile)
    {
        _Open(sFile);
        _Play();
    }
    public static void Stop()
    {
        _Close();
    }

    private static void _Open(string sFileName)
    {
        if (_Status() != "")
            _Close();

        string sCommand = "open \"" + sFileName + "\" alias " + sAlias;
        mciSendString(sCommand, null, 0, IntPtr.Zero);
    }

    private static void _Close()
    {
        string sCommand = "close " + sAlias;
        mciSendString(sCommand, null, 0, IntPtr.Zero);
    }

    private static void _Play()
    {
        string sCommand = "play " + sAlias;
        mciSendString(sCommand, null, 0, IntPtr.Zero);
    }

    private static string _Status()
    {
        StringBuilder sBuffer = new StringBuilder(128);
        mciSendString("status " + sAlias + " mode", sBuffer, sBuffer.Capacity, IntPtr.Zero);
        return sBuffer.ToString();
    }
}
}

然而，如果一个问题，我似乎找到了一点点，整个程序使得声音但显然输出到（microsoft gs wavetable synth）在这个类中有没有一种方法我可以改变midi输出的方式，或者它只是像那种形式的MediaPlayer一样播放，请告诉我，这是我项目的最后一步只是一个简单的代码，并且我只想说我可以这样做我可以用整数或其名称指定midi设备，通过整数我的意思是midi设备的命令！

Answer 1

MCI音序器设备允许您使用set command：

设置端口

设置端口 port_number

我可以更改mciSendString

1 个答案: