MP3播放器

 

 

 

 

 

 

 

 

 

 

使用方法:把想要播放的音乐的路径输入textBook中,然后,点击输入路径就可以了。

               输入之后一定要加歌曲后缀   ".mp3".

 

 

 

代码如下:

 using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;
using System.Windows.Forms;

namespace mp3播放
{
class Mp3
{
public Mp3()
{
}
//定义API函数使用的字符串变量
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)]
private string Name = "";
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)]
private string durLength = "";
[MarshalAs(UnmanagedType.LPTStr, SizeConst = 128)]
private string TemStr = "";
int ilong;
//定义播放状态枚举变量
public enum State
{
mPlaying = 1,
mPuase = 2,
mStop = 3
};
//结构变量
public struct structMCI
{
//public bool bMut;
//public int iDur;
//public int iVol;
//public int iBal;
public string iName;
public State state;
public int iPos;
};

public structMCI mc = new structMCI();

//取得播放文件属性
public string FileName
{
get
{
return mc.iName;
}
set
{
//ASCIIEncoding asc = new ASCIIEncoding();
try
{
TemStr = "";
TemStr = TemStr.PadLeft(127, Convert.ToChar(" "));
Name = Name.PadLeft(260, Convert.ToChar(" "));
mc.iName = value;
ilong = APIClass.GetShortPathName(mc.iName, Name, Name.Length);
Name = GetCurrPath(Name);
//Name = "open " + Convert.ToChar(34) + Name + Convert.ToChar(34) + " alias media";
Name = "open " + Convert.ToChar(34) + Name + Convert.ToChar(34) + " alias media";
ilong = APIClass.mciSendString("close all", TemStr, TemStr.Length, 0);
ilong = APIClass.mciSendString(Name, TemStr, TemStr.Length, 0);
ilong = APIClass.mciSendString("set media time format milliseconds", TemStr, TemStr.Length, 0);
mc.state = State.mStop;
}
catch
{
MessageBox.Show("出错错误!");
}
}
}

         //播放
        public void play()
        {
            TemStr = "";
            TemStr = TemStr.PadLeft(127, Convert.ToChar(" "));
            APIClass.mciSendString("play media", TemStr, TemStr.Length, 0);
            mc.state = State.mPlaying;
        }
       
       
        private string GetCurrPath(string name)
        {
            if (name.Length < 1) return "";
            name = name.Trim();
            name = name.Substring(0, name.Length - 1);
            return name;
        }
      
    }
    public class APIClass
    {
        [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
        public static extern int GetShortPathName(
        string lpszLongPath,
        string shortFile,
        int cchBuffer
        );

        [DllImport("winmm.dll", EntryPoint = "mciSendString", CharSet = CharSet.Auto)]
        public static extern int mciSendString(
        string lpstrCommand,
        string lpstrReturnString,
        int uReturnLength,
        int hwndCallback
        );
    }
}
 

队长 :和彦鹏

合作人:何仁东,和彦鹏,李华飞,马钦佩,张送,申笑楠,徐坤鹏

 

 

 

需求分析:

 

 

 

 

 

 

总结,每个人都有不同的想法,每个人的意见也是没有完全统一,在项目开发的过程中,学到了很多在课堂上学不到的知识。 

         一个人的力量是有限的,但是团队的力量很强大,不仅可以获取知识,还能得到许多意想不到的东西。

posted @ 2015-11-07 21:39  雨过灬天晴  阅读(181)  评论(1编辑  收藏  举报