声音
1、调用系统的声音来提示用户
System.Media.SystemSounds.XXX.Play();
2、播放波形文件WAV格式
if (this.openFileDialog1.ShowDialog() == DialogResult.OK) { SoundPlayer player = new SoundPlayer(); player.SoundLocation = this.openFileDialog1.FileName; //player.LoadAsync(); player.Load(); player.Play(); }
3、播放MP3文件 比较复杂啊
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Runtime.InteropServices; using System.Text; using System.Windows.Forms; namespace MP3播放器 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { } clsMCI cm = new clsMCI(); string filename = ""; private void btnPlay_Click(object sender, EventArgs e) { if (this.openFileDialog1.ShowDialog() == DialogResult.OK) { cm.FileName = this.openFileDialog1.FileName; filename = cm.FileName; cm.Play(); } } private void btnStop_Click(object sender, EventArgs e) { cm.Stop(); } private void button1_Click(object sender, EventArgs e) { cm.FileName = filename; cm.Play(); } } public class clsMCI { public clsMCI() { // // TODO: 在此处添加构造函数逻辑 // } //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 iPos; public int iVol; public int iBal; public string iName; public State state; }; 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 { } } } //播放 public void Play() { TemStr = ""; TemStr = TemStr.PadLeft(127, Convert.ToChar(" ")); APIClass.mciSendString("play media", TemStr, TemStr.Length, 0); mc.state = State.mPlaying; } //停止 public void Stop() { TemStr = ""; TemStr = TemStr.PadLeft(128, Convert.ToChar(" ")); ilong = APIClass.mciSendString("close media", TemStr, 128, 0); ilong = APIClass.mciSendString("close all", TemStr, 128, 0); mc.state = State.mStop; } public void Puase() { TemStr = ""; TemStr = TemStr.PadLeft(128, Convert.ToChar(" ")); ilong = APIClass.mciSendString("pause media", TemStr, TemStr.Length, 0); mc.state = State.mPuase; } private string GetCurrPath(string name) { if (name.Length < 1) return ""; name = name.Trim(); name = name.Substring(0, name.Length - 1); return name; } //总时间 public int Duration { get { durLength = ""; durLength = durLength.PadLeft(128, Convert.ToChar(" ")); APIClass.mciSendString("status media length", durLength, durLength.Length, 0); durLength = durLength.Trim(); if (durLength == "") return 0; return (int)(Convert.ToDouble(durLength) / 1000f); } } //当前时间 public int CurrentPosition { get { durLength = ""; durLength = durLength.PadLeft(128, Convert.ToChar(" ")); APIClass.mciSendString("status media position", durLength, durLength.Length, 0); mc.iPos = (int)(Convert.ToDouble(durLength) / 1000f); return mc.iPos; } } } 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 ); } }