【原】基于Windows Media Player, 写自己的播放器【有源码，可下载整个工程】

最近有客户问我，怎么把Windows Media Player 嵌套在自己的项目中。

以前我在Delphi下玩过Windows Media Player，可是在Microsoft Visual Studio 2008 没有测试过。

到网上搜索了一把，果然得到很多例子。

其中CSDN上有个例子写的不错，不过要扣5分【我就不去赚分了，呵呵】，这个是CSDN上地地址：
http://download.csdn.net/source/677561
下载文件名是： Enhanced+Windows+Media+Player+using+VS+2005+in+C#.zip

我这个例子就是用这个CSDN上提供的例子，是基于Microsoft Visual Studio 2005下开发的，我只是简单的把这个例子更新到Microsoft Visual Studio 2008 下，不过有点小麻烦，还好，我已经解决了。

不多说了，直接上代码，

Windows Media Player
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Threading;
using AxWMPLib;

namespace MediaPlayer
{

public partial class Form1 : Form
{
public static Form1 form1;
public string oldPath;
//To Load all Songs specified in Default Path
public DelegateLoadSongs m_loadSongs;
public delegate void DelegateLoadSongs();
//Thread used in loading all songs in Default Path.
public Thread execloadSongs;
public ToolStripMenuItem parentItem;
//To Add individual song as a New MenuItem
public DelegateAddSong m_AddSongs;
public delegate void DelegateAddSong(string path);
public Form1()
{
InitializeComponent();
}

private void openToolStripMenuItem_Click(object sender, EventArgs e)
{
//To Select Songs.
bool isFileExist = false;
WMPLib.IWMPPlaylistCollection playlistColl;
WMPLib.IWMPPlaylist playlist = axWindowsMediaPlayer1.newPlaylist("Test", "");
if (openFileDialog1.ShowDialog() != DialogResult.Cancel)
{
//If multiple Songs are selected,
//than it will create a New Playlist and add those songs to that list and set it as Current PlayList.
if (openFileDialog1.FileNames.Length > 1)
{
playlistColl = axWindowsMediaPlayer1.playlistCollection;
playlist = playlistColl.newPlaylist("Test");
if (recentFilesToolStripMenuItem.DropDownItems.Count == 0)
{
foreach (string f in openFileDialog1.FileNames)
{
recentFilesToolStripMenuItem.DropDownItems.Add(f, null, recentFilesMenuItem_Click);
RecentListcontextMenuStrip.Items.Add(f, null, recentFilesMenuItem_Click);
WMPLib.IWMPMedia media = axWindowsMediaPlayer1.newMedia(f);
playlist.appendItem(media);
}
}
else
{
foreach (string f in openFileDialog1.FileNames)
{
isFileExist = false;
WMPLib.IWMPMedia media = axWindowsMediaPlayer1.newMedia(f);
playlist.appendItem(media);
//To add to Recent Play List.
foreach (ToolStripItem item in recentFilesToolStripMenuItem.DropDownItems)
{
if (item.Text == f)
{
isFileExist = true;
break;
}
}
//If selected Song is not Present in Recent Songs List previously,than it will add it.
if (!isFileExist)
{
recentFilesToolStripMenuItem.DropDownItems.Add(f, null, recentFilesMenuItem_Click);
RecentListcontextMenuStrip.Items.Add(f, null, recentFilesMenuItem_Click);
}
}
}
axWindowsMediaPlayer1.currentPlaylist = playlist;
axWindowsMediaPlayer1.Ctlcontrols.play();
}
//This Will add selected song to Recent PlayList and Plays it.
else if (openFileDialog1.FileNames.Length == 1)
{
axWindowsMediaPlayer1.URL = openFileDialog1.FileName;
form1.Text = axWindowsMediaPlayer1.URL;
if (recentFilesToolStripMenuItem.DropDownItems.Count == 0)
{
recentFilesToolStripMenuItem.DropDownItems.Add(openFileDialog1.FileName, null, recentFilesMenuItem_Click);
RecentListcontextMenuStrip.Items.Add(openFileDialog1.FileName, null, recentFilesMenuItem_Click);
}
else
{
foreach (ToolStripItem item in recentFilesToolStripMenuItem.DropDownItems)
{
if (item.Text == openFileDialog1.FileName)
{
isFileExist = true;
break;
}
}
if (!isFileExist)
{
recentFilesToolStripMenuItem.DropDownItems.Add(openFileDialog1.FileName, null, recentFilesMenuItem_Click);
RecentListcontextMenuStrip.Items.Add(openFileDialog1.FileName, null, recentFilesMenuItem_Click);
}
}
}
form1.Text = axWindowsMediaPlayer1.URL;
}
}
private void recentFilesMenuItem_Click(object sender, EventArgs e)
{
try
{
//This Will just plays the selected song from Recent PlayList.
bool isFileExist = false;
if (File.Exists(((ToolStripItem)sender).Text))
{
axWindowsMediaPlayer1.URL = ((ToolStripItem)sender).Text;
form1.Text = ((ToolStripItem)sender).Text;
foreach (ToolStripItem item in recentFilesToolStripMenuItem.DropDownItems)
{
if (item.Text == ((ToolStripItem)sender).Text)
{
isFileExist = true;
break;
}
}
if (!isFileExist)
{
recentFilesToolStripMenuItem.DropDownItems.Add(((ToolStripItem)sender).Text, null, recentFilesMenuItem_Click);
RecentListcontextMenuStrip.Items.Add(((ToolStripItem)sender).Text, null, recentFilesMenuItem_Click);
}
}
}
catch { }
}

private void playToolStripMenuItem_Click(object sender, EventArgs e)
{
//To Play the selected song.
axWindowsMediaPlayer1.Ctlcontrols.play();
}

private void pauseToolStripMenuItem_Click(object sender, EventArgs e)
{
//To pause the selected song.
axWindowsMediaPlayer1.Ctlcontrols.pause();
}

private void stopToolStripMenuItem_Click(object sender, EventArgs e)
{
//To Stop the selected song.
axWindowsMediaPlayer1.Ctlcontrols.stop();
}

private void exitToolStripMenuItem_Click(object sender, EventArgs e)
{
//To Exit Application.
Application.Exit();
}

private void topMostToolStripMenuItem_Click(object sender, EventArgs e)
{
//To Show Media Player on top of other Windows.
if (topMostToolStripMenuItem.Checked)
{
topMostToolStripMenuItem.Checked = false;
form1.TopMost = false;
form1.ShowInTaskbar = true;
}
else
{
topMostToolStripMenuItem.Checked = true;
form1.TopMost = true;
form1.ShowInTaskbar = false;
}
}
private void opacityToolStripMenuItem_Click(object sender, EventArgs e)
{
//To Set Opacity of the Form.
if (opacityToolStripMenuItem.Checked)
{
opacityToolStripMenuItem.Checked = false;
form1.Opacity = 1;
}
else
{
opacityToolStripMenuItem.Checked = true;
form1.Opacity = 0;
}
}

private void showInTaToolStripMenuItem_Click(object sender, EventArgs e)
{
//To Set whether to display Form in TaskBar or not.
if (showInTaToolStripMenuItem.Checked)
{
showInTaToolStripMenuItem.Checked = false;
form1.ShowInTaskbar = false;
}
else
{
showInTaToolStripMenuItem.Checked = true;
form1.ShowInTaskbar = true;
}
}

private void axWindowsMediaPlayer1_MediaError(object sender, AxWMPLib._WMPOCXEvents_MediaErrorEvent e)
{
//Generic Error Message.
MessageBox.Show("Error occured

");
}

private void showBorderToolStripMenuItem_Click(object sender, EventArgs e)
{
//To Set whether Form Border should be displayed or not.
if (showBorderToolStripMenuItem.Checked)
{
showBorderToolStripMenuItem.Checked = false;
form1.FormBorderStyle = FormBorderStyle.None;
}
else
{
showBorderToolStripMenuItem.Checked = true;
form1.FormBorderStyle = FormBorderStyle.Sizable;
}

}
private void notifyIcon1_DoubleClick(object sender, EventArgs e)
{
//To Set Visibility of the Form.
try
{
if (form1.Visible)
{
form1.Visible = false;
form1.Opacity = 1;
}
else
{
form1.Visible = true;
}
}
catch
{ }
}

private void timer1_Tick(object sender, EventArgs e)
{
//To Change NotifyIcon Image.
try
{
Random r = new Random();
notifyIcon1.Icon = new Icon("..\\..\\Images\\" + r.Next(1,11) + ".ico");
}
catch { }
}

private void menuStrip1_MouseHover(object sender, EventArgs e)
{
//T Show Form Border.
form1.FormBorderStyle = FormBorderStyle.Sizable;
}

private void Form1_Load(object sender, EventArgs e)
{
//To Load Recent PlayList Items,Default songs Path from the File.
if (File.Exists(@"c:\Media PlayList\List.txt"))
{
StreamReader reader = new StreamReader(@"c:\Media PlayList\List.txt");
string fname = "";
while ((fname = reader.ReadLine()) != null)
{
if (!fname.StartsWith("----"))
{
recentFilesToolStripMenuItem.DropDownItems.Add(fname, null, recentFilesMenuItem_Click);
RecentListcontextMenuStrip.Items.Add(fname, null, recentFilesMenuItem_Click);
}
else
{
//Default Songs Path.
DefaultPathtoolStripTextBox.Text = fname.TrimStart('-');
//To Load all songs present in Default Songs Path.
DefaultPathtoolStripTextBox_KeyDown(sender, null);
}
}
reader.Close();
}

}

private void Form1_FormClosed(object sender, FormClosedEventArgs e)
{
//To Save Recent PlayList Items,Default Songs Path to the file.
if (!Directory.Exists(@"c:\Media PlayList"))
{
Directory.CreateDirectory(@"c:\Media PlayList");
}
File.Delete(@"c:\Media PlayList\List.txt");
File.Create(@"c:\Media PlayList\List.txt").Close();
System.IO.StreamWriter writer = new StreamWriter(@"c:\Media PlayList\List.txt");
foreach (ToolStripMenuItem fItem in recentFilesToolStripMenuItem.DropDownItems)
{
writer.WriteLine(fItem.Text);
}
writer.WriteLine("----" + DefaultPathtoolStripTextBox.Text.Trim());
writer.Close();
//To Kill the thread used to load Default Path Songs.
if (execloadSongs != null)
{
if (execloadSongs.IsAlive)
{
execloadSongs.Abort();
execloadSongs = null;
}
}
}

private void optionsToolStripMenuItem_Click(object sender, EventArgs e)
{
//To Show Form Border.
form1.FormBorderStyle = FormBorderStyle.Sizable;
}
private void DeleteFListToolStripMenuItem_Click(object sender, EventArgs e)
{
//To Delete Recent Songs List.
recentFilesToolStripMenuItem.DropDownItems.Clear();
File.Delete(@"c:\Media PlayList\List.txt");
}

private void axWindowsMediaPlayer1_MouseUpEvent(object sender, _WMPOCXEvents_MouseUpEvent e)
{
//To Set Visibility of Form's Border,MenuStrip.
if (menuStrip1.Visible)
{
if (!showBorderToolStripMenuItem.Checked)
{
menuStrip1.Visible = false;
form1.FormBorderStyle = FormBorderStyle.None;
axWindowsMediaPlayer1.uiMode = "None";
axWindowsMediaPlayer1.windowlessVideo = true;
}
}
else
{
if (!showBorderToolStripMenuItem.Checked)
{
menuStrip1.Visible = true;
form1.FormBorderStyle = FormBorderStyle.Sizable;
axWindowsMediaPlayer1.uiMode = "full";
axWindowsMediaPlayer1.windowlessVideo = false;
}
}
}
private void LoadAllSongs()
{
try
{
//To Load all songs present in Default Songs Path.
string paths = DefaultPathtoolStripTextBox.Text.Trim();
string[] allpaths = paths.Split(';');
foreach (string path in allpaths)
{
m_AddSongs = new DelegateAddSong(this.AddSong);
if (Directory.Exists(path))
{
DirectoryInfo dirinfo1 = new DirectoryInfo(Path.GetDirectoryName(path));
Image img = Image.FromFile("..\\..\\Images\\folder.gif");
parentItem = SongsListtoolStripMenuItem;
form1.getDirs(dirinfo1);
if (recursivelyToolStripMenuItem.Checked)
{
LoadAllSongs(SongsListtoolStripMenuItem);
}
}
}
}
catch { }
}
public void getDirs(DirectoryInfo d)
{
//To Load All Directories.
DirectoryInfo[] dirs = d.GetDirectories("*.*");
getFiles(d);
foreach (DirectoryInfo dir in dirs)
{
this.Invoke(m_AddSongs, new object[] { dir.FullName });
}
}
public void getFiles(DirectoryInfo d)
{
//To Load All Files in a Directory.
FileInfo[] files;
files = d.GetFiles("*.*");
foreach (FileInfo file in files)
{
String fileName = file.FullName;
this.Invoke(m_AddSongs, new object[] { file.FullName + "??" });
}
}
private void LoadAllSongs(ToolStripMenuItem item)
{
//Recursion used to load all directory's contents.
foreach (ToolStripMenuItem item1 in item.DropDownItems)
{
if (oldPath != item1.Text)
{
if (item1.Image != null)
{
parentItem = item1;
oldPath = item1.Text;
form1.getDirs(new DirectoryInfo(item1.Text));
LoadAllSongs(item1);
}
}
}
}
private void AddSong(string path)
{
try
{
//To add a song to the Default songs LIst
if (path.EndsWith("??"))
{
//To Add Files without any Image in it.
parentItem.DropDownItems.Add(path.TrimEnd('?'), null, recentFilesMenuItem_Click);
}
else
{
ToolStripMenuItem item = new ToolStripMenuItem();
Image img = Image.FromFile("..\\..\\Images\\folder.gif");
item.Text = path.TrimEnd('?');
item.Image = img;
parentItem.DropDownItems.Add(item);
}
}
catch { }
}
private void DefaultPathtoolStripTextBox_KeyDown(object sender, KeyEventArgs e)
{
//To Load all Songs,Once Default Songs Path is Changed.
if (e == null)
{
SongsListtoolStripMenuItem.DropDownItems.Clear();
m_loadSongs = new DelegateLoadSongs(this.LoadAllSongs);
ThreadStart ts = new ThreadStart(this.m_loadSongs);
execloadSongs = new Thread(ts);
execloadSongs.Start();
return;
}
if (e.KeyCode == Keys.Enter)
{
SongsListtoolStripMenuItem.DropDownItems.Clear();
m_loadSongs = new DelegateLoadSongs(this.LoadAllSongs);
ThreadStart ts = new ThreadStart(this.m_loadSongs);
execloadSongs = new Thread(ts);
execloadSongs.Start();
}
}

private void recursivelyToolStripMenuItem_Click(object sender, EventArgs e)
{
//To Set whether songs should be loaded recursively in Folders or not.
if (recursivelyToolStripMenuItem.Checked)
{
recursivelyToolStripMenuItem.Checked = false;
}
else
{
recursivelyToolStripMenuItem.Checked = true;
}
}
private void notifyIcon1_MouseClick(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Middle)
{
//To change the Player status on Click on NotifyIcon using Middle Mouse's Button.
if (axWindowsMediaPlayer1.status != "")
{
if (axWindowsMediaPlayer1.status.ToLower().StartsWith("playing"))
{
axWindowsMediaPlayer1.Ctlcontrols.pause();
}
else if (axWindowsMediaPlayer1.status.ToLower().StartsWith("paused"))
{
axWindowsMediaPlayer1.Ctlcontrols.play();
}
}
}
}
}
}

下面是整个工程，

http://files.cnblogs.com/OceanChen/WindowsMediaPlayer.rar

注意：在运行工程之前，需要先添加AxInterop.WMPLib.dll，Interop.MediaPlayer.dll，Interop.WMPLib.dll引用