使用 C# 访问 iTunes 中的歌曲和播放列表

• 下载源代码文件 - 131 Kb
• 下载演示项目 - 27.6 Kb

引言

这是一个简单的示例，展示了如何与 iTunes 版本 6 进行交互。该示例展示了如何使用 C# 连接到 iTunes 版本 6，以及如何获取 iTunes 库或已保存播放列表中的歌曲列表。

该项目是在 VS 2005 中构建的。需要将 COM 对象 ITunes 1.6 的引用添加到您的项目中。您可以从 这里 获取 iTunes SDK。压缩包中包含的帮助文件非常有用。

在互联网上搜索，我找到了 这个 网站，它帮助我开始了这个小项目。

使用代码

我认为代码中的注释已经足够清楚。

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.IO;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using iTunesLib;
namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
             InitializeComponent();
        }
        // initialize Itunes application connection
        iTunesApp itunes = new iTunesLib.iTunesApp();
        private void Form1_Load(object sender, EventArgs e)
        {
             // get main library playlist
             IITLibraryPlaylist mainLibrary = itunes.LibraryPlaylist;
             // get list of all playlists defined in 
             // Itunes and add them to the combobox
             foreach (IITPlaylist pl in itunes.LibrarySource.Playlists)
             {
                   comboBox1.Items.Add(pl.Name);
             }
             // get the tracks within the mainlibrary
             GetTracks((IITPlaylist)mainLibrary);
             // set the datagridview1 datasource to the datatable.
             dataGridView1.DataSource = dataTable1;
        }

        // getthe tracks from the the specified playlist
        private void GetTracks(IITPlaylist playlist)
        {
             long totalfilesize = 0;
             dataTable1.Rows.Clear();
             // get the collection of tracks from the playlist
             IITTrackCollection tracks = playlist.Tracks;
             int numTracks = tracks.Count;
             for (int currTrackIndex = 1; 
                 currTrackIndex <= numTracks; currTrackIndex++)             
             {
                  DataRow drnew = dataTable1.NewRow(); 
                  // get the track from the current tracklist                 
                  IITTrack currTrack = tracks[currTrackIndex];
                  drnew["artist"] = currTrack.Artist;
                  drnew["song name"] = currTrack.Name;
                  drnew["album"] = currTrack.Album;
                  drnew["genre"] = currTrack.Genre;
                  // if track is a fiile, then get the file 
                  // location on the drive. 
                  if (currTrack.Kind == ITTrackKind.ITTrackKindFile)
                  {
                      IITFileOrCDTrack file = (IITFileOrCDTrack)currTrack;
                      if (file.Location != null)
                      {
                           FileInfo fi = new FileInfo(file.Location);
                               if (fi.Exists)
                               {
                                    drnew["FileLocation"] = file.Location;
                                    totalfilesize += fi.Length;
                               }
                               else
                                    drnew["FileLocation"] = 
                                             "not found " + file.Location;
                      }
                  }
                  dataTable1.Rows.Add(drnew);
              }
              lbl_numsongs.Text = 
                  "number of songs: " + dataTable1.Rows.Count.ToString() + 
                  ", total file size: " + 
                  (totalfilesize / 1024.00 / 1024.00).ToString("#,### mb");
          }
          private void comboBox1_SelectedIndexChanged(object sender, 
                                                              EventArgs e)
          {
              // get list of tracks from selected playlist
              string playlist = comboBox1.SelectedItem.ToString();
              foreach (IITPlaylist pl in itunes.LibrarySource.Playlists)
              {
                   if (pl.Name == playlist)
                   {
                        GetTracks(pl);
                        break;
                   }
              }
          }
     }
}

希望对您有所帮助，欢迎提出任何意见/反馈。