C# 获取媒体文件播放时长

引用：

Interop.Shell32.dll

方法：

 /// <summary>
         /// 获取媒体文件播放时长
         /// </summary>
         /// <param name="path">媒体文件路径</param>
         /// <returns></returns>
         public static string GetMediaTimeLen(string path)
         {
             try
             {
                 Shell32.Shell shell = new Shell32.Shell();

                 //文件路径

                 Shell32.Folder folder = shell.NameSpace(path.Substring(, path.LastIndexOf("\\")));

                 //文件名称

                 Shell32.FolderItem folderitem = folder.ParseName(path.Substring(path.LastIndexOf("\\") + ));

                 if (Environment.OSVersion.Version.Major >= )
                 {

                     return folder.GetDetailsOf(folderitem, );

                 }

                 else
                 {

                     return folder.GetDetailsOf(folderitem, );

                 }
             }
             catch (Exception ex)
             {
                 return null;
             }
         }

调用：

 string itemtimelen = GetMediaTimeLen(path);
 DateTime t1 = DateTime.Parse(itemtimelen);