C# Code:


/// <summary>
/// Converts file and directory paths to their respective
/// long and short name versions.
/// 文件或目录的长文件名与短文件名互转换类
/// </summary>
/// <remarks>This class uses InteropServices to call GetLongPathName and GetShortPathName</remarks>
public class ShellPathNameConvert
{
   [DllImport("kernel32.dll")]
   static extern uint GetLongPathName(string shortname, StringBuilder
   longnamebuff, uint buffersize);
   
   [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
   public static extern int GetShortPathName(
   [MarshalAs(UnmanagedType.LPTStr)]
   string path,
   [MarshalAs(UnmanagedType.LPTStr)]
   StringBuilder shortPath,
   int shortPathLength);
   
   /// <summary>
   /// The ToShortPathNameToLongPathName function retrieves the long path form of a specified short input path
   /// </summary>
   /// <param name="shortName">The short name path</param>
   /// <returns>A long name path string</returns>
   public static string ToLongPathName(string shortName)
   {
      StringBuilder longNameBuffer = new StringBuilder(256);
      uint bufferSize = (uint)longNameBuffer.Capacity;
      
      GetLongPathName(shortName, longNameBuffer, bufferSize);
      
      return longNameBuffer.ToString();
   }
   
   /// <summary>
   /// The ToLongPathNameToShortPathName function retrieves the short path form of a specified long input path
   /// </summary>
   /// <param name="longName">The long name path</param>
   /// <returns>A short name path string</returns>
   public static string ToShortPathName(string longName)
   {
      StringBuilder shortNameBuffer = new StringBuilder(256);
      int bufferSize = shortNameBuffer.Capacity;
      
      int result = GetShortPathName(longName, shortNameBuffer, bufferSize);
      
      return shortNameBuffer.ToString();
   }
}


//来源:C/S框架网(www.csframework.com) QQ:1980854898