Сократить длинное имя файла с помощью kernel32.dll в c# ⇐ C#

[Anonymous]

Я пытаюсь преобразовать длинный путь файла в короткий путь файла. Попробовал все подписи getShortPathName, доступные в Kernel32.dll, упомянутые ниже. Но все возвращают пустую строку вместо короткого пути. мой код. < /p>

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

using System.Runtime.InteropServices;

namespace WindowsFormsApp1
{
public partial class Form2 : Form
{
[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
static extern uint GetShortPathName(
[MarshalAs(UnmanagedType.LPTStr)]
string lpszLongPath,
[MarshalAs(UnmanagedType.LPTStr)]
StringBuilder lpszShortPath,
uint cchBuffer);

[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
static extern uint GetShortPathName(string lpszLongPath, char[] lpszShortPath, int cchBuffer);

[DllImport("kernel32.dll", CharSet = CharSet.Unicode, EntryPoint = "GetShortPathNameW",
SetLastError = true)]
static extern int GetShortPathName(string pathName, System.Text.StringBuilder shortName, int
cbShortName);

public Form2()
{
InitializeComponent();
}

private void Form2_Load(object sender, EventArgs e)
{
string longFilePath = @"C:\E\Authors files\GOLD\ddd Retail Leases\ddd Owned or Co-Owned Centres (including Property Income Fund Properties) – Managed by ddd\Garden City Booragoon (WA)\Specialty Leases & Deeds\Shop 12A\35120-#5337137, v1 _VICProduction1_ - Shop xxx - Garden City, Booragoon - D.C.K Australia Pty Ltd t_as Lovisa - Executed Deed of Assignment and Variation of Lease and Consent to Assignment - WorkSite Acrobat Integration.pdf";

string s1 = ShortPath(longFilePath);
string s2=ToShortPathName(longFilePath);
string s3 = GetShortPathName(longFilePath);

}

public static string ToShortPathName(string longName)
{
uint bufferSize = 256;
StringBuilder shortNameBuffer = new StringBuilder((int)bufferSize);
GetShortPathName(longName, shortNameBuffer, bufferSize);
return shortNameBuffer.ToString();
}

public string ShortPath(string longpath)
{
char[] buffer = new char[256];
GetShortPathName(longpath, buffer, buffer.Length);
return new string(buffer);
}

public static string GetShortPathName(string longFileName)
{
uint bufferSize = 256;
StringBuilder shortNameBuffer = new StringBuilder((int)bufferSize);
uint result = GetShortPathName(longFileName, shortNameBuffer, bufferSize);
return shortNameBuffer.ToString();
}

}
}


Подробнее здесь: https://stackoverflow.com/questions/587 ... in-c-sharp