C# LnkHelper

using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.Win32;
using System.Runtime.InteropServices;
using System.IO;

//private void button1_Click(object sender, EventArgs e)
//{
//    Shortcut.CreateShortcut(Shortcut.GetDeskDir() + "\\初学VC记录点滴.lnk", @"http://blog.csdn.net/testcs_dn", Shortcut.GetDeskDir(), "初学VC记录点滴", AppDomain.CurrentDomain.BaseDirectory + "favicon.ico");
//    MessageBox.Show("创建成功！");
//}

//private void button2_Click(object sender, EventArgs e)
//{
//    if (Shortcut.AddFavorites("http://blog.csdn.net/testcs_dn", "初学VC记录点滴", null, AppDomain.CurrentDomain.BaseDirectory + "favicon.ico"))
//    {
//        MessageBox.Show("添加成功！");

//    }
//    else
//    {
//        MessageBox.Show("添加失败");
//    }
//}

//private void button3_Click(object sender, EventArgs e)
//{
//    if (Shortcut.CreateProgramsShortcut("http://blog.csdn.net/testcs_dn", "初学VC记录点滴", "初学VC记录点滴", AppDomain.CurrentDomain.BaseDirectory + "favicon.ico"))
//    {
//        MessageBox.Show("添加成功！");

//    }
//    else
//    {
//        MessageBox.Show("添加失败");
//    }
//}

public class Shortcut
{
    [StructLayout(LayoutKind.Sequential)]
    public struct FILETIME
    {
        uint dwLowDateTime;
        uint dwHighDateTime;
    }

    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
    public struct WIN32_FIND_DATA
    {
        public const int MAX_PATH = 260;

        uint dwFileAttributes;
        FILETIME ftCreationTime;
        FILETIME ftLastAccessTime;
        FILETIME ftLastWriteTime;
        uint nFileSizeHight;
        uint nFileSizeLow;
        uint dwOID;

        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = MAX_PATH)]
        string cFileName;
    }

    [ComImport]
    [Guid("0000010c-0000-0000-c000-000000000046")]
    [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IPersist
    {
        [PreserveSig]
        void GetClassID(out Guid pClassID);
    }

    [ComImport]
    [Guid("0000010b-0000-0000-C000-000000000046")]
    [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IPersistFile
        : IPersist
    {
        new void GetClassID(out Guid pClassID);

        [PreserveSig]
        int IsDirty();

        [PreserveSig]
        void Load(
            [MarshalAs(UnmanagedType.LPWStr)] string pszFileName,
            uint dwMode);

        [PreserveSig]
        void Save(
            [MarshalAs(UnmanagedType.LPWStr)] string pszFileName,
            [MarshalAs(UnmanagedType.Bool)] bool fRemember);

        [PreserveSig]
        void SaveCompleted([MarshalAs(UnmanagedType.LPWStr)] string pszFileName);

        [PreserveSig]
        void GetCurFile([MarshalAs(UnmanagedType.LPWStr)] string ppszFileName);
    }

    [ComImport]
    [Guid("000214F9-0000-0000-C000-000000000046")]
    [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IShellLink
    {
        [PreserveSig]
        void GetPath(
            [MarshalAs(UnmanagedType.LPWStr, SizeParamIndex = 1)] out string pszFile,
            int cch,
            ref WIN32_FIND_DATA pfd,
            uint fFlags);

        [PreserveSig]
        void GetIDList(out IntPtr ppidl);

        [PreserveSig]
        void SetIDList(IntPtr ppidl);

        [PreserveSig]
        void GetDescription(
            [MarshalAs(UnmanagedType.LPWStr, SizeParamIndex = 1)] out string pszName,
            int cch);

        [PreserveSig]
        void SetDescription(
            [MarshalAs(UnmanagedType.LPWStr)] string pszName);

        [PreserveSig]
        void GetWorkingDirectory(
            [MarshalAs(UnmanagedType.LPWStr, SizeParamIndex = 1)] out string pszDir,
            int cch);

        [PreserveSig]
        void SetWorkingDirectory(
            [MarshalAs(UnmanagedType.LPWStr)] string pszDir);

        [PreserveSig]
        void GetArguments(
            [MarshalAs(UnmanagedType.LPWStr, SizeParamIndex = 1)] out string pszArgs,
            int cch);

        [PreserveSig]
        void SetArguments(
            [MarshalAs(UnmanagedType.LPWStr)] string pszArgs);

        [PreserveSig]
        void GetHotkey(out ushort pwHotkey);

        [PreserveSig]
        void SetHotkey(ushort wHotkey);

        [PreserveSig]
        void GetShowCmd(out int piShowCmd);

        [PreserveSig]
        void SetShowCmd(int iShowCmd);

        [PreserveSig]
        void GetIconLocation(
            [MarshalAs(UnmanagedType.LPWStr, SizeParamIndex = 1)] out string pszIconPath,
            int cch,
            out int piIcon);

        [PreserveSig]
        void SetIconLocation(
            [MarshalAs(UnmanagedType.LPWStr)] string pszIconPath,
            int iIcon);

        [PreserveSig]
        void SetRelativePath(
            [MarshalAs(UnmanagedType.LPWStr)] string pszPathRel,
            uint dwReserved);

        [PreserveSig]
        void Resolve(
            IntPtr hwnd,
            uint fFlags);

        [PreserveSig]
        void SetPath(
            [MarshalAs(UnmanagedType.LPWStr)] string pszFile);
    }

    [GuidAttribute("00021401-0000-0000-C000-000000000046")]
    [ClassInterfaceAttribute(ClassInterfaceType.None)]
    [ComImportAttribute()]
    public class CShellLink
    {
    }
    public static bool CreateShortcut2(string targetPath)
    {
        string lnkname = Path.GetFileNameWithoutExtension(targetPath);
        Shortcut.CreateShortcut(Shortcut.GetDeskDir() +string.Format( @"\{0}.lnk", lnkname), targetPath, Shortcut.GetDeskDir(), lnkname);
        return true;
    }
    public const int SW_SHOWNORMAL = 1;
    /// <summary>
    /// 创建快捷方式。
    /// </summary>
    /// <param name="shortcutPath">快捷方式路径。</param>
    /// <param name="targetPath">目标路径。</param>
    /// <param name="workingDirectory">工作路径。</param>
    /// <param name="description">快捷键描述。</param>
    public static bool CreateShortcut(string shortcutPath, string targetPath, string workingDirectory, string description, string iconLocation = null)
    {
        try
        {
            CShellLink cShellLink = new CShellLink();
            IShellLink iShellLink = (IShellLink)cShellLink;
            iShellLink.SetDescription(description);
            iShellLink.SetShowCmd(SW_SHOWNORMAL);
            iShellLink.SetPath(targetPath);
            iShellLink.SetWorkingDirectory(workingDirectory);

            if (!string.IsNullOrEmpty(iconLocation))
            {
                iShellLink.SetIconLocation(iconLocation, 0);
            }

            IPersistFile iPersistFile = (IPersistFile)iShellLink;
            iPersistFile.Save(shortcutPath, false);
            Marshal.ReleaseComObject(iPersistFile);
            iPersistFile = null;
            Marshal.ReleaseComObject(iShellLink);
            iShellLink = null;
            Marshal.ReleaseComObject(cShellLink);
            cShellLink = null;
            return true;
        }
        catch //(System.Exception ex)
        {
            return false;
        }
    }

    /// <summary>
    /// 创建桌面快捷方式
    /// </summary>
    /// <param name="targetPath">可执行文件路径</param>
    /// <param name="description">快捷方式名称</param>
    /// <param name="iconLocation">快捷方式图标路径</param>
    /// <param name="workingDirectory">工作路径</param>
    /// <returns></returns>
    public static bool CreateDesktopShortcut(string targetPath, string description, string iconLocation = null, string workingDirectory = null)
    {
        if (string.IsNullOrEmpty(workingDirectory))
        {
            workingDirectory = Shortcut.GetDeskDir();
        }
        return Shortcut.CreateShortcut(Shortcut.GetDeskDir() + "\\" + description + ".lnk", targetPath, workingDirectory, description, iconLocation);
    }

    /// <summary>
    /// 创建程序菜单快捷方式
    /// </summary>
    /// <param name="targetPath">可执行文件路径</param>
    /// <param name="description">快捷方式名称</param>
    /// <param name="menuName">程序菜单中子菜单名称，为空则不创建子菜单</param>
    /// <param name="iconLocation">快捷方式图标路径</param>
    /// <param name="workingDirectory">工作路径</param>
    /// <returns></returns>
    public static bool CreateProgramsShortcut(string targetPath, string description, string menuName, string iconLocation = null, string workingDirectory = null)
    {
        if (string.IsNullOrEmpty(workingDirectory))
        {
            workingDirectory = Shortcut.GetProgramsDir();
        }
        string shortcutPath = Shortcut.GetProgramsDir();
        if (!string.IsNullOrEmpty(menuName))
        {
            shortcutPath += "\\" + menuName;
            if (!System.IO.Directory.Exists(shortcutPath))
            {
                try
                {
                    System.IO.Directory.CreateDirectory(shortcutPath);
                }
                catch //(System.Exception ex)
                {
                    return false;
                }
            }
        }
        shortcutPath += "\\" + description + ".lnk";
        return Shortcut.CreateShortcut(shortcutPath, targetPath, workingDirectory, description, iconLocation);
    }

    public static bool AddFavorites(string url, string description, string folderName, string iconLocation = null, string workingDirectory = null)
    {
        if (string.IsNullOrEmpty(workingDirectory))
        {
            workingDirectory = Shortcut.GetProgramsDir();
        }
        string shortcutPath = Shortcut.GetFavoriteDir();
        if (!string.IsNullOrEmpty(folderName))
        {
            shortcutPath += "\\" + folderName;
            if (!System.IO.Directory.Exists(shortcutPath))
            {
                try
                {
                    System.IO.Directory.CreateDirectory(shortcutPath);
                }
                catch //(System.Exception ex)
                {
                    return false;
                }
            }
        }
        shortcutPath += "\\" + description + ".lnk";
        return Shortcut.CreateShortcut(shortcutPath, url, workingDirectory, description, iconLocation);
    }

    internal const uint SHGFP_TYPE_CURRENT = 0;
    internal const int MAX_PATH = 260;
    internal const uint CSIDL_COMMON_STARTMENU = 0x0016;              // All Users\Start Menu
    internal const uint CSIDL_COMMON_PROGRAMS = 0x0017;               // All Users\Start Menu\Programs
    internal const uint CSIDL_COMMON_DESKTOPDIRECTORY = 0x0019;       // All Users\Desktop
    internal const uint CSIDL_PROGRAM_FILES = 0x0026;                 // C:\Program Files
    internal const uint CSIDL_FLAG_CREATE = 0x8000;                   // new for Win2K, or this in to force creation of folder
    internal const uint CSIDL_COMMON_FAVORITES = 0x001f;              // All Users Favorites

    [DllImport("shell32.dll", CharSet = CharSet.Unicode, PreserveSig = false)]
    internal static extern void SHGetFolderPathW(
        IntPtr hwndOwner,
        int nFolder,
        IntPtr hToken,
        uint dwFlags,
        IntPtr pszPath);

    internal static string SHGetFolderPath(int nFolder)
    {
        string pszPath = new string(' ', MAX_PATH);
        IntPtr bstr = Marshal.StringToBSTR(pszPath);
        SHGetFolderPathW(IntPtr.Zero, nFolder, IntPtr.Zero, SHGFP_TYPE_CURRENT, bstr);
        string path = Marshal.PtrToStringBSTR(bstr);
        int index = path.IndexOf('\0');
        string path2 = path.Substring(0, index);
        Marshal.FreeBSTR(bstr);
        return path2;
    }


    public static string GetSpecialFolderPath(uint csidl)
    {
        return SHGetFolderPath((int)(csidl | CSIDL_FLAG_CREATE));
    }

    public static string GetDeskDir()
    {
        return GetSpecialFolderPath(CSIDL_COMMON_DESKTOPDIRECTORY);
    }

    public static string GetProgramsDir()
    {
        return GetSpecialFolderPath(CSIDL_COMMON_PROGRAMS);
    }

    public static string GetFavoriteDir()
    {
        return GetSpecialFolderPath(CSIDL_COMMON_FAVORITES);
    }
}