Removing file to trash in Windows x64 in C #

Question

I have this class that seems to work fine on the non-64 bit version.

using System;
using System.Runtime.InteropServices;

namespace DeleteToRecycleBin
{
/// <summary>
/// Send files directly to the recycle bin.
/// </summary>
public class RecybleBin
{

    /// <summary>
    /// Possible flags for the SHFileOperation method.
    /// </summary>
    [Flags]
    public enum FileOperationFlags: ushort 
    {
        /// <summary>
        /// Do not show a dialog during the process
        /// </summary>
        FOF_SILENT =                0x0004,
        /// <summary>
        /// Do not ask the user to confirm selection
        /// </summary>
        FOF_NOCONFIRMATION =        0x0010,
        /// <summary>
        /// Delete the file to the recycle bin.  (Required flag to send a file to the bin
        /// </summary>
        FOF_ALLOWUNDO =             0x0040,
        /// <summary>
        /// Do not show the names of the files or folders that are being recycled.
        /// </summary>
        FOF_SIMPLEPROGRESS =        0x0100,
        /// <summary>
        /// Surpress errors, if any occur during the process.
        /// </summary>
        FOF_NOERRORUI =             0x0400,
        /// <summary>
        /// Warn if files are too big to fit in the recycle bin and will need
        /// to be deleted completely.
        /// </summary>
        FOF_WANTNUKEWARNING =       0x4000,
    }

    /// <summary>
    /// File Operation Function Type for SHFileOperation
    /// </summary>
    public enum FileOperationType: uint
    {
        /// <summary>
        /// Move the objects
        /// </summary>
        FO_MOVE =                   0x0001,
        /// <summary>
        /// Copy the objects
        /// </summary>
        FO_COPY =                   0x0002,
        /// <summary>
        /// Delete (or recycle) the objects
        /// </summary>
        FO_DELETE =                 0x0003,
        /// <summary>
        /// Rename the object(s)
        /// </summary>
        FO_RENAME =                 0x0004,
    }



    /// <summary>
    /// SHFILEOPSTRUCT for SHFileOperation from COM
    /// </summary>
    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto, Pack = 1)]
    private struct SHFILEOPSTRUCT
    {

        public IntPtr hwnd;
        [MarshalAs(UnmanagedType.U4)]
        public FileOperationType wFunc;
        public string pFrom;
        public string pTo;
        public FileOperationFlags fFlags;
        [MarshalAs(UnmanagedType.Bool)]
        public readonly bool fAnyOperationsAborted;
        public readonly IntPtr hNameMappings;
        public readonly string lpszProgressTitle;
    }

    [DllImport("shell32.dll", CharSet = CharSet.Auto)]
    private static extern int SHFileOperation(ref SHFILEOPSTRUCT FileOp);

    /// <summary>
    /// Send file to recycle bin
    /// </summary>
    /// <param name="path">Location of directory or file to recycle</param>
    /// <param name="flags">FileOperationFlags to add in addition to FOF_ALLOWUNDO</param>
    public static bool Send(string path, FileOperationFlags flags)
    {
        try
        {
            SHFILEOPSTRUCT fs = new SHFILEOPSTRUCT
                                    {
                                        wFunc = FileOperationType.FO_DELETE,
                                        pFrom = path + '\0' + '\0',
                                        fFlags = FileOperationFlags.FOF_ALLOWUNDO | flags
                                    };

            // important to double-terminate the string.
            SHFileOperation(ref fs);
            return true;
        }
        catch (Exception)
        {
            return false;
        }
    }

    /// <summary>
    /// Send file to recycle bin.  Display dialog, display warning if files are too big to fit (FOF_WANTNUKEWARNING)
    /// </summary>
    /// <param name="path">Location of directory or file to recycle</param>
    public static bool Send(string path) {
        return Send(path, FileOperationFlags.FOF_NOCONFIRMATION | FileOperationFlags.FOF_WANTNUKEWARNING);
    }

    /// <summary>
    /// Send file silently to recycle bin.  Surpress dialog, surpress errors, delete if too large.
    /// </summary>
    /// <param name="path">Location of directory or file to recycle</param>
    public static bool SendSilent(string path)
    {
        return Send(path, FileOperationFlags.FOF_NOCONFIRMATION | FileOperationFlags.FOF_NOERRORUI | FileOperationFlags.FOF_SILENT);

    }
}

}

Any way to fix this so that it works well on x64 too? I tried moving ushort to ulong and a couple of other modifications, but this does not work.

I know that there are other solutions that require a link to Microsoft.VisualBasic, but I would prefer to use p / invoke.

CORRECTED RESPONSE:

x64, SHFILEOPSTRUCT Pack = 1, . , , , : Pack = 1 . SHFileOperation, . , , , 32 64 .

Answer 1

PInvoke? FILEOPSTRUCT, Unicode -. , charset = auto ... ANSI 32 , Unicode 64 - - .

; , Visual Basic ... , , DLL - , - .

Answer 2

, .NET ... Microsoft.VisualBasic. , Microsoft.VisualBasic.FileIO.

using Microsoft.VisualBasic.FileIO;

// class declaration, method start here

// Send file to recycle bin without dialog
FileSystem.DeleteFile("pathToFile", UIOption.OnlyErrorDialogs, RecycleOption.SendToRecycleBin);

// Send file to recycle bin without dialog
FileSystem.DeleteFile("pathToFile", UIOption.AllDialogs, RecycleOption.SendToRecycleBin);

// Directories are the same, but with DeleteDirectory instead