Fast acquisition of LastWriteTime attribute value of files via Kernel32.dll

GetFileTime.ps1

$kernel32,$filetime = Add-Type -TypeDefinition @'
// Partial port of the C# example at
// https://www.pinvoke.net/default.aspx/kernel32.getfiletime
//
using System;
using System.Runtime.InteropServices;

public class Kernel32wrappers {
    [DllImport("kernel32.dll", SetLastError = true)]
    [return: MarshalAs(UnmanagedType.Bool)]
    public static extern bool CloseHandle(IntPtr handle);

    [DllImport("kernel32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall, SetLastError = true)]
    public static extern IntPtr CreateFile(string lpFileName,uint dwDesiredAccess,uint dwShareMode,IntPtr SecurityAttributes,uint dwCreationDisposition,uint dwFlagsAndAttributes,IntPtr hTemplateFile);

    [DllImport("kernel32.dll", SetLastError = true)]
    public static extern bool GetFileTime(IntPtr hFile,ref FILETIME lpCreationTime,ref FILETIME lpLastAccessTime,ref FILETIME lpLastWriteTime);
}

[StructLayout(LayoutKind.Sequential)]
public struct FILETIME
{
    public uint dwLowDateTime;
    public uint dwHighDateTime;
}
'@ -PassThru

foreach($filename in [System.IO.Directory]::EnumerateFiles($PWD)){
    try{
        $fileHandle = $kernel32::CreateFile($filename, 0, 7, [IntPtr]::Zero, 3, 0x80, [IntPtr]::Zero)
        $creation,$access,$write = 1..3 |ForEach-Object { $filetime::new() }
        $res = $kernel32::GetFileTime($fileHandle,[ref]$creation,[ref]$access,[ref]$write)
        if($res) {
            $lastWriteTime = [datetime]::FromFileTime((([long]$write.dwHighDateTime) -shl 32) + $write.dwLowDateTime)
        }
        else {
            $lastWriteTime = (Get-Item -LiteralPath $filename).LastWriteTime
        }
        [pscustomobject]@{
            Path = $filename
            LastWriteTime = $lastWriteTime
        }
    }
    finally{
        if($fileHandle){
            [void]$kernel32::CloseHandle($fileHandle)
        }
    }   
}