PoshCode Archive  Artifact [42b37d7d9c]

Artifact 42b37d7d9c6552318dd0a7944cb6c395e1a07c05737c0ad7ae5e3a24babbf1b8:

• File Detect-32-or-64-bits-.ps1 — part of check-in [e317c0c47e] at 2018-06-10 12:57:21 on branch trunk — Detect 32 or 64 bits Windows regardless of WoW64 with the PowerShell OSArchitecture function (user: unknown size: 2381)

# encoding: utf-8
# api: powershell
# title: 
# description: Detect 32 or 64 bits Windows – regardless of WoW64 – with the PowerShell OSArchitecture function
# version: 0.1
# type: function
# license: CC0
# x-poshcode-id: 1450
# x-archived: 2009-11-13T08:18:32
#
#
# Detect 32 or 64 bits Windows – regardless of WoW64 – with the PowerShell OSArchitecture function
# By Vincent Hoogendoorn
# See http://vincenth.net/blog/archive/2009/11/02/detect-32-or-64-bits-windows-regardless-of-wow64-with-the-powershell-osarchitecture-function.aspx for details.
# For the used InvokeCSharp function source, see http://vincenth.net/blog/archive/2009/10/27/call-inline-c-from-powershell-with-invokecsharp.aspx
# or search http://poshcode.org for InvokeCSharp

Function global:CurrentProcessIsWOW64
{
    # Use some inline C# code to call the unmanaged IsWow64Process() function in Kernel32.dll and return its result:
    $code = @"
        using System;
        using System.Runtime.InteropServices;
 
        public class Kernel32
        {
            [DllImport("kernel32.dll", SetLastError = true, CallingConvention = CallingConvention.Winapi)]
            [return: MarshalAs(UnmanagedType.Bool)]
            public static extern bool IsWow64Process([In] IntPtr hProcess, [Out] out bool lpSystemInfo);
 
            // This overload returns True if the current process is running on Wow, False otherwise
            public bool CurrentProcessIsWow64()
            {
                bool retVal;
                if (!(IsWow64Process(System.Diagnostics.Process.GetCurrentProcess().Handle, out retVal))) { throw new Exception("IsWow64Process() failed"); }
                return retVal;
            }
        }
"@
    InvokeCSharp -code $code -class 'Kernel32' -method 'CurrentProcessIsWow64'
}
 
Function global:ProcessArchitecture
{
    switch ([System.IntPtr]::Size)
    {
        4 { 32 }
        8 { 64 }
        default { throw "Unknown Process Architecture: $([System.IntPtr]::Size * 8) bits" }
    }
}
 
Function global:OSArchitecture
{
    if (((ProcessArchitecture) -eq 32) -and (CurrentProcessIsWOW64)) { 64 } else { ProcessArchitecture }
    # Note that on Vista, W2008 and later Windows versions, we could use (Get-WMIObject win32_operatingsystem).OSArchitecture.
    # We don't use that because we also support W2003
}