ProgramManagement

1.0.9

Private/AddLastWriteTimeToRegKeys.ps1

                                # From: https://gallery.technet.microsoft.com/scriptcenter/Get-Last-Write-Time-and-06dcf3fb

function AddLastWriteTimeToRegKeys {

    [CmdletBinding()]

    param ()

    # NOTE: If you use this method, do not import the Add-RegKeyMember function and Get-ChildItem proxy function

    Add-Type @"

using System; 

using System.Text;

using System.Runtime.InteropServices; 

namespace CustomNameSpace {

    public class advapi32 {

        [DllImport("advapi32.dll", CharSet = CharSet.Auto)]

        public static extern Int32 RegQueryInfoKey(

            Microsoft.Win32.SafeHandles.SafeRegistryHandle hKey,

            StringBuilder lpClass,

            [In, Out] ref UInt32 lpcbClass,

            UInt32 lpReserved,

            out UInt32 lpcSubKeys,

            out UInt32 lpcbMaxSubKeyLen,

            out UInt32 lpcbMaxClassLen,

            out UInt32 lpcValues,

            out UInt32 lpcbMaxValueNameLen,

            out UInt32 lpcbMaxValueLen,

            out UInt32 lpcbSecurityDescriptor,

            out Int64 lpftLastWriteTime

        );

    }

}

"@

    Update-TypeData -TypeName Microsoft.Win32.RegistryKey -MemberType ScriptProperty -MemberName LastWriteTime -Value {

        $LastWriteTime = $null

        $Return = [CustomNameSpace.advapi32]::RegQueryInfoKey(

            $this.Handle,

            $null,       # ClassName

            [ref] 0,     # ClassNameLength

            $null,  # Reserved

            [ref] $null, # SubKeyCount

            [ref] $null, # MaxSubKeyNameLength

            [ref] $null, # MaxClassLength

            [ref] $null, # ValueCount

            [ref] $null, # MaxValueNameLength 

            [ref] $null, # MaxValueValueLength 

            [ref] $null, # SecurityDescriptorSize

            [ref] $LastWriteTime

        )

        if ($Return -ne 0) {

            "[ERROR]"

        }

        else {

            # Return datetime object:

            [datetime]::FromFileTime($LastWriteTime)

        }

    }

    Update-TypeData -TypeName Microsoft.Win32.RegistryKey -MemberType ScriptProperty -MemberName ClassName -Value {

        $ClassLength = 255 # Buffer size (class name is rarely used, and when it is, I've never seen 

                            # it more than 8 characters. Buffer can be increased here, though. 

        $ClassName = New-Object System.Text.StringBuilder $ClassLength  # Will hold the class name

        $Return = [CustomNameSpace.advapi32]::RegQueryInfoKey(

            $this.Handle,

            $ClassName,

            [ref] $ClassLength,

            $null,  # Reserved

            [ref] $null, # SubKeyCount

            [ref] $null, # MaxSubKeyNameLength

            [ref] $null, # MaxClassLength

            [ref] $null, # ValueCount

            [ref] $null, # MaxValueNameLength 

            [ref] $null, # MaxValueValueLength 

            [ref] $null, # SecurityDescriptorSize

            [ref] $null  # LastWriteTime

        )

        if ($Return -ne 0) {

            "[ERROR]"

        }

        else {

            # Return class name

            $ClassName.ToString()

        }

    }

}

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