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@wendelb
Created October 11, 2014 14:29
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Auto-Lock your workstation after Idle-Timeout with PowerShell
#
# This background job automatically locks your Workstation after a specified amount of
# time. It will come in handy if you cannot access the screensaver settings due to policy
# restriction but want to lock your screen after a idle timeout. Or you could just
# press [Win]+[L] everytime you leave your desk ;) .
#
# start with
# powershell.exe -windowstyle hidden -executionpolicy Unrestricted P:\ATH\TO\logoff.ps1
#
# `-windowstyle hidden` will make your PowerShell disappear/run in background
# `-executionpolicy Unrestricted` will enable this PowerShell process to allow non-signed scripts
#
# This is the only setting: How long before locking?
# Alternative Options:
# * -Seconds 10 ( = 10 Seconds)
# * -Minutes 10 ( = 10 Minutes)
# * -Hours 10 ( = 10 Hours)
#
$idle_timeout = New-TimeSpan -Minutes 10
# DO NOT CHANGE ANYTHING BELOW THIS LINE
####################################################################################################################################################################
# This snippet is from http://stackoverflow.com/a/15846912
Add-Type @'
using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
namespace PInvoke.Win32 {
public static class UserInput {
[DllImport("user32.dll", SetLastError=false)]
private static extern bool GetLastInputInfo(ref LASTINPUTINFO plii);
[StructLayout(LayoutKind.Sequential)]
private struct LASTINPUTINFO {
public uint cbSize;
public int dwTime;
}
public static DateTime LastInput {
get {
DateTime bootTime = DateTime.UtcNow.AddMilliseconds(-Environment.TickCount);
DateTime lastInput = bootTime.AddMilliseconds(LastInputTicks);
return lastInput;
}
}
public static TimeSpan IdleTime {
get {
return DateTime.UtcNow.Subtract(LastInput);
}
}
public static int LastInputTicks {
get {
LASTINPUTINFO lii = new LASTINPUTINFO();
lii.cbSize = (uint)Marshal.SizeOf(typeof(LASTINPUTINFO));
GetLastInputInfo(ref lii);
return lii.dwTime;
}
}
}
}
'@
#End snippet
# Helper: Is currently locked?
$locked = 0;
do {
# 1st: How long is your computer currently idle?
$idle_time = [PInvoke.Win32.UserInput]::IdleTime;
#Write-Host ("Idle for " + $idle_time);
# Your computer is not locked, but idle time is longer than allowed? -> Lock it!
if (($locked -eq 0) -And ($idle_time -gt $idle_timeout)) {
# Lock it
rundll32.exe user32.dll,LockWorkStation
# Setting $locked to 1 will prevent it from relocking every 10 seconds
$locked = 1;
#Write-Host ("Locking");
}
# Your computer is idle for less than the allowed time -> in most cases this means it is unlocked and
# therefore ready to be locked again!
if ($idle_time -lt $idle_timeout) {
$locked = 0;
}
# Save the environment. Don't use 100% of a single CPU just for idle checking :)
Start-Sleep -Seconds 10
}
while (1 -eq 1)
@MindaugasPa
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Hello,

Is it posible to make this skript run as windows servise ?

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