New Post: Detect Active user / Locked Screen / Not Logged On user

Hi I tried the following script

$UserNotificationStateSource = @'
using System;
using System.Runtime.InteropServices;
namespace QueryUser
{
    public class NotificationState
    {
        // http://msdn.microsoft.com/en-us/library/bb762533(v=vs.85).aspx
        public enum UserNotificationState
        {
            ScreenSaverOrLockedOrFastUserSwitching=1, FullScreenOrPresentationMode=2, RunningDirect3dFullScreen=3, PresentationMode=4, AcceptsNotifications=5, QuietTime=6, WindowsStoreAppRunning=7
        }
        // Only for Vista or above
        [DllImport("shell32.dll")]
        static extern int SHQueryUserNotificationState(out UserNotificationState pquns);
        public static UserNotificationState GetState()
        {
            UserNotificationState state;
            int returnVal = SHQueryUserNotificationState(out state);
            return state; 
        }
    }
}
'@
If (-not ([System.Management.Automation.PSTypeName]'QueryUser.NotificationState').Type) {
    Add-Type -TypeDefinition $UserNotificationStateSource -Language CSharp
}


$time = Get-date
$test = [QueryUser.NotificationState]::GetState()
$output = "$($test) - $($time)"
$output |Out-File -FilePath c:\test.log -Append

# Then use an if statement of some sort to determine what to do based on the result you get. 
# ScreenSaverOrLockedOrFastUserSwitching, FullScreenOrPresentationMode, RunningDirect3dFullScreen, PresentationMode, AcceptsNotifications, QuietTime, WindowsStoreAppRunning

I schedule it in my Windows 7 task scheduler and run as SYSTEM every 5 minutes.
My log file contains:

FullScreenOrPresentationMode - 01/16/2015 17:46:42
FullScreenOrPresentationMode - 01/16/2015 17:49:32
FullScreenOrPresentationMode - 01/16/2015 17:53:22
FullScreenOrPresentationMode - 01/16/2015 17:58:22
FullScreenOrPresentationMode - 01/16/2015 18:03:22
FullScreenOrPresentationMode - 01/16/2015 18:08:22
FullScreenOrPresentationMode - 01/16/2015 18:13:22
FullScreenOrPresentationMode - 01/16/2015 18:18:22
FullScreenOrPresentationMode - 01/16/2015 18:23:56

And it doesn't matter if I am logged on or not or if the screen is locked :-(