Simulates pressing scroll lock to prevent idle (screensaver etc.)

No-Idle.ps1

<#
.SYNOPSIS
Simulates pressing scroll lock to prevent idle.
.NOTES
Gathered from another source originally, unsure where
#>

[CmdletBinding()]
param (
    [Int]$Sleep = 240,
    [Int]$Index = 0,
    [Int]$announcementInterval = 10
)

function Log {
    param($log)
    Write-Information -MessageData $log -InformationAction Continue
}

try {
    $stopWatch = [system.diagnostics.stopwatch]::StartNew()
    $wShell = New-Object -com "Wscript.Shell"
} catch {
   Log "Could not start stopwatch or wscript.shell, exiting"
   exit 1
}

Clear-Host
Log "Starting Scroll Lock key toggle $(Get-Date)"

try {
    while ( $true )
    {
        Write-Host -NoNewLine "." -fore red
        $wShell.sendkeys("{SCROLLLOCK}")
        Start-Sleep -Milliseconds 200

        $wShell.sendkeys("{SCROLLLOCK}")
        Start-Sleep -Seconds $sleep

        # Announce runtime on an interval
        if ($stopWatch.IsRunning -and ((++$index % $announcementInterval) -eq 0))
        {
            Log "`nElapsed: $($stopwatch.Elapsed.ToString('dd\d\ hh\h\ mm\m\ ss\s'))"
        }
    }
} catch {
    Log "Error in while loop, exiting"
    exit 1
}