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Add-Type -AssemblyName System.Windows.Forms
Add-Type @"
using System;
using System.Runtime.InteropServices;
public static class IdleTime {
[StructLayout(LayoutKind.Sequential)]
public struct LASTINPUTINFO {
public uint cbSize;
public uint dwTime;
}
[DllImport("user32.dll")]
public static extern bool GetLastInputInfo(ref LASTINPUTINFO plii);
public static uint GetIdleTime() {
LASTINPUTINFO lii = new LASTINPUTINFO();
lii.cbSize = (uint)System.Runtime.InteropServices.Marshal.SizeOf(typeof(LASTINPUTINFO));
GetLastInputInfo(ref lii);
return ((uint)Environment.TickCount - lii.dwTime) / 1000; // seconds
}
}
"@
function Start-Activity {
[CmdletBinding(DefaultParameterSetName="Activity")]
param(
[Parameter(Mandatory=$true, ParameterSetName="Activity")]
[double]$Hours,
[Parameter(Mandatory=$true, ParameterSetName="Activity")]
[double]$IntervalSeconds,
[Parameter(Mandatory=$true, ParameterSetName="TestIdle", HelpMessage="Prints idle time continuously.")]
[switch]$TestIdle
)
if ($PSCmdlet.ParameterSetName -eq "TestIdle") {
Write-Host "Idle monitoring started. Press Ctrl+C to stop."
while ($true) {
$idleSec = [IdleTime]::GetIdleTime()
Write-Host ("Idle time: {0} seconds" -f $idleSec) -NoNewline
Write-Host "`r" -NoNewline
Start-Sleep -Seconds 1
}
}
else {
Write-Host "Activity started"
$endTime = (Get-Date).AddHours($Hours)
$lastActionTime = Get-Date
while ((Get-Date) -lt $endTime) {
$remaining = $endTime - (Get-Date)
Write-Host ("Time left: {0:hh\:mm\:ss}" -f $remaining) -NoNewline
Write-Host "`r" -NoNewline
if ((Get-Date) - $lastActionTime -ge [TimeSpan]::FromSeconds($IntervalSeconds)) {
[System.Windows.Forms.SendKeys]::SendWait("+")
Start-Sleep -Milliseconds 100
$lastActionTime = Get-Date
}
Start-Sleep -Seconds 1
}
Write-Host "`nActivity finished"
}
}
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