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jcefoli/rdp-keepalive.ps1

Last active January 30, 2023 18:14
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RDP Keepalive using Kernel SetThreadExecutionState
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rdp-keepalive.ps1
$host.ui.RawUI.WindowTitle = "Idle Keepalive"
$dotNetCode = @'
[DllImport("kernel32.dll", CharSet = CharSet.Auto,SetLastError = true)]
public static extern void SetThreadExecutionState(uint esFlags);
'@
$ste = Add-Type -memberDefinition $dotNetCode -name System -namespace Win32 -passThru
$ES_CONTINUOUS = [uint32]"0x80000000" #Requests that the other EXECUTION_STATE flags set remain in effect until SetThreadExecutionState is called again with the ES_CONTINUOUS flag set and one of the other EXECUTION_STATE flags cleared.
$ES_AWAYMODE_REQUIRED = [uint32]"0x00000040" #Requests Away Mode to be enabled.
$ES_DISPLAY_REQUIRED = [uint32]"0x00000002" #Requests display availability (display idle timeout is prevented).
$ES_SYSTEM_REQUIRED = [uint32]"0x00000001" #Requests system availability (sleep idle timeout is prevented).
Write-Verbose "Power Plan suspended with option: $option"
$ste::SetThreadExecutionState($ES_CONTINUOUS -bor $ES_SYSTEM_REQUIRED -bor $ES_DISPLAY_REQUIRED)
read-host "Keepalive active. Press any key to quit"
Write-Verbose "Power Plan suspension ended"
$ste::SetThreadExecutionState($ES_CONTINUOUS)
#powercfg -requests
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