Is there a way to command-line emulate the "kind of sleep" that Windows 11 enters when one picks "Sleep" from the power menu? - windows

Question

I want to make my computer sleep from the command line (DOS, PS, or WSL) in a way so that it wakes up when I click the mouse or press a key - exactly how it works when one clicks "Start -< Power -> Sleep"
The following DO NOT WORK - all of the below put the machine into some other kind of deeper sleep, which ignores keyboard/mouse input (it's a laptop plugged into a monitor - I have to open its lid and press the power button to wake it, which messes up my desktop...)
psshutdown -d -t 0
C:\Windows\System32\rundll32.exe powrprof.dll,SetSuspendState 0,1,0
C:\Windows\System32\rundll32.exe powrprof.dll,SetSuspendState 1,1,0
[Void][System.Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms") ; $PowerState = [System.Windows.Forms.PowerState]::Suspend; [System.Windows.Forms.Application]::SetSuspendState($PowerState, $false, $false);
(aka)
powershell -Command "[Void][System.Reflection.Assembly]::LoadWithPartialName('System.Windows.Forms') ; $PowerState = [System.Windows.Forms.PowerState]::Suspend;echo Zzzz;[System.Windows.Forms.Application]::SetSuspendState($PowerState, $false, $false);"
Is there maybe some way to inject key-presses into the windows buffer? This would probably do the trick, if it's possible?:-
Ctrl-Esc, Up-Arrow, Right-Arrow, Right-Arrow, Right-Arrow, Right-Arrow, Enter, Enter
Does the Accessibility subsystem have any easy way to find desktop UI elements (the start menu) and trigger actions on them maybe ? (A click on the "Sleep").
Obviously - the best answer would be if anyone knows exactly what system call windows itself is making when that sleep button is pressed!

Answer 1

I guess this literally answers my question, although it's not ideal (takes a long time, is prone to probably going wrong if keys are pressed in the middle).
powershell - Command "$wshell = New-Object -ComObject wscript.shell;
$explorerpid = Get - Process | Select MainWindowTitle, ProcessName, Id | where {
$_.ProcessNAme - eq 'explorer'
} | foreach {
$_.Id
};
$wshell.AppActivate($explorerpid);
sleep 1;
$wshell.SendKeys('^{ESC}');
sleep 1;
$wshell.SendKeys('{UP}');
sleep 1;
$wshell.SendKeys('{RIGHT}');
sleep 1;
$wshell.SendKeys('{RIGHT}');
sleep 1;
$wshell.SendKeys('{RIGHT}');
sleep 1;
$wshell.SendKeys('{RIGHT}');
sleep 1;
$wshell.SendKeys('{ENTER}');
sleep 1;
$wshell.SendKeys('{ENTER}');
True
The above can be put into a .bat file, or made into a shortcut to make it easier to get to as well.
If anyone knows the correct way to invoke whatever underlying call the explorer.exeprocess is using to trigger a sleep directly, do please let us know!

Answer 2

This is another method which doesn't work for me - might work for others though?
(powershell):-
$PowrProf = Add-Type -MemberDefinition "[DllImport(`"PowrProf.dll`", CharSet = CharSet.Unicode)]`npublic static extern bool SetSuspendState(bool bHibernate, bool bForce, bool bWakeupEventsDisabled);" -Name Kernel32 -Namespace Win32 -PassThru
$PowrProf::SetSuspendState($False, $True, $False) ;echo bForce is not used
From: https://learn.microsoft.com/en-us/windows/win32/api/powrprof/nf-powrprof-setsuspendstate
p.s. The above also shows you how to call arbitrary windows API functions from the command line. Note that the weird things with backticks ` in front of them are powershell escapes for newline `n and quotes `"
Here also is yet-another, which simply does nothing whatsoever for me:-
$Kernel32 = Add-Type -MemberDefinition "[DllImport(`"kernel32.dll`", CharSet = CharSet.Unicode)]`npublic static extern bool SetSystemPowerState(bool fSuspend, bool fForce);" -Name Kernel32 -Namespace Win32 -PassThru
$Kernel32::SetSystemPowerState($True, $False)
Whatever explorer.exe is doing with their "sleep" button is clearly not using any of the above documented APIs - grrr!!