System Wake Up Timer from S3, S4 (Suspend/Hibernate)

System Wake Up Timer from S3, S4 (Suspend/Hibernate)

Post by B » Tue, 01 Oct 2002 14:00:19

I have an application that suspends the computer with the following
API call:


What I am looking for is a way to wake the system up automatically
after a specified time.  I tried using the  SetWaitableTimer function,
but could not get it to function properly.  Any ideas?

Also I had troube getting the function SetSuspendState to work
properly.  It would always put the system into Hibernate, even with
the "Hibernate" parameter set to False.  Any ideas?
(SetSystemPowerState is working but its a pain setting up the tokens).

(This app. will run only on 2K and XP)




1. How to reset system suspend timer?

Is there a simple way (such as a Win32 API call) to cause the system
suspend countdown to reset (as if, for example, a key had been typed)? I
don't want to disable the timer or refuse the suspend, but there are
times when I detect an external button which should rightly have the
same effect as pressing a key on the keyboard. Thanks!

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