How to send the PC to standby or hibernation?

[falconium]

Hi,

Any idea? Is there any library for this?
I saw that there is a so called POWRPROF extension in MSDN, but I don't know how to use it in QT.
Do you have any suggestion?

Thanks!

[MorrisLiang]

It's a dll,so I guess you should take a look at QLibrary.

[ChrisW67]

I don't expect Qt has anything to directly address this requirement.

There will be a Windows-specific API call that you use on Windows in the same way that MSDN does. It will also likely vary between Win XP and Vista/Win 7 (usually a bunch of extra calls to sort security).

I assume that there is an equivalent on Mac, and probably no standard way on Linux.

[squidge]

Under Windows, you can try SetSystemPowerState

[wysota]

I assume that there is an equivalent on Mac, and probably no standard way on Linux.

You underestimate the power of Tux You can either call an appropriate command (like hibernate) through QProcess or use /sys/power interface or make a direct call to HAL through DBus.