automatic system standby generation and resume after few seconds?

[Mathan]

Any outcomes?

Am using LabVIEW 8.5 running under WinXP.

Thanks,

Mathan

[MikeS81]

Hi mathan,

try this API call:

SendMessage(Handle, WM_SYSCOMMAND, SC_SCREENSAVE, 1);

Mike

[Mathan]

Mike,

But which dll i have to use.

I guessed and tried kernel32.dll but there is no function 'sendmessage'.

Thanks,

Mathan

[smercurio_fc]

That just starts the screensaver, as far as I can tell.

What are you trying to do?

[MikeS81]

Hi mathan,

SendMessage is in User32.dll. If this is not what you need, then try this: http://msdn.microsoft.com/en-us/library/aa373201(VS.85).aspx

Mike

[Mathan]

Dears,

I forgot to mention that standby in the sense i need to hibernate the PC and resume it automatically after say some 30 seconds.

Thanks,

Mathan

[Mathan]

Dear mike,

The link u provided is too good and i will try it out. But once if system enters hibernate mode, then how to resume from that state?

Mathan

[MikeS81]

Hi mathan,

i´m not sure, maybe "wake on lan".

Mike

[Mathan]

Dear mike,

Am sorry i can't able to get you.

What you mean by "wake on lan"? 

Thanks,

Mathan

[smercurio_fc]

Look at the API functions CreateWaitableTimer and SetWaitableTimer. Take a look at this VB code.