Interrupt for Screensaver

The easiest way to disable sceensaver for test run is to completely disable it :)

And here is a JScript example how to disable screensaver. If you really need this, you'll need to rewrite this in VBScript (see TC help topic "How to Call a DLL Routine From Your Script"). However, I still recommend just disable screen saver on you PC.



function DisableScreensaver()

{

  kernel = DLL.DefineDLL("kernel32");

  Lib = DLL.Load("c:\\Windows\\System32\\kernel32.dll");

  proc = kernel.DefineProc("SetThreadExecutionState", vt_void);

  Lib.SetThreadExecutionState();

}

Hi,



This is all about the power scheme. If you need to configure your machine programmatically use powercfg.exe (doc).



An easy way to do this is to configure a power scheme, export it and import it on the target machine.



Sincerely

The correct solution is really to disable power saving and screen saver features altogether on your test machine or VM. No point in increasing complexity of the code at all. Create a template VM for your test bed with everything tuned as you need and use it to replicate to other test machines.

Hi Smita,



In addition to Gennadiy's answer, you can prevent a screen saver from starting in the following ways:



* Call the Windows API SystemParametersInfo function to temporarily disable the screen saver:

' Disable the screen saver

Call Win32API.SystemParametersInfo(Win32API.SPI_SETSCREENSAVEACTIVE, False, Null, 0)



' Do something



' Enable the screen saver

Call Win32API.SystemParametersInfo(Win32API.SPI_SETSCREENSAVEACTIVE, True, Null, 0)

* Create a timer that will fire periodically and move the mouse pointer on the screen:

Sub Test

  Set timer = Utils.Timers.Add(900, "Unit1.MoveMouse", True)

 

  ' Do something

End Sub

 

Sub MoveMouse

  Sys.Desktop.MouseX = Sys.Desktop.MouseX + 1

End Sub

Thanks Gennadiy and Helen. Will try this out and let you know.



Regards

Smita

Don't use this example. After some investigations I found out that it doesn't work. Anyway, even if you make it working, it will not disable the screensaver.



Please use Helen's suggestion instead.

Don't care too much about screensaver. I need to prevent the system from entering sleep or turning off the display. MSDN says this function (SetThreadExecutionState) should help, but I have no idea how to make it working:



http://msdn.microsoft.com/en-us/library/windows/desktop/aa373208(v=vs.85).aspx

The correct solution for you is















But since it only sends command to OS, but not sets some kind of settings, you need to run it from time to time. For instanse, you can create Timer and call this function every minute.