Afaik this cannot be done by Qt directly. You will need to go in the OS API.

On windows you can use GetSystemTimes [msdn.microsoft.com]

Hey thanks. But i am new to programming. Can you please explain how to use it.
I include <winbase.h> and <windows.h> but then how you get the state out of it?
Thank you!

It has been some time since I used it with VB.

What have you tried so far?

I’ll have a look if I can dig up something.

You’ll have to use WINAPI. maybe you’ll get a faster solutiuon on a windows c++ forum.

You could possibly use QThread [doc.qt.nokia.com] there is at least a possibility to set the priority appropriately.
Priority [doc.qt.nokia.com]
I have never changed the priorities so far. Therefore, I do not know if it helps at all.
Furthermore, this may not be some beginner’s stuff :-(

Here is example code [eggheadcafe.com] on how to use getsystemtimes.

Thank you so much guys!

Does this mean your topic is solved? In that case could you add [Solved] in front of your title by editing your first post.

If you can share it with us, we would appreciate to know how you solved it.

Yes i did this on Win api level by calling the Function: SystemParametersInfoA() with parameter SPI_GETSCREENSAVERRUNNING to check if the screen Saver went on!