Detecting if the screensaver is active and/or the user has locked the screen in Windows

Question

I\'m writing an app that at times will send notifications to the user in the form of toaster messages.

If the user is not there, he can\'t see the notification. So w

Answer 1

Use SystemParametersInfo to detect whether screen saver is running - the calltype is SPI_GETSCREENSAVERRUNNING. This is supported on Win2000 and above.

There is code from @dan_g on StackOverflow here to check if wksta is locked.