Detect WinXP Login Screen

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#4728

From: Thom A.
Date: Wed, 14 Dec 2005 22:17

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I use the following code to detect when a screen saver has been started, 
and when it was stopped:

global variable:
----------------
     BOOL ScreensaverRunning = false;    // global variable

periodic poll:
--------------
     BOOL bOn=FALSE;
     BOOL b=SystemParametersInfo(SPI_GETSCREENSAVERRUNNING, NULL, &bOn, 
FALSE);
     BOOL ScreensaverOn = b && bOn;
     if  (ScreensaverOn != ScreensaverRunning)
     {
         ScreensaverRunning = ScreensaverOn;
         if (ScreensaverOn) Trace(Application,"Screen Saver activated");
                       else Trace(Application,"Screen Saver stopped");
     }

Now this tells me that a screen saver has been stopped, but it doesn't 
detect whether the Windows XP login screen, or the Login window is 
visible. Is there a way to detect this, either?


Thomas

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