Hi,   
  
When you are 20 minutes idle the screen is turned off, at that moment the  
reported amount of seconds idle gets resetted to 0 as well.  
  
--- 
     XScreenSaverInfo*  _mit_info; 
    _mit_info= XScreenSaverAllocInfo(); 
    XScreenSaverQueryInfo(qt_xdisplay(), qt_xrootwin(), _mit_info); 
    totalIdle = (_mit_info->idle/1000); 
    XFree(_mit_info); 
--- 
 
_mit_info->idle will be 0 after 1199 seconds. Exactly the moment the screen is 
turned off. 
 
---- 
idle :: date 
1195 :: do mrt 30 22:19:46 2006 
1196 :: do mrt 30 22:19:47 2006 
1197 :: do mrt 30 22:19:48 2006 
1198 :: do mrt 30 22:19:49 2006 
0 : do mrt 30 22:19:50 2006 
0 :: do mrt 30 22:19:51 2006 
1 :: do mrt 30 22:19:52 2006 
3 :: do mrt 30 22:19:53 2006 
4 :: do mrt 30 22:19:54 2006 
5 :: do mrt 30 22:19:55 2006 
---- 
 
I expect: as long as the user does not move keyboard or mouse the reported 
amount of seconds for idle should increase. 
 
Applications that query this idle time should be able to rely on this figure to 
determine how long the user has been idle. 
 
Tom