X security violation logs

From: amitks (amitks_1@hotmail.com)
Date: 11/28/02 

From: amitks_1@hotmail.com (amitks)
Date: 27 Nov 2002 22:32:38 -0800

Hi,
1.Could some one tell me how to enable the logs for events related to
X security violation Such as the ones using xwd,xwatchwin or xgrabc.
2.Are there any log files by default that I can check to confirm that
the screen was captured on the particular machine (from a amachine)
using the above commands/tools.
Regards
Amit