DWGLOG is useful in network situations where people are contending for the same drawing files. If you try to open a drawing that someone else is using, AutoCAD indicates that someone else has the file open, but does not identify the person. If all users on your network have logging turned on, you can look at the DWH file to find out who has the file open.
If you use DWGLOG when logging is turned off, the following message appears:
Logging for drawing files has been turned on.
If you use DWGLOG when logging is on, the following prompt appears:
You are about to turn off logging for drawing files.
Do you wish to continue? [Yes/No] :y
Logging for drawing files has been turned off.
Type 'dwglog' to turn logging back on.
When logging is on and someone accesses a drawing file, that
file's drawing history (DWH) file is updated. If a DWH file does
not exist for that drawing, DWGLOG creates one in the directory
where the drawing file resides. Actions that are logged include
opening a drawing, closing a drawing, and attaching a drawing as an
xref. Following is a sample DWH file:
Opened by Penelope on MACHINE1 at 18:14:09 on 7/10/1997 Closed by Penelope on MACHINE1 at 18:18:44 on 7/10/1997 Attached by Bartholomew on MACHINE2 at 07:59:58 on 7/11/1997