LISP to Notify when a layer has been unlocked

[Daniel Mckague]

Hello,

I am in search of a LISP routine that will notify you if a layer was unlocked the last time the dwg was opened and if possible, to tell you which user was the one to unlock it. 

The issue we have is we create piping models in Plant3D and when a piping run is complete and being fabricated we lock the layer so that no changes can be made. Multiple designers can work in one model so we have had issues with layers getting unlocked and the piping run moved/modified. So if possible we need a way to lock layers with either a password or to be notified if a layer becomes unlocked. Anybody have a solution?

 

Thanks in advance for all your suggestions.

[rkmcswain]

In the words of CAD Manager extraordinaire Mark Kiker ....

"Don't let a management problem become a technology problem"

 

In other words, this sounds like a management problem. Tell the designers to not unlock these layers, problem solved.

Unless of course you have 1,500 of them and it's virtually impossible to tell who is doing it, and therefore you don't know who to write up.

 

On the technical side, I suppose it's possible to load 3rd party code with a reactor that can detect when a layer is modified, record the modification, and the current user at the time, to a log file. Layers cannot be locked with a password inside of ACAD. You could export those layers to a separate DWG file, then place those DWG files in a network location to which these rogue designers do not have write access, then xref them back in.

 

 

[Steven P]

Copy the piping to another drawing, insert as an xref? Would that work.. I think Windows can tell who last opened a file and modified it can't it