Saving variables to dwg

hello all
I would like to prompt user for initial value of variable then save back to dwg, not AutoCAD. I use setenv for certain variables but for this one I want it saved with the dwg so it only prompts one time not each time the dwg is opened.

 

Try this approach.

;; Save variable to drawing
(defun save_to_dwg ()
(if (= (getvar "USERS1") "")
(progn
(setq str (getstring "\nType in a Variable to save to Users1:"))
(if str
(setvar "USERS1" str)
)
)
)
)
;; In startup..do
(save_to_dwg)

;; Note: there are (5) USERSx variables.

Bob

 

Hmmm ... unless I missed something, the USERSX variables have NEVER been
able to remember strings from session to session.

Search on dictionary for one technique.

Len Miller

 

Fatfreek,
(what a handle).
I was under the impression that the UsersX var's would be
saved in the drawing - along with other sysvar's.
You are correct. Not the case. I guess I'll have to dream up
another method. Maybe a block with a couple of attributes,
and no visible entities.

Thanks for pointing that out.

Bob

 

I hope I didn't come across that USERR1 (reals) thru ...5 and USERI1
(integers) thru ... 5 had that same deficiency. Those can survive saves.
Fact is, I used USERR1 for years storing drawing settings by virtue of
values. A value of 25000.0 meant the drawing was metric -- 10000.0 meant
inches, etc, etc. Not very direct, but it worked.
Thanks to tips on this forum I now use dictionary entries -- yes, they're
hidden and not attached to visible entities, but easier to place information
and get information.
There are other techniques, I was told, but that was the one I chose.

Len

 

though the USER strings are not saved session to session, you'll notice the HYPERLINKBASE sysvar *is* saved. If you can safely assume you'll never need to use this sysvar, you can go ahead and save your custom data here.

--Jeremiah

 

Take a look at the (dictxxx) functions in the acad_dev.chm help file.

dwg, not AutoCAD. I use setenv for certain variables but for this one I want it
saved with the dwg so it only prompts one time not each time the dwg is opened.

 

bnarum,

Just guessing here, but what "DICTADD".

Doesn't that save strings/nongraphical data?

But upon reopening the file, 'startup' would have to read "DICTSEARCH" and
invoke that variable.

W. Kirk Crawford
Rochester Hills, Michigan