Save command loses history

Hi all

I have a problem with a lisp that runs a series of commands on a drawing then uses _save to save a copy to a specific location then i need it to undo to the begining of the drawing again so i can basically repeat a similar process and _save again.

Problem is once the lisp has _save'ed is seams to lose its undo history and will only undo to the point of the _save. I have tried this series of commands outside of a lisp routine and it works fine, cant understand why it acts differently.

Anyone have the answer?

Cheers all

:S

Hi

Are you try

(command "_.undo" "_begin")

My lisp

....

....

(command "_.undo" "_end") ?

@+

I tried (command "undo" "100")

I will try what you have suggested and post my results.

Thank you for your reply.

Tried and failed

Turned out to be something else in the lisp, got it working now. Thank you Patrick_35

An example

(defun c:test()
 (command "_.undo" "_group")
 (command "_.line" "0,0" "10,10" "")
 (command "_.line" "10,10" "20,10" "")
 (command "_.line" "30,0" "50,10" "")
 (command "_.line" "4,0" "100,100" "")
 (command "_.line" "50,0" "70,10" "")
 (command "_.undo" "_end")
)

just 1 undo

@+