topic Re: Pass lisp variable to batch file that requires arguments in AutoCAD Forum

Pass lisp variable to batch file that requires arguments

Anonymous — Mon, 01 Oct 2018 19:48:11 GMT

I have a batch file i am calling from a lisp. It requires an argument that I want to pass from the lisp. How do I do this? I'm using the (startapp "filename.ext") function to call the batch file from a lisp.

Re: Pass lisp variable to batch file that requires arguments

TheCADnoob — Tue, 02 Oct 2018 13:44:20 GMT

is it something that can be passed like a file switch?

https://forums.autodesk.com/t5/visual-lisp-autolisp-and-general/start-app-and-pass-a-variable/td-p/819028

Re: Pass lisp variable to batch file that requires arguments

Paul_Gander — Wed, 03 Oct 2018 22:38:22 GMT

@Anonymous

You could add some code to your lisp routine that will write a new temporary batch file containing a call to the main batch file with the arguments you want and then execute the temporary batch file using AutoCAD's SHELL command.

You did not specify the name of your batch file or the nature of the arguments you wanted to pass to it so here is a generic example with 2 arguments stored in variables:

(setq file_id (open "c:\\your path\\your temp batch.bat" "w"))
(write-line (strcat "\"c:\\your path\\your batch.bat\" " your_first_argument_string " " your_next_argument_string) file_id)
(close file_id)
(command "shell" "\"c:\\your path\\your temp batch.bat\"")

Re: Pass lisp variable to batch file that requires arguments

Anonymous — Wed, 03 Oct 2018 22:40:35 GMT

Thank you. I will try to test soon.