Environment Variables

[coroto]

With the integration kit function sd-sys-getenv one can inquire the environment variable values from the OS.

Is there a way (from LISP inside of Modeling) to actually create or set new environment variables?

You can do these things from Drafting using GETENV and PUTENV (the latter being one of those "undocumented" keywords). I thought there might be equivalents in Modeling but so far I haven't figured out how to create/set environment variables there.

Thanks for any assistance,

[Mike Swartz]

You could use SD-SYS-EXEC to run either a set or setx command.

(sd-sys-exec command)
Description: 
Forks an operating system shell and executes command in that shell. 
Returns the operating system return value of the command.
Note: If you want to pass a filename (pathname) as argument to this function 
you have to convert the filename to the platform specific notation using the function 
sd-convert-filename-to-platform. 
Parameters: 
command {STRING} - the operating system command to execute 
Return value: 
return-code {FIXNUM} 
the value returned by the command to the OS shell

[coroto]

That suggestion works, but not for the currently running session of Modeling. http://technet.microsoft.com/en-us/library/cc755104(WS.10).aspx

I was looking for a way to set an environment variable that the current session could later inquire and act upon.

[John van Doorn]

I think (putenv "myvar" "1") should work