return Argument to CMD

[Aric_liao]

     I can get the Arguments when I use the CMD call exe(which is build by Labview). but I can't find any method to get a Arguments from EXE to CMD.

      anybody can give some help?

[jwscs]

hi there,

your question is just a guessing game for me.

would you mind using LabVIEW terms/names?

what i may have gathered is, that you know how to use "System Exec.vi",

but you want to know how to get arguments for your own LabVIEW executable?

and then call "System Exec.vi" with the same arguments?

EDIT:

is this what you were looking for? https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z000000P80FSAS

[RTSLVU]

Have you read the Help for the Systemexec.vi?

Really I am not sure I understand your question.

Do you want to add arguments to a command line?

Do you want to know what arguments a command HAD BEEN ran with?  

Do you want to capture the output of a command ran through the systemexec (cmd window)?

[Aric_liao]

thank you for your reply.

I build a EXE with labview and I can get the Arguments when I use the property of Aplication Arguments. but when the EXE is finished the excution and I want return a value(successful or fail） to CMD(third party App).

     I have asked to NI service and they tell me that I can't return a value to CMD

[Aric_liao]

I want to capture the output of a command ran through the systemexec (cmd window) when I use CMD to start a EXE which is build by labview.

[Sam_Sharp]

I believe it is possible, but that it is not easy.

Here are some resource that might help you:

http://digital.ni.com/public.nsf/allkb/E5CC7B2073D4FC1A8625742D006CE492

https://lavag.org/topic/11719-running-a-labview-exe-from-the-console/

https://lavag.org/topic/7488-how-to-creat-dos-based-programs-in-labview/

https://lavag.org/topic/20360-collecting-stdout-from-labview-when-run-from-jenkins/

https://lavag.org/topic/13873-how-do-i-set-lv-exit-code-or-write-to-stderr/

[jwscs]

so the System Exec VI returns you the stdout, stderr and the return code.

what is it that you are missing?

edit:

i think i start to get it, you want the labview executable to exit with a return code, or output to stdout/stderr,

that i don't konw

[pincpanter]

---

jwscs ha scritto:

so the System Exec VI returns you the stdout, stderr and the return code.

what is it that you are missing?

---

He wants to return a code to the OS when closing his own LabVIEW program.

[jwscs · Accepted solution]

an option would be to write the info you want to a file (e.g. return code),

and use this file from any other tool in your commandline chain

[wiebe@CARYA]

LabVIEW is not a command line application. It's possible, but much much much more difficult that you'd might expect.

Named pipes can help. You can create them from the command line, and LabVIEW can write to them (and then quit). That's not really "return argument to CMD", but it servers the same purpose.