Command Line Arguments to VI Without Building EXE

[MrHappyAsthma]

I am following this guide: Passing Command Line Arguments to a LabVIEW Executable

I want to pass command line arguments in Windows to LabVIEW without building my project into a EXE.  I just want to pass them to a VI which is set to Run When Opened.

This is my LabVIEW code:

However when I call my VI using the command line, I do not see my user-arguments:

"C:\Program Files\National Instruments\LabVIEW 2009\LabVIEW.exe" "C:\Desktop\LabVIEW Code\test.vi" -- test arg1 arg2

The above call only yields "LabVIEW" as the first command line arguement.  I don't see "test", "arg1", or "arg2" in the Command Line Arguments array.

[NeilR]

Hi Happy

There's a working example in C:\Program Files\National Instruments\LabVIEW 2010\examples\viserver\cmdline.llb.

Not sure if it's in LV 2009 ?

Good luck !

[MrHappyAsthma]

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@NeilR wrote:

Hi Happy

There's a working example in C:\Program Files\National Instruments\LabVIEW 2010\examples\viserver\cmdline.llb.

Not sure if it's in LV 2009 ?

Good luck !

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This example file uses the same approach as above, however it also does not work:

"C:\Program Files\National Instruments\LabVIEW 2009\LabVIEW.exe" "C:\Program Files\National Instruments\LabVIEW 2009\examples\viserver\cmdline.llb\CommandLine.vi" -- /number:4.000000

Output:

[JÞB]

Check into the examples for Asynchronous Call By reference.  Essentially you need to open a vi server reference to the vi with the right flags set.  the help on open vi server reference will explain the flags.

[MrHappyAsthma]

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@JÞB wrote:

Check into the examples for Asynchronous Call By reference.  Essentially you need to open a vi server reference to the vi with the right flags set.  the help on open vi server reference will explain the flags.

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Would you be able to create an example?  I found this: Asynchronously Calling VIs but it seems to only address running a subVI in an asynchronous manner.  It doesn't explain command line arguements passed when the VI first runs.

[NeilR · Accepted solution]

Hmmm ... that's disappointing. I've just tried it with LV 8.5 and it's fine with that too.

I've been running these under XP SP3.

I assume you completely closed Labview before running the command line ?

[JÞB]

Mr. Happy

I could respond with a volume or a simple example.

What do you want to accomplish?  What have you tried?  And, I know the help file can make you gyrate unexpectedly. 

[MrHappyAsthma]

I am using Windows 7 and LabVIEW 2009.

I do, indeed, close LabVIEW completely before trying to run that example.

All I need is a way to execute my VI and pass it some custom parameters using the double hyphen (--).

EDIT: 

I finally got it to work.  The "closing out completely" did the trick.  For some reason a LabVIEW process was still running in the background...  But I force closed it with Task Manager and now it works!

[NeilR]

Yep ... it should be easy. I sense your frustration.

Just tried the same example with LV 2012 running under Windows 7.

Same result. Fine.

EDIT: Just seen your edit. Good news !!