How to pass a value from a Labview-built executable to a TestStand variable

[cjsSP72]

I want to pass a value from a Labview-built executable to a TestStand variable. I can save the value in a text file or in the Clipboard, but I would like to make the call with a variable_name whose value should be updated by Labview.

I would appreciate if an example of labview code for this task is shared. 

[dkfire]

What does the LabVIEW application do ? 

Does it have access to the TestStand engine ? 

[cjsSP72]

The Labview code receives a number and performs some mathematical and logical processes, answering with the result number.

TestStand passes the number to be transformed (Property Node and Application: Command line Arguments included in Labview).  The question is how to define Labview code to send the result number to a Variable in TestStand.

[zou]

Have you seen this NI Doc:

https://knowledge.ni.com/KnowledgeArticleDetails?id=kA03q000000owsxCAA&l=en-US

[cjsSP72]

Thank you for your interest. I know the testStand options calling an executable. The Standard output saves the result in a variable or in a file, but the issue is I don´t know how to configure Labview file output to be transferred. The console output isn´t an option for me because I have parallel executions and results could be mixed.   I have done with an text file, but I would like to avoid multiple writing/readings in a text file.

[zou · Accepted solution]

On Windows OS, no exe can return a parameter, regardless what programming language you use.

If you have the source code, you can recompile your code to a dll.  Then you can return parameters.

Or you can change your code to write to TestStand variables (ActiveX) if you can pass Sequence Context in.

[cjsSP72]

I have recompiled to a dll and now it works. 

Thanks.