Control LabView 2013 with DCOM

[BadLuckMan]

Hi all.

In LV7.1 days we wrote a LV application and exported a type library (.tlb) to remotely call this LV application.

Based on the .tlb we built a Win32-DLL with VC++ 6.0.

 

We would now like to update the LV application to LV2013 but we'll still nedd a Win32-DLL on the other side for remote calls/control.

 

Does LV2013 still export .tlb files?

If not, any suggestions how to remotely call a LV2013 application from Win32-DLL?

 

Thanks for any help,

Ralf

[Rolf Kalbermatter]

Hi all.

In LV7.1 days we wrote a LV application and exported a type library (.tlb) to remotely call this LV application.

Based on the .tlb we built a Win32-DLL with VC++ 6.0.

 

We would now like to update the LV application to LV2013 but we'll still nedd a Win32-DLL on the other side for remote calls/control.

 

Does LV2013 still export .tlb files?

If not, any suggestions how to remotely call a LV2013 application from Win32-DLL?

 

Thanks for any help,

Ralf

 

The TLB file is now embedded in the LabVIEW executable. Everything else works the same.

[Norm Kirchner]

If not this methodology, You can use .NET, C, C++ to call into a LV executable through REx (Remote Export Framework)

It might not be exactly the answer you're looking for, as you need to create a set of commands to be called externally, but it's a very powerful framework that others have used quite successfully over the years including myself.

 

Good luck!

[BadLuckMan]

Hello,

sorry for coming back on this so late.

And thanks for your replies.

 

Following Rolf's hint I found that with the build option 'enable ActiveX server' a .tlb file is created by LV2013.

 

I did manage to start my labview application on the remote PC but I didn't get any vi handle.

My VC++ 6.0 application crashes when trying to obtain a vi handle.

 

Before trying REx I am searching for a labview-built-in-solution to make remote calls to a labview.exe.

 

I am now willing to call labview from C# and I found many examples calling a labview DLL with C#.

But I need to call a labview EXE.

 

Is there a built-in-solution from NI to remotely call a labview 2014 executable?

(vi server is only for calling from labview to labview app, right?)

 

Thank you,

Ralf