mathscript 64Bit

[Jannis]

Hi,

I would like to migrate my 3D-heavy LabView 8.6 application to Windows7 64-Bit.

MathScript doesn't appear in the 64Bit LabView version.

Do you believe the best way to proceed is to include my 2 only needed MathScript functions as dll created in 8.6?

Thanks

  Jannis

[mishkin · Accepted solution]

Jannis,

MathScript currently isn't supported in Labview 64-bit. Also, I don't think you'll be able to get away with creating a DLL since DLLs compiled in a 32-bit OS cannot be called from a 64-bit OS. What you may want to take a look at is using ActiveX to communicate with a 32-bit EXE from a 64-bit operating system. Take a look at the following KB on how to build an EXE with ActiveX functionality: How Do I Launch a LabVIEW Executable Remotely Using ActiveX/DCOM?

Hope this helps. 

[Jannis]

Thanks for the reply Misha!

I was actually hoping to have my self made MathScript.dll running on the WOW 32emulation layer. Why should that not be accessible from the LV-64Bit runtime?

Since I have to call the MathScript Delaunay function quite a lot in my 3D-Mesh reduction application I fear, that the ActiveX pipeline might be far to slow for a reasonable processing time.

Anyway I'm not even able to call my self made dll in a pure 32-Bit environment. I seem to be running into similar problems like BenSanchez on the "Missing header files when importing a shared library with labview 8.6? " thread.

Any (useful) demo out there to explain how to do it, or give some help to Ben and me?

(How do you quote other threads?

Thanks

  Jannis

[Jannis]

And Misha was right!

I finally managed to link my self made LV.dll to my 32-Bit application.

Not so from the 64-Bit system. See image

So, now let's learn how to write an ActiveX-application and see how fast that communication can be...

Or maybe NI is so kind on us to port MathScript to the 64-Bit century!

(And no thanks to NI for starting to charge extra for MathScript!)

Jannis

[Jannis]

Seems I'm talking a bit to myself here. Anyway:

The Kudo goes to Misha!

Yes, calling a self written application in LV8.61 on the 86 layer via ActiveX from the LV2009 64Bit layer works. Now I can call the MathScript routines which are not supported under LabView 64-Bit.

Unfortunately that brings the computing speed down by an estimated two-third compared to the same machine running a 32-Bit exe on the Windows7 64-Bit.

Not sure if I can present that to the customer, but it feels good having tried!

Jannis