Getting clusters from LabVIEW ActiveX Server with Excel/VBA

Hello,
my colleague and I are trying to control a LV from Excel (VBA) by ActiveX.
I.E.:
We do something like :
Set LV = createObject("LabVIEW.Application")
Set VI = LV.GetVIReference("Path_to_VI")
ParamNames(0) = "Input1"
ParamNames(1) = "Input2"
ParamNames(2) = "Output"
ParamValues(0) = 1
ParamValues(1) = 3.1415
Call VI.Call(ParamNames,ParamValues)
msgbox("output =" & ParamVals(2))
This works perfectly for simple data types (int, double, float, string, etc )
Now we need to transfer more complex structures, which are originaly LV-clusters.
But we did not find any clue on how do that (especially receive clusters) in the help or on the internet.
Is there any chance to succeed ???
TIA,
Thomas

Actually, working with clusters is really really easy. Through the magic of - well something - a cluster in LV comes out in the VBA environment as an array of variants. There was an activex example that shipped with V7.1 that showed this very thing. I couldn't find them in V8 so here is the 7.1 stuff.
Check out the macros in the Excel spreadsheet... This show running the VI in the development environment, but if this looks interesting I can fill you in on how to make it work in an executable.
Mike...
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps
Attachments:
freqresp.xls ‏49 KB
Frequency Response.llb ‏155 KB

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In article ,
Leslie Brooks wrote:
>"Bruce Hartweg" wrote in message
>news:...
>> "Chin Huang" wrote in message
>news:[email protected]...
>> >
>> > I don't use LabView, but from the Visual Basic example I saw, it seems
>> > the Call method takes two arguments. The first is an array of parameter
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>> > data with the Tcl command
>> >
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>>
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>same as 1.
>>
>> Bruce
>
> I know what is supposed to be passed to the 'Call' method. Doing
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>
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>$inst methods
>
> produces (among other things):
>
>{1015 VOID Call {{{in out} {VARIANT *} paramNames} {{in out} {VARIANT
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>
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>
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>
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