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64-bit integers in activex

Hello:

I have some COM objects which I'm trying to use in LabVIEW.
I'm was able to use the "Automation Open", however when I use the "Invoke Node", I noticed that some functions are not usable and are grayed out.
I asked the developer of the COM and he said that it seems that the functions that are grayed out are using 64-bit integers.
I was wondering if anybody out there were able to successfully use 64-bit integers in activex for LabVIEW

🙂



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Just curious, what's yur LabVIEW version?
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Hello altenbach:

I'm using LabVIEW 8.5.1

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Hi DonPogi,

This is an issue that seems to be a continuing problem with ActiveX 64-bit integers. I would encourage you to submit a product feedback at www.ni.com/support to get your information to our R&D department so they are aware of the issue.

A possible workaround is to put the 64-bit data into a wrapper to convert the datatype to one of the supported types. More information about these datatypes and what is supported can be found at the following url:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbcon98/html/vbconcreatinginterfacesforusewithimplementsstatement.asp

Thank you for the information, and let me know if there is anything else I can do for you on this.

Regards,

Stephen S.
National Instruments
Applications Engineering
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