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Re: Structure in argument #2 -> With IDL ActiveX control [message #13587]

Wed, 25 November 1998 00:00

mark
Messages: 28
Registered: September 1992

Junior Member

On Mon, 23 Nov 1998 08:13:43 -0700, "Matthew J. Sheats"
<sheats@lanl.gov> wrote:

>> Does the GetNamedData() function of the IDL ActiveX control support the
>> structure definition?
>
> Well, the GetNamedData() function returns data as a variant which needs
> casting. If you have a user defined structure, then there isn't a
> default cast for it, but what you might be able to do, is write a VB
> function that could rip the Variant apart into the structure you need.
>
> The only issue is, I don't know how IDL would handle a request to
> return a structure in this way. If it returns bits, then you're ok, but
> if it doesn't know what to do.. you probably will just get an error.
>
> Let me know if you figure it out, I've never tried that before.
>
> Matt Sheats
> Los Alamos National Laboratory

GetNamedData will return an empty variant if the IDL variable that you
are getting is a structure. The data types that you can retrieve
using this function are scalars of type byte, short, long, float,
double and string.

=====================================================
Mark Leaming

Research Systems, Inc.
=====================================================

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[Message index]

		Re: Structure in argument #2 -> With IDL ActiveX control By: mark on Wed, 25 November 1998 00:00
		RE: Structure in argument #2 -> With IDL ActiveX control By: Matthew J. Sheats on Mon, 23 November 1998 00:00
		Re: Structure in argument #2 -> With IDL ActiveX control By: davidf on Fri, 20 November 1998 00:00

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