Re: Dynamic 2-dimensional array as parameter for COM method?

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From: Jyrki Erjanti
Date: Wed, 27 Jan 1999 00:00

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David Morgenlender wrote:
> 
> I have to pass a 2-dimensional array as an input parameter to a COM method.
> Neither dimension is known at compile time.  The interface is derived from
> IUnknown.  The clients will be written in C++ & VB.  I already have dynamic
> 1-dimensional arrays working in both C++ & VB.  But I haven't been able to find
> any way to specify a dynamic 2-dimensional array in the .IDL file.  I can, of
> course, convert it to a 1-dimensional array as far as COM is concerned.  But I'd
> rather keep it as 2-dimensional, if possible, to keep the code more readable,
> etc.
> 
> Any ideas?
> 
> =======================================================
> Dave Morgenlender
> e-mail: dmorgen@alum.mit.edu
> =======================================================

In IDL specify just VARIANT.

Use VARIANT of type VT_ARRAY | VT_xxx. Make parray of the
VARIANT to point to a SAFEARRAY. SAFEARRAY may contain
more than one dimension.

                 JE

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From: Jyrki Erjanti <Jyrki.Erjanti@fidri.mail.abb.com>
Subject: Re: Dynamic 2-dimensional array as parameter for COM method?
Date: 1999/01/27
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