Variant Type or 2dim Array

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Marc Reiter - 15 Sep 2003 15:06 GMT

Hi,
I want to pass a 2dim Array of Double to a COM Class done with vb.net. If I
declare Sub setData(InData()() as Double) it does not work (I think the type
mappimg can't be done). So I want to get a Variant by Sub setData(InData as
Object). If now a vb6 made application calls this with a VARIANT as
parameter I get an Error? How can this be done? Is there a way to explicit
declare a variant in .net?

Best Regards

Marc Reiter

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Ying-Shen Yu[MSFT] - 16 Sep 2003 15:48 GMT

Hi Marc,
I'm not sure but I think you should try marshaling the two-dimensional
array to SAFEARRAY. Try defining your COM method like this
Public Sub generateMatrix(<[In](),Out()>ByVal matrix(,) As Double)
Implements IMatrix.generateMatrix
and use normally in your VB6. for more information you may refer to
http://msdn.microsoft.com/library/en-us/cpguide/html/cpcondefaultmarshalingf
orarrays.asp?frame=true
Thanks!

Best regards,

Ying-Shen Yu [MSFT]
Microsoft Online Partner Support
Get Secure! - www.microsoft.com/security

This posting is provided "AS IS" with no warranties and confers no rights.
You should not reply this mail directly, "Online" shouldbe removed before
sending, Thanks!

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| From: "Marc Reiter" <marc@reitec.de>
| Subject: Variant Type or 2dim Array
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| Marc Reiter

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Variant Type or 2dim Array

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