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.NET Forum / .NET Framework / Interop / June 2005

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Marshaling of nested structures

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Luigi - 25 Jun 2005 10:06 GMT
I have an ActiveX DLL written in VB6. This library has a class with two
public structures like these

Public Type MyInnerPublicType
   ...
End Type

Public Type MyPublicType
   ...
   aField(7) as MyInnerPublicType
   ...
End Type

The same public class as a method like this

Public Function MyPublicMethod() as MyPublicType
  ...
end function

When I call this method from a C# client I receive an OutOfMemoryException.
It seems to me that the problem is about the nested array of structures (if
I delete it from the public type all works correctly).

Is there any way to solve this problem.

Thanks a lot for any help
Mattias Sjögren - 27 Jun 2005 09:17 GMT
>Is there any way to solve this problem.

Marshaling of nested struct arrays isn't supported, sorry.

Mattias

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Mattias Sjögren [MVP]  mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.

Luigi - 28 Jun 2005 13:16 GMT
Thank you a lot Mattias for yuur reply.
You gave me a sad news, because I have no way to change the ActiveX DLL I
have to use.

Bye

> >Is there any way to solve this problem.
>
> Marshaling of nested struct arrays isn't supported, sorry.
>
> Mattias

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