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.NET Forum / .NET Framework / Interop / December 2004

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Union in VB.NET

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DPC - 28 Dec 2004 13:18 GMT
Hello

I am trying to port a C stucture with union 's inside to VB.NET.

I know there is no UNION keyword in VB.NEt, but how can i solve this in
VB.NEt ?

kind regards
Dieter De Preester
Mattias Sj?gren - 28 Dec 2004 15:25 GMT
Dieter,

>I know there is no UNION keyword in VB.NEt, but how can i solve this in
>VB.NEt ?

Usually with a Structure decorated with the
<StructLayout(LayoutKind.Explicit)> attribute, and then explicit
FieldOffset attributes on each member to make them overlap.

Mattias

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Mattias Sjögren [MVP]  mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
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DPC - 28 Dec 2004 15:44 GMT
is it ok to replace a union by a struct

then i have a struct in a struct
> Dieter,
>
[quoted text clipped - 6 lines]
>
> Mattias
Mattias Sj?gren - 28 Dec 2004 16:18 GMT
>is it ok to replace a union by a struct

Yes

>then i have a struct in a struct

That shouldn't be a problem.

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.


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