[mono-vb] Creating instance of VB assembly in native linux c application

Rafael Teixeira monoman at gmail.com
Mon Aug 14 08:59:00 EDT 2006

Never heard of someone trying to call VB.NET assembly from C by embedding Mono.

Have you tried to call the methods from C# instead of from C?

Also, check that you didn't compile them with incremental linking
(default on debug builds) as it puts an undocumented segment within
the assembly, that prevents Mono from loading the assembly.

Possible culprits, if both tests above pass OK:
++ vbc (the compiler that VS.NET calls) may generate assemblies with
some undocumented characteristic, that Mono doesn't know how to deal
(if such we wan't to know to implement it)
++ some support code in mono's implementation
Microsoft.VisualBasic.dll, doesn't work as needed (doesn't seem to be
it, but alas)

Could you open a bugzilla case with details, and a short VB.NET
assembly that causes the problem (the snippet of code that do your
embedded calling)?


On 8/14/06, alexs <alexs at callview.com> wrote:
> Hi all,
> I'm investigating mono so that we can avoid rewriting VB.NET assemblies  for
> a possible linux port of our software...
> I have created a simple VB.NET assembly with static and instance methods and
> compile is in Visual Studio. On Linux in c, I can load the assembly, and
> invoke the static methods no problems. But when I try and create an
> instance, it fails - well, "mono_class_from_name" is what fails (I'm using
> the right namespace and class name!)...
> If I recreate the  assembly in C# with the same methods, and compile again
> on VS, I can create an instance of it no problems in linux, and can call an
> instance method.
> Does anyone have an ideas as to why this could be?
> Thanks
> Alex
> --
> View this message in context: http://www.nabble.com/Creating-instance-of-VB-assembly-in-native-linux-c-application-tf2102633.html#a5794595
> Sent from the Mono - VB forum at Nabble.com.
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Rafael "Monoman" Teixeira
"The reasonable man adapts himself to the world; the unreasonable one
persists in trying to adapt the world to himself. Therefore all
progress depends on the unreasonable man." George Bernard Shaw

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