Re: Unable to Expose Java Methods to Excel VBA

Hi,

Have you tried following these steps:
http://stackoverflow.com/questions/14967080/how-do-i-make-a-dll-created-with-ikvm-com-visible

Second, why are you using ildasm/ilasm to strong name sign the assembly? You can use the ikvmc -keyfile:<keyfilename> option to directly sign the assembly.

Regards,
Jeroen

From: Colin Chin [mailto:[email protected]]
Sent: Tuesday, June 2, 2015 4:58
To: [email protected]
Subject: [Ikvm-developers] Unable to Expose Java Methods to Excel VBA

Hi,

I was trying to call Java methods from with Excel VBA.

I tried one of the sample, and here is my code:

Assembly.java

import cli.System.Runtime.InteropServices.*;

@cli.System.Runtime.InteropServices.ComVisibleAttribute.Annotation(true)
interface Iassembly {
              public int method1(int x,int y);
}
@ClassInterfaceAttribute.Annotation(ClassInterfaceType.__Enum.AutoDual)
public class assembly implements Iassembly
{
  public int method1(int x, int y)
  {
      return x + y;
  }
}

And these are the steps I have followed to use IKVM to convert the java class to DLL:

1.           javac -cp mscorlib.jar;. assembly.java
2.           ikvmc -out:assembly.dll assembly.class -r:mscorlib.dll
3.           tlbexp assembly.dll

I then signed the DLL with a strong name by doing these:

1.           ildasm /all /out=assembly.il assembly.dll
2.           sn -k mykey.snk
3.           ilasm /dll /key=mykey.snk assembly.il

Then, I do the type library export:
1.           tlbexp assembly.dll
2.           regasm /codebase assembly.dll /tlb

Everything runs well, and when I add reference in excel VBA, I can see "assembly" is there. But when I use object browser to see the methods, nothing is exposed, I only see the one <global> word there.

Can someone please tell me what have I done wrong in my java code? Anything I need to add to expose my methods to be usable in excel VBA?

Many thanks.

Cheers,
Colin

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