Antwort: Re: [JAWIN] Undefined function stealUnknown

Hi Morten,

thx for your response.

>First: What version of Jawin are you using: 1.0.19 or 2.0alpha1
>(2.0alpha1 is recommended).

I'm using 2.0alpha1. BTW I had a look on the CVS but IMHO your repository
is confusing for me.

>I have worked a bit with OPC a couple of years ago, although not using
>Jawin.
>
>I have started by downloading the OPC Core Components 2.00 SDK:
>
http://www.opcfoundation.org/DownloadFile.aspx?CM=3&RI=205&CN=KEY&CI=285&CU=2

>
>Is that approximately what you have done too?
>
>And if this is the case, which of the DLL's in the include-library
>should I use for generating the stubs you are requesting?

Yeaha, you're reading my mind ;-). I think for the first step, correct
stubs for the OPCAuto.DLL will do it.

>If I remember correctly the OPC foundation only defines the interfaces,
>and does not deliver an actual OPC server (that is, I assume you are
>working on building a OPC client in Java - is that correct?). What is
>the actual OPC-server you are working with? (I have only experience with
>the non-free Phoenix OPC-server).

Yes I'm trying to build an JavaOpcClient, but I need a generic solution
because I don't know which OPC-Server will be used by our customer. I have
installed 4 Demo OPC-Servers. Matrikon, FactorySoft, Softing and DSxP.
Only the Matrikon Server delivers a valid TypeLibrary which I could take
for generating the stubs, but it seems to be the same DLL as included in
the OPC-Foundation Core Components. I think you got the point. The problem
with the OPCGroup.stealUnknown() function is that the Foundation only
provides the interfaces and no impl for OPCGroup. But I compared the
output of the TypeBrowser with the output from the stub generator from the
jacob project. Their generated OPCGroup class extends  the DIOPCGroupEvent
class. Any idea why?