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Unfortunately, that is not really the 'whole
story'.
VB DLLs are not just ordinary Windows DLLs (
dynamicly
bound executables ), but rather COM based
objects wrapped
in a DLL package. Their functionallity is only
accessable via
a COM Client.
As suggest, a C based wrapper could interface between
the
java client and the VB COM DLL, but the C wrapper
would
need some extra coding, to become a proper COM
based
client to the VB DLL, and the VB DLL would need to
be
registered on the machine it was used on (which is
no
trick, because all VB based COM DLLs support self
registration).
-aa-
Hi Reeta,
If you have a 3rd party dll you have to write a wrapper for it.
What
you have to do is to model the vb dll functionality with a java class like:
public class VbDllWrapper {
public native String
stringFunc( String s ) ;
public native void simpleProcFunc( )
;
static {
// Load the
library
System.loadLibrary(
"VbDllWrapper.dll" );
}
}
Compile this class and use javah to generate a C header file. This header
file shows you how to implement the wrapper dll in C. This wrapper can acces
your VB dll methods.
If you have the source of the VB dll you can code the additional methods in
the dll itself.
regards,
janco
Reeta Mittal wrote:
Hello,
It can a be a very premilinary question.
I have a VB dll. Now I want
to use this in Java. How can I do this ?
Thanx and Regards,
Reeta
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