🚀 go-pugleaf

Thanks Shankar...really appreciate the input.

BH

"Shankar Unni" <shankar@cotagesoft.com> wrote in message
news:3dcff06b$1@newsgroups.borland.com...
> BH wrote:
>
> > We're new to java and wondering about the prospects of easing it into
> > our current non-java apps until they are eventually 100% java....
> >
> > Is it possible to "blend" java desktop or C/S app widgets (not
> > web/browser stuff) with a win32 app such that the java portions appear
> > to be part of the calling win32 app or dll?
>
> Not without some difficulty, but it's not impossible.
>
> The problem is that the Java stuff needs a JRE to run, so for starters,
> you'll have to bundle a JRE.
>
> The normal code sequence to load and run Java code from C/C++ code is to
> use "JNI" (the Java Native Interface) to create a virtual machine, and
> feed it code to execute.
>
> However, in your case, where you have a C/C++ DLL that you want to ship,
> and have various entry points in it (which can be called in any sequence
> or selection) turn around and call Java code, you probably want to
> create some sort of "helper class" that'll load the VM once (on first
> invocation), and then invoke the Java code underneath.
>
> In order to make this easier to encapsulate, your Java code should
> probably implement some standard interface, so that the boilerplate code
> to invoke it and pass parameters can be shared by the various library
> entry points..
>
> So the short answer is again: yes, it can be done, but it might be
> painful and messy.
> --
> Shankar.
>
>