🚀 go-pugleaf

Kevin/Alexey,

Thanks for the quick reply. He cleared up the basic issue of calling a dll
directly. First of all, I need to do some more reading up on JNI, I'm
obviously a little confused...but I guess what I am confused about is 1) is
the JNI C layer just an interface from Java to the DLL (when I ran javah, it
created a function called Java_DLLBridge_RprtMain which I'm hoping is just a
conduit from java to the DLL) or is 2) it actually asking for me to rewrite
a function that already works in a DLL but with parameters that Java can
communicate with. I'm guessing it's the 1st one, because it seems the second
alternative would defeat the whole purpose of using a fully
functioning/tested dll. Anyway, thanks for the info.

Chris

"Kevin Dean [TeamB]" <NkOdSePaAnM@datadevelopment.com> wrote in message
news:xn0dyxhy5p2f42000-kdean@www.teamb.com...
> Chris Lafferty wrote:
>
> > Kevin,
> >
> > I am having a similar problem. I have done what you suggested below,
> > adding the -Djava.library.path=  to the location of the .DLL. It
> > seems more like it cannot find the function inside the DLL as opposed
> > to the DLL itself as before I copied the DLL to that location, the
> > error described the DLL name instead of the funciton. I wrote a test
> > DLL and was able to call it from Delphi, so I know the methods are
> > public and exported properly. However, when I run from java, I get
> > the same error as yc did. Here is my code and error:
> >
> > public class DLLBridge
> > {
> >     public DLLBridge() {
> >     }
> >     public native void RprtMain();
> >
> >     static{
> >         System.loadLibrary("Reports");
> >     }
> >
> >     public static void main(String[] args) {
> >         DLLBridge dbridge = new DLLBridge();
> >         dbridge.RprtMain();
> >     }
> > }
> >
> > java.lang.UnsatisfiedLinkError: RprtMain
> >  at com.util.DLLBridge.RprtMain(Native Method)
> >  at com.util.DLLBridge.main(DLLBridge.java:21)
> > Exception in thread "main"
> >
> > Is there something I'm missing? Thanks in advance,
> > Chris
>
> The post from Alexey is likely to be more correct than the one I have
> given you.  I'm not intimately familiar with JNI and so gave the answer
> that solves about 90% of the JNI questions we get.  Have you done what
> Alexey suggests?
>
> -- 
> Kevin Dean [TeamB]
> Dolphin Data Development Ltd.
> http://www.datadevelopment.com/
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