🚀 go-pugleaf

You cannot call any function from a dll. First you need to run javah to 
create C or C++ header file from your compiled Java class. After that 
you will need to implement that method to call native method with 
correct parameters.

- Alexey.

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
> 
> "Kevin Dean [TeamB]" <NkOdSePaAnM@datadevelopment.com> wrote in message
> news:xn0dyx2iu419bb001-kdean@www.teamb.com...
> 
>>yc wrote:
>>
>>
>>>Hi,
>>>I have a c dll (MyDll) stdcall fnc as follows.
>>>stdcall int MyFnc(int FileNo, int IOType, unsigned char *
>>>DataToWrite, unsigned char *  DataRead);
>>>
>>>I try to call from java code, but it gives me an error as follows.
>>>
>>>Exception in thread "main" java.lang.UnsatisfiedLinkError: Myfunc
>>>        at X.MyFnc(Native Method)
>>>        at X.main(X.java:6)
>>>
>>
>>That means that the Java process can't find the DLL in the system path.
>>Make sure that you add the appropriate directory to the PATH statement
>>or add -Djava.library.path=<dll_location> to the command line.
>>
>>-- 
>>Kevin Dean [TeamB]
>>Dolphin Data Development Ltd.
>>http://www.datadevelopment.com/
>>