🚀 go-pugleaf

>I use the the method System.LoadLibrary("xxx") where xxx is the name of the
>dll. The function that I want to call is declared public native in the java
>file.
>At runtime, I have the following exception : java.lang.UnsatisfiedLinkError
>: yyy where yyy is the function that I call.
>
>Can you help me to fix this ? Do you know examples of DLL call from java
>application ?


When you declare a native function, such as:

package MyPackage;
...
public native void myFunc();

the C header file would have the function Java_MyPackage_myFunc.  JNI calls
use this naming convention, meaning that if the DLL has a function called
myFunc, you can't call it directly - the DLL must have a function called
Java_MyPackage_myFunc.
The way around this that I have used is to create a second DLL as a wrapper
for the original.  I doubt there is any way to create a DLL from within
Java - I use C++ or Delphi.  The additional DLL would use the JNI naming
conventions (Java_MyPackage_myFunc), and would do all necessary type
conversions (these are a total pain), and then call the original DLL using
the real naming (myFunc).
If anybody knows of a better way to do this, PLEASE LET ME KNOW!!!  This is
cumbersome at best, but it works.


Hope this helps,
Jason