🚀 go-pugleaf

Hi !

I am encoutering a problem with JNI. I am trying to program a class that

would allow Java to access the W95/WNT Registry base and it seems that

the Java part of the program doesn't find the methods inside my dll :



Java source code :



package com.vigdor.vector;

public class Registres {

//Constants [skipped]..

  public Registres() {

         super();
	try {

         System.loadLibrary("Registres");
	} (catch Exception e) {
	 System.out.println("Erreur ! :"+e.getMessage())
	}

  }

    public native long setKey(int mainKey, String subKey, String entree,

String classe, String valeur);

    public native String getKey(int mainKey, String subKey, String

entree, String defaut);

}



C++ source code :



#include "com_vigdor_vector_Registres.h"

#include "winreg.h"

#include <windows.h>

#include <stdlib.h>



JNIEXPORT jlong JNICALL Java_com_vigdor_vector_Registres_setKey

  (JNIEnv *env, jobject obj, jint jMainKey, jstring jSubKey, jstring
jClasse, jstring jEntry, jstring jValue) {

//blah blah blah

	return(RegCloseKey(currentKey));

};



JNIEXPORT jstring JNICALL Java_com_vigdor_vector_Registres_getKey

  (JNIEnv *env, jobject obj, jint jMainKey, jstring jSubKey, jstring
jEntree, jstring jDefaut) {

//blah blah blah

  	return env-> NewStringUTF(retour);

};



The code compiles (with CodeWarrior 3) to a 1 kb Registres.dll. The java
code seems to find this dll (i.e. no UnsatisfiedLinkException during the
initialization) but as soon as I try to use either setKey or getKey, an
UnsatisfiedLinkException is thrown without message.
I have tried putting Registres.dll in the directories Windows,
Windows\System, Windows\System32, in the directory of the .class files
and in the directory of the final output file. 


Does anyone have an idea ?
Thanks in advance,
  David

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