How Can I load third party dll in another dll and used in java native interface

See more:

Java

DLL

I have one dll, I want to load that dll into java native interface but it was not working properly. so now i try to create new dll file and load existing dll into that new dll file and access method from existing dll . How Can i do this ??. Please help me.

Following code which i write in .c file

#include "stdafx.h"
#include <basetyps.h>
#include <jni.h>
#include "HelloPopup.h"
#include <windows.h>

typedef int * (_stdcall * OPENCOM) (int ComPort);
HINSTANCE dllHandle;
int result;


/*
 * Class:     HelloPopup
 * Method:    OpenSerialPort
 * Signature: (I)I
 */`enter code here`

JNIEXPORT jint JNICALL Java_HelloPopup_OpenSerialPortDll
  (JNIEnv * env, jobject obj, jint ComPort)
{
    OPENCOM pOpenCom ;
    dllHandle=LoadLibrary ("AlzData.dll");
    POpenCom = (OPENCOM) GetProcAddress (dllHandle, "OpenSerialPort");
    int * ret = (* pOpenCom) (ComPort);
    result=pOpenCom(ComPort);
    FreeLibrary (dllHandle);

    return result;
}

.. but when i call the method in java native interface i was got an error..So this code i am little bit confused about this code it is correct or not please help me.