Calling Functions of Loading DLL using java

I have a dll file
I know the functions which are ther in the dll
But how to call those functions using JAVA ?
can anyone tell me how to do the same...
Thanx in advance
regards,
Ritesh

I assume that you have a regular DLL and that the functions in that DLL are exported and that you know the signatures of each function.
With that in mind, you will need to use the Java Native Interface (JNI), to call those functions from Java. In a nutshell, you will need to create at least one class which declares some native methods, code a class static code block to load the JNI-DLL you are about to create, compile the class(es), run the javah tool supplied with the JDK which will emit a C compatible header file, implement the functions from the generated header file and compile that source file to into a DLL. It would be in this DLL that you would use the functions in the DLL that you ultimately want to access. So, what you wind up doing is creating a wrapper DLL.
Take a look at the JNI tutorial trail from Sun at http://java.sun.com/docs/books/tutorial/native1.1/index.html.

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