How to pass unsigned int to JNI?

Question

Java

Hello.

I have a library written in C (not by me). It has a method:

HRESULT ZR_Initialize(
UINT nFlags
);

The C# examples use this method like this:

[DllImport(ZrDllName, CallingConvention = CallingConvention.StdCall, EntryPoint = "ZR_Initialize")]
        public static extern int ZR_Initialize(UInt32 nFlags);

I'm trying to do this in Java:

public class ZReader {
    static {
        System.loadLibrary("ZReader");
    }

    native static public int ZR_Initialize(int Flags);
}

But I get: Exception in thread "main" java.lang.UnsatisfiedLinkError: ru.semihal.sdkklientiks.ZReader.ZR_Initialize(I)I

Please tell me how to call this method correctly and what am I doing wrong?

Answer 1

if the library was not specifically written for JNI, then nothing will come of it. But it will work if you use JNA