如何在JNA包装器端隐藏C DLL函数的一些参数？

import com.sun.jna.Library;
import com.sun.jna.Native;
import com.sun.jna.Structure;

public interface MyDll extends Library {
    MyDll INSTANCE = Native.loadLibrary("mydll", MyDll.class);

    // 定义C DLL函数及其参数
    void myFunction(int visibleParam, HiddenParam hiddenParam);

    // 定义隐藏参数的结构体
    public static class HiddenParam extends Structure {
        public int hiddenField;

        @Override
        protected List<String> getFieldOrder() {
            return Arrays.asList("hiddenField");
        }
    }
}

public class Main {
    public static void main(String[] args) {
        MyDll.HiddenParam hiddenParam = new MyDll.HiddenParam();
        hiddenParam.hiddenField = 123;

        MyDll.INSTANCE.myFunction(456, hiddenParam);
    }
}