如何用JNA创建一个全局钩子usb设备？

Question

我尝试使用基于此鼠标挂钩示例（http://www.javawebdevelop.com/3205624/）的Windows挂钩获取WM_DEVICECHANGE通知，但是从不调用包含此常量的方法，并且当将usb设备放入我的机器时我得不到任何通知。真诚地，我不知道如何解决。欢迎任何建议！

我正在使用NetBeansIDE，这是我现在尝试的代码：

package testusbnotification;

public class TESTUSBNOTIFICATION {

    public static void messagem(String s) {
        JOptionPane.showMessageDialog(null, s);
    }

    public static final int WH_GETMESSAGE = 3;
    static HHOOK msgHook;   
    static HOOKPROC msgProc;   

    public interface MyWinUser extends WinUser {
        public static final int WM_DEVICECHANGE = 0x0219;
    }

    /**
     * @param args the command line arguments
     */

    public static void main(String[] args) {

        msgProc = new GetMsgProc() {     
            @Override
            public LRESULT callback(int nCode, WPARAM wParam, MSG lParam) {
                if (nCode >= 0) {
                    switch(wParam.intValue()) {    
                    case MyWinUser.WM_DEVICECHANGE:
                        messagem("A Usb device was detected!");                           
                        break;
                    }
                }
                return User32.INSTANCE.CallNextHookEx(msgHook, nCode, wParam, lParam.getPointer());
            }
        };

        HMODULE hMod = Kernel32.INSTANCE.GetModuleHandle(null);
        msgHook = User32.INSTANCE.SetWindowsHookEx(WH_GETMESSAGE, msgProc, hMod, 0);

        MSG msg = new MSG();
        while (User32.INSTANCE.GetMessage(msg, null, 0, 0) != 0) {
            User32.INSTANCE.TranslateMessage(msg);
            User32.INSTANCE.DispatchMessage(msg);       
        }

        User32.INSTANCE.UnhookWindowsHookEx(msgHook);
    }

    public static interface GetMsgProc extends HOOKPROC {
        LRESULT callback(int nCode, WPARAM wParam, MSG lParam);
    }

}