Java 类com.sun.jna.platform.win32.WinUser.HOOKPROC 实例源码

public static void main(String[] args) throws Exception {
    HOOKPROC hookProc = new HOOKPROC_bg();
    HINSTANCE hInst = Kernel32.INSTANCE.GetModuleHandle(null);

    User32.HHOOK hHook = User32.INSTANCE.SetWindowsHookEx(User32.WH_KEYBOARD_LL, hookProc, hInst, 0);
    if (hHook == null)
        return;
    User32.MSG msg = new User32.MSG();
    System.err.println("Please press any key ....");
    while (true) {
        User32.INSTANCE.GetMessage(msg, null, 0, 0);
    }
}

public synchronized void registerMouseUpListner(Runnable action,
        Executor executor)
{
    if (thrd != null)
        return;
    this.action = action;
    thrd = new Thread(new Runnable()
    {

        public void run()
        {
            try
            {
                if (!isHooked)
                {
                    hhk = USER32INST.SetWindowsHookEx(14,
                            (HOOKPROC) mouseHook,
                            KERNEL32INST.GetModuleHandle(null), 0);
                    isHooked = true;
                    MSG msg = new MSG();
                    while ((USER32INST.GetMessage(msg, null, 0, 0)) != 0)
                    {
                        System.out.println("got message");
                        USER32INST.TranslateMessage(msg);
                        USER32INST.DispatchMessage(msg);
                        System.out.print(isHooked);
                        if (!isHooked)
                            break;
                    }
                }
                else
                    System.out.println("The Hook is already installed.");
            }
            catch (Exception e)
            {
                System.err.println(e.getMessage());
                System.err.println("Caught exception in MouseHook!");
            }
            // System.out.println("terminated ");
            USER32INST.UnhookWindowsHookEx(hhk);
            hhk = null;
        }

    }, "Named thread");
    threadFinish = false;
    thrd.start();

}