import com.sun.jna.examples.win32.Kernel32;

import com.sun.jna.examples.win32.User32;

import com.sun.jna.examples.win32.User32.HHOOK;

import com.sun.jna.examples.win32.User32.KBDLLHOOKSTRUCT;

import com.sun.jna.examples.win32.User32.LowLevelKeyboardProc;

import com.sun.jna.examples.win32.User32.MSG;

import com.sun.jna.examples.win32.W32API.HMODULE;

import com.sun.jna.examples.win32.W32API.LRESULT;

import com.sun.jna.examples.win32.W32API.WPARAM;

public class Dlltest extends Thread{

private static volatile boolean quit = false;

private static HHOOK hhk;

private static LowLevelKeyboardProc keyboardHook;

int WH_KEYBOARD_LL = 13;

public Dlltest() {

new Thread(this).start();

}

@Override

public void run() {

// TODO 자동 생성된 메소드 스텁

super.run();

final User32 lib = User32.INSTANCE; 

HMODULE hMod = Kernel32.INSTANCE.GetModuleHandle(null);

keyboardHook = new LowLevelKeyboardProc() {

public LRESULT callback(int nCode, WPARAM wParam,

KBDLLHOOKSTRUCT info) {

if (nCode >= 0) {

test.area.setText("in callback, key=" + info.vkCode);

System.err.println("in callback, key=" + info.vkCode);

if (info.vkCode == 81) {

quit = true;

}

}

return lib.CallNextHookEx(hhk, nCode, wParam, info.getPointer());

}

};

hhk = lib.SetWindowsHookEx(WH_KEYBOARD_LL, keyboardHook, hMod,0);

System.out.println("Keyboard hook installed, type anywhere, 'q' to quit");

new Thread() {

public void run() {

while (!quit) {

try {

Thread.sleep(10);

} catch (Exception e) {

}

}

System.err.println("unhook and exit");

lib.UnhookWindowsHookEx(hhk);

System.exit(0);      

}

}.start();

// This bit never returns from GetMessage

int result;

MSG msg = new MSG(); 

while ((result = lib.GetMessage(msg, null, 0, 0)) != 0) {

if (result == -1) {

System.err.println("error in get message");

break;

} else {      

System.err.println("got message");    

lib.TranslateMessage(msg);

lib.DispatchMessage(msg);

}

}

System.out.println(result);

lib.UnhookWindowsHookEx(hhk);

}

}

//============================================

JNA 를 사용한 java 에서 키보드 전역 후킹