看样子你需要打电话GetMessage或者PeekMessage，这是奇怪的-这是不是说明文档中提到的钩子或LowLevelKeyboardProc。我对API的这一部分了解不足，无法猜测原因。
我只是使用示例类：
import com.sun.jna.examples.win32.*;
public class Callback {
public static User32.HHOOK hHook;
public static User32.LowLevelKeyboardProc lpfn;
public static volatile boolean quit = false;
public static void main(String[] args) throws Exception {
W32API.HMODULE hMod = Kernel32.INSTANCE.GetModuleHandle(null);
lpfn = new User32.LowLevelKeyboardProc() {
public W32API.LRESULT callback(int nCode, W32API.WPARAM wParam,
User32.KBDLLHOOKSTRUCT lParam) {
System.out.println("here");
quit = true;
return User32.INSTANCE.CallNextHookEx(hHook, nCode, wParam, lParam
.getPointer());
}
};
hHook = User32.INSTANCE.SetWindowsHookEx(User32.WH_KEYBOARD_LL, lpfn, hMod,
0);
if (hHook == null)
return;
User32.MSG msg = new User32.MSG();
while (!quit) {
User32.INSTANCE.PeekMessage(msg, null, 0, 0, 0);
Thread.sleep(100);
}
if (User32.INSTANCE.UnhookWindowsHookEx(hHook))
System.out.println("Unhooked");
}
}
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