Robot Java class XP and Vista win7

• Java

The following java code will lock the desktop when running on Windows XP, but it will not lock the desktop when running on Vista or windows 7 I would appreciate it if someone could tell me how to use it in Vista and windows 7 using java only

import java.awt.AWTException;
import java.awt.Robot;
import java.awt.event.KeyEvent;

public class Roboto {
 //Lock windows desktop using "WinKey + L"
 public static void main(String[] args) {
  try {
   Robot r = new Robot();
   r.keyPress(KeyEvent.VK_WINDOWS);
   r.keyPress(KeyEvent.VK_L);
   r.keyRelease(KeyEvent.VK_L);
   r.keyRelease(KeyEvent.VK_WINDOWS);
  } catch (AWTException e) {
   e.printStackTrace();
  }
 }
}

Solution

It sounds like Vista's UAC prevents the JVM from sending events to the OS event queue Since you didn't mention it, I don't think you saw anything unusual Can you try running with administrator privileges?

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