Cannot press Window+L using robot in Java

问题

I am using the Robot class to simulate key press in Java. But i am unable to press Window key+L although i am able to press them individually. Here is my code:

private void pressKey()
{
    Robot r=new Robot();
    robot.keyPress(KeyEvent.VK_WINDOWS);
    robot.keyPress(KeyEvent.VK_L);
    robot.keyRelease(KeyEvent.VK_WINDOWS);
    robot.keyRelease(KeyEvent.VK_L);
}

回答1:

Try this instead:

Runtime.getRuntime().exec("rundll32 user32.dll,LockWorkStation");

回答2:

Try:

private void pressKey(){
   Robot r=new Robot();
   robot.keyPress(KeyEvent.VK_WINDOWS);
   robot.keyPress(KeyEvent.VK_L);
   robot.keyRelease(KeyEvent.VK_L);
   robot.keyRelease(KeyEvent.VK_WINDOWS);
}

回答3:

Try this:

robot.keyPress(KeyEvent.VK_WINDOWS);
robot.delay(100);
robot.keyPress(KeyEvent.VK_L);
robot.delay(200);
robot.keyRelease(KeyEvent.VK_L);
robot.delay(100);
robot.keyRelease(KeyEvent.VK_WINDOWS);

来源：https://stackoverflow.com/questions/13193293/cannot-press-windowl-using-robot-in-java