title: Robot.mouseWheel doesn't work using Java
body: <p>All operations are:
  1, click the windows logo to open the "All Program"
  2, click "All Program"
  3, move mouse up to the program list
  4, wheeling down</p>
  
  <pre><code>Robot robot = new Robot();
  robot.mouseMove(35,1062);    //click windows logo
  robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
  robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
  robot.delay(1000);
  System.out.println("open windows");
  
  robot.mouseMove(70,947);
  robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
  robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
  System.out.println("open all program");
  robot.delay(1000);
  
  robot.mouseMove(88,510);
  System.out.println("move to chrome");
  robot.delay(1000);
  
  for(int index = 0; index &lt; 10; index++){
      robot.mouseWheel(1);
      robot.delay(1000);
  }
  </code></pre>
  
  <p>but the mouseWheel doesn't work.</p>