MouseWheelListener (Java SE 26 & JDK 26)
Description: declaration: module: java.desktop, package: java.awt.event, interface: MouseWheelListener
Keywords: java.awt.event.MouseWheelListener interface

# Interface MouseWheelListener

All Superinterfaces:
  `EventListener`

All Known Implementing Classes:
  `AWTEventMulticaster, BasicComboPopup.InvocationMouseHandler, BasicComboPopup.ListMouseHandler, BasicDesktopIconUI.MouseInputHandler, BasicFileChooserUI.DoubleClickListener, BasicInternalFrameUI.BorderListener, BasicScrollBarUI.ArrowButtonListener, BasicScrollBarUI.TrackListener, BasicScrollPaneUI.MouseWheelHandler, BasicSliderUI.TrackListener, BasicSplitPaneDivider.MouseHandler, BasicTabbedPaneUI.MouseHandler, BasicTreeUI.MouseHandler, FormView.MouseEventListener, HTMLEditorKit.LinkController, MetalFileChooserUI.SingleClickListener, MouseAdapter, MouseInputAdapter, ToolTipManager`

public interface MouseWheelListener extends EventListener
The listener interface for receiving mouse wheel events on a component. (For clicks and other mouse events, use the `MouseListener`. For mouse movement and drags, use the `MouseMotionListener`.)

The class that is interested in processing a mouse wheel event implements this interface (and all the methods it contains).

The listener object created from that class is then registered with a component using the component's `addMouseWheelListener` method. A mouse wheel event is generated when the mouse wheel is rotated. When a mouse wheel event occurs, that object's `mouseWheelMoved` method is invoked.

For information on how mouse wheel events are dispatched, see the class description for `MouseWheelEvent`.

Since:
  1.4
See Also:
  - `MouseWheelEvent`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `void`
  `mouseWheelMoved(MouseWheelEvent e)`
  Invoked when the mouse wheel is rotated.

- ## Method Details

  - ### mouseWheelMoved

    void mouseWheelMoved(MouseWheelEvent e)
    Invoked when the mouse wheel is rotated.
    Parameters:
      `e` - the event to be processed
    See Also:
      - `MouseWheelEvent`