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## com.google.gwt.user.client.ui
Interface KeyboardListener

All Superinterfaces:
  java.util.EventListener

All Known Implementing Classes:
  DecoratedTabBar, DelegatingKeyboardListenerCollection, KeyboardListenerAdapter, TabBar

Deprecated. use `KeyDownHandler`, `KeyUpHandler` and/or `KeyPressHandler` instead

    @Deprecated
    public interface KeyboardListener

extends java.util.EventListener

Event listener interface for keyboard events.

Field Summary
`static int` | `KEY_ALT` Deprecated. use `KeyCodes.KEY_ALT` instead
`static int` | `KEY_BACKSPACE` Deprecated. use `KeyCodes.KEY_BACKSPACE` instead
`static int` | `KEY_CTRL` Deprecated. use `KeyCodes.KEY_CTRL` instead
`static int` | `KEY_DELETE` Deprecated. use `KeyCodes.KEY_DELETE` instead
`static int` | `KEY_DOWN` Deprecated. use `KeyCodes.KEY_DOWN` instead
`static int` | `KEY_END` Deprecated. use `KeyCodes.KEY_END` instead
`static int` | `KEY_ENTER` Deprecated. use `KeyCodes.KEY_ENTER` instead
`static int` | `KEY_ESCAPE` Deprecated. use `KeyCodes.KEY_ESCAPE` instead
`static int` | `KEY_HOME` Deprecated. use `KeyCodes.KEY_HOME` instead
`static int` | `KEY_LEFT` Deprecated. use `KeyCodes.KEY_LEFT` instead
`static int` | `KEY_PAGEDOWN` Deprecated. use `KeyCodes.KEY_PAGEDOWN` instead
`static int` | `KEY_PAGEUP` Deprecated. use `KeyCodes.KEY_PAGEUP` instead
`static int` | `KEY_RIGHT` Deprecated. use `KeyCodes.KEY_RIGHT` instead
`static int` | `KEY_SHIFT` Deprecated. use `KeyCodes.KEY_SHIFT` instead
`static int` | `KEY_TAB` Deprecated. use `KeyCodes.KEY_TAB` instead
`static int` | `KEY_UP` Deprecated. use `KeyCodes.KEY_UP` instead
`static int` | `MODIFIER_ALT` Deprecated. use `KeyEvent.isAltKeyDown()` instead
`static int` | `MODIFIER_CTRL` Deprecated. use `KeyEvent.isControlKeyDown()` instead
`static int` | `MODIFIER_META` Deprecated. use `KeyEvent.isMetaKeyDown()` instead
`static int` | `MODIFIER_SHIFT` Deprecated. use `KeyEvent.isShiftKeyDown()` instead

Method Summary
`void` | `onKeyDown(Widget sender, char keyCode, int modifiers)` Deprecated. use `KeyDownHandler.onKeyDown(com.google.gwt.event.dom.client.KeyDownEvent)` instead
`void` | `onKeyPress(Widget sender, char keyCode, int modifiers)` Deprecated. use `KeyPressHandler.onKeyPress(com.google.gwt.event.dom.client.KeyPressEvent)` instead
`void` | `onKeyUp(Widget sender, char keyCode, int modifiers)` Deprecated. use `KeyUpHandler.onKeyUp(com.google.gwt.event.dom.client.KeyUpEvent)` instead

Field Detail

### KEY_ALT

    @Deprecated
    static final int KEY_ALT

  Deprecated. use `KeyCodes.KEY_ALT` instead
  See Also:
    Constant Field Values

### KEY_BACKSPACE

    @Deprecated
    static final int KEY_BACKSPACE

  Deprecated. use `KeyCodes.KEY_BACKSPACE` instead
  See Also:
    Constant Field Values

### KEY_CTRL

    @Deprecated
    static final int KEY_CTRL

  Deprecated. use `KeyCodes.KEY_CTRL` instead
  See Also:
    Constant Field Values

### KEY_DELETE

    @Deprecated
    static final int KEY_DELETE

  Deprecated. use `KeyCodes.KEY_DELETE` instead
  See Also:
    Constant Field Values

### KEY_DOWN

    @Deprecated
    static final int KEY_DOWN

  Deprecated. use `KeyCodes.KEY_DOWN` instead
  See Also:
    Constant Field Values

### KEY_END

    @Deprecated
    static final int KEY_END

  Deprecated. use `KeyCodes.KEY_END` instead
  See Also:
    Constant Field Values

### KEY_ENTER

    @Deprecated
    static final int KEY_ENTER

  Deprecated. use `KeyCodes.KEY_ENTER` instead
  See Also:
    Constant Field Values

### KEY_ESCAPE

    @Deprecated
    static final int KEY_ESCAPE

  Deprecated. use `KeyCodes.KEY_ESCAPE` instead
  See Also:
    Constant Field Values

### KEY_HOME

    @Deprecated
    static final int KEY_HOME

  Deprecated. use `KeyCodes.KEY_HOME` instead
  See Also:
    Constant Field Values

### KEY_LEFT

    @Deprecated
    static final int KEY_LEFT

  Deprecated. use `KeyCodes.KEY_LEFT` instead
  See Also:
    Constant Field Values

### KEY_PAGEDOWN

    @Deprecated
    static final int KEY_PAGEDOWN

  Deprecated. use `KeyCodes.KEY_PAGEDOWN` instead
  See Also:
    Constant Field Values

### KEY_PAGEUP

    @Deprecated
    static final int KEY_PAGEUP

  Deprecated. use `KeyCodes.KEY_PAGEUP` instead
  See Also:
    Constant Field Values

### KEY_RIGHT

    @Deprecated
    static final int KEY_RIGHT

  Deprecated. use `KeyCodes.KEY_RIGHT` instead
  See Also:
    Constant Field Values

### KEY_SHIFT

    @Deprecated
    static final int KEY_SHIFT

  Deprecated. use `KeyCodes.KEY_SHIFT` instead
  See Also:
    Constant Field Values

### KEY_TAB

    @Deprecated
    static final int KEY_TAB

  Deprecated. use `KeyCodes.KEY_TAB` instead
  See Also:
    Constant Field Values

### KEY_UP

    @Deprecated
    static final int KEY_UP

  Deprecated. use `KeyCodes.KEY_UP` instead
  See Also:
    Constant Field Values

### MODIFIER_ALT

    @Deprecated
    static final int MODIFIER_ALT

  Deprecated. use `KeyEvent.isAltKeyDown()` instead
  See Also:
    Constant Field Values

### MODIFIER_CTRL

    @Deprecated
    static final int MODIFIER_CTRL

  Deprecated. use `KeyEvent.isControlKeyDown()` instead
  See Also:
    Constant Field Values

### MODIFIER_META

    @Deprecated
    static final int MODIFIER_META

  Deprecated. use `KeyEvent.isMetaKeyDown()` instead
  See Also:
    Constant Field Values

### MODIFIER_SHIFT

    @Deprecated
    static final int MODIFIER_SHIFT

  Deprecated. use `KeyEvent.isShiftKeyDown()` instead
  See Also:
    Constant Field Values

Method Detail

### onKeyDown

    @Deprecated
    void onKeyDown(Widget sender,
                              char keyCode,
                              int modifiers)

  Deprecated. use `KeyDownHandler.onKeyDown(com.google.gwt.event.dom.client.KeyDownEvent)` instead

  Fired when the user depresses a physical key.

  Parameters:
    `sender` - the widget that was focused when the event occurred.
    `keyCode` - the physical key that was depressed. Constants for this value are defined in this interface with the KEY prefix.
    `modifiers` - the modifier keys pressed at when the event occurred. This value is a combination of the bits defined by `MODIFIER_SHIFT`, `MODIFIER_CTRL`, and `MODIFIER_ALT`

### onKeyPress

    @Deprecated
    void onKeyPress(Widget sender,
                               char keyCode,
                               int modifiers)

  Deprecated. use `KeyPressHandler.onKeyPress(com.google.gwt.event.dom.client.KeyPressEvent)` instead

  Fired when a keyboard action generates a character. This occurs after onKeyDown and onKeyUp are fired for the physical key that was pressed.

  It should be noted that many browsers do not generate keypress events for non-printing keyCode values, such as `KEY_ENTER` or arrow keys. These keyCodes can be reliably captured either with `onKeyDown(Widget, char, int)` or `onKeyUp(Widget, char, int)`.

  Parameters:
    `sender` - the widget that was focused when the event occurred.
    `keyCode` - the Unicode character that was generated by the keyboard action.
    `modifiers` - the modifier keys pressed at when the event occurred. This value is a combination of the bits defined by `MODIFIER_SHIFT`, `MODIFIER_CTRL`, and `MODIFIER_ALT`

### onKeyUp

    @Deprecated
    void onKeyUp(Widget sender,
                            char keyCode,
                            int modifiers)

  Deprecated. use `KeyUpHandler.onKeyUp(com.google.gwt.event.dom.client.KeyUpEvent)` instead

  Fired when the user releases a physical key.

  Parameters:
    `sender` - the widget that was focused when the event occurred.
    `keyCode` - the physical key that was released. Constants for this value are defined in this interface with the KEY prefix.
    `modifiers` - the modifier keys pressed at when the event occurred. This value is a combination of the bits defined by `MODIFIER_SHIFT`, `MODIFIER_CTRL`, and `MODIFIER_ALT`

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