Serializable
public class WindowEvent extends ComponentEvent
The event is passed to every WindowListener
or WindowAdapter
object which registered to receive such events using the window's addWindowListener
method. (WindowAdapter
objects implement the WindowListener
interface.) Each such listener object gets this WindowEvent
when the event occurs.
An unspecified behavior will be caused if the id
parameter of any particular WindowEvent
instance is not in the range from WINDOW_FIRST
to WINDOW_LAST
.
Modifier and Type | Field | Description |
---|---|---|
static final int |
WINDOW_ACTIVATED |
The window-activated event type. |
static final int |
WINDOW_CLOSED |
The window closed event. |
static final int |
WINDOW_CLOSING |
The "window is closing" event. |
static final int |
WINDOW_DEACTIVATED |
The window-deactivated event type. |
static final int |
WINDOW_DEICONIFIED |
The window deiconified event type. |
static final int |
WINDOW_FIRST |
The first number in the range of ids used for window events. |
static final int |
WINDOW_GAINED_FOCUS |
The window-gained-focus event type. |
static final int |
WINDOW_ICONIFIED |
The window iconified event. |
static final int |
WINDOW_LAST |
The last number in the range of ids used for window events. |
static final int |
WINDOW_LOST_FOCUS |
The window-lost-focus event type. |
static final int |
WINDOW_OPENED |
The window opened event. |
static final int |
WINDOW_STATE_CHANGED |
The window-state-changed event type. |
COMPONENT_FIRST, COMPONENT_HIDDEN, COMPONENT_LAST, COMPONENT_MOVED, COMPONENT_RESIZED, COMPONENT_SHOWN
ACTION_EVENT_MASK, ADJUSTMENT_EVENT_MASK, COMPONENT_EVENT_MASK, consumed, CONTAINER_EVENT_MASK, FOCUS_EVENT_MASK, HIERARCHY_BOUNDS_EVENT_MASK, HIERARCHY_EVENT_MASK, id, INPUT_METHOD_EVENT_MASK, INVOCATION_EVENT_MASK, ITEM_EVENT_MASK, KEY_EVENT_MASK, MOUSE_EVENT_MASK, MOUSE_MOTION_EVENT_MASK, MOUSE_WHEEL_EVENT_MASK, PAINT_EVENT_MASK, RESERVED_ID_MAX, TEXT_EVENT_MASK, WINDOW_EVENT_MASK, WINDOW_FOCUS_EVENT_MASK, WINDOW_STATE_EVENT_MASK
source
Constructor | Description |
---|---|
WindowEvent |
Constructs a WindowEvent object. |
WindowEvent |
Constructs a WindowEvent object with the specified previous and new window states. |
WindowEvent |
Constructs a WindowEvent object with the specified opposite Window . |
WindowEvent |
Constructs a WindowEvent object. |
Modifier and Type | Method | Description |
---|---|---|
int |
getNewState() |
For WINDOW_STATE_CHANGED events returns the new state of the window. |
int |
getOldState() |
For WINDOW_STATE_CHANGED events returns the previous state of the window. |
Window |
getOppositeWindow() |
Returns the other Window involved in this focus or activation change. |
Window |
getWindow() |
Returns the originator of the event. |
String |
paramString() |
Returns a parameter string identifying this event. |
getComponent
getSource
public static final int WINDOW_FIRST
@Native public static final int WINDOW_OPENED
@Native public static final int WINDOW_CLOSING
@Native public static final int WINDOW_CLOSED
@Native public static final int WINDOW_ICONIFIED
@Native public static final int WINDOW_DEICONIFIED
@Native public static final int WINDOW_ACTIVATED
@Native public static final int WINDOW_DEACTIVATED
@Native public static final int WINDOW_GAINED_FOCUS
@Native public static final int WINDOW_LOST_FOCUS
@Native public static final int WINDOW_STATE_CHANGED
public static final int WINDOW_LAST
public WindowEvent(Window source, int id, Window opposite, int oldState, int newState)
WindowEvent
object. This method throws an IllegalArgumentException
if source
is null
.
source
- The Window
object that originated the eventid
- An integer indicating the type of event. For information on allowable values, see the class description for WindowEvent
opposite
- The other window involved in the focus or activation change, or null
oldState
- Previous state of the window for window state change event. See #getOldState()
for allowable valuesnewState
- New state of the window for window state change event. See #getNewState()
for allowable valuesIllegalArgumentException
- if source
is nullpublic WindowEvent(Window source, int id, Window opposite)
WindowEvent
object with the specified opposite Window
. The opposite Window
is the other Window
involved in this focus or activation change. For a WINDOW_ACTIVATED
or WINDOW_GAINED_FOCUS
event, this is the Window
that lost activation or focus. For a WINDOW_DEACTIVATED
or WINDOW_LOST_FOCUS
event, this is the Window
that gained activation or focus. If this focus change occurs with a native application, with a Java application in a different VM, or with no other Window
, then the opposite Window is null
. This method throws an IllegalArgumentException
if source
is null
.
source
- The Window
object that originated the eventid
- An integer indicating the type of event. For information on allowable values, see the class description for WindowEvent
. It is expected that this constructor will not be used for other then WINDOW_ACTIVATED
,WINDOW_DEACTIVATED
, WINDOW_GAINED_FOCUS
, or WINDOW_LOST_FOCUS
. WindowEvent
types, because the opposite Window
of other event types will always be null
.opposite
- The other Window
involved in the focus or activation change, or null
IllegalArgumentException
- if source
is nullpublic WindowEvent(Window source, int id, int oldState, int newState)
WindowEvent
object with the specified previous and new window states. This method throws an IllegalArgumentException
if source
is null
.
source
- The Window
object that originated the eventid
- An integer indicating the type of event. For information on allowable values, see the class description for WindowEvent
. It is expected that this constructor will not be used for other then WINDOW_STATE_CHANGED
WindowEvent
types, because the previous and new window states are meaningless for other event types.oldState
- An integer representing the previous window state. See #getOldState()
for allowable valuesnewState
- An integer representing the new window state. See #getNewState()
for allowable valuesIllegalArgumentException
- if source
is nullpublic WindowEvent(Window source, int id)
WindowEvent
object. This method throws an IllegalArgumentException
if source
is null
.
source
- The Window
object that originated the eventid
- An integer indicating the type of event. For information on allowable values, see the class description for WindowEvent
.IllegalArgumentException
- if source
is nullpublic Window getWindow()
public Window getOppositeWindow()
public int getOldState()
WINDOW_STATE_CHANGED
events returns the previous state of the window. The state is represented as a bitwise mask. NORMAL
ICONIFIED
MAXIMIZED_HORIZ
MAXIMIZED_VERT
MAXIMIZED_BOTH
MAXIMIZED_HORIZ
and MAXIMIZED_VERT
. public int getNewState()
WINDOW_STATE_CHANGED
events returns the new state of the window. The state is represented as a bitwise mask. NORMAL
ICONIFIED
MAXIMIZED_HORIZ
MAXIMIZED_VERT
MAXIMIZED_BOTH
MAXIMIZED_HORIZ
and MAXIMIZED_VERT
. public String paramString()
paramString
in class ComponentEvent
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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
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https://docs.oracle.com/en/java/javase/21/docs/api/java.desktop/java/awt/event/WindowEvent.html