File	Doc	Category	Size	Date	Package
WindowEvent.java	API Doc	Java SE 6 API	14584	Tue Jun 10 00:25:24 BST 2008	java.awt.event

WindowEvent

• java.lang.Object
  • java.util.EventObject
    • java.awt.AWTEvent
      • java.awt.event.ComponentEvent

Fields Summary
public static final int	WINDOW_FIRST The first number in the range of ids used for window events.
public static final int	WINDOW_OPENED The window opened event. This event is delivered only the first time a window is made visible.
public static final int	WINDOW_CLOSING The "window is closing" event. This event is delivered when the user attempts to close the window from the window's system menu. If the program does not explicitly hide or dispose the window while processing this event, the window close operation will be cancelled.
public static final int	WINDOW_CLOSED The window closed event. This event is delivered after the window has been closed as the result of a call to dispose.
public static final int	WINDOW_ICONIFIED The window iconified event. This event is delivered when the window has been changed from a normal to a minimized state. For many platforms, a minimized window is displayed as the icon specified in the window's iconImage property.
public static final int	WINDOW_DEICONIFIED The window deiconified event type. This event is delivered when the window has been changed from a minimized to a normal state.
public static final int	WINDOW_ACTIVATED The window-activated event type. This event is delivered when the Window becomes the active Window. Only a Frame or a Dialog can be the active Window. The native windowing system may denote the active Window or its children with special decorations, such as a highlighted title bar. The active Window is always either the focused Window, or the first Frame or Dialog that is an owner of the focused Window.
public static final int	WINDOW_DEACTIVATED The window-deactivated event type. This event is delivered when the Window is no longer the active Window. Only a Frame or a Dialog can be the active Window. The native windowing system may denote the active Window or its children with special decorations, such as a highlighted title bar. The active Window is always either the focused Window, or the first Frame or Dialog that is an owner of the focused Window.
public static final int	WINDOW_GAINED_FOCUS The window-gained-focus event type. This event is delivered when the Window becomes the focused Window, which means that the Window, or one of its subcomponents, will receive keyboard events.
public static final int	WINDOW_LOST_FOCUS The window-lost-focus event type. This event is delivered when a Window is no longer the focused Window, which means keyboard events will no longer be delivered to the Window or any of its subcomponents.
public static final int	WINDOW_STATE_CHANGED The window-state-changed event type. This event is delivered when a Window's state is changed by virtue of it being iconified, maximized etc.
public static final int	WINDOW_LAST The last number in the range of ids used for window events.
transient Window	opposite 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. For any other type of WindowEvent, or if the focus or activation change occurs with a native application, a Java application in a different VM, or with no other Window, null is returned.
int	oldState TBS
int	newState
private static final long	serialVersionUID

Constructors Summary
public WindowEvent(Window source, int id, Window opposite, int oldState, int newState) Constructs a WindowEvent object. Note that passing in an invalid id results in unspecified behavior. This method throws an IllegalArgumentException if source is null. param source the Window object that originated the event param id an integer indicating the type of event. param opposite the other window involved in the focus or activation change, or null param oldState previous state of the window for window state change event param newState new state of the window for window state change event throws IllegalArgumentException if source is null since 1.4 super(source, id); this.opposite = opposite; this.oldState = oldState; this.newState = newState;
public WindowEvent(Window source, int id, Window opposite) Constructs a 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. Note that passing in an invalid id results in unspecified behavior. This method throws an IllegalArgumentException if source is null. param source the Window object that originated the event param id WINDOW_ACTIVATED, WINDOW_DEACTIVATED, WINDOW_GAINED_FOCUS, or WINDOW_LOST_FOCUS. It is expected that this constructor will not be used for other WindowEvent types because the opposite Window of such events will always be null param opposite the other Window involved in the focus or activation change, or null throws IllegalArgumentException if source is null since 1.4 this(source, id, opposite, 0, 0);
public WindowEvent(Window source, int id, int oldState, int newState) Constructs a WindowEvent object with the specified previous and new window states. Note that passing in an invalid id results in unspecified behavior. This method throws an IllegalArgumentException if source is null. param source the Window object that originated the event param id WINDOW_STATE_CHANGED event type. It is expected that this constructor will not be used for other WindowEvent types, because the previous and new window states are meaningless for other event types. param oldState an integer representing the previous window state param newState an integer representing the new window state throws IllegalArgumentException if source is null since 1.4 this(source, id, null, oldState, newState);
public WindowEvent(Window source, int id) Constructs a WindowEvent object. Note that passing in an invalid id results in unspecified behavior. This method throws an IllegalArgumentException if source is null. param source the Window object that originated the event param id an integer indicating the type of event throws IllegalArgumentException if source is null this(source, id, null, 0, 0);

Methods Summary
public int	getNewState() For WINDOW_STATE_CHANGED events returns the new state of the window. The state is represented as a bitwise mask. NORMAL Indicates that no state bits are set. ICONIFIED MAXIMIZED_HORIZ MAXIMIZED_VERT MAXIMIZED_BOTH Concatenates MAXIMIZED_HORIZ and MAXIMIZED_VERT. return a bitwise mask of the new window state see java.awt.Frame#getExtendedState() since 1.4 return newState;
public int	getOldState() For WINDOW_STATE_CHANGED events returns the previous state of the window. The state is represented as a bitwise mask. NORMAL Indicates that no state bits are set. ICONIFIED MAXIMIZED_HORIZ MAXIMIZED_VERT MAXIMIZED_BOTH Concatenates MAXIMIZED_HORIZ and MAXIMIZED_VERT. return a bitwise mask of the previous window state see java.awt.Frame#getExtendedState() since 1.4 return oldState;
public java.awt.Window	getOppositeWindow() Returns 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. For any other type of WindowEvent, or if the focus or activation change occurs with a native application, with a Java application in a different VM or context, or with no other Window, null is returned. return the other Window involved in the focus or activation change, or null since 1.4 if (opposite == null) { return null; } return (SunToolkit.targetToAppContext(opposite) == AppContext.getAppContext()) ? opposite : null;
public java.awt.Window	getWindow() Returns the originator of the event. return the Window object that originated the event return (source instanceof Window) ? (Window)source : null;
public java.lang.String	paramString() Returns a parameter string identifying this event. This method is useful for event-logging and for debugging. return a string identifying the event and its attributes String typeStr; switch(id) { case WINDOW_OPENED: typeStr = "WINDOW_OPENED"; break; case WINDOW_CLOSING: typeStr = "WINDOW_CLOSING"; break; case WINDOW_CLOSED: typeStr = "WINDOW_CLOSED"; break; case WINDOW_ICONIFIED: typeStr = "WINDOW_ICONIFIED"; break; case WINDOW_DEICONIFIED: typeStr = "WINDOW_DEICONIFIED"; break; case WINDOW_ACTIVATED: typeStr = "WINDOW_ACTIVATED"; break; case WINDOW_DEACTIVATED: typeStr = "WINDOW_DEACTIVATED"; break; case WINDOW_GAINED_FOCUS: typeStr = "WINDOW_GAINED_FOCUS"; break; case WINDOW_LOST_FOCUS: typeStr = "WINDOW_LOST_FOCUS"; break; case WINDOW_STATE_CHANGED: typeStr = "WINDOW_STATE_CHANGED"; break; default: typeStr = "unknown type"; } typeStr += ",opposite=" + getOppositeWindow() + ",oldState=" + oldState + ",newState=" + newState; return typeStr;