Package org.eclipse.swt.widgets

Class Tray

java.lang.Object

org.eclipse.swt.widgets.Widget

org.eclipse.swt.widgets.Tray

public class Tray
extends Widget

Instances of this class represent the system tray that is part of the task bar status area on some operating systems.

Styles:

(none)

Events:

(none)

IMPORTANT: This class is not intended to be subclassed.

Since:

3.0

See Also:

• Display.getSystemTray()
• Tray, TrayItem snippets
• Sample code and further information

Restriction:

This class is not intended to be subclassed by clients.

Method Summary

Modifier and Type	Method	Description
TrayItem	getItem(int index)	Returns the item at the given, zero-relative index in the receiver.
int	getItemCount()	Returns the number of items contained in the receiver.
TrayItem[]	getItems()	Returns an array of TrayItems which are the items in the receiver.

Methods inherited from class org.eclipse.swt.widgets.Widget

addDisposeListener, addListener, checkSubclass, checkWidget, dispose, getData, getData, getDisplay, getListeners, getStyle, isAutoDirection, isDisposed, isListening, notifyListeners, removeDisposeListener, removeListener, removeListener, reskin, setData, setData, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Details

getItem

public TrayItem getItem(int index)

Returns the item at the given, zero-relative index in the receiver. Throws an exception if the index is out of range.

Parameters:

index - the index of the item to return

Returns:

the item at the given index

Throws:

IllegalArgumentException -

• ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

getItemCount

public int getItemCount()

Returns the number of items contained in the receiver.

Returns:

the number of items

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

getItems

public TrayItem[] getItems()

Returns an array of TrayItems which are the items in the receiver.

Note: This is not the actual structure used by the receiver to maintain its list of items, so modifying the array will not affect the receiver.

Returns:

the items in the receiver

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver