org.eclipse.swt.widgets

Class TaskBar

java.lang.Object

org.eclipse.swt.widgets.Widget

org.eclipse.swt.widgets.TaskBar

All Implemented Interfaces:

Adaptable

public class TaskBar
extends Widget

Instances of this class represent the system task bar.

Styles:

(none)

Events:

(none)

Since:

1.4

See Also:

Display.getSystemTaskBar(), Sample code and further information

Constructor Summary

Constructors

Constructor and Description
TaskBar()

Method Summary

Methods

Modifier and Type	Method and Description
TaskItem	getItem(int index) Returns the item at the given, zero-relative index in the receiver.
TaskItem	getItem(Shell shell) Returns the TaskItem for the given Shell or the TaskItem for the application if the Shell parameter is null.
int	getItemCount() Returns the number of items contained in the receiver.
TaskItem[]	getItems() Returns an array of TaskItems which are the items in the receiver.

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

addDisposeListener, addListener, checkSubclass, checkWidget, dispose, getAdapter, getData, getData, getDisplay, getListeners, getStyle, 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

Constructor Detail

TaskBar

public TaskBar()

Method Detail

getItem

public TaskItem 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:

java.lang.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

getItem

public TaskItem getItem(Shell shell)

Returns the TaskItem for the given Shell or the TaskItem for the application if the Shell parameter is null. If the requested item is not supported by the platform it returns null.

Parameters:

shell - the shell for which the task item is requested, or null to request the application item

Returns:

the task item for the given shell or the application

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

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 TaskItem[] getItems()

Returns an array of TaskItems 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