The aboutToCloseWidget event signals that the part is about to be closed.

If you need to perform any actions just before the window closes, connect the aboutToCloseWidget event of the Window part to an action in your part.

The aboutToMapWidget event signals that the part is about to be shown on the screen. If you need to take any actions or set any visual attributes on the part before it is shown, connect to this event. If you hide and show the part rather than closing and opening it (typically for performance reasons), you can use this event to refresh the part data before it appears.

The aboutToOpenWidget event signals that the part is about to be opened. This event is signaled just before the part is displayed on the screen.

If you need to perform any actions just before the window opens, connect the aboutToOpenWidget event of the Window part to an action in your part.

The aboutToUnmapWidget event signals that the part is about to be hidden.

The attributeName event signals the part that the name of the attribute within the collection of items is displayed in the part.

The backgroundColor event signals the part that the background color has changed.

The borderWidth event signals the part that the width of the border, specified in pixels, has changed.

The closedWidget event signals that the part has been closed.

The configuredWidget event signals that the part has been moved or resized.

A defaultGraphicsDescriptor event indicates the graphic to use as the default icon or bitmap for an item in the tree view, that is not selected, has changed.

A defaultSelectedGraphicsDescriptor event indicates the graphic to use as the default icon or bitmap for an item in the tree view, that is selected, has changed.

The destroyPart event indicates the part and its children have been destroyed and all associated resources have been released.

For more information on the dragDropSpec event, refer to ***.

The enabled event signals that the part is available for selection.

The fontName event signals the part which font to use for the text displayed in the part.

The foregroundColor event signals the part the name of the RGB color, to use, for the foreground of the part.

The framingSpec event signals the part that the edge specifications for the part have changed. The edge specifications determine the width, height, and position of the part.

A helpFile event indicates that a signal is sent to the part that the help file associated with the part has changed

A helpKeysId event indicates that the ID of the keys, help has associated with the part, has changed. The ID can be a string or an integer value.

The helpRequested event signals that help has been requested. You can connect the helpRequested event to an action that displays your own help, such as a message box. If the action you connect this event to does not return nil, default help processing occurs, using the specified help file and help topic.

A helpTitle event signals the part that the title of the help window associated with that part has changed

The helpTopicId event signals a change in the ID of the help topic associated with the part. The ID can be a string or an integer.

An indentation event indicates the distance each node is indented has changed.

The itemAdded event signals that an item has been added to the tree view.

The itemCollapsed event signals that an item has been collapsed in the tree view.

The itemExpanded event signals that an item has been expanded in the tree view.

The mappedWhenManaged event signals the part to be visible if the mappedWhenManaged attribute has been set to true.

The mappedWidget event signals that the part has been shown on the screen.

A menu event signals that a change in which menu part to use, as the parts menu bar or pop-up menu, has occurred.

The openedWidget event signals that the part has been opened and displayed on the screen.

A selectedItems event indicates that the selected items have been highlighted (given focus).

A selectedNode event signals a change in the node that is currently selected in the tree view.

A self event indicates that the value of the target part itself has changed.

A showImages event indicates that the tree view displays its images.

A showLines event indicates that the tree view displays lines between nodes.

A showPlusMinus event indicates that the tree view displays plus/minus icons.

A showRootLines event indicates that the tree view displays lines between root nodes.

A tabGroup event signals the part that it is included as a tab stop and can be accessed via the Tab or Backtab keys

The traversalOn property specifies whether users can access the part using the cursor movement keys. If the part is specified as a tab stop by using the tabGroup property, users also can use the Tab and Backtab keys to access the part.

The unmappedWidget event signals that the part is about to be hidden.

A visibleItemCount event indicates a change in the number of list items that can fit in the visible workspace.