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 than the part has changed the selector sent to the row object to retrieve the data for the cell.

The backgroundColor event signals the part has changed the Color of the column background.

The closedWidget event signals that the part has been closed.

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

The destroyedPart event signals that the part and its children have been destroyed. Any system resources associated with the destroyed parts have been released.

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

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

The foregroundColor event signals the part has changed the Color of the column foreground.

The graphicsDescriptor event signals the part has changed the image shown in the header of the part.

The heading event signals the part has changed the text that appears in the header 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.

The horizontalAlignment event signals the part has changed whether text in the cells of the part is left justified, right justified or centered. By default, text is left justified.

The imageOnRight event signals the part has changed whether the image and text in the header of the part are displayed with the image to the right of the text.

A labelString event signals the part that the label string (an invisible attribute) has changed.

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.

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

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

A width event signals that the part width has changed.