The aboutToBeSwitchedFrom event signals that the notebook page no longer has the focus and the notebook is switching to another page.

The aboutToBeSwitchedTo event signals that the notebook page is about to become active and the notebook is switching to the page.

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

The backgroundGraphicsDescriptor event indicates a change in the icon, bitmap, or image that is used for the part's background.

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

The buttonFontName event indicates a change in the font used for the buttons in the part.

The closedWidget event signals that the part has been closed.

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

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.

A fractionBase event signals the denominator used in the fraction to calculate the percentage for the proportional spacing has changed. The default value is 100.

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 graphicsDescriptor event signals the part that an icon, bitmap, or image is being used, instead of text, for the label.

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.

A horizontalSpacing event signals a change in horizontal space between the part and its children. The default is 0.

A hoverHelpEnabled event signals the part to provide hover help for the part and all of its children.

The hoverHelpRemoved event indicates that hover help has been removed from the part or one of its children. You can use this event to signal when to remove hover help information in an information area.

This event is only signaled if the part has hoverHelpEnabled set to true.

This event passes a parameter, whose class is AbtEwIconHoverHelpCallbackData. The parameter has the following attributes for specifying settings for the hover help:

Specifies the hover area that contains the item under the mouse pointer

Specifies whether or not the hover help is shown

Specifies the item under the mouse pointer

Specifies the hover help string to display, if any. If the item under the pointer is a graphic push button, the default hover help string is the item's labelString attribute. Otherwise, the default value is nil. A value of nil causes no hover help to be displayed.

Specifies the location of the mouse pointer relative to the screen.

The hoverHelpRequested event indicates that hover help is about to be displayed over the part or one of its children. You can use this event to signal when to display hover help information in an information area.

This event is only signaled if the part has hoverHelpEnabled set to true.

When the event is signaled, the UI process may be blocked. Therefore, do not send any messages that get processed by the UI process, such as Transcript show.

This event passes a parameter, whose class is AbtEwIconHoverHelpCallbackData. The parameter has the following attributes for specifying settings for the hover help:

Specifies the hover area that contains the item under the mouse pointer

Specifies whether or not the hover help is shown

Specifies the item under the mouse pointer

Specifies the hover help string to display, if any. If the item under the pointer is a graphic push button, the default hover help string is the item's labelString attribute. Otherwise, the default value is nil. A value of nil causes no hover help to be displayed.

Specifies the location of the mouse pointer relative to the screen.

A labelFontName event indicates a change in the font used for the labels of the part.

A labelString event signals a change in the string in the label of the part.

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 marginHeight event sends a signal to the part that the amount of vertical space between the part and its children has changed.

A marginWidth event indicates a change in the amount of horizontal space between the part and its children that are not attached.

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.

The itemPopUpMenuRequested event signals that the pop-up menu for an item in the part has been requested.

If the itemMenu attribute is connected to a Menu part, that menu part is displayed unless you change the itemMenu attribute as a result of this event. You can change the itemMenu attribute to include your own menu or leave it unchanged to use the original setting.

A resizePolicy event signals a change in how the part is to be sized as children are added, removed, and otherwise manipulated in the part.

A rubberPositioning event indicates that a change in whether child parts have their positions converted to proportional attachments has occurred. If rubberPositioning is set to true, all children parts with no attachments on their top, bottom, left, or right, have their initial top and left positions converted to proportional attachments. If rubberPositioning is set to false, then the initial top and left positions are attached to the parent.

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

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 verticalSpacing event indicates the amount of vertical space between the part and it's children has changed.

An event of wallpaperStyle indicates a change in how the wallpaper images are displayed. Possible values are: