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 applicationDefinedTabbingRequested event signals that the cell tab information has been requested. This is valid only if the selectionPolicy attribute is set to XmCELLSINGLESELECT.

This event passes a parameter whose class is EwCellTabCallbackData. This callback data can be used to specify application-defined tabbing behavior. EwCellTabCallbackData has the following attributes for specifying cell tab behavior:

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

An autoTab event signals the part that tabbing should occur automatically when the maximum text length (as set by the textLimit attribute) is reached.

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.

A cellTabbingPolicy event indicates that a change in how tabbing within the cells should behave has taken place.

The closedWidget event signals that the part has been closed.

A columns event signals that a change in the width of the part, measured in average character spaces (when either the left or right edge is not attached), has taken place.

A columnSelectionIndex event indicates a change in the index of the selected column.

The columnSelectionIsValid event indicates that the column selection is valid. The column selection is not valid if there are no selected columns, or if a selected column is set but is not included in the collection of columns.

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

The defaultActionRequested event signals that the user pressed the line feed key (typically the Enter key) while the part had the focus or the user double-clicked mouse button 1 on a part.

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 drawBackgroundRequested event signals that the drawBackgroundCallback data was requested.

An editable event signals that the part's contents can be edited at run time.

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.

The gettingFocus event signals that the part is getting focus, or becoming active. If the part has focus, keyboard input is enabled.

The gettingFocus event acts differently depending on which part is receiving the event. For example, if you connect the gettingFocus event to a Window part, the window will come to the foreground and be the active window. Also, if you connect the gettingFocus event to a Text part in a window, the cursor is moved to this field.

An editable event signals that the part's contents can be edited at run time.

A headingBackgroundColor event signals the part that the background color for the target part's heading has changed.

A headingFontName event indicates that there has been a change in font for the heading of a target part.

A headingSeparatorThickness event indicates a change in the appearance of the line between the column headings and the rows.

An event of headingVisualStyle indicates there has been a change in how the cells of the part are displayed. Possible values include:

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 hierarchyPolicy event signals the part that a change in how to display and manage the hierarchy tree has occurred.

An itemChildrenAttributes event indicates a change in the attributes that the items have, that will return their children.

The itemChildrenRequested event signals that the children of the item have been requested. The children field of the callData argument must be filled in with a collection of the children objects.

The itemCollapsed event signals that the children of the part have been collapsed such that no children appear hierarchically below it.

The itemExpanded event signals that the children of the part have been expanded such that all of the children appear hierarchically below it.

An itemHasChildrenAttributes event signals a change in the attribute that the items have that will return whether or not they have children

An event of itemHeight signals the part that the height to use for each icon and label in the part has changed.

An itemMenu event indicates that the menu part to use an item's pop-up menu has changed. This menu is displayed when the mouse button 2 is clicked on an item in the part.

The itemPopUpMenuRequest 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.

An items event signals that the collection of items to display in the part has changed.

A lockedColumns event indicates a change in the number of columns from the left edge of the container part that remain fixed and cannot be scrolled horizontally.

The losingFocus event signals that the part is losing focus. If the part does not have focus, keyboard input is not accepted.

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.

The popUpMenuRequest event signals that the pop-up menu for the part has been requested.

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

A proportionalColumnResizing event signals that columns in the container part are automatically resized horizontally in order to maintain their originally defined proportions.

A refreshEntireListOnChange event signals the part that a change to one of the part's items has occurred and therefore the list is automatically updated.

A refreshItemOnAttributeChange event indicates a change in an attribute of an item, in the model, has signaled an update to the part.

A resizable event signals the part that the column of the container can be resized.

The resized event signals that the part has been sized.

An event of rowSeparators signals the part to place separators between the rows of the container.

The scrolled event signals that the part has been scrolled.

A scorllableDown event indicates that the container part can currently be scrolled downward.

A scrollableLeft event indicates that the container part can currently be scrolled left

A scrollableRight event indicates that the container part can currently be scrolled right.

A scrollableUp event indicates that the container part can currently be scrolled up

A scrollBarDisplayPolicy event indicates a change in the automatic placement of the scroll bars. Valid values are:

Scroll bars will be displayed only if the list items exceed the container work region either horizontally or vertically.

Scroll bars will be displayed regardless of the relationship between the size of the list items and the size of the container.

A selectableColumns event indicates that the columns in the container part can be selected.

The selectedItem event signals the part that the item that is currently selected has changed.

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

The selectedItemsChanged event signals that the items that are selected have changed.

The selectedIndicesChanged event signals that the indices of the items that are selected have changed.

The selectionIndex event signals the part that the index for the collection of items of the part has changed.

A selectedIndices event indicates a change in the indices of the items selected in the part.

An event of selectionIsValid signals the part that the current valid selection of the part has changed.

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

A separatorsToExtremes event indicates a change in where the column and the row separators extend.

A showColumnHeadings event indicates a change in the visibility of the column headings.

A showHorizontalScrollBar event indicates that he part's horizontal scroll bar is displayed so the user can scroll horizontally through the text.

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.

The visualInfoRequested event signals that the visual information for an item has been requested. This event passes the parameter itemVisualInfo, whose class is EwIconVisualInfoCallbackData. The itemVisualInfo parameter is used to specify the item's visual information, such as the icon and label to display. The itemVisualInfo parameter has the following attributes for specifying the item's visual information:

The item for which the visual information is being requested

The index of the item for which the visual information is being requested

Specifies whether or not in use emphasis is to be displayed.

The icon to display for the item

The label to display for the item.

A visibleStyle event indicates a change in how the cells are displayed. Possible values are:

Looks like a list box

Has each row etched.

Has each cell in an etched column individually etched.