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Allegro CL version 9.0
This page is new in 9.0.


Arguments: outline

Returns the value of the highlight-ancestors property of an outline control. The value may be specified at creation time by passing the highlight-ancestors initarg to make-instance, or any time later by calling (setf highlight-ancestors).

This is a boolean value indicating whether the outline widget will draw the background of each ancestor outline-item of the currently selected item in a different color. That can help the user to more easily see which items the selected item is indented beneath. When true, the background of each ancestor item will be drawn using the ancestor-background-color.

The default value is nil, for backward compatibility reasons, though it may generally be preferable to enable this behavior.

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Documentation for Allegro CL version 9.0. This page is new in the 9.0 release.
Created 2010.1.21.

Allegro CL version 9.0
This page is new in 9.0.