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Allegro CL version 8.1
New since 8.1 release.


Arguments: chart-legend

This functionality was added in an update released in the Fall of 2008. You must have that update to use this functionality. See sys:update-allegro for information on getting updates.

Returns the value of the click-to-toggle-inclusion property of a chart-legend. The value may be set at creation time by passing a click-to-toggle-inclusion initarg to make-instance, or any time later by calling (setf click-to-toggle-inclusion).

If true, then the end user can interactively toggle whether particular chart objects are currently included in the chart-widget or plot-widget by clicking on the labels for the objects in the legend. An object's label will be grayed in the legend when it is excluded. The default value is nil because users typically will not expect this behavior.

See the description of the :exclude key on the page for chart-objects.

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Documentation for Allegro CL version 8.1. This page is new in the 8.1 release.
Created 2007.4.30.

Allegro CL version 8.1
New since 8.1 release.