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Allegro CL version 8.2
This page is new in 8.2.


Arguments: split-bar

Returns the now-dragging property of a split-bar widget.

This property indicates whether the split-bar is currently being dragged interactively by the end user, returning true if that is so and nil otherwise. The value should not be set by an application, but the value could be read in an on-change function, for example, to determine whether the new value is an intermediate value during a drag, rather than a final value at that is being set programmatically or at the end of a drag.

It could also be called in an on-redisplay function to draw the split-bar differently while it is being dragged.

See also now-under-mouse.

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This page is new in the 8.2 release.
Created 2016.6.21.

Allegro CL version 8.2
This page is new in 8.2.