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Allegro CL version 8.1
Unrevised from 8.0 to 8.1.
8.0 version


Arguments: trackbar

Returns the value of the tick-side property of the argument. The possible values are :left and :top (which, as we explain below, are equivalent), :right and :bottom (also equivalent), :both, and :none.

A trackbar can be oriented horizontally or vertically. Tick marks provide a scale for the trackbar. Therefore :left and :right are appropriate for a vertical orientation while :top and :bottom are appropriate for a horizontal orientation. However, to avoid errors when the orientation is changed, if :left is specified for a horizontal trackbar, it is interpreted to mean :top, and :right is interpreted to mean :bottom. Similarly, if :top or :bottom is specified for a vertical trackbar, it is interpreted as :left or :right respectively.

The trackbar pointer points toward the side with the ticks. If there are ticks on both sides, the pointer does not have a point (it is squared on both sides. If there are no ticks, the pointer points right or down.

The tick-frequency property determines the spacing of tick marks. See also tick-position.

The tick-side property may not be changed on an existing control, and must instead be specified with the inspector when designing a control (using a form) or with the :tick-side initarg of make-instance. (It can be changed using the inspector when designing a form but not for a running control, either in the IDE or in an application.)

tick-side is a property of the trackbar class.

GTK Note

This property is not supported by the simple GTK trackbar widget, where it will have no effect.

Copyright (c) 1998-2009, Franz Inc. Oakland, CA., USA. All rights reserved.
Documentation for Allegro CL version 8.1. This page was not revised from the 8.0 page.
Created 2009.7.29.

Allegro CL version 8.1
Unrevised from 8.0 to 8.1.
8.0 version