| Allegro CL version 7.0 Unrevised from 6.2 to 7.0. | |||||||||
The class of the trackbar control. This is a linear gauge displaying a pointer that indicates some value within a specified range, and allowing users to drag the pointer to other values within the range and thereby effect some arbitrary behavior.
An example use of a trackbar would be the volume slider on a stereo.
Tick marks may be displayed at some specified frequency along the trackbar. The trackbar value may also be adjusted using the arrow keys and/or the PAGE UP/PAGE DOWN keys when the trackbar has the keyboard focus, and the amount by which these keys adjust the value can be set. See tick-frequency, tick-position, and tick-side. (If the value of tick-side is :none, no tick marks are displayed.
See About how to get sample code for creating controls in cgide.htm, which explains how to use the IDE to create such code.
Copyright (c) 1998-2006, Franz Inc. Oakland, CA., USA. All rights reserved.
Documentation for Allegro CL version 7.0. This page was not revised from the 6.2 page.
Created 2004.8.21.
| Allegro CL version 7.0 Unrevised from 6.2 to 7.0. | |||||||||