Touch-screen-slider-delphi is a project mainly written in Pascal, based on the View license.
Simple, customized slider control to work well in touch-screen applications. Delphi.
Slider Control for Touch-Screen Applications
Copyright 2006, Kyle Cordes
Released under the Apache License 2.0
At Oasis Digital we are working on an application that will run on a touch-screen computer, and which will be used to (among other things) control an audio amplification system. There are some design considerations for touch-screen applications which are rather stark once you use the touch-screen for a few minutes. More details are available online:
http://kylecordes.com/2006/slider-control-for-touch-screen-applications
This code compiles with Delphi 2007, and should work with older and newer versions with little effort.