This Gambas 2 project (soon to be a Gambas component) provides potentiometers that operate on floating-point values with a very realistic and customizable look and feel. Full HTML documentation in English is included.
PureExtreme is a easy to handle framework for purebasic (4.2x). It is designed for developing professional software. Each functions of the framework are optimized for speed and avoiding of memory overhead to the best of available knowledge.