I created a new custom control for FiveWin/Harbour called TKnob.

It is a modern rotary knob control designed mainly for audio, MIDI and synthesizer style applications.
Main features:
LED or LINE indicator
Bipolar and Unipolar modes
External illuminated ring with glow effect
Optional ticks
Mouse drag and mouse wheel support
CTRL for smooth wheel movement
Double click reset to default value
Enable/disable state with visual feedback
Internal value display
Separate fonts for label and internal value
Themed/transparent background support
Since from 1991/1992 ( fw for clipper Rel. 14.4 - Momos)
I use : FiveWin for Harbour March-April 2024 - Harbour 3.2.0dev (harbour_bcc770_32_20240309) - Bcc7.70 - xMate ver. 1.15.3 - PellesC - mail: silvio[dot]falconi[at]gmail[dot]com
I use : FiveWin for Harbour March-April 2024 - Harbour 3.2.0dev (harbour_bcc770_32_20240309) - Bcc7.70 - xMate ver. 1.15.3 - PellesC - mail: silvio[dot]falconi[at]gmail[dot]com