Mark, have you been able to download the last link (the sources)? I was hoping to take a look at it. Seems to be using Qt and this is something I am learning these days.
--- stefan boeykens --- bim-expert-architect-engineer-musician --- Archicad28/Revit2024/Rhino8/Solibri/Zoom MBP2023:14"M2MAX/Sequoia+Win11 Archicad-user since 1998 my Archicad Book