Cannot visually instantiate a UI control subclass

Status: Fixed
Fixed in: v26.5.4
Source discussion: https://forum.objo.dev/d/32-how-to-use-subclass-of-a-control
Last updated: 2026-05-17

Public summary

Whilst it is possible to subclass a UI control in a project, the visual designer does not expose a mechanism for adding that subclassed control to a window in the visual designer.