Objective
I am trying to create a plugin to have some custom widgets in Qt Design Studio.
Context
I used to be familiar with Qt Creator, and made some plugins in previous projects. For a new project, I need to create a plugin for Qt Design Studio, to allow users to manipulate customs widgets.
Problem
My plugin is not visible or usable in Qt Design Studio.
Technical informations
I use the Qt example "World Time Clock Plugin"(https://doc.qt.io/qt-5/qtdesigner-worldtimeclockplugin-example.html). I compile from Qt Creator 9.0.2, based on Qt 6.4.2 (MSVC 2019, x86-64), with the config "Qt 6.5.1 MSVC2019 64bit". I try to add the plugin in Qt Design Studio 4.0.0, based on QT 6.4.0 (MSVC 2019, x86-64).
The compilation works. I add the plugin in Qt Design Studio with the Plugin Manager ("About plugins / Install plugin"). I have no error message, and the dll is successfully copied in the target directory. But I cannot find it, or the widget, anywhere.
I tried everything I can found, but nothing works :-/
