Using QML_VALUE_TYPE

Asperamanca

Does anyone know a working example of defining a QML value type in C++ and actually using it in QML?
The Qt docs only show the C++ part, and none of the Qt Examples (at least in 6.5.2) covers this topic.

Long story short, I have something like this:

namespace MyNamespace
{
class TestQmlValueType
{
  Q_GADGET
  QML_VALUE_TYPE(ct_TestQmlValueType)
public:
  int m_Something;
};
} // namespace MyNamespace

This the header is added to a QML module via qt_add_qml_module (SOURCES parameter). The registration for that module is generated as expected (strangely, no mention of my value type, but maybe this is as it should be)

In a different QML module, I want to use the value type, import the QML module and...can't find it.

import MyPrefix.MyModule

Rectangle
{
  id: testRect
  proprerty ct_TestQmlValueType myPropOfCustomValueType // Unknown type
}