Starting a QQmlApplicationEngine from a dll

[yeehaw]

Hello,

I am using QT (Gui library, QML, etc...) in a dll plugin that is to be used in another software.
My entry point is a user-defined dllMain function.
I start by creating a QApplication when the DLL_PROCESS_ATTACH happens, but creating the QQmlApplicationEngine just after that (like in a static program with a normal main() ), the program freezes inside the QQmlThread waiting function.

Is there a sane way to load the engine and pop a window from a dll?
PS: I don't even call the exec() function of the Application and trying to follow what was discussed here: https://stackoverflow.com/questions/11054087/starting-qt-gui-from-dll-in-dllstart-function.

The code inside the dll attach in the dllMain looks like this:

  auto* app = new QApplication(argc, nullptr);
  Application::RegisterTypes();
  auto* engine = new QQmlApplicationEngine; // freezes here in the QQmlThread
  app->processEvents();

Thanks