It's not possible to get the Application object of the launched app.

From the AutopilotTestCase, we have launch_test_application that returns a proxy object for the application. However, with this proxy object we can't tell if the application is active, or get the window of that application.

On the ProcessManager we have ways to get the running application, but only by name. And we might have many applications with the same name of the one we have just launched. The only way I've found to get the right one is to do on the test case:

self.process_manager.get_running_applications()[0]

It would be better if we can get the ProcessManager.Application passing the process id as a parameter. It would be even better if the object that returns launch_test_application has the methods like is_active and user_visible that come from ProcessManager.Application.