This shows how one can use the Slint C++ platform API to integrate into any Windows application - main.cpp is basically a shell of an application written using the native WIN32 api. - appview.h is an interface that is used by the application to show a Slint Window. the implementation of this interface could even be in a plugin. - appview.cpp is the implementation of this interface and instantiate the UI made with Slint - windowadapter_win.h contains the glue code used to implement a Slint platform using native WIN32 API