How to convert a console application into a window application?

Question

C++ / C#

link to the project
in it everything works and starts, but the application is a console one.
What is the correct way to import source files into a new MFC window application project?
when I just copy files, I get a bunch of linking errors 2019 "reference to unresolved symbol" when building. Is it
not enough to just copy .h/.cpp to a folder? do you need something else?

Answer 1

Add to project. Something like Add -> Existing item...
Otherwise, they are not passed to the compiler -> object files are not obtained -> there is nothing to link.