How to get the name of another C# .net application?

Question

.NET

I have one application, let's call it Main. There is a neighboring application, let's call it Pub. Both in c# and .net. How can Main get the title of the Pub window?

Answer 1

1. Find a window by its class.
2. Find a window by process.
3. Pass the name of the window from the second application to the first in any convenient way (file, pipe, socket, etc.)