How and with what to test GUI applications in the .Net environment (WinForms with DevExpress)?

Question

.NET

I am developing a workflow system, the stack is as follows: .Net 4.0, PostrgeSQL in conjunction with npgsql, forms in an application on DevExpress WinForms.
The essence of the problem is as follows.
The application uses a certain number of document cards (lists, cards, directories, technical forms), with a certain number of types of documents - as a result, we have a fairly large number of different forms.
Periodically, there is a need to test the operation of the entire application (there is no full-time tester, there are no tests in the application). Testing such a large application takes a lot of time (even if we take a minimum of operations on each form) and, moreover, it greatly knocks down the development mood after testing is completed.
The question is how and how desktop applications are tested in .Net, in particular the GUI frontend, so to speak, I understand working with the database, you can write tests, but I don’t understand how to get to the forms. Are there any tools of the framework itself using VisualStudio, or maybe third-party applications that can be used to test any graphical interfaces?
If there are people who know about this issue, it would not be difficult for you to suggest options with free software, in addition to paid ones (if I understand correctly, all such solutions will be paid, but suddenly you're lucky).

Answer 1

I liked HP QTP now it is called differently, but the essence is the same.
You can click the script on the interface, change it if necessary, add a module to net or vb script.
https://www.microfocus.com/en-us/products/unified-...