Wpf add button to window title bar

1. Which button is present on title bar?
2. Which are the three buttons at the right end of the title bar?

Which button is present on title bar?

The title bar also makes it possible for the user to move the window using a mouse or other pointing device. Title bars contain at least three small buttons that minimize, maximize or restore, and close the window associated with the title bar.

Which are the three buttons at the right end of the title bar?

In addition, the Title Bar has the three buttons familiar to Windows ® users: Minimize, Maximize, and Close.