gtk:window-title (object)

object -- a gtk:window widget
title -- a string for the title of the window

The accessor for the title slot gets or sets the title of the window. The title of a window will be displayed in the title bar. On the X11 Window System, the title bar is rendered by the window manager, so exactly how the title appears to users may vary according to the exact configuration. The title should help a user distinguish this window from other windows they may have open. A good title might include the application name and current document filename.