Sets the title of the Window.
The title of a window will be displayed in its title bar; on the X Window System, the title bar is rendered by the window manager , so exactly how the title appears to users may vary according to a user’s 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, for example.
| this |
a Window |
| title |
title of the window |