Editing Focus (computing) (section)

===Focus follows pointer===
Another common policy on [[Unix]] systems using [[X Window System]] (X11) is the "focus follows mouse" policy (or FFM), where the focus automatically follows the current placement of the pointer. The focused window is not necessarily raised; parts of it may remain below other windows. Window managers with this policy usually offer "autoraise," which raises the window when it is focused, typically after a configurable short delay. A possible consequence of a '''followfocus''' policy is that no window has focus when the pointer is moved over the background with no window underneath; otherwise the focus simply remains in the last window.