Multi-Pointer X

Multi-pointer X (MPX) is a part of X input extension and previously a modification to the existing X.Org implementation of the X Window System.

MPX provides multiple independent pointers at the windowing system level.

[citation needed] For instance, multiple users can simultaneously operate different applications at the same time.

Combined with the proof of concept window manager MPWM, MPX provides extended features such as simultaneous movement or resizing of application windows, per pointer annotation over top of an application and restricted input support (floor control).

MPX was created by Peter Hutterer in 2005–2008, as part of his PhD in the Wearable Computer Lab under the supervision of Prof. Bruce H. Thomas at the University of South Australia.