xcb-proto: xcb-proto xcb-proto: xcb-proto: xcb-proto is part of X11. xcb-proto: xcb-proto: For more information about the X.Org Foundation (the providers of the xcb-proto: X.Org implementation of the X Window System), see their website: xcb-proto: xcb-proto: http://www.x.org xcb-proto: xcb-proto: xcb-proto: