Expand description
The purpose of this protocol is to provide protocol object handles for toplevels, possibly originating from another client.
This protocol is intentionally minimalistic and expects additional functionality (e.g. creating a screencopy source from a toplevel handle, getting information about the state of the toplevel) to be implemented in extension protocols.
The compositor may choose to restrict this protocol to a special client launched by the compositor itself or expose it to all clients, this is compositor policy.