Notification that this seat's pointer is focused on a certain
surface.
When a seat's focus enters a surface, the pointer image
is undefined and a client should respond to this event by setting
an appropriate pointer image with the set_cursor request.
enter event
Notification that this seat's pointer is focused on a certain surface.
When a seat's focus enters a surface, the pointer image is undefined and a client should respond to this event by setting an appropriate pointer image with the set_cursor request.