Wl_compositor.v3Handler for a proxy with version >= 3.
constraint 'a = [< `V3 | `V4 | `V5 | `V6 ]method private virtual on_create_surface : [> `V3 | `V4 | `V5 | `V6 ] t ->
([ `Wl_surface ], 'b, [ `Server ]) Wayland__.Proxy.t ->
unitCreate new surface.
Ask the compositor to create a new surface.
method private virtual on_create_region : [> `V3 | `V4 | `V5 | `V6 ] t ->
([ `Wl_region ], [ `V1 ], [ `Server ]) Wayland__.Proxy.t ->
unitCreate new region.
Ask the compositor to create a new region.