Xdg_wm_base.Error
type t =
| Role : t
| Defunct_surfaces : t
| Not_the_topmost_popup : t
| Invalid_popup_parent : t
| Invalid_surface_state : t
| Invalid_positioner : t
| Unresponsive : t
val to_int32 : t -> int32
val of_int32 : int32 -> t