The fields that can be unified in
)unifies T with
)unifies S with the serial number of the last request processed by the server.
)unifies B, a boolean value, with one of
)unifies D with the ProXL Display the event was read from.
)unifies W with the ProXL Window whose size is being changed.
)unifies W with the requested width in pixels of the window.
)unifies H with the requested height in pixels of the window.
)unifies W and H with the requested width and height in pixels, respectively, of the window.