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 E with the ProXL Window that selected the event.
)unifies W with the ProXL Window whose configuration has changed.
)unifies X with the x coordinate, relative to the window's parent origin.
)unifies Y with the y coordinate, relative to the window's parent origin.
)unifies X and Y with the x and y coordinates respectively, relative to the window's parent origin.
)unifies W with the width in pixels of the window.
)unifies H with the height in pixels of the window.
)unifies W and H with the width and height in pixels, respectively, of the window.
)unifies W with the width of the window's border in pixels.
)unifies A with the sibling ProXL Window that the window is immediately on top of, or the constant
noneif the window is on the bottom of the stack with respect to its siblings.
)unifies B with the boolean value of the window's
override_redirectattribute, one of: