source files: xgtm.[ch], term/*.trm, gtplot.h
(GT-SET-WINDOW (list xmin xmax ymin ymax)) (SEND <gtm:terminal> :SET-WINDOW (list xmin xmax ymin ymax))
Set the location of the current window on the display screen. This means nothing if you're not on a window system, and may have no effect even if you are, depending on the window manager in use. Returns NIL iff program control of window size/position is disallowed.