(move-window-viewport-position x y
#&optional (win (get-window)))
Move WIN to viewport position X, Y.
If X or Y is #f, then do not move along that axis (use existing
value for that coordinate).
See move-window if you wish to move a window to a virtual position.
Module: (app scwm base)
Defined in scheme/base.scm
at line 350 (CVS log)