gdk:window-move-resize (window x y width height)

window -- a gdk:window object
x -- an integer for the new x position relative to window's parent
y -- an integer for the new y position relative to window's parent
width -- an integer for the new width
height -- an integer for the new height

Equivalent to calling the gdk:window-move and gdk:window-resize functions, except that both operations are performed at once, avoiding strange visual effects. That is, the user may be able to see the window first move, then resize, if you do not use the gdk:window-move-resize function.