gdk:toplevel-size-set-size (size width height)

size -- a gdk:toplevel-size instance
width -- an integer with the width
height -- an integer with the height

Sets the size the toplevel prefers to be resized to. The size should be within the bounds, see the gdk:toplevel-size-bounds function. The set size should be considered as a hint, and should not be assumed to be respected by the windowing system, or backend.