Abstract: A method for individualized control of means for closing off at least one window, by: determining coordinates of a dazzle cone associated with a window and with a dazzle-sensitive zone, the dazzle cone defined by a vertex positioned at the dazzle-sensitive zone and a directrix curve superimposed on the perimeter of the window; determining the orientation of direct rays of sunlight, and defined by a solar azimuth and a solar elevation; periodically checking whether the orientation falls within a predetermined dazzle cone; the directions of the rays of sunlight being parallel to one of the directions within the dazzle cone and passing through the vertex of the cone; and acting on closing-off means associated with the window for which orientation of rays of sunlight falls within a dazzle cone.