An image pickup apparatus which decreases the number of components to reduce man-hours for assembly. An example method disclosed herein includes determining a position of a covering of an architectural opening covering assembly. If at least one silent alarm pattern producing a tactile sensation in the user is attached to the event, the user is given abstract information on the operation of the device by using at least one silent alarm pattern implemented with the alarm device and sensed by the user. The internal surface of the variable sized aperture is in contact with the rim of the container, support bracket or upper support rod thereby securing the tool or universal support hanger in a predetermined position. The structures can be separated from the porous substrate to obtain a material having a desired structure, for example a tubular structure. The chromogenic composition has a relatively long shelf life and will produce a bright blue visible color when contacting blood, thereby being useful for detecting spilled blood and blood trails from wounded game.