    class
    	WEL_SB_CONSTANTS

    General
    	cluster: wel
    	description: "ScrollBar (SB) messages."

    Ancestors
    	ANY

    Queries
    	Sb_both: INTEGER_32
    	Sb_bottom: INTEGER_32
    	Sb_ctl: INTEGER_32
    	Sb_endscroll: INTEGER_32
    	Sb_horz: INTEGER_32
    	Sb_left: INTEGER_32
    	Sb_linedown: INTEGER_32
    	Sb_lineleft: INTEGER_32
    	Sb_lineright: INTEGER_32
    	Sb_lineup: INTEGER_32
    	Sb_pagedown: INTEGER_32
    	Sb_pageleft: INTEGER_32
    	Sb_pageright: INTEGER_32
    	Sb_pageup: INTEGER_32
    	Sb_right: INTEGER_32
    	Sb_thumbposition: INTEGER_32
    	Sb_thumbtrack: INTEGER_32
    	Sb_top: INTEGER_32
    	Sb_vert: INTEGER_32