    class
    	WEL_SCROLL_BAR_CONSTANTS

    General
    	cluster: wel
    	description: "Constants relative to scroll bar"

    Ancestors
    	WEL_SBS_CONSTANTS
    	WEL_SB_CONSTANTS

    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
    	Sbs_bottomalign: INTEGER_32
    	Sbs_horz: INTEGER_32
    	Sbs_leftalign: INTEGER_32
    	Sbs_rightalign: INTEGER_32
    	Sbs_sizebox: INTEGER_32
    	Sbs_sizeboxbottomrightalign: INTEGER_32
    	Sbs_sizeboxtopleftalign: INTEGER_32
    	Sbs_topalign: INTEGER_32
    	Sbs_vert: INTEGER_32
    	Sif_all: INTEGER_32
    	Sif_disablenoscroll: INTEGER_32
    	Sif_page: INTEGER_32
    	Sif_pos: INTEGER_32
    	Sif_range: INTEGER_32
    	Sif_trackpos: INTEGER_32
    	valid_sif_constant (i: INTEGER_32): BOOLEAN
    	valid_sif_mask (i: INTEGER_32): BOOLEAN