COL_VAREXIST
COL_GETOFFSETFROMVARNO
COL_GETALLCOLUMNS
COL_GETALLCOLUMNS
COL_GETCOLUMN
COL_GETCOLUMN
COL_GETELEM
GSV_GETOFFSETFROMVARNAME
GSV_VAREXIST
GSV_GETFIELD
GSV_GETFIELD
GSV_GETFIELD3D
GSV_GETFIELD3D
VNL_VARTYPEFROMVARNAME
VNL_VARTYPEFROMVARNUM