method attach : left:int ->
top:int ->
?width:int ->
?height:int ->
GObj.widget ->
unitmethod set_baseline_row : int -> unitmethod set_col_homogeneous : bool -> unitmethod set_col_spacings : int -> unitmethod set_row_homogeneous : bool -> unitmethod set_row_spacings : int -> unitmethod baseline_row : intmethod col_homogeneous : boolmethod col_spacings : intmethod row_homogeneous : boolmethod row_spacings : int