`object
val obj : GnomeCanvas.canvas Gtk.obj
method aa : bool
method adapt_zoom : unit -> unit
method add : GObj.widget -> unit
method all_children : GObj.widget list
method as_widget : Gtk.widget Gtk.obj
method bin_window : Gdk.window
method border_width : int
method c2w : cx:float -> cy:float -> float * float
method children : GObj.widget list
method coerce : GObj.widget
method connect : GContainer.container_signals
method destroy : unit -> unit
method drag : GObj.drag_ops
method event : GObj.event_ops
method focus : GContainer.focus
method freeze : unit -> unit
method get_center_scroll_region : bool
method get_item_at : x:float -> y:float -> GnoCanvas.base_item
method get_oid : int
method get_scroll_offsets : int * int
method get_scroll_region : float array
method hadjustment : GData.adjustment
method height : int
method misc : GObj.misc_ops
method move : GObj.widget -> x:int -> y:int -> unit
method put : GObj.widget -> x:int -> y:int -> unit
method remove : GObj.widget -> unit
method resize_mode : Gtk.Tags.resize_mode
method root : GnoCanvas.group
method scroll_to : x:int -> y:int -> unit
method set_border_width : int -> unit
method set_center_scroll_region : bool -> unit
method set_hadjustment : GData.adjustment -> unit
method set_height : int -> unit
method set_pixels_per_unit : float -> unit
method set_resize_mode : Gtk.Tags.resize_mode -> unit
method set_scroll_region :
x1:float -> y1:float -> x2:float -> y2:float -> unit
method set_vadjustment : GData.adjustment -> unit
method set_width : int -> unit
method thaw : unit -> unit
method update_now : unit -> unit
method vadjustment : GData.adjustment
method w2c : wx:float -> wy:float -> int * int
method w2c_affine : float array
method w2c_d : wx:float -> wy:float -> float * float
method width : int
method window_to_world : winx:float -> winy:float -> float * float
method world_to_window : wox:float -> woy:float -> float * float
method zoom_factor : float
end`