val new_canvas : unit -> canvas Gobject.objval new_canvas_aa : unit -> canvas Gobject.objval root : [> canvas ] Gobject.obj -> group Gobject.objval set_scroll_region :
[> canvas ] Gobject.obj ->
x1:float ->
y1:float ->
x2:float ->
y2:float ->
unitval get_scroll_region : [> canvas ] Gobject.obj -> float arrayval set_center_scroll_region : [> canvas ] Gobject.obj -> bool -> unitval get_center_scroll_region : [> canvas ] Gobject.obj -> boolval set_pixels_per_unit : [> canvas ] Gobject.obj -> float -> unitval scroll_to : [> canvas ] Gobject.obj -> x:int -> y:int -> unitval get_scroll_offsets : [> canvas ] Gobject.obj -> int * intval update_now : [> canvas ] Gobject.obj -> unitval get_item_at :
[> canvas ] Gobject.obj ->
x:float ->
y:float ->
item Gobject.objval w2c_affine : [> canvas ] Gobject.obj -> float arrayval w2c : [> canvas ] Gobject.obj -> wx:float -> wy:float -> int * intval w2c_d : [> canvas ] Gobject.obj -> wx:float -> wy:float -> float * floatval c2w : [> canvas ] Gobject.obj -> cx:int -> cy:int -> float * floatval window_to_world :
[> canvas ] Gobject.obj ->
winx:float ->
winy:float ->
float * floatval world_to_window :
[> canvas ] Gobject.obj ->
wox:float ->
woy:float ->
float * float