order of the canvas graphics in the representation. The MoveToFront function moves the specified graphic to the front. The MoveToBack function moves the specified graphic to the back. The MoveForward function moves the specified graphic one position closer to the front. If it is already at the front, this function does nothing. The MoveBackward function moves the specified graphic one position closer to the back. If it is already at the back, this function does nothing.
Canvas graphics can also be moved to positions relative to other graphics in the representation by orphaning graphics and then readopting them after or before other graphics.