VISIO::CANVAS_POPUP_CONNECT
(int canvas, int menu)
Description: Connects a
menulist to a canvas. The menulist appears when the right mouse
button is pressed. The menulist first have to be created with the
command visio::menu_list.
(This command is needed since the ID returned when creating a canvas
is an internal Visio ID, and not the GTK id.)
Example: VISIO::CANVAS_POPUP_CONNECT
(canvas, 4)