Returns the graph object at a given position in a graph.
capi
graph-pane-object-at-position graph-pane x y => object
| graph-pane⇩ | 
A graph-pane. | 
| 
Non-negative numbers. | 
| object | 
A graph-object, or  nil. | 
The function graph-pane-object-at-position returns the graph-object (either a graph-edge or a graph-node) at the coordinates x, y in the graph graph-pane.
If there is no graph-object at position x,y then graph-pane-object-at-position returns nil.
CAPI User Guide and Reference Manual (Unix version) - 01 Dec 2021 19:32:42