Function RouteFind(node2: integer): integer;
Locates the link and nodes on a route from node2 to node1, which has been defined in a previous call to either Route or IsoCost.
Returns the number of nodes on the route. The number of links is one less.
See also RouteGetLink and RouteGetNode.
Possible error codes: -10 -30 -35
ActiveX / VCL / CLX component: RWcalc