Is there a formula to detect if a connection point is attached to a connector?

[The Walrus]

Let's say I have a shape with connection points on it.  I would like to be able to write a formula in the shape's shapesheet to detect if a connection point is actually attached to a connector.  Is this possible?  How would I go about this, and in which block of the connection points section?

[Yacine]

Probably only via macro. Check Wapperdude's posts about connections.