How to get selected sketch segment ID and points

I have what I think should be a simple question. I have an open sketch
and a line selected. I want to:

1) Get the ID of the line so I can get back to it later. I've found
code to loop through all of the sketch segments and get their IDs but
that doesn't help me because I don't know which ones they are. I need
to get the ID of the selected line only.

2) Get the start and end points of the line in x and y coordinates. I
found GetStartPoint and GetEndPoint but can't figure out how to use
them.

To me this should be very simple and maybe it is, but I can't seem to
find anything explaining how to do it. Any help will be most
appreciated.

john smith

 

get our http://www.dynabits.com/sw/spliner.htm free, open-source add-in.
In the source you'll find an undocumented, unofficial but working trick to
get the ID of a sketch segment:
the second number of the SketchSegment::GetID result is the number that
follows the segment type.
This being said, I strongly advise to avoid using SelectByID, and use
SketchSegment::Select instead.
GetStartPoint and GetEndPoint return SketchPoint objects, which have X,Y,Z
properties

Philippe Guglielmetti - www.dynabits.com