Calculate an intersection point between two lines

[Richard_AshJNQQ8]

Hi, i'm trying to find a way of calculatng an intersection point between two lines with .NET - similar to the autolisp inters function: 

(inters pt1 pt2 pt3 pt4 [onseg])

 Would be very grateful for any help 🙂

[cuongtk2]

https://forums.autodesk.com/t5/net/problem-using-intersectwith/td-p/6970090