selection and deletion of subpath

Question

hi
this is my first post in this group, i am having a issue regarding gdi + and vb.net i am able to draw  multiple polygon in picturebox, now i would like to select any polygon one at a time by mouse click and on rightclick it will display a context sensitive popupmenu will appear which has several operations and one of them is delete.
so my question is how to select a single polygon which is present inside a graphics path as seperate figure and has marker is attached to it as well as delete that selected polygon.
any help will be greatly appriciated