Sharing with Python since this question really doesn't involve the ArcGIS API for Python.
What information, specifically, do you want to retrieve? All of the fields or just a subset? If the latter, which fields make up the subset?
Seeing you want to retrieve information using Python, what do you want to do with that information? How you want to process or handle the information will change people's suggestions of how to get the information.
I want to retrieve all field-value pairs of clicked objects and send this information to another program, doesn't matters which program at this point. If this cannot be done with Python which language I can use instead ? I choose Python because I am familiar with it.
Yes I mean selected object. SearchCursor is a last step to retrieve object info. But I cannot go any farther, I'm stuck at the beginning. I think that I clearly described the problem at the very beginning.