Did you read the AutoCAD Developer's Help for the ssget, entsel, entget functions ?
Thanks for your explanation, It is highly appreciated
In regard with what you have asked me about , I would tell you that there are so clear to me. But the problem is that when I want to use entget it won't give me the chance to select more entities to modify them within one time, as I have earlier mentioned in my first thread.
So that's why I turned to ssget to get as much as I want , Here is where the confusion has started.
And the Problem still pending so far.
Is you would help me out with it you can try my first codes and re-invoke the Lisp file to see it clearly.
Many Thanks
Tharwat