Calculating area of only selected features without writing to table

Discussion created by smfranklin on Sep 30, 2013
Latest reply on Oct 1, 2013 by smfranklin
Good afternoon,
I'm working on a custom button using the Python GUI and perhaps add-in manager in 10.1 to calculate the area of a selected polygon and then display the result as a popup message box.

I've got several of the pieces together, using an IF loop with GetCount() to verify a record has been selected before proceeding and easygui.msgbox to report the result; however I'm struggling to figure out how to calculate the area of the selection without writing to the attribute table. I don't want to have to create a new feature class or table - I want to allow a user to interactively select a polygon, calculate the geometry on the fly, or in memory, convert the number to acres, if necessary, and use that result as the variable to report in my pop-up.

Any ideas?