I have created an API for postprocessing outputs. Basically I want to create a table containing the Element ID's, corresponding stresses and then stress combination.I have modified the code shown in Page 42-43 of this presentation
If you're using v11.3, there's a new "SendToDataTable" method on the Results object. There's no arguments, just call it. To work, the Results object needs to be populated and the data table needs to be visible and unlocked.
If you're using versions prior to v11.3, you'll need to manually extract each column to then send to the data table.