Syntax for an External Text Image Generator

I’m trying to write an external text image generator for Eggplant. I’ve gotten Eggplant to connect to a remote machine, and I have determined the XML schema (plist version 0.9) contaning the image properties that is sent from Eggplant to the remote machine. However, I haven’t figured out how to send the generated image back to Eggplant. Neither returning the raw data of the tiff image nor returning a HTML image request worked. Is there a specific XML or other type of schema used to send the image back to Eggplant?

Yes, you also need to return a size and a few other pieces of information, we will work on getting some information put together to allow you to complete your external TIG.