Hi,
Thank you for the star, although that was not the puprose.
The reason i posted that answer was: I saw this similar post as your other previous (with keychars) and i supposed that you read it, and camw back posting a new question. I guess i was wrong (sorry for that).
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What do you mean by "represent" ? The enter has no optical representation. Do you want to know when the user pressed the ENTER ?