Dear all, I integrated Korean TTS engine to NVDA, and now it can read korean character well. But in Hangul software, when I use the arrow keys NVDA does not read any word even if that is english word. I tried to debug and It's seem when I use the arrow keys in Hangul, NVDA did not return the input text for the speak function. (I mean the speak function in synthDriverHandler.py ), I also try others TTS engine like eSpeak, SAPI but the result is same. so I think the communication between Hangul and NVDA have some errors. Could any one give me some advices or clues? I would like to know the method which NVDA use to get the text from other program/software ? Thank you very much, Best regards, Luan Dinh.