Called when the STT engine informs the engine service user about the whole supported language list. This callback function is implemented by the engine service user. Therefore, the engine developer does NOT have to implement this callback function.
public delegate bool SupportedLanguages(string language, IntPtr userData);
The language is specified as an ISO 3166 alpha-2 two letter country-code followed by an ISO 639-1 for the two-letter language code. For example, "ko_KR" for Korean, "en_US" for American English.
The user data.
true to continue with the next iteration of the loop, false to break out of the loop.