SUI_InitializeSR activates the speech recognition engine.
This command must be called once before any other speech recognition commands can be used.
The speech settings used will be those specified in the Speech Control Panel.
The mode parameter specifies whether or not to utilize certain settings in the Speech Control
Panel:
1: The PlainTalk feedback window is not shown and listening settings are ignored
2: The PlainTalk feedback window is not shown but listening settings are used
3: The PlainTalk feedback window is shown and listening settings are used
Generally, mode #3 should be used unless you write your own feedback system.
Error Codes
>0: speech engines failed to initialize
-1: speech engines already initialized
-2: demo mode has timed-out
-3: Classic Environment detected