HRESULT TTSModeSet(GUID gVoice);
Sets the text-to-speech mode for a voice-text site.
· Returns NOERROR if successful, or one of these error values:
VTXTERR_INVALIDMODE
VTXTERR_INVALIDPARAM
VTXTERR_OUTOFMEM
gVoice
[in] GUID of the text-to-speech mode to set for the site. If the mode does not exist, an error is returned and the mode is not changed.
The text-to-speech mode for a site is saved between uses of the site, even if the user shuts down the computer in the meantime.
If a voice-navigation application is installed on the user's computer, an application may not need to set the mode.