|Microsoft DirectX 9.0|
The IsAudioStreamEnabled method retrieves a value indicating whether the specified audio stream is enabled in the current title.
[ bEnabled = ] MSWebDVD.IsAudioStreamEnabled(iStream)
Specifies the audio stream as an Integer value from 0 through 7.
Returns a Boolean value indicating whether the specified audio stream is available for the current title. True means it is available.
Although a disc can contain up to eight independent audio streams, each stream is not necessarily available for each title. For example, a main movie title might have three audio streams for English, Spanish, and Japanese, but the "Coming Attractions" title might have only one audio stream in English. Always verify that a stream is available for a title before setting the CurrentAudioStream property.