|Microsoft DirectX 9.0|
This topic applies to Windows XP Service Pack 1 only.
The AudioStreamsAvailable property retrieves the number of audio streams available in the current title.
VidWebDVD.AudioStreamsAvailable as Long
This property takes no parameters.
Returns an integer value from 1 through 8 representing the number of audio streams available in the current title.
If the property fails, Err.Number may be set to one of the following values.
|E_NO_IDVD2_PRESENT||Unspecified internal error.|
|E_NO_DVD_VOLUME||No DVD available.|
|E_REGION_CHANGE_FAIL||The DVD has the wrong region code for this machine.|
This property is read-only with no default value. The primary use of multiple audio streams is to provide movie soundtracks in more than one language. Typically, not every title on a disc has all audio streams enabled. For example, the feature movie might have soundtracks in three different languages, but the trailers might have only an English soundtrack. Before a user can select a stream, the application must determine which streams are available within the current title. Note that particular streams are identified by an index from 0 through 7.
Discs generally present a menu showing the available soundtracks, which allows the user to select the audio stream to enable.
' Returning the property lStreamsAvail = VidWebDVD.AudioStreamsAvailable