IDvdInfo::GetCurrentAudio method (strmif.h)

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

Note  The IDvdInfo interface is deprecated. Use IDvdInfo2 instead.

 

Retrieves the number of available audio streams and the number of the currently selected audio stream.

Syntax

HRESULT GetCurrentAudio(
  [out] ULONG *pulStreamsAvailable,
  [out] ULONG *pulCurrentStream
);

Parameters

[out] pulStreamsAvailable

Pointer to the retrieved number of available audio streams

[out] pulCurrentStream

Pointer to the current stream number.

Return value

Returns an HRESULT value.

Return code	Description
E_UNEXPECTED	DVD is not initialized or domain is not DVD_DOMAIN_Title.
S_OK	Success.
VFW_E_DVD_INVALIDDOMAIN	Requested action is not supported on this domain (DVD_DOMAIN).
VFW_E_DVD_OPERATION_INHIBITED	Requested action cannot occur at this point in the movie due to the authoring of the current DVD-Video disc.

Remarks

This method returns an error unless the domain is DVD_DOMAIN_Title. For more information, see DVD_DOMAIN.

Requirements

Requirement	Value
Target Platform	Windows
Header	strmif.h (include Dshow.h)

See also

Error and Success Codes

IDvdInfo Interface