IMediaStream::GetInformation (Compact 2013)
3/26/2014
This method retrieves the stream's purpose ID and media type.
Syntax
HRESULT GetInformation(
MSPID* pPurposeId,
STREAM_TYPE* pType
);
Parameters
pPurposeId
[out] Pointer to an MSPID value that will contain the stream's purpose ID.If this parameter is NULL on entry, the method will not retrieve the purpose ID.
pType
[out] Pointer to a STREAM_TYPE enumerated data type value that will contain the stream's media type.If this parameter is NULL on entry, the method will not retrieve the media type.
Return Value
Returns S_OK if successful or E_POINTER if one of the parameters is invalid.
Remarks
The value retrieved in the pPurposeId parameter will usually be one of the following:
- MSPID_PrimaryVideo, which identifies the primary video stream
- MSPID_PrimaryAudio, which identifies the primary audio stream
You can define other values if necessary.
Requirements
Header |
dshow.h |
Library |
Strmiids.lib |