IMFStreamDescriptor::GetStreamIdentifier Method
Retrieves an identifier for the stream.
Syntax
HRESULT GetStreamIdentifier(
[out] DWORD *pdwStreamIdentifier
);
Parameter
- pdwStreamIdentifier [out]
Receives the stream identifier.
Rückgabewert
Ist Methode erfolgreich, wird "S_OK" zurückgegeben. Andernfalls wird ein HRESULT-Fehlercode zurückgegeben.
Hinweise
The stream identifier uniquely identifies a stream within a presentation. It does not change throughout the lifetime of the stream. For example, if the presentation changes while the source is running, the index number of the stream may change, but the stream identifier does not.
In general, stream identifiers do not have a specific meaning, other than to identify the stream. Some media sources may assign stream identifiers based on meaningful values, such as packet identifiers, but this depends on the implementation.
This interface is available on the following platforms if the Windows Media Format 11 SDK redistributable components are installed:
- Windows XP mit Service Pack 2 (SP2) und höher.
- Windows XP Media Center Edition 2005 with KB900325 (Windows XP Media Center Edition 2005) and KB925766 (Oktober 2006 Updaterollup für Windows XP Media Center Edition) installed.
Anforderungen
Mindestens unterstützter Client |
Windows Vista |
Mindestens unterstützter Server |
Windows Server 2008 |
Header |
Mfidl.h |
Bibliothek |
Mfuuid.lib |