MFCreateTempFile Function
Creates a byte stream that is backed by a temporary local file.
Syntax
HRESULT MFCreateTempFile(
MF_FILE_ACCESSMODE AccessMode,
MF_FILE_OPENMODE OpenMode,
MF_FILE_FLAGS fFlags,
IMFByteStream **ppIByteStream
);
Parameter
AccessMode
The requested access mode, specified as a member of the MF_FILE_ACCESSMODE enumeration.OpenMode
The behavior of the function if the file already exists or does not exist, specified as a member of the MF_FILE_OPENMODE enumeration.fFlags
Bitwise OR of values from the MF_FILE_FLAGS enumeration.ppIByteStream
Receives a pointer to the IMFByteStream interface of the byte stream. The caller must release the interface.
Rückgabewert
Ist Funktion erfolgreich, wird "S_OK" zurückgegeben. Andernfalls wird ein HRESULT-Fehlercode zurückgegeben.
Hinweise
This function creates a file in the system temporary folder, and then returns a byte stream object for that file. The full path name of the file is storted in the MF_BYTESTREAM_ORIGIN_NAME attribute. The file is created with the FILE_FLAG_DELETE_ON_CLOSE flag, and is deleted after the byte stream is released.
This function 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 |
Mfapi.h |
Bibliothek |
Mfplat.lib |
DLL |
Mfplat.dll |