MFCreateTempFile function (mfapi.h)
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
);
Parameters
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.
Return value
If this function succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
Remarks
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 stored 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 with Service Pack 2 (SP2) and later.
- Windows XP Media Center Edition 2005 with KB900325 (Windows XP Media Center Edition 2005) and KB925766 (October 2006 Update Rollup for Windows XP Media Center Edition) installed.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista [desktop apps only] |
| Minimum supported server | Windows Server 2008 [desktop apps only] |
| Target Platform | Windows |
| Header | mfapi.h |
| Library | Mfplat.lib |
| DLL | Mfplat.dll |