MFCreateTempFile

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
Type: MF_FILE_ACCESSMODE 

The requested access mode, specified as a member of the MF_FILE_ACCESSMODE enumeration.

OpenMode
Type: MF_FILE_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
Type: MF_FILE_FLAGS 

Bitwise OR of values from the MF_FILE_FLAGS enumeration.

ppIByteStream
Type: IMFByteStream **

[out] Receives a pointer to the IMFByteStream interface of the byte stream. The caller must release the interface.

Return value

Type: HRESULT 

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Refer to Media Foundation return codes.

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 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.

Requirements

Header: Declared in mfapi.h.

Library: Use mfplat.lib.