The multimedia file I/O services provide buffered and unbuffered file I/O, and support for standard Resource Interchange File Format (RIFF) files. The services are extensible with custom I/O procedures that can be shared among applications.
The file I/O services are divided into the following categories:
Performing Basic File I/O
Performing Buffered File I/O
Working with RIFF Files
Using Custom I/O Procedures