The Image Browser Sample (MMBROWSE) illustrates how to use the multimedia I/O subsystem (MMIO) to install I/O procedures for various image formats and then convert these image formats to any of the supported image formats.
This sample demonstrates the various ways to install an I/O procedure:
To install an I/O procedure, you must know its four-character code. For more information on how to use the functions included in this sample program, see Multimedia I/O File Services.