If the MMIO_TRANSLATEDATA flag was in the ulTranslate field of the MMIOINFO structure when the file was opened, the data will be translated from its native encoding scheme to the encoding scheme of the standard presentation format for the media type. Data in the pchBuffer parameter is returned to the application in the standard presentation format.

With images, for example, the standard data presentation format is uncompressed OS/2 bit-map data. For audio, the standard presentation is PCM data. The data will conform to the definition found in the media header supplied by mmioGetHeader.