Header Files for Multimedia Device Drivers

Audio and video device drivers use the following header files to define functions, messages, data structures, error returns, and constants.

Header file Used for
MSVIDEO.H Video-capture device drivers
MSVIDDRV.H Video-capture device drivers and applications
COMPDDK.H Video compression and decompression drivers
MSACM.H Audio compression and decompression functions, structures, and constants
MSACMDRV.H Functions, structures, and constants for writing audio compression or decompression drivers
MMREG.H Registration database information, such as registration ID
MSACMDLG.H Functions, structures, and constants for using the Audio Compression Manager (ACM) standard dialog box
MSACMDLG.DLG The template for the ACM dialog box