MMAPG - What's New...

Multimedia Application Programming Guide

Introduction What's New... Multimedia Application Programming Environment Media Control Interface Multimedia Logical Devices Amplifier-Mixer Device Waveform Audio Device Sequencer Device CD Audio Device CD-XA Device Videodisc Device Digital Video Device Direct Interface Video Extensions (DIVE) Captioning OS/2 Multimedia Controls Multimedia I/O File Services Resource Interchange File Format (RIFF) Services Sample Application Programs Installing a Program Using MINSTALL Caption DLL High-Level Service API Notices Glossary

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This release of the OS/2 Multimedia Application Programming Guide includes the following:

Using a Control Program Queue for Notifications

An OS/2 application that does not have a PM window, and therefore cannot use a PM message queue for receiving notification messages, can use an OS/2 Control Program queue instead. The Control Program queue method of notification should also be considered for time-critical PM applications, because it is faster than using the PM message queue.

Direct Audio RouTines (DART) Interface

The DART interface enables games and multimedia applications to bypass the waveaudio device entirely and communicate directly with the amp mixer.

Additional DIVE functionality

DIVE transparent blitting functions enable an interactive game or imaging application to create composites of graphics and image data using a transparency key color. See Transparent Blitting for more information.

Additional flags for MCI_CUE

Additional MCI_CUE flags allow digital video devices to seek to a specified position and to display or hide the video window when cueing the media. See Playing Motion Video Files for more information.