Common Desktop Environment: Programmer's Overview

Media Message Set

The Media Message Set allows an application to be a container for arbitrary media, or to be a media player/editor that can be driven from such a container. The Media message interface allows a container application (such as Mailer or File Manager) to compose, display, edit, or print a file or buffer of an arbitrary media type, without understanding anything about the format of that media type. ToolTalk routes a container's requests to the user's preferred tool for the given media type and operation. This includes routing the request to an already-running instance of the tool if that instance can best handle the request.