Specifications

CHAPTER 3
Application Program Interface
26
The AppleVision 1710AV and 1710 Displays use a new Macintosh framework known as
the AV Architecture. This architecture allows you to access all kinds of audio and video
(AV) devices, such as displays, speakers, volume controls, CD players, and so forth. The
is described in detail in the AV Architecture Developer Note .
The AV Architecture is made up of four basic groups of components: the Panel
Components, the Engine Components, the Port Components, and the Device
Components. The AV Architecture Developer Note describes these components in detail,
and explains the relationships between them. Figure 3-1 shows a simplified view of the
architecture and its components.
Figure 3-1 Simplified view of the AV Architecture
The AV application used with the AppleVision displays to implement the architecture is
known AppleVision Setup. The panels and windows that comprise the applications are
based on AV Architecture components, many of which are proprietary. This chapter
provides you with information that is useful if you want to modify certain
non-proprietary component functions. For information on how to use the AppleVision
Setup panels, you should refer to the User’s Guides for the AppleVision displays.
AV application
AppleVision Setup
Desktop audio
and/or video device
Macintosh
Toolbox
AV Architecture
Hardware
abstraction
layer
Drivers
Panel Component
For every panel needed
in the human interface
Device Component
For every desktop
device
Engine Component
For each function or 
set of related
functions of each port
Port Component
For every input or
output element in
the desktop device