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8.1) What are AppleEvents? (IAC - Mac Programming)




Description

This article is from the Mac Programming FAQ, by Jon Watte h+@austin.metrowerks.com with numerous contributions by others.

8.1) What are AppleEvents? (IAC - Mac Programming)

AppleEvents are a level-5 network protocol. If you are not familiar
with the ISO network stack, this means it's a way of structuring sessions
between network entities (programs) that is not dependent on the
underlying protocol (such as PPC or TCP/IP) Despite being a network
protocol, they can be very useful on Macs that are not on a network. In
short, they provide applications with a comprehensive way to send
arbitrary structured data to other applications (or themselves) which
receive the events through their main event loop.

The AppleEvent Object Model is a way of looking at applications and the
data they contain, and also a level-6 network protocol. You _can_ send
AppleEvent Object Model data through AppleEvents (and the standard
AppleEvents defined in the AppleEvent Registry use it) but you don't have
to - unless you want to talk with other applications, of course, then the
AEOM is a lingua franca.

 

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previous page: 7.4) I'm trying to write to the serial port. It works fine on the following Machines, Quadra700, IIFX, Powerbook 170, Quadra 840av, but freezes on the Duo 230 and 280c. (Communications and Networking - Mac Programming)
  
page up: Mac Programming FAQ
  
next page: 8.2) What are the four required AppleEvents? (IAC - Mac Programming)