Topic       : TOS - The Operating System
Author      : 
Version     : tos.hyp (December 19, 2008)
Subject     : Programmieren/Atari
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Index Size  : 93790
HCP-Version : 5
Compiled on : Atari
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View Ref-File13.13.2.2  XAcc messages                                           TOS

There are two kinds of XAcc messages: standard messages, which must be 
understood by every participating program, and special messages 
intended for communications between specific program combinations. The 
standard messages have numbers ranging from 0x400 to 0x7ff, special 
messages start from 0x800. The latter ones may only be sent after the 
receiver has been identified and is known to understand them. The 
following description is only concerned with standard messages. In 
addition to XAcc standard messages, the AES messages normally sent by 
the screen-manager may be used. The most useful ones are AC_OPEN and 
MN_SELECTED; the latter one requires a knowledge of the receiver and 
therefore belongs to the special messages.

13.13.2.2.1  Basic XAcc messages
13.13.2.2.2  Single-tasking GEM versions
13.13.2.2.3  Multitasking GEM versions