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Topic       : TOS - das Betriebssystem
Author      : 
Version     : tos.hyp (5. März 2013)
Subject     : Programmieren/Atari
Nodes       : 3001
Index Size  : 93602
HCP-Version : 5
Compiled on : Atari
@charset    : atarist
@lang       : 
@default    : Titel
@help       : 
@options    : +g -i -s +x +zz -t4
@width      : 70
View Ref-File15.11.3.4  What does the viewer do?                                TOS

When the viewer is started, it should check the command line for a 
list of filenames to view. To be consistent with the direction that 
the Atari is moving, the viewer should support the ARGV argument- 
passing scheme developed by Atari.

The viewer should support the XAcc protocol, and answer XAcc protocol 
messages.

The viewer should use the [Alternate] + [X] key combination to send 
data using the XAcc protocol messages.

If the viewer receives the VA_START message, it should determine the 
type of the file and whether or not the type is supported by itself. 
The viewer does not have to send a reply to this message. If a reply 
is needed, the application should send the message to the viewer using 
the VIEW_FILE message.