Topic       : TOS - The Operating System
Author      : 
Version     : tos.hyp (December 19, 2008)
Subject     : Programmieren/Atari
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Compiled on : Atari
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View Ref-File13.7.2  The OBNCOMM structure                                      TOS

The OBNCOMM structure is built up as follows:

     typedef struct _obncomm
     {
       int   type;
       void *ptr;
       int   chr;
       void *env;
     } OBNCOMM;

The field type contains one message number at a time. Depending on 
this number, the other entries of the structure are then filled.

'int' is a signed 16-bit integer, 'void *' is a pointer to 'something' 
i.e. it is not at first specified particularly what type of data the 
pointer points to.