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SWF Action
Action Category: 
Action Details: 
Action Identifier: 
Action Structure: 
unsigned short   f_size;
Action Length: 
2 byte(s)
Action Stack: 
pop 1 (o)
Action Operation: 
with o1
  // execute f_size bytes of actions
end with;
Action Flash Version: 

The variable references within the following f_size bytes of action are taken as names of members of the specified object o1. When no member of that name is available in that object, the previous With, or the corresponding global variable is queried. This is similar to the Pascal language with instruction or to the Set Target (dynamic) for movies.

Note that the number of With within other With is limited to 7 in version 5 and 15 since version 6 (note that the official documentation says 8 and 16, but it seems that is wrong.) Additional With blocks are simply ignored. The size defines up to where the With has an effect (the f_size is taken as a branch offset except that it is always positive).

Note that it is to the creator of the action scripts to ensure the proper nesting of each With.


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