Re: what is the meaning of function proto_register_subtree_array?

[Bill Meier <wmeier () newsguy com>]

On 2/16/2014 7:44 AM, 我想不无聊 wrote:
> when you register a protocol,you should do the following three steps,
> 1.proto_register_protocol();
> 2.proto_register_field_array();
> 3.proto_register_subtree_array()
>
> what does the third function proto_register_subtree_array do?why ?and do
> it for what reason?

Essentially: proto_register_subtree() registers variables (usually named 
ett_...) which are used to store state as to whether a particular 
sub-tree is expanded or not in the "packet-details" pane in the GUI.


See proto_item_add_subtree(...) in the code for pretty much any dissector.


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