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From Alexis La Goutte via https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5603 : 

Following the discussion on the dev mailing list about ett_ value in subtree
http://www.wireshark.org/lists/wireshark-dev/201101/msg00039.html

a small to update the Readme Developer Guide !

svn path=/trunk/; revision=35610
This commit is contained in:
Jeff Morriss 2011-01-21 17:08:35 +00:00
parent 4374c0b0b7
commit 4eb43096b1
1 changed files with 6 additions and 0 deletions
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@ -2074,6 +2074,12 @@ array of pointers to "gint" variables to hold the subtree type values to
in your "register" routine, just as you register the protocol and the
fields for that protocol.
The ett_ variables identify particular type of subtree so that if you expand
one of them, Wireshark keeps track of that and, when you click on
another packet, it automatically opens all subtrees of that type.
If you close one of them, all subtrees of that type will be closed when
you move to another packet.
There are several functions that the programmer can use to add either
protocol or field labels to the proto_tree: