AW: WHAT IS ROLE OF ETT field

It defines the expansion of a subtree in your dissection.
 
For example, if you have several sub trees, but always register the same
ett* with each of them, then expanding one subtree will also expand all
the others when entering them.
 
To prevent this you can add one variable pointer for each sub tree to
the array gint *extend[] and set the according pointer when adding the
sub tree. Then the expansion of every tree will be controlled seperated.
 
________________________________

Von: [email protected]
[mailto:[email protected]] Im Auftrag von Raman Singla
Gesendet: Donnerstag, 11. Mai 2006 12:00
An: [email protected]
Betreff: [Ethereal-dev] WHAT IS ROLE OF ETT field 


Hi all,
 
Kindly tell me the role of of ett field. 
 
It is usred in when we are creating the subtree from item e.g.
 
proto_item_add_subtree (subitem, ett_**);
 
Could any one please tell me the role of having an ett field here,
whereas if i give any ID it also works.
 
Why we require ett_field. (Expansion & filtering still works if i don't
give ett field in subtree). Can we skip ett fields & if we do what will
the effects ?
 
Kindly let me know ?
 
regards,
raman

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