Wireshark-dev: Re: [Wireshark-dev] custom columns in dissector
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From: Stephen Fisher <steve@xxxxxxxxxxxxxxxxxx>
Date: Wed, 2 Jun 2010 13:55:01 -0600
On Tue, Jun 01, 2010 at 10:27:28PM +0200, Andreas Schuler wrote:

> i'm writing a dissector and want to use custom columns for displaying 
> some dynamic generated informations, but when i use 
> proto_tree_add_none_format() the column remains empty although in the 
> details the right values will be displayed. other proto_tree_add_... 
> works but only show the value that comes direct from packet-data, no 
> additional text etc.

Are you sure that FT_NONE is the appropriate field type to be using for 
that?  To quote README.developer, "No field type.  Used for fields that 
aren't given a value, and that can only be tested for presence or 
absence..." - so there wouldn't be anything to be displayed in the 
custom column.  What are the dynamic values you are displaying?


-- 
Steve