Wireshark · Ethereal-dev: Re: [Ethereal-dev] using a bitmask without dotted presentation?

[Guy Harris <gharris@xxxxxxxxx>]

Patrick Fuchs wrote:

> i want to work with a bitmask in a hf_register_info-element to compute 
> and display a value smaller than 8 bit. Is it possible to do this 
> without having the special dotted bitmaskpresentation. (->" ..010...")  
> if i use a proto_add_yyy funktion?

Only if you use proto_tree_add_XXX_format().  Ethereal's standard 
display format for bitfields is the dotted presentation, so you have to 
bypass Ethereal's standard formatting to get anything else.

Alternatively, you could add fields that *aren't* bitfields, and do your 
own masking and shifting and use proto_tree_add_uint(), etc. to add the 
item to the protocol tree.