Wireshark · Wireshark-dev: [Wireshark-dev] How to only output certain selected segment of a packet?

[yenan <yen1505@xxxxxxxxxxx>]

Hi folks:
I am  trying to output a paclet with a index field whihc is 20-bits long , If I use "guint32" to define the variable for "INDEX" field, and have the index value as "12345678", how can I chop the "678" off, and display only "12345" to the screen?
 
Hope I explain the question clearly, thanks thousands!
 
Nan
 
 

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