# Revision history [back]

### Capitalising hex strings in dissector field output?

Hello,

Is there a way to capitalise hex output in the field output like we can with the string formatter "0x%04X"?

I'm using that to add the details to the INFO column but not sure how to get similar formatting in the dissected fields:

PACKED_SIM_GROUP_M3UA_S (0xCFDC) from IPDU-3 to GISU-7 via EMB-0


For example, I have the field is being output like below:

DMX message number: PACKED_SIM_GROUP_M3UA_S (0xcfdc)


But I'd prefer to have the hex number printed as 0xCFDC (just makes it simpler for us to see the message number).

I am poking around the source for proto_tree_add_item to pin down where the actual hex digit printing occurs ... haven't figured it out yet.

In my dissector I'm doing this:

            static const value_string dmxMessageNumber[] = {
...
{ 0xCFDC, "PACKED_SIM_GROUP_M3UA_S" },
...
};