From: Richard Sharpe | Hi,
[snip] | Now, I notice that if you right-click when you are over the proto column | and select match-->selected, it does not build a display filter | expression, while if you right-click when over Destination or etc, it | does. | | Now, this would seem to be because the if expression above is false, so | perhaps cfile.cinfo.col_expr has not been set up for the proto field. | | Hmmm, but perhaps what I could do is check if it is the proto field, and | if so, simply return the value from that column ... that might work. The proto column is not *the* protocol used, but *a* protocol present in the packet. There is no reference to the protocol which has set the column value, so it is not "possible" to build a display filter based on the proto column. | We would not want to use the info field, however. Agreed, as the Info field only contains a sort of summary which has been set by potentially all protocols in the packet. As a matter of fact, the explanation on the 'Protocol' column also applies to the 'Info' column, so the 'however' in your sentence should be read as 'either' :) Regards, Olivier _______________________________________________ Ethereal-dev mailing list [EMAIL PROTECTED] http://www.ethereal.com/mailman/listinfo/ethereal-dev