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Extcap - how to use Messages Control Protocol

Hello Wireshark folks,

I have created an ExtCap that capture 802.15.4 (ZigBee) packets and pipe them to DLT Link Type 283. The capture works great and packets are well displayed in Wireshark GUI.

I wish to display some extra information to the user (the channel being monitored) in the status bar. That way when multiple instances of Wireshark are capturing, it will be possible to identify what channel is being monitored by a particular instance. I have tried to use Messages via the Control Protocols but I just can't make it work.

So the questions are: - How to display status bar messages using extcap? - The documentation refers to a control pipe (8.2.3.2.1), is a control pipe needed?

Any clue would appreciated.

My extcap is written in C and compiled for Windows.

Thanks