[Evolution-hackers] Callbacks functions in mail list view

[Evgeny Kozhanov <evgeny kozhanov trustverse com>]

Hi!
I want attach callback function to flag "Follow up" in mail list view. But I can`t find where is attached other callbaks, such as attached to "State" and "Flaged".

I would be very grateful if you can help me and say where is I must attached this function.