Is there a proper way to force/hint all componentes like Columns UI to refresh their contents, so that the title formatting scripts are re-evaluated? If I'm not changing file information or anything, but instead changing the return values of a metadb display hook that is implemented by me. There's an undocumented function in the metadb_io interface declared as

virtual void dispatch_refresh(const pfc::list_base_const_t<metadb_handle_ptr> & p_list) = 0;

and it seems to does it just the way I want. So what does it really do? Can I use it?

Yes, this method does exactly that.

Ok, thanks.