onMarkDeleted  
  fun onMarkDeleted(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (mark: TextMark) -> Unit): <Error class: unknown class>(source)
Emitted as notification after a GtkTextMark is deleted.
See also: method@Gtk.TextBuffer.delete_mark.
Parameters
connectFlags 
a combination of ConnectFlags
handler
the Callback to connect. Params: mark The mark that was deleted