How to make AB preserve a database for a streaming real time source which does not support backfill/hist. data from the remote server and depends on the current price to build the database and is updated using ::SendMessage(ParentWn,WM_USER_STREAMING_UPDATE... -> GetQuotes Mechanism and not the Timer mechanism ?
When writing a RT data plugin nLastValid always is -1 when GetQuotes is called for the first time so automatically on startup the previous quotes are deleted also when the timer event fires periodically ( Preferences -> Intraday -> Realtime chart refresh ) again GetQuotes is called with the value of nLastValid as -1.
