Hi, quick question about how OrderEvents work during Live Trading. Can I expect an order that was placed manually and gets filled in my brokerage account to trigger an OnOrderEvent in my algo?

From what I can tell, only trades that were submitted by the algo, and have an OrderTicket sent back are the only ones that can trigger OnOrderEvents? 

If that is true, how can I write code in my algo to capture OrderEvents from manually placed trades?

Thanks,

Chetan