Selects an order from the history for further calling it through appropriate functions. It returns true if the function has been successfully completed. Returns false if the function has failed. For more details on error call GetLastError().
[in] Order ticket.
Returns true if successful, otherwise false.
Do not confuse orders of a trading history with current pending orders that appear on the "Trade" tab of the "Toolbox" bar. The list of orders that were canceled or have led to a transaction, can be viewed in the "History" tab of "Toolbox" of the client terminal.
HistoryOrderSelect() clears in a mql5-program the list of orders from a history, available for calls, and copies to it a single order, if the execution of HistoryOrderSelect () has been completed successfully. If you need to go through all orders selected by HistorySelect(), you should better use HistoryOrderGetTicket().