Selects an order to work with. Returns true if the function has been successfully completed. Returns false if the function completion has failed. For more information about an error call GetLastError().
[in] Order ticket.
Value of the bool type.
Do not confuse current pending orders with positions, which are also displayed on the "Trade" tab of the "Toolbox" of the client terminal.
For the "netting" interpretation of positions (ACCOUNT_MARGIN_MODE_RETAIL_NETTING and ACCOUNT_MARGIN_MODE_EXCHANGE), only one position can exist for a symbol at any moment of time. This position is a result of one or more deals. Do not confuse positions with valid pending orders, which are also displayed on the Trading tab of the Toolbox window.
If individual positions are allowed (ACCOUNT_MARGIN_MODE_RETAIL_HEDGING), multiple positions can be open for one symbol.
Function OrderSelect() copies data about an order into the program environment, and further calls of OrderGetDouble(), OrderGetInteger(), OrderGetString() return the earlier copied data. This means that the order itself may no longer exist (or its open price, Stop Loss/Take Profit levels or expiration has changed), but data of this order still can be obtained. To ensure receipt of fresh data about an order, it is recommended to call OrderSelect() right before referring to them.