MQL5 ReferenceStandard LibraryTrade ClassesCHistoryOrderInfoVolumeInitial TimeSetupTimeSetupMscOrderTypeTypeDescriptionStateStateDescriptionTimeExpirationTimeDoneTimeDoneMscTypeFillingTypeFillingDescriptionTypeTimeTypeTimeDescriptionMagicPositionIdVolumeInitialVolumeCurrentPriceOpenStopLossTakeProfitPriceCurrentPriceStopLimitSymbolCommentInfoIntegerInfoDoubleInfoStringTicketSelectByIndex VolumeInitial Gets the initial volume of order. double VolumeInitial() const Return Value Initial volume of order. Note The historical order should be selected using the Ticket (by ticket) or SelectByIndex (by index) methods. PositionId VolumeCurrent