Hướng dẫn cách dùng

int64 Open(const string& in symbol,double volume,float price,uint16 cmd,bool islock,float sl,float tp,bool byanyprice,uint max_deviation,uint trailing_dist)

Opening a position¹.

Parameters:

• string symbol - symbol for trading
• double volume - volume
• float price - opening price
• uint16 cmd - direction
• bool islock - lock flag
• float sl - stop loss price
• float tp - take profit price
• bool byanyprice - open at any price flag
• uint max_deviation - maximum deviation from opening price
• uint trailing_dist - trailing stop distance

When the result is successful the unique deal identifier is returned.

If case of failure, 0 is returned, and error code can be found via System.LastError.

Example

bool Modify(int64 id,float sl,float tp,uint trailing)

Modifying an existing position.

Parameters:

• int64 id - position ID
• float sl - stop loss price
• float tp - take profit price
• uint trailing - trailing stop distance

Returned value - flag of successful position modification. In case of failure, the error code can be found via System.LastError

bool Unlock(const string& in symbol,int64 dealid1,int64 dealid2)

Unlocking a pair of existing positions of the opposite direction.

Parameters:

• string symbol - position symbol
• int64 dealid1 - first position ID
• int64 dealid2 - second position ID

Returned value - flag of successful position unlocking. In case of failure , the error code can be found via System.LastError

bool Close(int64 id,float bid,float ask,bool byanyprice,uint max_deviation)

Closing the existing position.

Parameters:

• int64 id - position ID
• float bid, ask - closing prices
• bool byanyprice - closing at any price flag
• uint max_deviation - maximum deviation from closing price

Returned value - flag of successful position closure. In case of failure, the error code can be found via System.LastError

bool Select(int64 sel,int mode)

Selects a deal for future reference to its properties.

Parameters:

• int64 sel - ID or a position of a deal, depending on selection mode
• int mode - deal selection mode

Example

Deals Properties (selected position properties)

Before using position properties, the position should be selected by the function Select().

• int Total - returns the number of open positions (the preliminary invoke of the function Select is not necessary)
• int64 ID - unique position ID
• string Symbol - position symbol
• uint16 Direction - direction
• double Volume - position volume
• bool IsLock - position lock
• datetime OpenTime - open time
• float OpenPrice - close time
• float SL - stop loss
• float TP - take profit
• bool TrailingActive - trailing activity flag
• uint TrailingDistance - trailing distance
• double Swap - deal swap

¹ If positions of opposite directions are being opened with the flag islock=true, their symbols coincide with one another and their volumes are equal, the positions collapse and Open() function for the second position returns a non-zero value.