We declared it as static because we want the value to be retained in memory until the next call of the OnTick function. Then we will be able to compare its value with the New_Time variable (also of datetime data type), which is an array of one element to hold the new(current) bar time.
We also declared a bool data type variable IsNewBar and sets its value to false. This is because we want its value to be TRUE only when ninjatrader forex we robo forex broker review have scalping ea 2.7 a new bar. We use the CopyTime function to get the time of the current bar. It copies the bar time to the array New_Time with one element; if it is successful, we compare the ninjatrader forex time of a new bar with the previous bar time. If the times arent equal, it means that we have a new bar, and we set the variable IsNewBar to TRUE and save the value of the current bar time to the variable Old_Time. The IsNewBar variable indicates that we have a new bar.
If its FALSE, we finish the execution ninjatrader forex of OnTick function.
Ninjatrader forex Applicable.it checks for the debug mode execution, it will print the message about the bar times when debug mode, we will consider it further.
The next thing we want to do here is to ninjatrader forex check if we have enough bars to work with. We just want to be sure that our EA works correctly.
It should be noted that while the OnInit function is called ninjatrader forex only once when the EA is attached ninjatrader forex to a chart, the OnTick function is called ninjatrader forex every time there is a new tick (ninjatrader forex price quote). You observe that we have done it again differently here. We decide to store the total bars in history which we ninjatrader obtained forex from the expression. in a new variable, Mybars , declared within the OnTick function. This type of variable is a local variable, unlike the variable we declared at the INPUT ninjatrader forex PARAMETERS section of our code. While the variables, forex ninjatrader declared at the Input forex ea take profit Parameters section of our code, are available to all functions, within our code that may need them, variables ninjatrader forex declared within a single function is limited and available to that function alone. Next, we declared a few variables of MQL5 structure types which will be used in this section of ninjatrader forex our EA.
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This is a ninjatrader forex structure used for storing the latest prices of ninjatrader forex symbols. struct MqlTick datetime time ; Time of ninjatrader forex the last prices update double bid ; Current Bid ninjatrader price forex double ask ; Current Ask price double last ; Price of the last deal (Last) ulong forex ninjatrader volume ; Volume for the current Last price ; Any ninjatrader variable forex declared to be of the MqlTick type can easily be used to obtain the ninjatrader forex current values of Ask, Bid, Last and forex ninjatrader Volume once you call the SymbolInfoTick() function.
So we declared latest_price as a MqlTick type so that we could use it to get ninjatrader the forex Ask and Bid prices. This structure is used to perform all trade requests for ninjatrader forex a trade operation.
It contains, in its structure, all the fields necessary for performing a trade deal. struct MqlTradeRequest ENUM_TRADE_REQUEST_ACTIONS action ; Trade operation ninjatrader forex forex tester tick data type ulong magic ; Expert Advisor ID (magic number) ulong order ; Order ticket string symbol ; Trade symbol double volume ; Requested volume for a ninjatrader deal forex in lots double price ; Price double stoplimit ; StopLimit level of the order double sl ; Stop Loss level of the order double tp ; Take Profit level of the order ulong deviation ; Maximal possible deviation from the requested price ENUM_ORDER_TYPE type ; Order type ENUM_ORDER_TYPE_FILLING type_filling ; Order execution type ENUM_ORDER_TYPE_TIME type_time ; Order execution time datetime ninjatrader expiration forex ; Order expiration time (for the orders of ORDER_TIME_SPECIFIED type) string comment ; Order comment ; Any variable declared to be of the MqlTradeRequest type can be used to send orders for our trade operations.