Modified the ObjectCreate such that it can take up to 30 anchor points (maximum amount of anchor points in mql5). The MtApi5.mq5 has been updated to cope with the added parameters. The MtApi5.ex5 has been rebuilt.

MtApi5/MtApi5Client.cs

@@ -2086,9 +2086,24 @@ namespace MtApi5
         ///<param name="nwin">Number of the chart subwindow. 0 means the main chart window. The specified subwindow must exist, otherwise the function returns false.</param>
         ///<param name="time">The time coordinate of the first anchor.</param>
         ///<param name="price">The price coordinate of the first anchor point.</param>
-        public bool ObjectCreate(long chartId, string name, ENUM_OBJECT type, int nwin, DateTime time, double price)
+        ///<param name="listOfCoordinates">List of further anchor points (tuple of time and price).</param>
+        public bool ObjectCreate(long chartId, string name, ENUM_OBJECT type, int nwin, DateTime time, double price, List<Tuple<DateTime, double>> listOfCoordinates = null)
         {
-            var commandParameters = new ArrayList { chartId, name, (int)type, nwin, Mt5TimeConverter.ConvertToMtTime(time), price };
+            //Count the additional coordinates
+            int iAdditionalCoordinates = (listOfCoordinates != null) ? listOfCoordinates.Count() : 0;
+            if(iAdditionalCoordinates > 29)
+            {
+                throw new ArgumentOutOfRangeException("listOfCoordinates", "The maximum amount of coordinates in 30.");
+            }
+
+            int nParameter = 6 + iAdditionalCoordinates * 2;
+
+            var commandParameters = new ArrayList { nParameter, chartId, name, (int)type, nwin, Mt5TimeConverter.ConvertToMtTime(time), price };
+            foreach (Tuple<DateTime, double> coordinateTuple in listOfCoordinates)
+            {
+                commandParameters.Add(Mt5TimeConverter.ConvertToMtTime(coordinateTuple.Item1));
+                commandParameters.Add(coordinateTuple.Item2);
+            }
             return SendCommand<bool>(Mt5CommandType.ObjectCreate, commandParameters);
         }
 

mq5/MtApi5.mq5

@@ -1,7 +1,7 @@
 #property copyright "Vyacheslav Demidyuk"
 #property link      ""
 
-#property version   "1.6"
+#property version   "1.7"
 #property description "MtApi (MT5) connection expert"
 
 #include <json.mqh>
@@ -3433,52 +3433,87 @@ void Execute_PositionSelectByTicket()
 
 void Execute_ObjectCreate()
 {
+   int nParameter = 0;
    long chartId;
    string name;
    int type;
    int nwin;
-   int time;
-   double price;
+   int time1;
+   double price1;
+   int arrTime[29];
+   double arrPrice[29];  
    StringInit(name, 200, 0);
    
-   if (!getLongValue(ExpertHandle, 0, chartId, _error))
+   if (!getIntValue(ExpertHandle, 0, nParameter, _error))
+   {
+      PrintParamError("ObjectCreate", "nParameter", _error);
+      sendErrorResponse(ExpertHandle, -1, _error, _response_error);
+      return;
+   }
+   
+   if (!getLongValue(ExpertHandle, 1, chartId, _error))
    {
       PrintParamError("ObjectCreate", "chartId", _error);
       sendErrorResponse(ExpertHandle, -1, _error, _response_error);
       return;
    }
-   if (!getStringValue(ExpertHandle, 1, name, _error))
+   if (!getStringValue(ExpertHandle, 2, name, _error))
    {
       PrintParamError("ObjectCreate", "name", _error);
       sendErrorResponse(ExpertHandle, -1, _error, _response_error);
       return;
    }
-   if (!getIntValue(ExpertHandle, 2, type, _error))
+   if (!getIntValue(ExpertHandle, 3, type, _error))
    {
       PrintParamError("ObjectCreate", "type", _error);
       sendErrorResponse(ExpertHandle, -1, _error, _response_error);
       return;
    }
-   if (!getIntValue(ExpertHandle, 3, nwin, _error))
+   if (!getIntValue(ExpertHandle, 4, nwin, _error))
    {
       PrintParamError("ObjectCreate", "nwin", _error);
       sendErrorResponse(ExpertHandle, -1, _error, _response_error);
       return;
    }
-   if (!getIntValue(ExpertHandle, 4, time, _error))
+   if (!getIntValue(ExpertHandle, 5, time1, _error))
    {
-      PrintParamError("ObjectCreate", "time", _error);
+      PrintParamError("ObjectCreate", "time1", _error);
       sendErrorResponse(ExpertHandle, -1, _error, _response_error);
       return;
    }
-   if (!getDoubleValue(ExpertHandle, 5, price, _error))
+   if (!getDoubleValue(ExpertHandle, 6, price1, _error))
    {
-      PrintParamError("ObjectCreate", "price", _error);
+      PrintParamError("ObjectCreate", "price1", _error);
       sendErrorResponse(ExpertHandle, -1, _error, _response_error);
       return;
    }
    
-   if (!sendBooleanResponse(ExpertHandle, ObjectCreate(chartId, name, (ENUM_OBJECT)type, nwin, (datetime)time, price), _response_error))
+   ArrayInitialize(arrTime, 0);
+   ArrayInitialize(arrPrice, 0);
+   for(int i = 0; i * 2 + 6 < nParameter; i++)
+   {
+      if (!getIntValue(ExpertHandle, i * 2 + 7, arrTime[i], _error))
+      {
+         PrintParamError("ObjectCreate", "time" + IntegerToString(i * 2 + 7), _error);
+         sendErrorResponse(ExpertHandle, -1, _error, _response_error);
+         return;
+      }
+      else if (!getDoubleValue(ExpertHandle, i * 2 + 8, arrPrice[i], _error))
+      {
+         PrintParamError("ObjectCreate", "price" + IntegerToString(i * 2 + 8), _error);
+         sendErrorResponse(ExpertHandle, -1, _error, _response_error);
+         return;
+      }    
+   }
+   
+   if (!sendBooleanResponse(ExpertHandle 
+         ,ObjectCreate(chartId, name, (ENUM_OBJECT)type, nwin, (datetime)time1, price1 
+            ,(datetime)arrTime[0], arrPrice[0],(datetime)arrTime[1], arrPrice[1],(datetime)arrTime[2], arrPrice[2],(datetime)arrTime[3], arrPrice[3],(datetime)arrTime[4], arrPrice[4],(datetime)arrTime[5], arrPrice[5] 
+            ,(datetime)arrTime[6], arrPrice[6],(datetime)arrTime[7], arrPrice[7],(datetime)arrTime[8], arrPrice[8],(datetime)arrTime[9], arrPrice[9],(datetime)arrTime[10], arrPrice[10],(datetime)arrTime[11], arrPrice[11] 
+            ,(datetime)arrTime[12], arrPrice[12],(datetime)arrTime[13], arrPrice[13],(datetime)arrTime[14], arrPrice[14],(datetime)arrTime[15], arrPrice[15],(datetime)arrTime[16], arrPrice[16],(datetime)arrTime[17], arrPrice[17] 
+            ,(datetime)arrTime[18], arrPrice[18],(datetime)arrTime[19], arrPrice[19],(datetime)arrTime[20], arrPrice[20],(datetime)arrTime[21], arrPrice[21],(datetime)arrTime[22], arrPrice[22],(datetime)arrTime[23], arrPrice[23] 
+            ,(datetime)arrTime[24], arrPrice[24],(datetime)arrTime[25], arrPrice[25],(datetime)arrTime[26], arrPrice[26],(datetime)arrTime[27], arrPrice[27],(datetime)arrTime[28], arrPrice[28])
+         , _response_error))
    {
       PrintResponseError("ObjectCreate", _response_error);
    }