Add SymbolSelect() and use existing local variables

MTConnector/MTConnector.cpp

@@ -255,4 +255,19 @@ int _stdcall getStringValue(int expertHandle, int paramIndex, wchar_t* res)
 		return 0;
 	}
 	return 1;
+}
+
+int _stdcall getBooleanValue(int expertHandle, int paramIndex, int* res)
+{
+	try
+	{
+		bool val = (bool)MtServerInstance::GetInstance()->GetCommandParameter(expertHandle, paramIndex);
+		*res = val == true ? 1 : 0;
+	}
+	catch (Exception^ e)
+	{
+		Debug::WriteLine("[ERROR] MT5Connector:getBooleanValue(): " + e->Message);
+		return 0;
+	}
+	return 1;
 }

MTConnector/MTConnector.def

@@ -14,4 +14,5 @@ EXPORTS initExpert
 		getCommandType
 		getIntValue
 		getDoubleValue
-		getStringValue
+		getStringValue
+		getBooleanValue

MtApi/MtApiClient.cs

@@ -652,6 +652,26 @@ namespace MtApi
 
         #endregion
 
+        #region Symbols
+        public int SymbolsTotal(bool selected)
+        {
+            var commandParameters = new ArrayList { selected };
+            return SendCommand<int>(MtCommandType.SymbolsTotal, commandParameters);
+        }
+
+        public string SymbolName(int pos, bool selected)
+        {
+            var commandParameters = new ArrayList { pos, selected };
+            return SendCommand<string>(MtCommandType.SymbolName, commandParameters);
+        }
+
+        public bool SymbolSelect(string name, bool select)
+        {
+            var commandParameters = new ArrayList { name, select };
+            return SendCommand<bool>(MtCommandType.SymbolSelect, commandParameters);
+        }
+        #endregion
+
         #region Common Function
 
         public void Alert(string msg)

MtApi/MtCommandType.cs

@@ -195,6 +195,11 @@ namespace MtApi
         MtRequest                           = 155,
 
         //Backtesting
-        BacktestingReady                    = 156
+        BacktestingReady                    = 156,
+
+        //Symbols
+        SymbolsTotal                        = 200,
+        SymbolName                          = 201,
+        SymbolSelect                        = 202
     }
 }