Added function ChangeAccount

MtApi/MtApiClient.cs

@@ -271,31 +271,77 @@ namespace MtApi
         public int OrderSend(string symbol, TradeOperation cmd, double volume, double price, int slippage, double stoploss, double takeprofit
                     , string comment, int magic, DateTime expiration)
         {
-            return OrderSend(symbol, cmd, volume, price, slippage, stoploss, takeprofit, comment, magic, expiration, Color.Empty);
+            var response = SendRequest<OrderSendResponse>(new OrderSendRequest
+            {
+                Symbol = symbol,
+                Cmd = (int)cmd,
+                Volume = volume,
+                Price = price,
+                Slippage = slippage,
+                Stoploss = stoploss,
+                Takeprofit = takeprofit,
+                Comment = comment,
+                Magic = magic,
+                Expiration = MtApiTimeConverter.ConvertToMtTime(expiration)
+            });
+            return response?.Ticket ?? -1;
         }
 
         public int OrderSend(string symbol, TradeOperation cmd, double volume, double price, int slippage, double stoploss, double takeprofit
                     , string comment, int magic)
         {
-            return OrderSend(symbol, cmd, volume, price, slippage, stoploss, takeprofit, comment, magic, DateTime.MinValue, Color.Empty);
+            var response = SendRequest<OrderSendResponse>(new OrderSendRequest
+            {
+                Symbol = symbol,
+                Cmd = (int)cmd,
+                Volume = volume,
+                Price = price,
+                Slippage = slippage,
+                Stoploss = stoploss,
+                Takeprofit = takeprofit,
+                Comment = comment,
+                Magic = magic
+            });
+            return response?.Ticket ?? -1;
         }
 
         public int OrderSend(string symbol, TradeOperation cmd, double volume, double price, int slippage, double stoploss, double takeprofit
                     , string comment)
         {
-            return OrderSend(symbol, cmd, volume, price, slippage, stoploss, takeprofit, comment, 0, DateTime.MinValue, Color.Empty);
+            var response = SendRequest<OrderSendResponse>(new OrderSendRequest
+            {
+                Symbol = symbol,
+                Cmd = (int)cmd,
+                Volume = volume,
+                Price = price,
+                Slippage = slippage,
+                Stoploss = stoploss,
+                Takeprofit = takeprofit,
+                Comment = comment
+            });
+            return response?.Ticket ?? -1;
         }
 
         public int OrderSend(string symbol, TradeOperation cmd, double volume, double price, int slippage, double stoploss, double takeprofit)
         {
-            return OrderSend(symbol, cmd, volume, price, slippage, stoploss, takeprofit, null, 0, DateTime.MinValue, Color.Empty);
+            var response = SendRequest<OrderSendResponse>(new OrderSendRequest
+            {
+                Symbol = symbol,
+                Cmd = (int)cmd,
+                Volume = volume,
+                Price = price,
+                Slippage = slippage,
+                Stoploss = stoploss,
+                Takeprofit = takeprofit,
+            });
+            return response?.Ticket ?? -1;
         }
 
         public int OrderSend(string symbol, TradeOperation cmd, double volume, string price, int slippage, double stoploss, double takeprofit)
         {
             double dPrice;
             return double.TryParse(price, out dPrice) ? 
-                OrderSend(symbol, cmd, volume, dPrice, slippage, stoploss, takeprofit, null, 0, DateTime.MinValue, Color.Empty) : 0;
+                OrderSend(symbol, cmd, volume, dPrice, slippage, stoploss, takeprofit) : 0;
         }
 
         public int OrderSendBuy(string symbol, double volume, int slippage)
@@ -740,7 +786,7 @@ namespace MtApi
 
         #endregion
 
-        #region Account Information
+        #region Account functions
 
         public double AccountBalance()
         {
@@ -823,6 +869,12 @@ namespace MtApi
             return SendCommand<int>(MtCommandType.AccountStopoutMode, null);
         }
 
+        public bool ChangeAccount(string login, string password, string host)
+        {
+            var commandParameters = new ArrayList { login, password, host};
+            return SendCommand<bool>(MtCommandType.ChangeAccount, commandParameters);
+        }
+
         #endregion
 
         #region Common Function

MtApi/MtCommandType.cs

@@ -229,6 +229,7 @@
         ObjectSetText                       = 233,
         ObjectType                          = 234,
 
-        UnlockTicks                         = 235
+        UnlockTicks                         = 235,
+        ChangeAccount                       = 280
     }
 }

MtApi/Properties/AssemblyInfo.cs

@@ -32,5 +32,5 @@ using System.Runtime.InteropServices;
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.0.35.0")]
-[assembly: AssemblyFileVersion("1.0.35.0")]
+[assembly: AssemblyVersion("1.0.37.0")]
+[assembly: AssemblyFileVersion("1.0.37.0")]

TestClients/TestApiClientUI/Form1.Designer.cs

@@ -202,6 +202,13 @@
             this.button4 = new System.Windows.Forms.Button();
             this.tabPage11 = new System.Windows.Forms.TabPage();
             this.button69 = new System.Windows.Forms.Button();
+            this.textBoxAccountLogin = new System.Windows.Forms.TextBox();
+            this.textBoxAccountPassword = new System.Windows.Forms.TextBox();
+            this.label31 = new System.Windows.Forms.Label();
+            this.label32 = new System.Windows.Forms.Label();
+            this.textBoxAccountHost = new System.Windows.Forms.TextBox();
+            this.label33 = new System.Windows.Forms.Label();
+            this.button70 = new System.Windows.Forms.Button();
             this.groupBox1.SuspendLayout();
             this.statusStrip1.SuspendLayout();
             this.groupBox2.SuspendLayout();
@@ -243,7 +250,7 @@
             this.buttonConnect.Location = new System.Drawing.Point(17, 73);
             this.buttonConnect.Name = "buttonConnect";
             this.buttonConnect.Size = new System.Drawing.Size(75, 23);
-            this.buttonConnect.TabIndex = 4;
+            this.buttonConnect.TabIndex = 2;
             this.buttonConnect.Text = "Connect";
             this.buttonConnect.UseVisualStyleBackColor = true;
             this.buttonConnect.Click += new System.EventHandler(this.buttonConnect_Click);
@@ -325,7 +332,7 @@
             this.checkBox2.Location = new System.Drawing.Point(6, 296);
             this.checkBox2.Name = "checkBox2";
             this.checkBox2.Size = new System.Drawing.Size(281, 17);
-            this.checkBox2.TabIndex = 16;
+            this.checkBox2.TabIndex = 5;
             this.checkBox2.Text = "Use selected ExpertHandle (chart) as default executor";
             this.checkBox2.UseVisualStyleBackColor = true;
             this.checkBox2.CheckedChanged += new System.EventHandler(this.checkBox2_CheckedChanged);
@@ -346,7 +353,7 @@
             this.listViewQuotes.MultiSelect = false;
             this.listViewQuotes.Name = "listViewQuotes";
             this.listViewQuotes.Size = new System.Drawing.Size(292, 271);
-            this.listViewQuotes.TabIndex = 15;
+            this.listViewQuotes.TabIndex = 4;
             this.listViewQuotes.UseCompatibleStateImageBehavior = false;
             this.listViewQuotes.View = System.Windows.Forms.View.Details;
             this.listViewQuotes.SelectedIndexChanged += new System.EventHandler(this.listViewQuotes_SelectedIndexChanged);
@@ -446,7 +453,7 @@
             this.button22.Location = new System.Drawing.Point(216, 293);
             this.button22.Name = "button22";
             this.button22.Size = new System.Drawing.Size(75, 23);
-            this.button22.TabIndex = 19;
+            this.button22.TabIndex = 31;
             this.button22.Text = "OrderModify";
             this.button22.UseVisualStyleBackColor = true;
             this.button22.Click += new System.EventHandler(this.button22_Click);
@@ -456,7 +463,7 @@
             this.button21.Location = new System.Drawing.Point(216, 264);
             this.button21.Name = "button21";
             this.button21.Size = new System.Drawing.Size(75, 23);
-            this.button21.TabIndex = 18;
+            this.button21.TabIndex = 30;
             this.button21.Text = "OrderDelete";
             this.button21.UseVisualStyleBackColor = true;
             this.button21.Click += new System.EventHandler(this.button21_Click);
@@ -475,7 +482,7 @@
             this.textBoxOppositeTicket.Location = new System.Drawing.Point(303, 239);
             this.textBoxOppositeTicket.Name = "textBoxOppositeTicket";
             this.textBoxOppositeTicket.Size = new System.Drawing.Size(100, 20);
-            this.textBoxOppositeTicket.TabIndex = 16;
+            this.textBoxOppositeTicket.TabIndex = 28;
             this.textBoxOppositeTicket.Text = "0";
             // 
             // button15
@@ -483,7 +490,7 @@
             this.button15.Location = new System.Drawing.Point(410, 237);
             this.button15.Name = "button15";
             this.button15.Size = new System.Drawing.Size(92, 23);
-            this.button15.TabIndex = 15;
+            this.button15.TabIndex = 29;
             this.button15.Text = "OrderCloseBy";
             this.button15.UseVisualStyleBackColor = true;
             this.button15.Click += new System.EventHandler(this.button15_Click);
@@ -494,7 +501,7 @@
             this.checkBox1.Location = new System.Drawing.Point(297, 208);
             this.checkBox1.Name = "checkBox1";
             this.checkBox1.Size = new System.Drawing.Size(205, 17);
-            this.checkBox1.TabIndex = 14;
+            this.checkBox1.TabIndex = 27;
             this.checkBox1.Text = "Close order by current price on market";
             this.checkBox1.UseVisualStyleBackColor = true;
             // 
@@ -503,7 +510,7 @@
             this.button20.Location = new System.Drawing.Point(216, 202);
             this.button20.Name = "button20";
             this.button20.Size = new System.Drawing.Size(75, 23);
-            this.button20.TabIndex = 13;
+            this.button20.TabIndex = 26;
             this.button20.Text = "OrderClose";
             this.button20.UseVisualStyleBackColor = true;
             this.button20.Click += new System.EventHandler(this.button20_Click);
@@ -513,7 +520,7 @@
             this.button17.Location = new System.Drawing.Point(558, 158);
             this.button17.Name = "button17";
             this.button17.Size = new System.Drawing.Size(75, 23);
-            this.button17.TabIndex = 12;
+            this.button17.TabIndex = 25;
             this.button17.Text = "GetOrders";
             this.button17.UseVisualStyleBackColor = true;
             this.button17.Click += new System.EventHandler(this.button17_Click);
@@ -528,7 +535,7 @@
             this.comboBox2.Location = new System.Drawing.Point(341, 158);
             this.comboBox2.Name = "comboBox2";
             this.comboBox2.Size = new System.Drawing.Size(114, 21);
-            this.comboBox2.TabIndex = 11;
+            this.comboBox2.TabIndex = 23;
             // 
             // comboBox1
             // 
@@ -540,14 +547,14 @@
             this.comboBox1.Location = new System.Drawing.Point(216, 158);
             this.comboBox1.Name = "comboBox1";
             this.comboBox1.Size = new System.Drawing.Size(119, 21);
-            this.comboBox1.TabIndex = 10;
+            this.comboBox1.TabIndex = 22;
             // 
             // button16
             // 
             this.button16.Location = new System.Drawing.Point(461, 158);
             this.button16.Name = "button16";
             this.button16.Size = new System.Drawing.Size(75, 23);
-            this.button16.TabIndex = 9;
+            this.button16.TabIndex = 24;
             this.button16.Text = "GetOrder";
             this.button16.UseVisualStyleBackColor = true;
             this.button16.Click += new System.EventHandler(this.button16_Click);
@@ -566,7 +573,7 @@
             this.textBoxIndexTicket.Location = new System.Drawing.Point(290, 132);
             this.textBoxIndexTicket.Name = "textBoxIndexTicket";
             this.textBoxIndexTicket.Size = new System.Drawing.Size(109, 20);
-            this.textBoxIndexTicket.TabIndex = 7;
+            this.textBoxIndexTicket.TabIndex = 21;
             this.textBoxIndexTicket.Text = "0";
             // 
             // comboBoxSelectedCommand
@@ -600,7 +607,7 @@
             this.comboBoxSelectedCommand.Location = new System.Drawing.Point(213, 344);
             this.comboBoxSelectedCommand.Name = "comboBoxSelectedCommand";
             this.comboBoxSelectedCommand.Size = new System.Drawing.Size(121, 21);
-            this.comboBoxSelectedCommand.TabIndex = 6;
+            this.comboBoxSelectedCommand.TabIndex = 32;
             // 
             // label15
             // 
@@ -628,14 +635,14 @@
             this.listBoxClosedOrders.Location = new System.Drawing.Point(213, 85);
             this.listBoxClosedOrders.Name = "listBoxClosedOrders";
             this.listBoxClosedOrders.Size = new System.Drawing.Size(419, 43);
-            this.listBoxClosedOrders.TabIndex = 5;
+            this.listBoxClosedOrders.TabIndex = 20;
             // 
             // button2
             // 
             this.button2.Location = new System.Drawing.Point(356, 342);
             this.button2.Name = "button2";
             this.button2.Size = new System.Drawing.Size(87, 23);
-            this.button2.TabIndex = 2;
+            this.button2.TabIndex = 33;
             this.button2.Text = "Execute";
             this.button2.UseVisualStyleBackColor = true;
             this.button2.Click += new System.EventHandler(this.button2_Click);
@@ -679,7 +686,7 @@
             this.button19.Location = new System.Drawing.Point(87, 336);
             this.button19.Name = "button19";
             this.button19.Size = new System.Drawing.Size(75, 23);
-            this.button19.TabIndex = 15;
+            this.button19.TabIndex = 18;
             this.button19.Text = "Sell";
             this.button19.UseVisualStyleBackColor = true;
             this.button19.Click += new System.EventHandler(this.button19_Click);
@@ -689,7 +696,7 @@
             this.button18.Location = new System.Drawing.Point(6, 336);
             this.button18.Name = "button18";
             this.button18.Size = new System.Drawing.Size(75, 23);
-            this.button18.TabIndex = 14;
+            this.button18.TabIndex = 17;
             this.button18.Text = "Buy";
             this.button18.UseVisualStyleBackColor = true;
             this.button18.Click += new System.EventHandler(this.button18_Click);
@@ -704,28 +711,28 @@
             this.comboBoxOrderColor.Location = new System.Drawing.Point(69, 281);
             this.comboBoxOrderColor.Name = "comboBoxOrderColor";
             this.comboBoxOrderColor.Size = new System.Drawing.Size(121, 21);
-            this.comboBoxOrderColor.TabIndex = 13;
+            this.comboBoxOrderColor.TabIndex = 15;
             // 
             // textBox2
             // 
             this.textBox2.Location = new System.Drawing.Point(70, 255);
             this.textBox2.Name = "textBox2";
             this.textBox2.Size = new System.Drawing.Size(120, 20);
-            this.textBox2.TabIndex = 11;
+            this.textBox2.TabIndex = 14;
             // 
             // textBoxOrderMagic
             // 
             this.textBoxOrderMagic.Location = new System.Drawing.Point(70, 229);
             this.textBoxOrderMagic.Name = "textBoxOrderMagic";
             this.textBoxOrderMagic.Size = new System.Drawing.Size(120, 20);
-            this.textBoxOrderMagic.TabIndex = 11;
+            this.textBoxOrderMagic.TabIndex = 13;
             // 
             // textBoxOrderComment
             // 
             this.textBoxOrderComment.Location = new System.Drawing.Point(70, 203);
             this.textBoxOrderComment.Name = "textBoxOrderComment";
             this.textBoxOrderComment.Size = new System.Drawing.Size(120, 20);
-            this.textBoxOrderComment.TabIndex = 11;
+            this.textBoxOrderComment.TabIndex = 12;
             // 
             // textBoxOrderProffit
             // 
@@ -882,7 +889,7 @@
             this.button1.Location = new System.Drawing.Point(120, 307);
             this.button1.Name = "button1";
             this.button1.Size = new System.Drawing.Size(75, 23);
-            this.button1.TabIndex = 12;
+            this.button1.TabIndex = 16;
             this.button1.Text = "Send";
             this.button1.UseVisualStyleBackColor = true;
             this.button1.Click += new System.EventHandler(this.button1_Click);
@@ -913,7 +920,7 @@
             this.listBoxSendedOrders.Name = "listBoxSendedOrders";
             this.listBoxSendedOrders.SelectionMode = System.Windows.Forms.SelectionMode.MultiSimple;
             this.listBoxSendedOrders.Size = new System.Drawing.Size(419, 43);
-            this.listBoxSendedOrders.TabIndex = 1;
+            this.listBoxSendedOrders.TabIndex = 19;
             // 
             // tabPage1
             // 
@@ -1110,6 +1117,13 @@
             // 
             // tabPage3
             // 
+            this.tabPage3.Controls.Add(this.button70);
+            this.tabPage3.Controls.Add(this.label33);
+            this.tabPage3.Controls.Add(this.label32);
+            this.tabPage3.Controls.Add(this.label31);
+            this.tabPage3.Controls.Add(this.textBoxAccountHost);
+            this.tabPage3.Controls.Add(this.textBoxAccountPassword);
+            this.tabPage3.Controls.Add(this.textBoxAccountLogin);
             this.tabPage3.Controls.Add(this.button67);
             this.tabPage3.Controls.Add(this.button66);
             this.tabPage3.Controls.Add(this.button65);
@@ -1775,10 +1789,10 @@
             this.tabPage6.Controls.Add(this.button27);
             this.tabPage6.Controls.Add(this.button14);
             this.tabPage6.Controls.Add(this.button13);
-            this.tabPage6.Location = new System.Drawing.Point(4, 22);
+            this.tabPage6.Location = new System.Drawing.Point(4, 40);
             this.tabPage6.Name = "tabPage6";
             this.tabPage6.Padding = new System.Windows.Forms.Padding(3);
-            this.tabPage6.Size = new System.Drawing.Size(638, 401);
+            this.tabPage6.Size = new System.Drawing.Size(638, 383);
             this.tabPage6.TabIndex = 6;
             this.tabPage6.Text = "Client Terminal";
             this.tabPage6.UseVisualStyleBackColor = true;
@@ -1824,10 +1838,10 @@
             // 
             this.tabPage7.Controls.Add(this.button23);
             this.tabPage7.Controls.Add(this.iCustomBtn);
-            this.tabPage7.Location = new System.Drawing.Point(4, 22);
+            this.tabPage7.Location = new System.Drawing.Point(4, 40);
             this.tabPage7.Name = "tabPage7";
             this.tabPage7.Padding = new System.Windows.Forms.Padding(3);
-            this.tabPage7.Size = new System.Drawing.Size(638, 401);
+            this.tabPage7.Size = new System.Drawing.Size(638, 383);
             this.tabPage7.TabIndex = 7;
             this.tabPage7.Text = "Technical Indicators";
             this.tabPage7.UseVisualStyleBackColor = true;
@@ -2062,6 +2076,64 @@
             this.button69.UseVisualStyleBackColor = true;
             this.button69.Click += new System.EventHandler(this.button69_Click);
             // 
+            // textBoxAccountLogin
+            // 
+            this.textBoxAccountLogin.Location = new System.Drawing.Point(232, 212);
+            this.textBoxAccountLogin.Name = "textBoxAccountLogin";
+            this.textBoxAccountLogin.Size = new System.Drawing.Size(238, 20);
+            this.textBoxAccountLogin.TabIndex = 15;
+            // 
+            // textBoxAccountPassword
+            // 
+            this.textBoxAccountPassword.Location = new System.Drawing.Point(234, 238);
+            this.textBoxAccountPassword.Name = "textBoxAccountPassword";
+            this.textBoxAccountPassword.Size = new System.Drawing.Size(238, 20);
+            this.textBoxAccountPassword.TabIndex = 16;
+            // 
+            // label31
+            // 
+            this.label31.AutoSize = true;
+            this.label31.Location = new System.Drawing.Point(168, 214);
+            this.label31.Name = "label31";
+            this.label31.Size = new System.Drawing.Size(36, 13);
+            this.label31.TabIndex = 17;
+            this.label31.Text = "Login:";
+            // 
+            // label32
+            // 
+            this.label32.AutoSize = true;
+            this.label32.Location = new System.Drawing.Point(168, 241);
+            this.label32.Name = "label32";
+            this.label32.Size = new System.Drawing.Size(56, 13);
+            this.label32.TabIndex = 17;
+            this.label32.Text = "Password:";
+            // 
+            // textBoxAccountHost
+            // 
+            this.textBoxAccountHost.Location = new System.Drawing.Point(234, 266);
+            this.textBoxAccountHost.Name = "textBoxAccountHost";
+            this.textBoxAccountHost.Size = new System.Drawing.Size(238, 20);
+            this.textBoxAccountHost.TabIndex = 17;
+            // 
+            // label33
+            // 
+            this.label33.AutoSize = true;
+            this.label33.Location = new System.Drawing.Point(168, 269);
+            this.label33.Name = "label33";
+            this.label33.Size = new System.Drawing.Size(66, 13);
+            this.label33.TabIndex = 17;
+            this.label33.Text = "MT4 Server:";
+            // 
+            // button70
+            // 
+            this.button70.Location = new System.Drawing.Point(371, 292);
+            this.button70.Name = "button70";
+            this.button70.Size = new System.Drawing.Size(97, 23);
+            this.button70.TabIndex = 18;
+            this.button70.Text = "ChangeAccount";
+            this.button70.UseVisualStyleBackColor = true;
+            this.button70.Click += new System.EventHandler(this.button70_Click);
+            // 
             // Form1
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
@@ -2287,6 +2359,13 @@
         private System.Windows.Forms.Button button68;
         private System.Windows.Forms.TabPage tabPage11;
         private System.Windows.Forms.Button button69;
+        private System.Windows.Forms.Label label33;
+        private System.Windows.Forms.Label label32;
+        private System.Windows.Forms.Label label31;
+        private System.Windows.Forms.TextBox textBoxAccountHost;
+        private System.Windows.Forms.TextBox textBoxAccountPassword;
+        private System.Windows.Forms.TextBox textBoxAccountLogin;
+        private System.Windows.Forms.Button button70;
     }
 }
 

TestClients/TestApiClientUI/Form1.cs

@@ -673,6 +673,8 @@ namespace TestApiClientUI
         //OrderSend
         private async void button1_Click(object sender, EventArgs e)
         {
+            var ticket = -1;
+
             var symbol = textBoxOrderSymbol.Text;
 
             var cmd = (TradeOperation) comboBoxOrderCommand.SelectedIndex;
@@ -693,28 +695,43 @@ namespace TestApiClientUI
 
             var comment = textBoxOrderComment.Text;
 
-            int magic;
-            int.TryParse(textBoxOrderMagic.Text, out magic);
-
-            var expiration = DateTime.Now;
-
-            Color arrowColor;
-            switch (comboBoxOrderColor.SelectedIndex)
+            if (string.IsNullOrEmpty(comment))
             {
-                case 0:
-                    arrowColor = Color.Green;
-                    break;
-                case 1:
-                    arrowColor = Color.Blue;
-                    break;
-                case 2:
-                    arrowColor = Color.Red;
-                    break;
-                default:
-                    return;
+                ticket = await Execute(() => _apiClient.OrderSend(symbol, cmd, volume, price, slippage, stoploss, takeprofit));
+            }
+            else
+            {
+                int magic;
+                if (!int.TryParse(textBoxOrderMagic.Text, out magic))
+                {
+                    ticket = await Execute(() => _apiClient.OrderSend(symbol, cmd, volume, price, slippage, stoploss, takeprofit, comment));
+                }
+                else
+                {
+                    if (comboBoxOrderColor.SelectedIndex < 0 || comboBoxOrderColor.SelectedIndex > 2)
+                    {
+                        ticket = await Execute(() => _apiClient.OrderSend(symbol, cmd, volume, price, slippage, stoploss, takeprofit, comment, magic));
+                    }
+                    else
+                    {
+                        var expiration = DateTime.Now.AddDays(1);
+                        Color arrowColor = Color.White;
+                        switch (comboBoxOrderColor.SelectedIndex)
+                        {
+                            case 0:
+                                arrowColor = Color.Green;
+                                break;
+                            case 1:
+                                arrowColor = Color.Blue;
+                                break;
+                            case 2:
+                                arrowColor = Color.Red;
+                                break;
+                        }
+                        ticket = await Execute(() => _apiClient.OrderSend(symbol, cmd, volume, price, slippage, stoploss, takeprofit, comment, magic, expiration, arrowColor));
+                    }
+                }
             }
-
-            var ticket = await Execute(() => _apiClient.OrderSend(symbol, cmd, volume, price, slippage, stoploss, takeprofit, comment, magic, expiration, arrowColor));
 
             PrintLog($"Sended order result: ticket = {ticket}");
         }
@@ -1407,5 +1424,34 @@ namespace TestApiClientUI
         {
             _apiClient.UnlockTicks();
         }
+
+        private async void button70_Click(object sender, EventArgs e)
+        {
+            var login = textBoxAccountLogin.Text;
+            var password = textBoxAccountPassword.Text;
+            var host = textBoxAccountHost.Text;
+
+            if (string.IsNullOrEmpty(login))
+            {
+                MessageBox.Show(@"Login is not defined!", @"Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
+                textBoxAccountLogin.Focus();
+                return;
+            }
+            if (string.IsNullOrEmpty(password))
+            {
+                MessageBox.Show(@"Password is not defined!", @"Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
+                textBoxAccountPassword.Focus();
+                return;
+            }
+            if (string.IsNullOrEmpty(host))
+            {
+                MessageBox.Show(@"Host is not defined!", @"Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
+                textBoxAccountHost.Focus();
+                return;
+            }
+
+            var result = await Execute(() => _apiClient.ChangeAccount(login, password, host));
+            PrintLog($"ChangeAccount result: {result}");
+        }
     }
 }

mq4/mql4-auth.mqh

@@ -0,0 +1,163 @@
+//+----------------------------------------------------------------------------+
+//|                                                              mql4-auth.mqh |
+//+----------------------------------------------------------------------------+
+//|                                                      Built by Sergey Lukin |
+//|                                                    contact@sergeylukin.com |
+//+----------------------------------------------------------------------------+
+
+#include <WinUser32.mqh>
+
+#import "user32.dll"
+int GetAncestor(int,int);
+int GetLastActivePopup(int);
+int GetDlgItem(int,int);
+int GetParent(int hWnd);
+#import
+//+------------------------------------------------------------------+
+//|                                                                  |
+//+------------------------------------------------------------------+
+bool loginDialogIsOpen()
+  {
+   int hwnd=WindowHandle(Symbol(),Period());
+   int hMetaTrader,hLoginDialog=0;
+
+// Retrieve Terminal Window Handler
+   while(!IsStopped())
+     {
+      hwnd=GetParent(hwnd);
+      if(hwnd==0) break;
+      hMetaTrader=hwnd;
+     }
+
+   hLoginDialog=GetLastActivePopup(hMetaTrader);
+   if(hLoginDialog!=0)
+     {
+      return(true);
+        } else {
+      return(false);
+     }
+  }
+//+------------------------------------------------------------------+
+//|                                                                  |
+//+------------------------------------------------------------------+
+void closeLoginDialog()
+  {
+   int hwnd=WindowHandle(Symbol(),Period());
+   int hMetaTrader,hLoginDialog=0,hCancelButton=0;
+
+// Retrieve Terminal Window Handler
+   while(!IsStopped())
+     {
+      hwnd=GetParent(hwnd);
+      if(hwnd==0) break;
+      hMetaTrader=hwnd;
+     }
+
+   Sleep(60);
+
+   hLoginDialog=GetLastActivePopup(hMetaTrader);
+   if(hLoginDialog!=0)
+     {
+      hCancelButton=GetDlgItem(hLoginDialog,0x2);
+      if(hCancelButton!=0)
+        {
+         // Click "Cancel" button in Login Dialog
+         PostMessageA(hCancelButton,0x00F5,0,0);
+        }
+     }
+  }
+//+------------------------------------------------------------------+
+//|                                                                  |
+//+------------------------------------------------------------------+
+bool auth(string login,string passwd,string server)
+  {
+   datetime s=TimeLocal();
+   int h = 0, e = 0, a = GetAncestor(WindowHandle(Symbol(), NULL), 2);
+   int i = 0;
+
+   PostMessageA(a,WM_COMMAND,35429,0);
+
+   while(e==0)
+     {
+      // Give us up to a minute to find the Login dialog
+      if(TimeLocal()-s>60)
+        {
+         return(false);
+        }
+
+      h=GetLastActivePopup(a);
+
+      // Select login field
+      e=GetDlgItem(h,0x49d);
+
+      Sleep(1);
+     }
+
+// Press DELETE key many times in login field to remove current value
+   for(i=1; i<=100; i++) 
+     {
+      PostMessageA(e,WM_KEYDOWN,0x2E,1);
+     }
+// Iterate over characters in "login" string and pass them to login field one by one
+   char login_chars[];
+   string2CharsArray(login,login_chars);
+   for(i=0; i<ArraySize(login_chars); i++) 
+     {
+      PostMessageA(e,WM_CHAR,login_chars[i],0);
+     }
+
+// Select password field
+   e=GetDlgItem(h,0x4c4);
+// Press DELETE key many times in password field to remove current value
+   for(i=1; i<=100; i++) 
+     {
+      PostMessageA(e,WM_KEYDOWN,0x2E,1);
+     }
+// Iterate over characters in "passwd" string and pass them to password field one by one
+   char password_chars[];
+   string2CharsArray(passwd,password_chars);
+   for(i=0; i<ArraySize(password_chars); i++) 
+     {
+      PostMessageA(e,WM_CHAR,password_chars[i],0);
+     }
+
+// Select server field
+   e=GetDlgItem(h,0x50d);
+// Press DELETE key many times in server field to remove current value
+   for(i=1; i<=100; i++) 
+     {
+      PostMessageA(e,WM_KEYDOWN,0x2E,1);
+     }
+// Iterate over characters in "server" string and pass them to server field one by one
+   char server_chars[];
+   string2CharsArray(server,server_chars);
+
+   for(i=0; i<ArraySize(server_chars); i++) 
+     {
+      PostMessageA(e,WM_CHAR,server_chars[i],0);
+     }
+   Sleep(2*1000);
+// Press submit button
+   e=GetDlgItem(h,0x1);
+   SendMessageA(e,0x00F5,0,0);
+
+   return(true);
+  }
+//+------------------------------------------------------------------+
+//|                                                                  |
+//+------------------------------------------------------------------+
+/*
+ * Iterates over string and puts each character code in array
+ */
+void string2CharsArray(string myString,char  &chars[])
+  {
+   int cnt=StringLen(myString);
+   ArrayResize(chars,cnt);
+
+   for(int i=0; i<cnt; i++) 
+     {
+      chars[i]=StringGetChar(myString,i);
+     }
+  }
+//+------------------------------------------------------------------+
+