code conversion

Question

hi all

i have a code written in c++ i want to convert it into vb code can any one help

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Runtime.InteropServices;
using TwinCAT.Ads;


namespace Sample07
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
internal System.Windows.Forms.Button btnDeleteNotifications;
internal System.Windows.Forms.Button btnAddNotifications;
internal System.Windows.Forms.Button btnWrite;
internal System.Windows.Forms.Button btnRead;
internal System.Windows.Forms.GroupBox GroupBox3;
internal System.Windows.Forms.TextBox tbComplexStruct_dintArr;
internal System.Windows.Forms.Label Label14;
internal System.Windows.Forms.TextBox tbComplexStruct_ByteVal;
internal System.Windows.Forms.Label Label13;
internal System.Windows.Forms.TextBox tbComplexStruct_SimpleStruct1_lrealVal;
internal System.Windows.Forms.Label Label12;
internal System.Windows.Forms.TextBox tbComplexStruct_SimpleStruct_dintVal;
internal System.Windows.Forms.Label Label11;
internal System.Windows.Forms.Label Label5;
internal System.Windows.Forms.TextBox tbComplexStruct_stringVal;
internal System.Windows.Forms.Label Label3;
internal System.Windows.Forms.TextBox tbComplexStruct_boolVal;
internal System.Windows.Forms.Label Label9;
internal System.Windows.Forms.TextBox tbComplexStruct_IntVal;
internal System.Windows.Forms.Label Label10;
internal System.Windows.Forms.GroupBox GroupBox2;
internal System.Windows.Forms.TextBox tbStr2;
internal System.Windows.Forms.Label Label7;
internal System.Windows.Forms.TextBox tbStr1;
internal System.Windows.Forms.Label Label8;
internal System.Windows.Forms.GroupBox GroupBox1;
internal System.Windows.Forms.TextBox tblreal1;
internal System.Windows.Forms.Label Label6;
internal System.Windows.Forms.TextBox tbUsint1;
internal System.Windows.Forms.Label Label4;
internal System.Windows.Forms.TextBox tbDint1;
internal System.Windows.Forms.Label Label2;
internal System.Windows.Forms.TextBox tbBool1;
internal System.Windows.Forms.Label Label1;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;

//PLC variable handles
private int hdint1;
private int hbool1;    
private int husint1;
private int hlreal1;
private int hstr1;
private int hstr2;
private int hcomplexStruct;
private ArrayList notificationHandles;

private TcAdsClient adsClient;

public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();

//
// TODO: Add any constructor code after InitializeComponent call
//
}

/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null) 
{
components.Dispose();
}
}
base.Dispose( disposing );
}

#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.btnDeleteNotifications = new System.Windows.Forms.Button();
this.btnAddNotifications = new System.Windows.Forms.Button();
this.btnWrite = new System.Windows.Forms.Button();
this.btnRead = new System.Windows.Forms.Button();
this.GroupBox3 = new System.Windows.Forms.GroupBox();
this.tbComplexStruct_dintArr = new System.Windows.Forms.TextBox();
this.Label14 = new System.Windows.Forms.Label();
this.tbComplexStruct_ByteVal = new System.Windows.Forms.TextBox();
this.Label13 = new System.Windows.Forms.Label();
this.tbComplexStruct_SimpleStruct1_lrealVal = new System.Windows.Forms.TextBox();
this.Label12 = new System.Windows.Forms.Label();
this.tbComplexStruct_SimpleStruct_dintVal = new System.Windows.Forms.TextBox();
this.Label11 = new System.Windows.Forms.Label();
this.Label5 = new System.Windows.Forms.Label();
this.tbComplexStruct_stringVal = new System.Windows.Forms.TextBox();
this.Label3 = new System.Windows.Forms.Label();
this.tbComplexStruct_boolVal = new System.Windows.Forms.TextBox();
this.Label9 = new System.Windows.Forms.Label();
this.tbComplexStruct_IntVal = new System.Windows.Forms.TextBox();
this.Label10 = new System.Windows.Forms.Label();
this.GroupBox2 = new System.Windows.Forms.GroupBox();
this.tbStr2 = new System.Windows.Forms.TextBox();
this.Label7 = new System.Windows.Forms.Label();
this.tbStr1 = new System.Windows.Forms.TextBox();
this.Label8 = new System.Windows.Forms.Label();
this.GroupBox1 = new System.Windows.Forms.GroupBox();
this.tblreal1 = new System.Windows.Forms.TextBox();
this.Label6 = new System.Windows.Forms.Label();
this.tbUsint1 = new System.Windows.Forms.TextBox();
this.Label4 = new System.Windows.Forms.Label();
this.tbDint1 = new System.Windows.Forms.TextBox();
this.Label2 = new System.Windows.Forms.Label();
this.tbBool1 = new System.Windows.Forms.TextBox();
this.Label1 = new System.Windows.Forms.Label();
this.GroupBox3.SuspendLayout();
this.GroupBox2.SuspendLayout();
this.GroupBox1.SuspendLayout();
this.SuspendLayout();
// 
// btnDeleteNotifications
// 
this.btnDeleteNotifications.Location = new System.Drawing.Point(472, 112);
this.btnDeleteNotifications.Name = "btnDeleteNotifications";
this.btnDeleteNotifications.Size = new System.Drawing.Size(112, 23);
this.btnDeleteNotifications.TabIndex = 13;
this.btnDeleteNotifications.Text = "Delete Notifications";
this.btnDeleteNotifications.Click += new System.EventHandler(this.btnDeleteNotifications_Click);
// 
// btnAddNotifications
// 
this.btnAddNotifications.Location = new System.Drawing.Point(472, 80);
this.btnAddNotifications.Name = "btnAddNotifications";
this.btnAddNotifications.Size = new System.Drawing.Size(112, 23);
this.btnAddNotifications.TabIndex = 12;
this.btnAddNotifications.Text = "Add Notifications";
this.btnAddNotifications.Click += new System.EventHandler(this.btnAddNotifications_Click);
// 
// btnWrite
// 
this.btnWrite.Location = new System.Drawing.Point(472, 48);
this.btnWrite.Name = "btnWrite";
this.btnWrite.Size = new System.Drawing.Size(112, 23);
this.btnWrite.TabIndex = 11;
this.btnWrite.Text = "Write";
this.btnWrite.Click += new System.EventHandler(this.btnWrite_Click);
// 
// btnRead
// 
this.btnRead.Location = new System.Drawing.Point(472, 16);
this.btnRead.Name = "btnRead";
this.btnRead.Size = new System.Drawing.Size(112, 23);
this.btnRead.TabIndex = 10;
this.btnRead.Text = "Read";
this.btnRead.Click += new System.EventHandler(this.btnRead_Click);
// 
// GroupBox3
// 
this.GroupBox3.Controls.Add(this.tbComplexStruct_dintArr);
this.GroupBox3.Controls.Add(this.Label14);
this.GroupBox3.Controls.Add(this.tbComplexStruct_ByteVal);
this.GroupBox3.Controls.Add(this.Label13);
this.GroupBox3.Controls.Add(this.tbComplexStruct_SimpleStruct1_lrealVal);
this.GroupBox3.Controls.Add(this.Label12);
this.GroupBox3.Controls.Add(this.tbComplexStruct_SimpleStruct_dintVal);
this.GroupBox3.Controls.Add(this.Label11);
this.GroupBox3.Controls.Add(this.Label5);
this.GroupBox3.Controls.Add(this.tbComplexStruct_stringVal);
this.GroupBox3.Controls.Add(this.Label3);
this.GroupBox3.Controls.Add(this.tbComplexStruct_boolVal);
this.GroupBox3.Controls.Add(this.Label9);
this.GroupBox3.Controls.Add(this.tbComplexStruct_IntVal);
this.GroupBox3.Controls.Add(this.Label10);
this.GroupBox3.Location = new System.Drawing.Point(184, 8);
this.GroupBox3.Name = "GroupBox3";
this.GroupBox3.Size = new System.Drawing.Size(272, 280);
this.GroupBox3.TabIndex = 9;
this.GroupBox3.TabStop = false;
this.GroupBox3.Text = "Complex Structure";
// 
// tbComplexStruct_dintArr
// 
this.tbComplexStruct_dintArr.Location = new System.Drawing.Point(64, 56);
this.tbComplexStruct_dintArr.Name = "tbComplexStruct_dintArr";
this.tbComplexStruct_dintArr.Size = new System.Drawing.Size(192, 20);
this.tbComplexStruct_dintArr.TabIndex = 20;
this.tbComplexStruct_dintArr.Text = "";
// 
// Label14
// 
this.Label14.Location = new System.Drawing.Point(8, 56);
this.Label14.Name = "Label14";
this.Label14.Size = new System.Drawing.Size(48, 16);
this.Label14.TabIndex = 19;
this.Label14.Text = "dintArr:";
// 
// tbComplexStruct_ByteVal
// 
this.tbComplexStruct_ByteVal.Location = new System.Drawing.Point(64, 120);
this.tbComplexStruct_ByteVal.Name = "tbComplexStruct_ByteVal";
this.tbComplexStruct_ByteVal.Size = new System.Drawing.Size(192, 20);
this.tbComplexStruct_ByteVal.TabIndex = 18;
this.tbComplexStruct_ByteVal.Text = "";
// 
// Label13
// 
this.Label13.Location = new System.Drawing.Point(8, 120);
this.Label13.Name = "Label13";
this.Label13.Size = new System.Drawing.Size(56, 16);
this.Label13.TabIndex = 17;
this.Label13.Text = "byteVal:";
// 
// tbComplexStruct_SimpleStruct1_lrealVal
// 
this.tbComplexStruct_SimpleStruct1_lrealVal.Location = new System.Drawing.Point(104, 216);
this.tbComplexStruct_SimpleStruct1_lrealVal.Name = "tbComplexStruct_SimpleStruct1_lrealVal";
this.tbComplexStruct_SimpleStruct1_lrealVal.Size = new System.Drawing.Size(152, 20);
this.tbComplexStruct_SimpleStruct1_lrealVal.TabIndex = 16;
this.tbComplexStruct_SimpleStruct1_lrealVal.Text = "";
// 
// Label12
// 
this.Label12.Location = new System.Drawing.Point(48, 216);
this.Label12.Name = "Label12";
this.Label12.Size = new System.Drawing.Size(48, 16);
this.Label12.TabIndex = 15;
this.Label12.Text = "lrealVal:";
// 
// tbComplexStruct_SimpleStruct_dintVal
// 
this.tbComplexStruct_SimpleStruct_dintVal.Location = new System.Drawing.Point(104, 248);
this.tbComplexStruct_SimpleStruct_dintVal.Name = "tbComplexStruct_SimpleStruct_dintVal";
this.tbComplexStruct_SimpleStruct_dintVal.Size = new System.Drawing.Size(152, 20);
this.tbComplexStruct_SimpleStruct_dintVal.TabIndex = 14;
this.tbComplexStruct_SimpleStruct_dintVal.Text = "";
// 
// Label11
// 
this.Label11.Location = new System.Drawing.Point(48, 248);
this.Label11.Name = "Label11";
this.Label11.Size = new System.Drawing.Size(48, 16);
this.Label11.TabIndex = 13;
this.Label11.Text = "dintVal:";
// 
// Label5
// 
this.Label5.Location = new System.Drawing.Point(8, 184);
this.Label5.Name = "Label5";
this.Label5.Size = new System.Drawing.Size(80, 23);
this.Label5.TabIndex = 12;
this.Label5.Text = "simpleStruct1:";
// 
// tbComplexStruct_stringVal
// 
this.tbComplexStruct_stringVal.Location = new System.Drawing.Point(64, 152);
this.tbComplexStruct_stringVal.Name = "tbComplexStruct_stringVal";
this.tbComplexStruct_stringVal.Size = new System.Drawing.Size(192, 20);
this.tbComplexStruct_stringVal.TabIndex = 11;
this.tbComplexStruct_stringVal.Text = "";
// 
// Label3
// 
this.Label3.Location = new System.Drawing.Point(8, 152);
this.Label3.Name = "Label3";
this.Label3.Size = new System.Drawing.Size(56, 16);
this.Label3.TabIndex = 10;
this.Label3.Text = "stringVal:";
// 
// tbComplexStruct_boolVal
// 
this.tbComplexStruct_boolVal.Location = new System.Drawing.Point(64, 88);
this.tbComplexStruct_boolVal.Name = "tbComplexStruct_boolVal";
this.tbComplexStruct_boolVal.Size = new System.Drawing.Size(192, 20);
this.tbComplexStruct_boolVal.TabIndex = 3;
this.tbComplexStruct_boolVal.Text = "";
// 
// Label9
// 
this.Label9.Location = new System.Drawing.Point(8, 88);
this.Label9.Name = "Label9";
this.Label9.Size = new System.Drawing.Size(48, 16);
this.Label9.TabIndex = 2;
this.Label9.Text = "boolVal:";
// 
// tbComplexStruct_IntVal
// 
this.tbComplexStruct_IntVal.Location = new System.Drawing.Point(64, 27);
this.tbComplexStruct_IntVal.Name = "tbComplexStruct_IntVal";
this.tbComplexStruct_IntVal.Size = new System.Drawing.Size(192, 20);
this.tbComplexStruct_IntVal.TabIndex = 1;
this.tbComplexStruct_IntVal.Text = "";
// 
// Label10
// 
this.Label10.Location = new System.Drawing.Point(8, 27);
this.Label10.Name = "Label10";
this.Label10.Size = new System.Drawing.Size(40, 16);
this.Label10.TabIndex = 0;
this.Label10.Text = "intVal:";
// 
// GroupBox2
// 
this.GroupBox2.Controls.Add(this.tbStr2);
this.GroupBox2.Controls.Add(this.Label7);
this.GroupBox2.Controls.Add(this.tbStr1);
this.GroupBox2.Controls.Add(this.Label8);
this.GroupBox2.Location = new System.Drawing.Point(8, 168);
this.GroupBox2.Name = "GroupBox2";
this.GroupBox2.Size = new System.Drawing.Size(168, 88);
this.GroupBox2.TabIndex = 8;
this.GroupBox2.TabStop = false;
this.GroupBox2.Text = "String Types";
// 
// tbStr2
// 
this.tbStr2.Location = new System.Drawing.Point(48, 56);
this.tbStr2.Name = "tbStr2";
this.tbStr2.Size = new System.Drawing.Size(104, 20);
this.tbStr2.TabIndex = 3;
this.tbStr2.Text = "";
// 
// Label7
// 
this.Label7.Location = new System.Drawing.Point(8, 58);
this.Label7.Name = "Label7";
this.Label7.Size = new System.Drawing.Size(40, 16);
this.Label7.TabIndex = 2;
this.Label7.Text = "str2:";
// 
// tbStr1
// 
this.tbStr1.Location = new System.Drawing.Point(48, 24);
this.tbStr1.Name = "tbStr1";
this.tbStr1.Size = new System.Drawing.Size(104, 20);
this.tbStr1.TabIndex = 1;
this.tbStr1.Text = "";
// 
// Label8
// 
this.Label8.Location = new System.Drawing.Point(8, 27);
this.Label8.Name = "Label8";
this.Label8.Size = new System.Drawing.Size(40, 16);
this.Label8.TabIndex = 0;
this.Label8.Text = "str1:";
// 
// GroupBox1
// 
this.GroupBox1.Controls.Add(this.tblreal1);
this.GroupBox1.Controls.Add(this.Label6);
this.GroupBox1.Controls.Add(this.tbUsint1);
this.GroupBox1.Controls.Add(this.Label4);
this.GroupBox1.Controls.Add(this.tbDint1);
this.GroupBox1.Controls.Add(this.Label2);
this.GroupBox1.Controls.Add(this.tbBool1);
this.GroupBox1.Controls.Add(this.Label1);
this.GroupBox1.Location = new System.Drawing.Point(8, 8);
this.GroupBox1.Name = "GroupBox1";
this.GroupBox1.Size = new System.Drawing.Size(168, 152);
this.GroupBox1.TabIndex = 7;
this.GroupBox1.TabStop = false;
this.GroupBox1.Text = "Primitive Types";
// 
// tblreal1
// 
this.tblreal1.Location = new System.Drawing.Point(48, 120);
this.tblreal1.Name = "tblreal1";
this.tblreal1.Size = new System.Drawing.Size(104, 20);
this.tblreal1.TabIndex = 11;
this.tblreal1.Text = "";
// 
// Label6
// 
this.Label6.Location = new System.Drawing.Point(8, 120);
this.Label6.Name = "Label6";
this.Label6.Size = new System.Drawing.Size(40, 16);
this.Label6.TabIndex = 10;
this.Label6.Text = "lreal1:";
// 
// tbUsint1
// 
this.tbUsint1.Location = new System.Drawing.Point(48, 88);
this.tbUsint1.Name = "tbUsint1";
this.tbUsint1.Size = new System.Drawing.Size(104, 20);
this.tbUsint1.TabIndex = 7;
this.tbUsint1.Text = "";
// 
// Label4
// 
this.Label4.Location = new System.Drawing.Point(8, 88);
this.Label4.Name = "Label4";
this.Label4.Size = new System.Drawing.Size(40, 16);
this.Label4.TabIndex = 6;
this.Label4.Text = "usint1:";
// 
// tbDint1
// 
this.tbDint1.Location = new System.Drawing.Point(48, 58);
this.tbDint1.Name = "tbDint1";
this.tbDint1.Size = new System.Drawing.Size(104, 20);
this.tbDint1.TabIndex = 3;
this.tbDint1.Text = "";
// 
// Label2
// 
this.Label2.Location = new System.Drawing.Point(8, 58);
this.Label2.Name = "Label2";
this.Label2.Size = new System.Drawing.Size(40, 16);
this.Label2.TabIndex = 2;
this.Label2.Text = "dint1:";
// 
// tbBool1
// 
this.tbBool1.Location = new System.Drawing.Point(48, 27);
this.tbBool1.Name = "tbBool1";
this.tbBool1.Size = new System.Drawing.Size(104, 20);
this.tbBool1.TabIndex = 1;
this.tbBool1.Text = "";
// 
// Label1
// 
this.Label1.Location = new System.Drawing.Point(8, 27);
this.Label1.Name = "Label1";
this.Label1.Size = new System.Drawing.Size(40, 16);
this.Label1.TabIndex = 0;
this.Label1.Text = "bool1:";
// 
// Form1
// 
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(592, 302);
this.Controls.Add(this.btnDeleteNotifications);
this.Controls.Add(this.btnAddNotifications);
this.Controls.Add(this.btnWrite);
this.Controls.Add(this.btnRead);
this.Controls.Add(this.GroupBox3);
this.Controls.Add(this.GroupBox2);
this.Controls.Add(this.GroupBox1);
this.Name = "Form1";
this.Text = "Sample07";
this.Closing += new System.ComponentModel.CancelEventHandler(this.Form1_Closing);
this.Load += new System.EventHandler(this.Form1_Load);
this.GroupBox3.ResumeLayout(false);
this.GroupBox2.ResumeLayout(false);
this.GroupBox1.ResumeLayout(false);
this.ResumeLayout(false);

}
#endregion

/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main() 
{
Application.Run(new Form1());
}

private void Form1_Load(object sender, System.EventArgs e)
{
adsClient = new TcAdsClient();
notificationHandles = new ArrayList();
try
{
adsClient.Connect(851);
adsClient.AdsNotificationEx+=new AdsNotificationExEventHandler(adsClient_AdsNotificationEx);
btnDeleteNotifications.Enabled = false;
//create handles for the PLC variables;
hbool1 = adsClient.CreateVariableHandle("MAIN.bool1");
hdint1 = adsClient.CreateVariableHandle("MAIN.dint1");
husint1 = adsClient.CreateVariableHandle("MAIN.usint1");
hlreal1 = adsClient.CreateVariableHandle("MAIN.lreal1");
hstr1 = adsClient.CreateVariableHandle("MAIN.str1");
hstr2 = adsClient.CreateVariableHandle("MAIN.str2");
hcomplexStruct = adsClient.CreateVariableHandle("MAIN.ComplexStruct1");
}
catch(Exception ex)
{
MessageBox.Show(ex.Message);
}
}

private void Form1_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
adsClient.Dispose();
}

private void btnRead_Click(object sender, System.EventArgs e)
{
try
{           
                //read by handle
//the second parameter specifies the type of the variable
tbDint1.Text = adsClient.ReadAny(hdint1, typeof(int)).ToString();
tbUsint1.Text = adsClient.ReadAny(husint1, typeof(Byte)).ToString();
tbBool1.Text = adsClient.ReadAny(hbool1, typeof(Boolean)).ToString();
tblreal1.Text = adsClient.ReadAny(hlreal1, typeof(Double)).ToString();
//with strings one has to additionally pass the number of characters
//specified in the PLC project(default 80). 
//This value is passed is an int array.             
tbStr1.Text = adsClient.ReadAny(hstr1, typeof(String), new int[] {80}).ToString();
tbStr2.Text = adsClient.ReadAny(hstr2, typeof(String), new int[] {5}).ToString();
FillStructControls((ComplexStruct)adsClient.ReadAny(hcomplexStruct, typeof(ComplexStruct)));
}
catch(Exception ex)
{
MessageBox.Show(ex.Message);
}
}

private void btnWrite_Click(object sender, System.EventArgs e)
{
try
{
//write by handle
//the second parameter is the object to be written to the PLC variable
adsClient.WriteAny(hdint1, int.Parse(tbDint1.Text));
adsClient.WriteAny(husint1, Byte.Parse(tbUsint1.Text));
adsClient.WriteAny(hbool1, Boolean.Parse(tbBool1.Text));
adsClient.WriteAny(hlreal1, Double.Parse(tblreal1.Text));
//with strings one has to additionally pass the number of characters
//the variable has in the PLC(default 80).            
adsClient.WriteAny(hstr1, tbStr1.Text, new int[] {80});
adsClient.WriteAny(hstr2, tbStr2.Text, new int[] {5});
adsClient.WriteAny(hcomplexStruct, GetStructFromControls()) ;
}
catch(Exception ex)
{
MessageBox.Show(ex.Message);
}
}

private void btnAddNotifications_Click(object sender, System.EventArgs e)
{
notificationHandles.Clear();
try
{
//register notification            
notificationHandles.Add(adsClient.AddDeviceNotificationEx("MAIN.dint1", AdsTransMode.OnChange, 100, 0, tbDint1, typeof(int)));
notificationHandles.Add(adsClient.AddDeviceNotificationEx("MAIN.usint1", AdsTransMode.OnChange, 100, 0, tbUsint1, typeof(Byte)));
notificationHandles.Add(adsClient.AddDeviceNotificationEx("MAIN.bool1", AdsTransMode.OnChange, 100, 0, tbBool1, typeof(Boolean)));
notificationHandles.Add(adsClient.AddDeviceNotificationEx("MAIN.lreal1", AdsTransMode.OnChange, 100, 0, tblreal1, typeof(Double)));
notificationHandles.Add(adsClient.AddDeviceNotificationEx("MAIN.str1", AdsTransMode.OnChange, 100, 0, tbStr1, typeof(String), new int[] {80}));
notificationHandles.Add(adsClient.AddDeviceNotificationEx("MAIN.str2", AdsTransMode.OnChange, 100, 0, tbStr2, typeof(String), new int[] {5}));
notificationHandles.Add(adsClient.AddDeviceNotificationEx("MAIN.complexStruct1", AdsTransMode.OnChange, 100, 0, tbDint1, typeof(ComplexStruct)));
}
catch(Exception ex)
{
MessageBox.Show(ex.Message);
}
btnDeleteNotifications.Enabled = true;
btnAddNotifications.Enabled = false;
}

private void btnDeleteNotifications_Click(object sender, System.EventArgs e)
{
//delete registered notifications.
try
{
foreach(int handle in notificationHandles)
adsClient.DeleteDeviceNotification(handle);
}
catch(Exception ex)
{
MessageBox.Show(ex.Message);
}
notificationHandles.Clear();
btnAddNotifications.Enabled = true;
btnDeleteNotifications.Enabled = false;
}

private void adsClient_AdsNotificationEx(object sender, AdsNotificationExEventArgs e)
{  
TextBox textBox = (TextBox)e.UserData;
Type type = e.Value.GetType();
if(type == typeof(string) || type.IsPrimitive)
textBox.Text = e.Value.ToString();
else if(type == typeof(ComplexStruct))
FillStructControls((ComplexStruct)e.Value);        
}

private void FillStructControls(ComplexStruct structure)
{
tbComplexStruct_IntVal.Text = structure.intVal.ToString();
tbComplexStruct_dintArr.Text = String.Format("{0:d}, {1:d}, {2:d}, {3:d}", structure.dintArr[0],
structure.dintArr[1], structure.dintArr[2], structure.dintArr[3]);
tbComplexStruct_boolVal.Text = structure.boolVal.ToString();
tbComplexStruct_ByteVal.Text = structure.byteVal.ToString();
tbComplexStruct_stringVal.Text = structure.stringVal;
tbComplexStruct_SimpleStruct1_lrealVal.Text = structure.simpleStruct1.lrealVal.ToString();
tbComplexStruct_SimpleStruct_dintVal.Text = structure.simpleStruct1.dintVal1.ToString();
}

private ComplexStruct GetStructFromControls()
{
ComplexStruct structure = new ComplexStruct();
String[] stringArr = tbComplexStruct_dintArr.Text.Split(new char[] {','});
structure.intVal = short.Parse(tbComplexStruct_IntVal.Text);
for(int i=0; i<stringArr.Length; i++)
structure.dintArr[i] = int.Parse(stringArr[i]);
        
structure.boolVal = Boolean.Parse(tbComplexStruct_boolVal.Text);
structure.byteVal = Byte.Parse(tbComplexStruct_ByteVal.Text);
structure.stringVal = tbComplexStruct_stringVal.Text;
structure.simpleStruct1.dintVal1 = int.Parse(tbComplexStruct_SimpleStruct_dintVal.Text);
structure.simpleStruct1.lrealVal = double.Parse(tbComplexStruct_SimpleStruct1_lrealVal.Text);
return structure;
}
}

[StructLayout(LayoutKind.Sequential, Pack=0)]
public class SimpleStruct
{
public double lrealVal;
public int dintVal1;
}

[StructLayout(LayoutKind.Sequential, Pack=0)]
public class ComplexStruct
{
public short intVal;
//specifies how .NET should marshal the array
//SizeConst specifies the number of elements the array has.
[MarshalAs(UnmanagedType.ByValArray, SizeConst=4)]
public int[] dintArr = new int[4];
[MarshalAs(UnmanagedType.I1)]
public bool boolVal;
public byte byteVal;
//specifies how .NET should marshal the string
//SizeConst specifies the number of characters the string has.
//'(inclusive the terminating null ). 
[MarshalAs(UnmanagedType.ByValTStr, SizeConst=6)]
public string stringVal = "";
public SimpleStruct simpleStruct1 =new SimpleStruct();
}
}

Answer 1

i have a code written in c++ i want to convert it into vb code can any one help

There are converters available that will do the job, generally with a very high level of accuracy.  For instance:
https://www.tangiblesoftwaresolutions.com/product_details/cplusplus_to_vb_converter_details.html

I would recommend that you use the designer to redesign the form instead of converting the designer code, and check carefully for the language that it was written in before selecting your code converter.

Answer 2

Your code is not C++ but C#.

However, only partially. 

The most of the code is in the designer part of it. 

Yourprogram.designer.cs

For the rest use the same link as acamar shows but than with for Instant VB

https://www.tangiblesoftwaresolutions.com/product_details/csharp-to-vb-converter.html

Be aware you need for this the whole project. 

---

Success
Cor