Imports System.Windows.Forms

Public Class Form1
    Inherits Form

    Public Sub New()
        Dim tabText As String() = {"tabPage1", "tabPage2"}
        Dim tabControl1 As New TabControl()
        Dim tabPage1 As New TabPage(tabText(0))
        Dim tabPage2 As New TabPage(tabText(1))

        ' Sets the tabs to appear as buttons.
        tabControl1.Appearance = TabAppearance.Buttons

        tabControl1.Controls.AddRange(New TabPage() {tabPage1, tabPage2})
        Controls.Add(tabControl1)
    End Sub

    Shared Sub Main()
        Application.Run(New Form1())
    End Sub
End Class

using System.Windows.Forms;

public class Form1 : Form
{
    public Form1()
    {
        string[] tabText = {"tabPage1", "tabPage2"};
        TabControl tabControl1 = new TabControl();
        TabPage tabPage1 = new TabPage(tabText[0]);
        TabPage tabPage2 = new TabPage(tabText[1]);

        // Sets the tabs to appear as buttons.
        tabControl1.Appearance = TabAppearance.Buttons;

        tabControl1.Controls.AddRange(new TabPage[] {tabPage1, tabPage2});
        Controls.Add(tabControl1);
    }

    static void Main() 
    {
        Application.Run(new Form1());
    }
}

using namespace System;
using namespace System::Windows::Forms;
public ref class Form1: public Form
{
public:
   Form1()
   {
      array<String^>^tabText = {"tabPage1","tabPage2"};
      TabControl^ tabControl1 = gcnew TabControl;
      TabPage^ tabPage1 = gcnew TabPage( tabText[ 0 ] );
      TabPage^ tabPage2 = gcnew TabPage( tabText[ 1 ] );

      // Sets the tabs to appear as buttons.
      tabControl1->Appearance = TabAppearance::Buttons;
      array<TabPage^>^tabPageArray = {tabPage1,tabPage2};
      tabControl1->Controls->AddRange( tabPageArray );
      Controls->Add( tabControl1 );
   }

};

int main()
{
   Application::Run( gcnew Form1 );
}