Visual C++ "Windows Forms Application"

#pragma once

namespace My123321
{
    using namespace System;
    using namespace System::ComponentModel;
    using namespace System::Collections;
    using namespace System::Windows::Forms;
    using namespace System::Data;
    using namespace System::Drawing;

    /// <summary>
    /// Summary for Form1
    /// </summary>
    public ref class Form1 : public System::Windows::Forms::Form
    {
    public:
        Form1(void)
        {
            InitializeComponent();
            //
            //TODO: Add the constructor code here
            //
        }

    protected:
        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        ~Form1()
        {
            if (components)
            {
                delete components;
            }
        }
    private: System::Windows::Forms::Button^  button1;
    protected: 
    private: System::Windows::Forms::Label^  label1;
    private: System::Windows::Forms::TextBox^  textBox1;

    private:
        /// <summary>
        /// Required designer variable.
        /// </summary>
        System::ComponentModel::Container ^components;

#pragma 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>
        void InitializeComponent(void)
        {
            System::ComponentModel::ComponentResourceManager^  resources = (gcnew System::ComponentModel::ComponentResourceManager(Form1::typeid));
            this->button1 = (gcnew System::Windows::Forms::Button());
            this->label1 = (gcnew System::Windows::Forms::Label());
            this->textBox1 = (gcnew System::Windows::Forms::TextBox());
            this->SuspendLayout();
            // 
            // button1
            // 
            this->button1->Cursor = System::Windows::Forms::Cursors::Hand;
            this->button1->Location = System::Drawing::Point(260, 69);
            this->button1->Name = L"button1";
            this->button1->Size = System::Drawing::Size(75, 23);
            this->button1->TabIndex = 0;
            this->button1->Text = L"&Change";
            this->button1->UseVisualStyleBackColor = true;
            this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click);
            // 
            // label1
            // 
            this->label1->AutoSize = true;
            this->label1->Font = (gcnew System::Drawing::Font(L"Arial", 9.75F, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point, 
                static_cast<System::Byte>(0)));
            this->label1->Location = System::Drawing::Point(12, 18);
            this->label1->Name = L"label1";
            this->label1->Size = System::Drawing::Size(317, 32);
            this->label1->TabIndex = 1;
            this->label1->Text = L"This application will change your nickname in game.\r\nThe nickname must not be hig" 
                L"her than 12 characters.";
            // 
            // textBox1
            // 
            this->textBox1->Location = System::Drawing::Point(15, 71);
            this->textBox1->MaxLength = 12;
            this->textBox1->Name = L"textBox1";
            this->textBox1->Size = System::Drawing::Size(239, 20);
            this->textBox1->TabIndex = 2;
            // 
            // Form1
            // 
            this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
            this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
            this->ClientSize = System::Drawing::Size(345, 104);
            this->Controls->Add(this->textBox1);
            this->Controls->Add(this->label1);
            this->Controls->Add(this->button1);
            this->Cursor = System::Windows::Forms::Cursors::Arrow;
            this->Icon = (cli::safe_cast<System::Drawing::Icon^  >(resources->GetObject(L"$this.Icon")));
            this->MaximizeBox = false;
            this->MaximumSize = System::Drawing::Size(361, 142);
            this->MinimizeBox = false;
            this->MinimumSize = System::Drawing::Size(361, 142);
            this->Name = L"Form1";
            this->ShowIcon = false;
            this->SizeGripStyle = System::Windows::Forms::SizeGripStyle::Hide;
            this->StartPosition = System::Windows::Forms::FormStartPosition::CenterScreen;
            this->Text = L"Nickname Changer";
            this->ResumeLayout(false);
            this->PerformLayout();

        }
    #pragma endregion
    public: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) {
                 
             }
    };
}

#include <Windows.h>
MessageBox(NULL, "message", "msg", MB_OK);