用头文件开始一个新项目

我正在上c++课，并得到了我的第一个项目。在课堂上，教授只讲句法、语法等。他从不谈论如何使用Visual Studio。他给我们发了一个没有任何解释的头文件，并希望我们在项目中使用它。我不太确定如何开始使用这个文件。我试着创建一个空的Visual c++项目，添加这个文件并运行它，但对于一个，到处都有红色下划线错误，两个，VS说它找不到可执行文件。如果有人可以帮助我获得VS和/或我的项目设置，我可以负责制作程序(刚刚完成了在Java中编写相同的程序)。

这是他发给我们的头文件。从外表来看，他有点邋遢。

#pragma once
namespace control2 {
    using namespace System;
    using namespace System::IO; // added by Zhang
    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
    ///
    /// WARNING: If you change the name of this class, you will need to change the
    ///          'Resource File Name' property for the managed resource compiler tool
    ///          associated with all .resx files this class depends on.  Otherwise,
    ///          the designers will not be able to interact properly with localized
    ///          resources associated with this form.
    /// </summary>
    public ref class Form1 : public System::Windows::Forms::Form
    {
    public:
        Form1(void)
        {
            InitializeComponent();
            //
            //TODO: Add the constructor code here
            //
            // added by Zhang
            StreamReader ^sr = gcnew StreamReader("control.txt");
            this->choice=Int32::Parse(sr->ReadLine());
            sr->Close();
        }
    protected:
        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        ~Form1()
        {
            if (components)
            {
                delete components;
            }
        }
    private:
        /// <summary>
        /// Required designer variable.
        /// </summary>
        System::ComponentModel::Container ^components;
        int choice;
#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)
        {
            this->SuspendLayout();
            // 
            // Form1
            // 
            this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
            this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
            this->ClientSize = System::Drawing::Size(292, 266);
            this->Name = L"Form1";
            this->Text = L"CS351";
            this->Paint += gcnew System::Windows::Forms::PaintEventHandler(this, &Form1::Form1_Paint);
            this->ResumeLayout(false);
        }
#pragma endregion
    private: System::Void Form1_Paint(System::Object^  sender, System::Windows::Forms::PaintEventArgs^  e) {
              Graphics ^g = e->Graphics;
              // g->Clear(BackColor);
              // g->Clear(Color::Red);
              for ( int y = 0; y < 10; y++ ) {
                 // pick the shape based on the user's choice
                 switch ( choice )
                 {
                    case 1: // draw rectangles
                        g->DrawRectangle(Pens::Black, 10 + i * 10, 10 + i * 10, 50 + i * 10, 50 + i * 10 );
                       break;
                    case 2: // draw ovals
                       // g->DrawEllipse(Pens::Black, 10 + i * 10, 10 + i * 10, 50 + i * 10, 50 + i * 10 );
                       g->DrawArc(Pens::Black, 10 + i * 10, 10 + i * 10, 50 + i * 10, 50 + i * 10, 0, 360 );
                       break;
                    case 3: // fill rectangles
                        g->FillRectangle(Brushes::Red, 10 + i * 10, 10 + i * 10, 50 + i * 10, 50 + i * 10 );
                       break;
                    case 4: // fill ovals
                       // g->FillEllipse(gcnew SolidBrush(Color::Red), 10 + i * 10, 10 + i * 10, 50 + i * 10, 50 + i * 10 );
                       g->FillPie(gcnew SolidBrush(Color::Red), 10 + i * 10, 10 + i * 10, 50 + i * 10, 50 + i * 10, 0, 360 );
                       break;
                    default: // draw lines
                        g->DrawLine(Pens::Black, 10 + i * 10, 60 + i * 20, 60 + i * 20, 10 + i * 10 );
                       break;
                 } // end switch
              } // end for
              choice=(choice+1)%5;
             }
    };
}