在C#中使用OpenGl？

using OpenTK;
using OpenTK.Graphics;
using OpenTK.Graphics.OpenGL;

public class MyOpenGLControl : GLControl
{
    public MyOpenGLControl(GraphicsMode mode) : base(mode)
    {
    }

    protected override void OnPaint(PaintEventArgs e)
    {
        base.OnPaint(e);
        GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
        GL.LoadIdentity();

        // 在此处添加OpenGL绘制代码

        SwapBuffers();
    }
}

MyOpenGLControl glControl = new MyOpenGLControl(new GraphicsMode(32, 24, 0, 4));
glControl.Dock = DockStyle.Fill;
this.Controls.Add(glControl);

GL.Begin(BeginMode.Triangles);
GL.Color3(Color.Red);
GL.Vertex2(0, 1);
GL.Color3(Color.Green);
GL.Vertex2(-1, -1);
GL.Color3(Color.Blue);
GL.Vertex2(1, -1);
GL.End();