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#region License
//
// The Open Toolkit Library License
//
// Copyright (c) 2006 - 2009 the Open Toolkit library.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do
// so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
//
#endregion

#region Using Directives

using System;
using System.Collections.Generic;
using System.Windows.Forms;
using System.Threading;
using System.Drawing;

using OpenTK;
using OpenTK.Graphics;
using OpenTK.Graphics.ES20;

#endregion

namespace Examples.Tutorial
{
    [Example("Simple ES 2.0", ExampleCategory.OpenGLES, "2.0", Documentation = "SimpleES20Window")]
    public class SimpleES20Window : GameWindow
    {
        #region Constructor

        public SimpleES20Window()
            : base(800, 600, new GraphicsMode(16, 16), "", GameWindowFlags.Default, DisplayDevice.Default, 2, 0, GraphicsContextFlags.Embedded)
        { }

        #endregion

        #region OnLoad

        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);

            Color4 color = Color4.MidnightBlue;
            GL.ClearColor(color.R, color.G, color.B, color.A);
            GL.Enable(EnableCap.DepthTest);
        }

        #endregion

        #region OnResize

        /// <summary>
        /// Called when the user resizes the window.
        /// </summary>
        /// <param name="e">Contains the new width/height of the window.</param>
        /// <remarks>
        /// You want the OpenGL viewport to match the window. This is the place to do it!
        /// </remarks>
        protected override void OnResize(EventArgs e)
        {
            GL.Viewport(0, 0, Width, Height);
        }

        #endregion

        #region OnUpdateFrame

        /// <summary>
        /// Prepares the next frame for rendering.
        /// </summary>
        /// <remarks>
        /// Place your control logic here. This is the place to respond to user input,
        /// update object positions etc.
        /// </remarks>
        protected override void OnUpdateFrame(FrameEventArgs e)
        {
            if (Keyboard[OpenTK.Input.Key.Escape])
            {
                this.Exit();
                return;
            }
        }

        #endregion

        #region OnRenderFrame

        /// <summary>
        /// Place your rendering code here.
        /// </summary>
        protected override void OnRenderFrame(FrameEventArgs e)
        {
            GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);

            this.SwapBuffers();
        }

        #endregion

        #region private void DrawCube()

        private void DrawCube()
        {
        }

        #endregion

        #region public static void Main()

        /// <summary>
        /// Entry point of this example.
        /// </summary>
        [STAThread]
        public static void Main()
        {
            using (SimpleES20Window example = new SimpleES20Window())
            {
                Utilities.SetWindowTitle(example);
                example.Run(30.0, 0.0);
            }
        }

        #endregion
    }
}