Source/GLControl/GLControlFactory.cs

#region License
//
// The Open Toolkit Library License
//
// Copyright (c) 2006 - 2009 the Open Toolkit library, except where noted.
//
// 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

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using OpenTK.Graphics;

namespace OpenTK
{
    // Constructs GLControls.
    class GLControlFactory
    {
        public IGLControl CreateGLControl(GraphicsMode mode, Control control)
        {
            if (mode == null)
                throw new ArgumentNullException("mode");
            if (control == null)
                throw new ArgumentNullException("control");
            
            if (Configuration.RunningOnWindows) return new WinGLControl(mode, control);
            else if (Configuration.RunningOnMacOS) return new CarbonGLControl(mode, control);
            else if (Configuration.RunningOnX11) return new X11GLControl(mode, control);
            else throw new PlatformNotSupportedException();
        }
    }
}

---