void button_Click(object sender, TomShane.Neoforce.Controls.EventArgs e)
        {
            InitialEngineDescription ini = engine.GetEngineDescription();

            ini.BackBufferWidth           = Width;
            ini.BackBufferHeight          = Height;
            ini.isFullScreen              = fullscreen;
            ini.UseVerticalSyncronization = verticalsync;
            ini.isMultiSampling           = multisampling;
            ini.useMipMapWhenPossible     = mipmap;
            if (anisotropic)
            {
                ini.DefaultFiltering = Microsoft.Xna.Framework.Graphics.SamplerState.AnisotropicWrap;
            }
            else
            {
                ini.DefaultFiltering = Microsoft.Xna.Framework.Graphics.SamplerState.LinearWrap;
            }
            engine.ApplyEngineDescription(ref ini);
        }