protected override void OnResize(OpenToolkit.Windowing.Common.ResizeEventArgs e)
 {
     //base OnResize fixed the issue
     base.OnResize(e);
     GL.Viewport(0, 0, Size.X, Size.Y);
     Debug.WriteLine(Size.X + ": " + Size.Y);
 }
 private void TargetWindow_Resize(OpenToolkit.Windowing.Common.ResizeEventArgs obj)
 {
     Gl.Viewport(0, 0, obj.Width, obj.Height);
 }