public void RenderFrame(double deltaTime, Matrix4 projection, Matrix4 view, IGameWindow gameWindow, ViewContainer rootView, int width, int height, float cameraZ) { //if there is no root view just no render anything if (rootView == null) { return; } //measure only if size has changed if (lastWidth != width || lastHeight != height) { rootView.Mesure(width, height, Values.MeasureSpecMode.Exactly); } else { rootView.Check(); } //render view rootView.GLDraw(projection, view, new RectangleF(0, 0, 1000, 1000), width, height, cameraZ); var mouseX = OpenTK.Input.Mouse.GetCursorState().X - gameWindow.X; var mouseY = OpenTK.Input.Mouse.GetCursorState().Y - gameWindow.Y; Console.WriteLine("X: {0}, Y: {1}", mouseX, mouseY); lastWidth = width; lastHeight = height; }