MonoGameUi.Control.OnDraw C# (CSharp) Method

        protected virtual void OnDraw(SpriteBatch batch, Rectangle controlArea, GameTime gameTime)
        {
            // Background-Bereich ermitteln und zeichnen
            Rectangle controlWithMargin = new Rectangle(
               controlArea.X + Margin.Left,
               controlArea.Y + Margin.Top,
               controlArea.Width - Margin.Left - Margin.Right,
               controlArea.Height - Margin.Bottom - Margin.Top);
            OnDrawBackground(batch, controlWithMargin, gameTime, AbsoluteAlpha);

            // Content-Bereich ermitteln und zeichnen
            Rectangle controlWithPadding = new Rectangle(
                controlWithMargin.X + Padding.Left,
                controlWithMargin.Y + Padding.Top,
                controlWithMargin.Width - Padding.Left - Padding.Right,
                controlWithMargin.Height - Padding.Bottom - Padding.Top);
            OnDrawContent(batch, controlWithPadding, gameTime, AbsoluteAlpha);

            // Fokus-Frame
            if (Focused == TreeState.Active)
                OnDrawFocusFrame(batch, controlWithMargin, gameTime, AbsoluteAlpha);
        }