System.Windows.Forms.CommandBar.NotifyCustomDrawMenuBar C# (CSharp) Method

        private void NotifyCustomDrawMenuBar(ref Message m)
        {
            m.Result = (IntPtr) NativeMethods.CDRF_DODEFAULT;
            NativeMethods.LPNMTBCUSTOMDRAW tbcd = (NativeMethods.LPNMTBCUSTOMDRAW) m.GetLParam(typeof(NativeMethods.LPNMTBCUSTOMDRAW));

            bool hot = ((tbcd.nmcd.uItemState & NativeMethods.CDIS_HOT) != 0);
            bool selected = ((tbcd.nmcd.uItemState & NativeMethods.CDIS_SELECTED) != 0);

            if (hot || selected)
            {
                NativeMethods.RECT rect = tbcd.nmcd.rc;

                using (Graphics graphics = Graphics.FromHdc(tbcd.nmcd.hdc))
                {
                    graphics.FillRectangle(SystemBrushes.Highlight, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top);
                }

                using (TextGraphics textGraphics = new TextGraphics(tbcd.nmcd.hdc))
                {
                    Font font = this.Font;
                    string text = this.items[tbcd.nmcd.dwItemSpec].Text;
                    Size size = textGraphics.MeasureText(text, font);
                    Point point = new Point(rect.left + ((rect.right - rect.left - size.Width) / 2), rect.top + ((rect.bottom - rect.top - size.Height) / 2));
                    textGraphics.DrawText(text, point, font, SystemColors.HighlightText);
                }

                m.Result = (IntPtr) NativeMethods.CDRF_SKIPDEFAULT;
            }
        }