Avoid flickering in Windows Forms

I often run in to flickering problems when redrawing a form in Windows. This class is the solution:

    class DrawingControl
    {
        [DllImport("user32.dll")]
        private static extern int SendMessage(IntPtr hWnd, Int32 wMsg, bool wParam, Int32 lParam);

        private const int WM_SETREDRAW = 11;

        public static void SuspendDrawing(Control parent)
        {
            SendMessage(parent.Handle, WM_SETREDRAW, false, 0);
        }

        public static void ResumeDrawing(Control parent)
        {
            SendMessage(parent.Handle, WM_SETREDRAW, true, 0);
            parent.Refresh();
        }
    }

Solution found on StackOwerflow

/af