ZForge.Controls.HeaderPanel.OnResize C# (CSharp) Method

        protected override void OnResize(EventArgs e)
        {
            base.OnResize(e);
            // Invalidate none client area
            HeaderPanelNativeMethods.RedrawWindow(this.Handle, IntPtr.Zero, IntPtr.Zero,
                     0x0400/*RDW_FRAME*/ | 0x0100/*RDW_UPDATENOW*/ | 0x0001/*RDW_INVALIDATE*/);
        }