private void AFCPanel_Resize(object sender, EventArgs e) { if (AFCPanel.Width == 0 || AFCPanel.Height == 0) { return; } Bitmap memBmp; memBmp = new Bitmap(AFCPanel.Width, AFCPanel.Height); Graphics clientDC = AFCPanel.CreateGraphics(); IntPtr hdc = clientDC.GetHdc(); IntPtr memdc = Win32Support.CreateCompatibleDC(hdc); Win32Support.SelectObject(memdc, memBmp.GetHbitmap()); memDC = Graphics.FromHdc(memdc); clientDC.ReleaseHdc(hdc); UpdateUI(); }