private void btScan_Click(object sender, EventArgs e) { if (polist.SelectedItems.Count > 0) { ScanLine scan = new ScanLine(polys[polist.SelectedIndex]); img = scan.Fill(Color.DarkGreen, (Bitmap)img); picBox.Image = img; ScanLine scanVP = new ScanLine(VPs[polist.SelectedIndex]); VP = scanVP.Fill(Color.DarkGreen, VP); ViewPort.Image = VP; } }