private void MainForm_Load(object sender, EventArgs e)
{
loadPortSelector();
setPortCloseControls();
GPlotPicture.Image = GPlotBitmap;
GPlotGraphics = Graphics.FromImage(GPlotBitmap);
GPlotPenM = new Pen(Color.White, 3F);
GPlotPenP = new Pen(Color.DarkGray, 1F);
MainForm_ResizeEnd(sender, e);
}