private void FMain_Load(object sender, EventArgs e)
{
Work = new Worker();
string IdStr = Work.CompId.ToString("D").ToUpperInvariant();
byte[] buf = Encoding.UTF8.GetBytes(IdStr);
QrBox.Image = QRCode.CreateQR(buf, QrVersion, QrLevel, -1, QrSize);
Text = IdStr;
Work.Start();
}