private void QRCodeScanner_Error(object sender, JeffWilcox.Controls.ScanFailureEventArgs e)
{
MessageBox.Show(e.Exception.Message);
}
private void OnScanError(object sender, ScanFailureEventArgs e)
{
Dispatcher.BeginInvoke(() =>
{
MessageBox.Show("There was a problem scanning the code.", "QR Code #FAIL", MessageBoxButton.OK);
});
}