private void OnEnrollCompleted(IAsyncResult r)
{
try
{
if (InvokeRequired)
{
BeginInvoke(new AsyncCallback(OnEnrollCompleted), r);
}
else
{
var task = _biometricClient.EndPerformTask(r);
var status = task.Status;
// Check if extraction was canceled
if (status == NBiometricStatus.Canceled)
{
return;
}
if (status == NBiometricStatus.Ok)
{
lblQuality.Text = $"Quality: {_subjectFinger.Objects[0].Quality}";
_template = _subject.Save();
ShowMessage(@"Please wait while your fingerprint is being processed...");
UpdateStateToParent(ApplicationController.State.Captured_Good);
}
else
{
lblQuality.Text = string.Empty;
ShowMessage(@"Fingerprint image is of low quality");
UpdateStateToParent(ApplicationController.State.Captured_Bad);
}
}
}
catch (Exception ex)
{
ShowMessage(string.Format("Extraction error: {0}", ex.Message));
Logger.logToFile(ex, AppSettings.ErrorLogPath);
}
}
private void OnEnrollCompleted(IAsyncResult r)
{
if (InvokeRequired)
{
BeginInvoke(new AsyncCallback(OnEnrollCompleted), r);
}
else
{
var task = _biometricClient.EndPerformTask(r);
var status = task.Status;
// Check if extraction was canceled
if (status == NBiometricStatus.Canceled)
{
return;
}
if (status == NBiometricStatus.Ok)
{
lblQuality.Text = $"Quality: {_subjectFinger.Objects[0].Quality}";
if (_nfView.Finger.Image != null)
{
_nfView.Finger.Image.Dispose();
_nfView.Finger.Image = null;
}
if (_nfView.Finger.Objects[0].Template != null)
{
_nfView.Finger.Objects[0].Template.Dispose();
_nfView.Finger.Objects[0].Template = null;
}
lblQuality.Text = string.Empty;
OnIsScanningChanged(false);
_template = _subject.Save();
_nfView.Finger.Objects[0].Template = _subject.Fingers[0].Objects[0].Template;
SaveTemplateForVerification(_template);
SaveUserIdForVerification(textBoxIDNumber.Text);
UpdateStateToParent(ApplicationController.State.Captured_Good);
NImage image = _subjectFinger.Image;
if (image == null)
{
return;
}
_nfView.Width = (int)image.Width;
_nfView.Height = (int)image.Height;
_nfView.Finger.Image = image;
_nfView.Refresh();
}
else
{
MessageBox.Show($"Fingerprint image is of low quality OR The template was not extracted: {status}.", Text, MessageBoxButtons.OK, MessageBoxIcon.Error);
_subject = null;
_subjectFinger = null;
}
}
}