public BiometricTestWindow()
{
InitializeComponent();
_biometrics = new Biometrics();
_biometrics.IdentifyFailed += _biometrics_IdentifyFailed;
_biometrics.IdentifySuccess += _biometrics_IdentifySuccess;
_session = _biometrics.OpenSession();
}
public BiometricTestWindow()
{
InitializeComponent();
_biometrics = new Biometrics();
_biometrics.IdentifyFailed += _biometrics_IdentifyFailed;
_biometrics.IdentifySuccess += _biometrics_IdentifySuccess;
_session = _biometrics.OpenSession();
}
public void Run()
{
_biometrics.IdentifySuccess += IdentifySuccess;
_biometrics.IdentifyFailed += IdentifyFailed;
do
{
using (IBiometricSession session = _biometrics.OpenSession())
session.Wait();
} while (true);
}
void _biometrics_IdentifyFailed(object sender, AuthenticationFailedEventArgs e)
{
// See comment above...
Dispatcher.BeginInvoke(DispatcherPriority.ApplicationIdle,
new Action(() =>
{
Status.Text = "Failed";
UserName.Text = String.Empty;
_session.Close();
_session = _biometrics.OpenSession();
}));
}
void _biometrics_IdentifyFailed(object sender, AuthenticationFailedEventArgs e)
{
// See comment above...
Dispatcher.BeginInvoke(DispatcherPriority.ApplicationIdle,
new Action(() =>
{
Status.Text = "Failed";
UserName.Text = String.Empty;
_session.Close();
_session = _biometrics.OpenSession();
}));
}
void _biometrics_IdentifySuccess(object sender, AuthenticationSuccessEventArgs e)
{
// Must be dispatched! Because the session is only good for a single result,
// we need to close it and reopen another one for a subsequent scan. Closing
// and reopening the session must be done on the same thread that opened the
// session. Thus, we need to asynchronously dispatch back to the UI thread.
Dispatcher.BeginInvoke(DispatcherPriority.ApplicationIdle,
new Action(() =>
{
Status.Text = "Success";
UserName.Text = e.IdentityReference.ToString();
_session.Close();
_session = _biometrics.OpenSession();
}));
}
void _biometrics_IdentifySuccess(object sender, AuthenticationSuccessEventArgs e)
{
// Must be dispatched! Because the session is only good for a single result,
// we need to close it and reopen another one for a subsequent scan. Closing
// and reopening the session must be done on the same thread that opened the
// session. Thus, we need to asynchronously dispatch back to the UI thread.
Dispatcher.BeginInvoke(DispatcherPriority.ApplicationIdle,
new Action(() =>
{
Status.Text = "Success";
UserName.Text = e.IdentityReference.ToString();
_session.Close();
_session = _biometrics.OpenSession();
}));
}
