/// <summary>
/// Reset state variables and start capture thread
/// </summary>
/// <returns>True if Capture successfully started. False otherwise.</returns>
public bool StartCapture()
{
_registrationInProgress = false;
_fingerCount = 0;
_createRegTemplate.Clear();
try
{
if (_capturer != null)
{
_capturer.StartCapture();
return(true);
}
}
catch (DPFP.Error.SDKException)
{
return(false);
}
return(false);
}
public void OnComplete(object Capture, string ReaderSerialNumber, DPFP.Sample Sample)
{
FingerPrintScanner.DrawPicture(pic_left, FingerPrintScanner.ConvertSampleToBitmap(Sample));
try
{
FeatureSet feature = FingerPrintScanner.ExtractFeatures(Sample, DataPurpose.Enrollment);
enroller.AddFeatures(feature);
FingerPrintScanner.MakeReport(txtStatus, String.Format("Fingerprint samples needed: {0}", enroller.FeaturesNeeded));
switch (enroller.TemplateStatus)
{
case Enrollment.Status.Failed:
FingerPrintScanner.MakeReport(txtStatus, String.Format("Fingerprint samples needed: {0}", enroller.FeaturesNeeded));
break;
case Enrollment.Status.Insufficient:
break;
case Enrollment.Status.Ready:
FingerPrintScanner.MakeReport(txtStatus, String.Format("Fingerprint samples needed: {0}", enroller.FeaturesNeeded));
capture.StopCapture();
FingerPrintScanner.MakeTemplate(enroller.Template, this);
break;
case Enrollment.Status.Unknown:
FingerPrintScanner.MakeReport(txtStatus, String.Format("Fingerprint samples needed: {0}", enroller.FeaturesNeeded));
break;
default:
FingerPrintScanner.MakeReport(txtStatus, String.Format("Fingerprint samples needed: {0}", enroller.FeaturesNeeded));
break;
}
}
catch (Exception)
{
FingerPrintScanner.MakeReport(txtStatus, String.Format("Fingerprint samples needed: {0}", enroller.FeaturesNeeded));
capture.StopCapture();
enroller.Clear();
capture.StartCapture();
}
}
protected override void Process(Sample sample)
{
base.Process(sample);
var features = ExtractFeatures(sample, DPFP.Processing.DataPurpose.Enrollment);
// Check quality of the sample and add to enroller if it's good
if (features == null)
{
return;
}
try
{
MakeReport("The fingerprint feature set was created.");
_enroller.AddFeatures(features); // Add feature set to template.
}
finally
{
UpdateStatus();
switch (_enroller.TemplateStatus)
{
case Enrollment.Status.Ready: // report success and stop capturing
SaveTemplate(_enroller.Template);
TryClose();
break;
case Enrollment.Status.Failed: // report failure and restart capturing
_enroller.Clear();
Stop();
UpdateStatus();
//OnTemplate(null);
Start();
break;
}
}
}
