public void EnumerateDevices()
{
String deviceList = BioNetACSDLL._GetUSNList();
foreach (var deviceName in deviceList.Split(','))
{
if (ActiveDevices.OfType <DeviceIB>().Any(dev => dev.name == deviceName))
{
continue;
}
var error = BioNetACSDLL._OpenNetAccessDeviceByUSN(deviceName);
if (error != 1)
{
break;
}
else
{
BioNetACSDLL._CloseNetAccessDevice();
}
DeviceIB device = new DeviceIB(deviceName);
ActiveDevices.Add(device);
}
List <DeviceIB> toDeleteList = new List <DeviceIB>();
foreach (var device in ActiveDevices.OfType <DeviceIB>())
{
bool toDelete = true;
foreach (var deviceName in deviceList.Split(','))
{
if (deviceName == device.name)
{
toDelete = false;
}
}
if (toDelete)
{
toDeleteList.Add(device);
device.Dispose();
}
}
foreach (var device in toDeleteList)
{
ActiveDevices.Remove(device);
}
}
private void deviceThread()
{
STATE state = STATE.IDLE;
COMMAND com = COMMAND.NONE;
byte[] image = null;
byte[][] resultFeat = null;
byte[][] imageStack = null;
byte[][] FingerFeat = null;
int firstEnrollCount = 0, secondEnrollCount = 0;
int status = 0;
BioNetACSDLL._AlgoInit();
Thread.Sleep(1000);
var error = BioNetACSDLL._OpenNetAccessDeviceByUSN(name);
if (error != 1)
{
throw new Exception("Can't open device");
}
int uniqueUsbKey = BioNetACSDLL._GetUSBKey();
int imageSize = BioNetACSDLL._GetImgSize();
int imageWidth = BioNetACSDLL._GetImgWidth();
int imageHeight = BioNetACSDLL._GetImgSize() / BioNetACSDLL._GetImgWidth();
FingerFeat = new byte[MAX_FEATURE][];
for (int i = 0; i < MAX_FEATURE; i++)
{
FingerFeat[i] = new byte[BioNetACSDLL._GetFeatSize()];
}
try
{
while (true)
{
cancelToken.Token.ThrowIfCancellationRequested();
if (state == STATE.IDLE)
{
com = queue.Take(cancelToken.Token);
}
else
{
// non blocking take
if (queue.Count > 0)
{
com = queue.Take();
}
}
switch (com)
{
case COMMAND.LIVECAPTURE_START:
state = STATE.TEST;
break;
case COMMAND.SINGLECAPTURE_START:
state = STATE.GETSINGLE;
break;
case COMMAND.ENROLLMENT_START:
state = STATE.GETFINGER_1;
resultFeat = new byte[2][];
for (int i = 0; i < 2; i++)
{
resultFeat[i] = new byte[BioNetACSDLL._GetFeatSize()];
}
imageStack = new byte[ENROLL_IMAGES * 2][];
for (int i = 0; i < ENROLL_IMAGES * 2; i++)
{
imageStack[i] = new byte[imageSize];
}
firstEnrollCount = 0;
secondEnrollCount = 0;
resultBios.Clear();
break;
case COMMAND.LIVECAPTURE_STOP:
case COMMAND.SINGLECAPTURE_STOP:
case COMMAND.ENROLLMENT_STOP:
state = STATE.IDLE;
break;
}
com = COMMAND.NONE;
if (uniqueUsbKey != BioNetACSDLL._GetUSBKey())
{
if (state != STATE.OFFLINE)
{
state = STATE.OFFLINE;
Ambassador.AddMessage(new MSignal(this, MSignal.SIGNAL.DEVICE_FAILURE));
}
}
switch (state)
{
case STATE.TEST:
image = new byte[imageSize];
status = BioNetACSDLL._GetNetAccessImage(image);
switch (status)
{
// not connected
case -1:
state = STATE.OFFLINE;
SendBaseMessage("Scanner is not connected");
break;
case 0:
SendBaseMessage("Please, touch the scanner");
break;
default:
break;
}
OnBiometricsCaptured(new FingerImageIB(image,imageWidth,imageHeight));
break;
case STATE.GETSINGLE:
SendBaseMessage("Please, touch the scanner");
image = new byte[imageSize];
status = BioNetACSDLL._GetNetAccessImage(image);
switch (status)
{
// not connected
case -1:
SendPopUpMessage("Scanner is not connected");
break;
case 0:
break;
case 1:
int qual = BioNetACSDLL._GetIBQualityScore(image);
if (qual > NEEDED_QUALITY)
{
goto default;
}
SendPopUpMessage("Image quality " + qual + " not enough, keep finger on scanner");
OnBiometricsCaptured(new FingerImageIB(image,imageWidth,imageHeight));
break;
default:
OnSingleCaptured(new FingerImageIB(image,imageWidth,imageHeight));
state = STATE.LIFTSINGLE;
break;
}
break;
case STATE.LIFTSINGLE:
image = new byte[imageSize];
status = BioNetACSDLL._GetNetAccessImage(image);
BioNetACSDLL._ControlTOUCH(false);
switch (status)
{
// not connected
case -1:
SendPopUpMessage("Scanner is not connected");
break;
case 0:
state = STATE.GETSINGLE;
break;
default:
//SendPopUpMessage("Please, remove finger from the scanner");
break;
}
break;
case STATE.GETFINGER_1:
image = new byte[imageSize];
state = STATE.GETIMAGE_1;
BioNetACSDLL._ChangeGain(0);
break;
case STATE.GETIMAGE_1:
status = BioNetACSDLL._GetNetAccessImageByManual(image);
switch (status)
{
// not connected
case -1:
SendPopUpMessage("Scanner is not connected");
break;
case 0:
SendBaseMessage("Please, touch the scanner");
break;
case 1:
int qual = BioNetACSDLL._GetIBQualityScore(image);
if (qual > NEEDED_QUALITY)
{
goto default;
}
SendPopUpMessage("Image quality " + qual + " not enough, keep finger on scanner");
OnBiometricsCaptured(new FingerImageIB(image,imageWidth,imageHeight));
break;
default:
Array.Copy(image,imageStack[firstEnrollCount],imageSize);
OnBiometricsCaptured(new FingerImageIB(image,imageWidth,imageHeight));
firstEnrollCount++;
OnSendProgressMessage((firstEnrollCount) * 22);
state = STATE.GETEMPTY_1;
break;
}
break;
case STATE.GETEMPTY_1:
image = new byte[imageSize];
status = BioNetACSDLL._GetNetAccessImage(image);
switch (status)
{
// not connected
case -1:
SendPopUpMessage("Scanner is not connected");
break;
case 0:
if (firstEnrollCount < 3)
{
state = STATE.GETFINGER_1;
}
else
{
int singeEnrolResult = BioNetACSDLL._Enroll_SingleTemplate(
(byte[])imageStack[0],(byte[])imageStack[1],(byte[])imageStack[2],
(byte[])FingerFeat[0],(byte[])FingerFeat[1],(byte[])FingerFeat[2],
resultFeat[0]);
if (singeEnrolResult < 1)
{
state = STATE.GETEMPTY_2;
}
else
{
state = STATE.IDLE;
resultBios.Add(new TemplateIB(resultFeat[0]));
SendPopUpMessage("Successfully registered");
OnBiometricsEnrolled(resultBios.ToList());
}
}
break;
default:
SendPopUpMessage("Please, remove finger from the scanner");
break;
}
break;
case STATE.GETFINGER_2:
image = new byte[imageSize];
state = STATE.GETIMAGE_2;
break;
case STATE.GETIMAGE_2:
status = BioNetACSDLL._GetNetAccessImageByManual(image);
switch (status)
{
// not connected
case -1:
SendPopUpMessage("Scanner is not connected");
break;
case 0:
SendBaseMessage("Please, touch the scanner");
break;
case 1:
int qual = BioNetACSDLL._GetIBQualityScore(image);
if (qual > NEEDED_QUALITY)
{
goto default;
}
SendPopUpMessage("Image quality " + qual + " not enough, keep finger on scanner");
OnBiometricsCaptured(new FingerImageIB(image, imageWidth, imageHeight));
break;
default:
Array.Copy(image, imageStack[secondEnrollCount], imageSize);
OnBiometricsCaptured(new FingerImageIB(image, imageWidth, imageHeight));
secondEnrollCount++;
OnSendProgressMessage(66 + (secondEnrollCount) * 11);
state = STATE.GETEMPTY_2;
break;
}
break;
case STATE.GETEMPTY_2:
image = new byte[imageSize];
status = BioNetACSDLL._GetNetAccessImage(image);
switch (status)
{
// not connected
case -1:
SendPopUpMessage("Scanner is not connected");
break;
case 0:
if (secondEnrollCount < 3)
{
state = STATE.GETFINGER_2;
}
else
{
int multiEnrollResult = BioNetACSDLL._Enroll_MultiTemplate(
(byte[])FingerFeat[0], (byte[])FingerFeat[1], (byte[])FingerFeat[2],
(byte[])imageStack[3], (byte[])imageStack[4], (byte[])imageStack[5],
resultFeat[0], resultFeat[1]);
if (multiEnrollResult > 0)
{
state = STATE.IDLE;
resultBios.Add(new TemplateIB(resultFeat[0]));
resultBios.Add(new TemplateIB(resultFeat[1]));
SendPopUpMessage("Successfully registered");
OnBiometricsEnrolled(resultBios.ToList());
}
else
{
state = STATE.IDLE;
SendPopUpMessage("Can't create template, please repeat");
OnBiometricsEnrolled(null);
}
}
break;
default:
SendPopUpMessage("Please, remove finger from the scanner");
break;
}
break;
case STATE.OFFLINE:
break;
}
}
}
catch
{
BioNetACSDLL._CloseNetAccessDevice();
}
}