private extern static WinBioErrorCode CaptureSample(
WinBioSessionHandle sessionHandle,
WinBioBirPurpose purpose,
WinBioBirDataFlags flags,
out int unitId,
out IntPtr sample,
out int sampleSize,
out WinBioRejectDetail rejectDetail);
public void CaptureSample(WinBioBirPurpose purpose, WinBioBirDataFlags dataFlags)
{
int sampleSize;
WinBioRejectDetail rejectDetail;
var unitId = WinBio.CaptureSample(_handle, purpose, dataFlags, out sampleSize, out rejectDetail);
Console.WriteLine("Unit id: {0}", unitId);
Console.WriteLine("Captured sample size: {0}", sampleSize);
Console.WriteLine("Reject details: {0}", rejectDetail);
}
public void CaptureSample(WinBioBirPurpose purpose, WinBioBirDataFlags dataFlags)
{
Bitmap image;
WinBioRejectDetail rejectDetail;
var unitId = WinBio.CaptureSample(_handle, purpose, dataFlags, out rejectDetail, out image);
Console.WriteLine("Unit id: {0}", unitId);
Console.WriteLine("Captured sample size: {0}x{1}", image.Width, image.Height);
Console.WriteLine("Reject details: {0}", rejectDetail);
}
public void CaptureSample(WinBioBirPurpose purpose, WinBioBirDataFlags dataFlags)
{
int sampleSize;
WinBioRejectDetail rejectDetail;
var unitId = WinBio.CaptureSample(_handle, purpose, dataFlags, out sampleSize, out rejectDetail);
Console.WriteLine("Unit id: {0}", unitId);
Console.WriteLine("Captured sample size: {0}", sampleSize);
Console.WriteLine("Reject details: {0}", rejectDetail);
}
public static int CaptureSample(
WinBioSessionHandle sessionHandle,
WinBioBirPurpose purpose,
WinBioBirDataFlags flags,
out int sampleSize,
out WinBioRejectDetail rejectDetail)
{
int unitId;
IntPtr pointer;
var code = CaptureSample(sessionHandle, purpose, flags, out unitId, out pointer, out sampleSize, out rejectDetail);
WinBioException.ThrowOnError(code, "WinBioCaptureSample failed");
//TODO: parse WINBIO_BIR structure at pointer
Free(pointer);
return(unitId);
}
public static int CaptureSample(
WinBioSessionHandle sessionHandle,
WinBioBirPurpose purpose,
WinBioBirDataFlags flags,
out WinBioRejectDetail rejectDetail,
out Bitmap fingerprintImage)
{
int unitId;
int sampleSize;
IntPtr samplePointer;
var code = CaptureSample(sessionHandle, purpose, flags, out unitId, out samplePointer, out sampleSize, out rejectDetail);
WinBioException.ThrowOnError(code, "WinBioCaptureSample failed");
WinBioBir sample = (WinBioBir)Marshal.PtrToStructure(samplePointer, typeof(WinBioBir));
if (sample.StandardDataBlock.Size == 0)
{
throw new WinBioException("Your fingerprint sensor doesn't support StandardDataBlock");
}
IntPtr birHeaderPointer = samplePointer + sample.HeaderBlock.Offset;
IntPtr ansiHeaderPointer = samplePointer + sample.StandardDataBlock.Offset;
IntPtr ansiRecordPointer = ansiHeaderPointer + Marshal.SizeOf(typeof(WinBioBdbAnsi381Header));
WinBioBdbAnsi381Record ansiRecord = (WinBioBdbAnsi381Record)Marshal.PtrToStructure(
ansiRecordPointer, typeof(WinBioBdbAnsi381Record));
Size imageSize = new Size(ansiRecord.HorizontalLineLength, ansiRecord.VerticalLineLength);
IntPtr firstPixelPointer = ansiRecordPointer + Marshal.SizeOf(typeof(WinBioBdbAnsi381Record));
fingerprintImage = new Bitmap(imageSize.Width, imageSize.Height, 1 * imageSize.Width, PixelFormat.Format8bppIndexed, firstPixelPointer);
ColorPalette palette = fingerprintImage.Palette;
for (int i = 0; i <= 255; i++)
{
palette.Entries[i] = Color.FromArgb(i, i, i);
}
fingerprintImage.Palette = palette;
Free(samplePointer);
return(unitId);
}
