/// <summary>
/// Reads the photo.
/// </summary>
/// <returns></returns>
public Image ReadPhoto()
{
if (reader == null)
{
return(null);
}
EIDPicture photo = new EIDPicture();
MemoryStream ms = null;
if (NativeMethods.ReadPhotoEx(reader.Index, photo))
{
if (photo.pictureLength == 0)
{
return(null);
}
ms = new MemoryStream(photo.picture);
Image result = Image.FromStream(ms);
ms.Dispose();
return(result);
}
else
{
return(null);
}
}
/// <summary>
/// Encodes the photo.
/// </summary>
/// <returns></returns>
public byte[] EncodePhoto()
{
if (reader == null)
{
return(null);
}
EIDPicture photo = new EIDPicture();
if (NativeMethods.ReadPhotoEx(reader.Index, photo))
{
if (photo.pictureLength == 0)
{
return(null);
}
int len = NativeMethods.GetEncodedPhotoSize(photo);
byte[] buffer = new byte[len];
int encodedLen = NativeMethods.EncodePhoto(photo, buffer, len);
encodedLen--;
if (encodedLen > len)
{
return(null);
}
if (encodedLen == len)
{
return(buffer);
}
byte[] result = new byte[encodedLen];
Array.Copy(buffer, result, encodedLen);
return(result);
}
else
{
return(null);
}
}
/// <summary>Encodes the photo.</summary>
/// <param name="fileName">Name of the file.</param>
/// <returns></returns>
public byte[] EncodePhoto(string fileName)
{
EIDPicture photo = new EIDPicture();
NativeMethods.LoadPhoto(photo, fileName);
if (photo.pictureLength == 0)
{
return(null);
}
if (photo.pictureLength > 0)
{
int len = NativeMethods.GetEncodedPhotoSize(photo);
byte[] buffer = new byte[len];
int encodedLen = NativeMethods.EncodePhoto(photo, buffer, len);
encodedLen--;
if (encodedLen > len)
{
return(null);
}
if (encodedLen == len)
{
return(buffer);
}
byte[] result = new byte[encodedLen];
Array.Copy(buffer, result, encodedLen);
return(result);
}
else
{
return(null);
}
}