internal byte[] Serialize()
{
int birsize = Marshal.SizeOf(typeof(bioapi_bir));
byte[] birBytes = new byte[birsize + BiometricData.Length];
GCHandle gcheader = GCHandle.Alloc(birBytes, GCHandleType.Pinned);
Marshal.StructureToPtr(bir_, gcheader.AddrOfPinnedObject(), false);
gcheader.Free();
BiometricData.CopyTo(birBytes, birsize);
return(birBytes);
}