e-CryptIt Engine - Checksums Xojo Plugin |

# CRC16.UpdateMemoryBlock Method (console safe)

Updates the CRC checksum with a memory block taking selected bytes from the block.

UpdateMemoryBlock(
data as MemoryBlock,
offset as Integer,
length as Integer,
crc as UInt16) as UInt16

#### Parameters

data
  The MemoryBlock data to update the CRC stream with.
offset
  The first byte from the MemoryBlock to take. (note this value is zero based)
length
  Count of bytes to take from the MemoryBlock.
crc
  Crc value to calculate from. This is normally the result of the previous crc value in the stream.

#### Returns

UInt16

#### Remarks

#### See Also

CRC16 Class