CalculateChecksum Method (buffer, offset, length)

Calculates checksum of given buffer.

Declaration Syntax

Visual Basic

Visual C++

protected abstract ushort CalculateChecksum(
	byte[] buffer,
	int offset,
	int length
)

Protected MustOverride Function CalculateChecksum ( _
	buffer As Byte(), _
	offset As Integer, _
	length As Integer _
) As UShort

protected:
virtual unsigned short CalculateChecksum(
	array<unsigned char>^ buffer, 
	int offset, 
	int length
) abstract

Parameters

buffer (array<Byte>[]()[][]): Buffer image over which to calculate checksum.

offset (Int32): Start index into buffer to calculate checksum.

length (Int32): Length of data within buffer to calculate checksum.

Return Value

Checksum over specified portion of buffer.

Remarks

Override with needed checksum calculation for particular protocol.

Examples

This example provides a CRC-CCITT checksum:

CopyC#

using TVA.IO.Checksums;

protected override ushort CalculateChecksum(byte[] buffer, int offset, int length)
{
    // Return calculated CRC-CCITT over given buffer...
    return buffer.CrcCCITTChecksum(offset, length);
}

Assembly: TVA.PhasorProtocols (Module: TVA.PhasorProtocols) Version: 1.4.192.0