Xceed .NET Libraries Documentation
Xceed.Compression.Formats Assembly / Xceed.Compression.Formats Namespace / ChecksumStream Class / CalculateCrc32 Method / CalculateCrc32(Byte[],Int32,Int32,Int32) Method
The byte array whose checksum will be calculated.
The zero-based byte offset in buffer at which to begin reading bytes.
The number of bytes to read from buffer.
The CRC32 checksum from a previous call to CalculateCrc32 or 0 if a new CRC should be calculated.


In This Topic
    CalculateCrc32(Byte[],Int32,Int32,Int32) Method
    In This Topic
    Calculates a CRC32 checksum for the specified byte array.
    Syntax
    'Declaration
     
    Public Overloads Shared Function CalculateCrc32( _
       ByVal buffer() As Byte, _
       ByVal offset As Integer, _
       ByVal count As Integer, _
       ByVal previousCrc As Integer _
    ) As Integer
    'Usage
     
    Dim buffer() As Byte
    Dim offset As Integer
    Dim count As Integer
    Dim previousCrc As Integer
    Dim value As Integer
     
    value = ChecksumStream.CalculateCrc32(buffer, offset, count, previousCrc)
    public static int CalculateCrc32( 
       byte[] buffer,
       int offset,
       int count,
       int previousCrc
    )

    Parameters

    buffer
    The byte array whose checksum will be calculated.
    offset
    The zero-based byte offset in buffer at which to begin reading bytes.
    count
    The number of bytes to read from buffer.
    previousCrc
    The CRC32 checksum from a previous call to CalculateCrc32 or 0 if a new CRC should be calculated.

    Return Value

    The CRC32 checksum calculated for the buffer, including the previous CRC if any.
    Requirements

    Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

    See Also