Public Function New( _
   ByVal polynomial As Integer, _
   ByVal reverseBits As Boolean _
)

Visual Basic (Usage)	Copy Code
Dim polynomial As Integer Dim reverseBits As Boolean   Dim instance As New CRC32(polynomial, reverseBits)

public CRC32( 
   int polynomial,
   bool reverseBits
)

public:
CRC32( 
   int polynomial,
   bool reverseBits
)

Parameters

polynomial

The polynomial to use for the CRC, expressed in the reversed (LSB) format: the highest ordered bit in the polynomial value is the coefficient of the 0th power; the second-highest order bit is the coefficient of the 1 power, and so on. Expressed this way, the polynomial for the CRC-32C used in IEEE 802.3, is 0xEDB88320.

reverseBits

specify true if the instance should reverse data bits.

In the CRC-32 used by BZip2, the bits are reversed. Therefore if you want a CRC32 with compatibility with BZip2, you should pass true here for the reverseBits parameter. In the CRC-32 used by GZIP and PKZIP, the bits are not reversed; Therefore if you want a CRC32 with compatibility with those, you should pass false for the reverseBits parameter.

Target Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family

Reference