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CRC32 User Function Library

P: n/a
Hello,

does anyone have either a User Function Library (or the source for
one) to create a CRC32 checksum for a given string? I want to use the
function in a crystal formula thus:

formula = CRC32("123456789")

This would then display on the report the CRC32 checksum for "123456789".

Cheers
Paul


Nov 20 '05 #1
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6 Replies


P: n/a
* "Paul M." <pa**@nospam.fsnet.co.uk> scripsit:
does anyone have either a User Function Library (or the source for
one) to create a CRC32 checksum for a given string? I want to use the
function in a crystal formula thus:

formula = CRC32("123456789")

This would then display on the report the CRC32 checksum for "123456789".


<http://vbaccelerator.com/article.asp?id=930>

Please only include relevant groups in the "Newsgroups" field in future!

--
Herfried K. Wagner [MVP]
<http://www.mvps.org/dotnet>
Nov 20 '05 #2

P: n/a
Hi,

What CRC do you want? I have source code on my homepage that calculates the
CRC32 used for PKZip and Zmodem. However, there are other variations. It
works fine in .NET.

Dick

--
Richard Grier (Microsoft Visual Basic MVP)

See www.hardandsoftware.net for contact information.

Author of Visual Basic Programmer's Guide to Serial Communications, 3rd
Edition ISBN 1-890422-27-4 (391 pages) published February 2002.
Nov 20 '05 #3

P: n/a
Hi Dick
thanks for replying I am after the (prefer VB) source code for a
Crystal User Function Library that implements the CRC32 checksum algorithm.
I think its a standard used in many places such as pkzip, data transmission.

Cheers
Paul

"Dick Grier" <di**************@msn.com> wrote in message
news:e1**************@TK2MSFTNGP12.phx.gbl...
Hi,

What CRC do you want? I have source code on my homepage that calculates the CRC32 used for PKZip and Zmodem. However, there are other variations. It
works fine in .NET.

Dick

--
Richard Grier (Microsoft Visual Basic MVP)

See www.hardandsoftware.net for contact information.

Author of Visual Basic Programmer's Guide to Serial Communications, 3rd
Edition ISBN 1-890422-27-4 (391 pages) published February 2002.

Nov 20 '05 #4

P: n/a
Hi Dick
thanks for replying I am after the (prefer VB) source code for a
Crystal User Function Library that implements the CRC32 checksum algorithm.
I think its a standard used in many places such as pkzip, data transmission.

Cheers
Paul

"Dick Grier" <di**************@msn.com> wrote in message
news:e1**************@TK2MSFTNGP12.phx.gbl...
Hi,

What CRC do you want? I have source code on my homepage that calculates the CRC32 used for PKZip and Zmodem. However, there are other variations. It
works fine in .NET.

Dick

--
Richard Grier (Microsoft Visual Basic MVP)

See www.hardandsoftware.net for contact information.

Author of Visual Basic Programmer's Guide to Serial Communications, 3rd
Edition ISBN 1-890422-27-4 (391 pages) published February 2002.

Nov 20 '05 #5

P: n/a
CRC 54 User 29k

Paul M. <pa**@nospam.fsnet.co.uk> wrote in message
news:bp**********@newsg4.svr.pol.co.uk...
Hi Dick
thanks for replying I am after the (prefer VB) source code for a Crystal User Function Library that implements the CRC32 checksum algorithm. I think its a standard used in many places such as pkzip, data transmission.
Cheers
Paul

"Dick Grier" <di**************@msn.com> wrote in message
news:e1**************@TK2MSFTNGP12.phx.gbl...
Hi,

What CRC do you want? I have source code on my homepage that calculates

the
CRC32 used for PKZip and Zmodem. However, there are other variations. It works fine in .NET.

Dick

--
Richard Grier (Microsoft Visual Basic MVP)

See www.hardandsoftware.net for contact information.

Author of Visual Basic Programmer's Guide to Serial Communications, 3rd
Edition ISBN 1-890422-27-4 (391 pages) published February 2002.


Nov 20 '05 #6

P: n/a
CRC 54 User 29k

Paul M. <pa**@nospam.fsnet.co.uk> wrote in message
news:bp**********@newsg4.svr.pol.co.uk...
Hi Dick
thanks for replying I am after the (prefer VB) source code for a Crystal User Function Library that implements the CRC32 checksum algorithm. I think its a standard used in many places such as pkzip, data transmission.
Cheers
Paul

"Dick Grier" <di**************@msn.com> wrote in message
news:e1**************@TK2MSFTNGP12.phx.gbl...
Hi,

What CRC do you want? I have source code on my homepage that calculates

the
CRC32 used for PKZip and Zmodem. However, there are other variations. It works fine in .NET.

Dick

--
Richard Grier (Microsoft Visual Basic MVP)

See www.hardandsoftware.net for contact information.

Author of Visual Basic Programmer's Guide to Serial Communications, 3rd
Edition ISBN 1-890422-27-4 (391 pages) published February 2002.


Nov 20 '05 #7

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