Need help with file access

Hello all,

I am working on a project that requires me to read in a file from the hard disk and determine common patterns. to do this I need to "see" the binary in 32 bit chunks. does anyone know of a simple way to do this? Any help will be appreciated and mentioned in the program. Thanks

[Iain17]

Check out my post on a similar topic.

Binary File Access

[kedaman]

32 bit chunks can't be easier than this:

Dim chunks() as long
Open File for binary as #1
   get #1,,chunks
close 1

Thanks guy's. that helps some.But......

What I really need to know is how to read the file in as chunks and then compare the chunks to a "database" (a list of the possible combonations of 1's and 0'(on's and off's) in a 32 bit chunk) so I can assign a code number to each chunk. I should be able to figure out most of that. I just need to make sure that reading in the file as binary will allow me to see the bits in the chunk. Also, a tricky bit that's bothering me is how to assign the last chunk a code if it's not 32 bits long. Any suggestions?


After I posted this I tried your code kedaman.

I recieved an error 458. I haven't gotten the sp4 downloaded yet. this may be the cause.

[Edited by Technowizard on 09-18-2000 at 10:19 PM]

[kedaman]

If the last chunk is 8 bit for instance, it will add up extra 0 bit's to the last long integer.
you could have a look at my (not yet complete) file tutorial:
http://www.geocities.com/kedasu/kedamans_file.htm
There should be a section about how data is stored binary, and look at integer, since longinteger is stored the same way except with 16 bit extra.

To get a bit from a long integer you could probably do something like this:

yourbit = cbool(lng and bit)