2 replies to this topic

[EberhardH]

Hi,

I've got to check if an old version of a file contains a certain string, let's say "(G+)", anywhere in it. This is the only way to identify this file.

FileGrep() does not work with binary files.

So I tried to use StrFind(). But it expects a string as argument. In a while loop, ReadBytes() always reads 60,000 bytes into a string (I also tried with only 600 bytes). The string still contains the hexadec. bytes.

The result: StrFind() is unable to detect the pattern. It only works with pure ASCII strings.

It is hard to imagine that I can read bytes, write bytes, seek a pointer - but cannot check if a binary file does contain a pattern.

Any idea?

Eberhard

[Ide Nentjes]

Hi EberhardH

I'd say you best shot is using ReadBytes to stream though the binary file, and analyzing the String that this function yield.
Read up in ReadBytes in the online help for more info.

HtH, Ide

[EberhardH]

Hi Ide,

thanks for your answer.

The problem is: it really takes ages to browse through a file of about 800 KB, always reading if the wanted pattern is there or not ...

Eberhard