I want to cut a small piece of a large binary file

[scon]

Hi! Please, help

I want to very quickly cut a small piece of a large binary file at the end. This piece (5 KB) I need. I am using:

# Include "Binary.au3"

$ bData = FileRead ($hFile)

$ bData = _BinaryRight ($bData, 5000)

FileClose ($ hFile)

This works for a long time. How can I do differently?

TNX

[Skitty]

Look into _WinAPI_SetFilePointer

[Skitty]

That will only work with the other WinAPI functions. He needs to use the native function FileSetPos before using FileRead.

Good thing you pointed that out, I've been up too damn long today.

[scon]

YES! thank you very much!

#include <Constants.au3>

$hFile = FileOpen ($hFile, 16)

FileSetPos ( $hFile, -5000, 2 )

$bData = FileRead ( $hFile )

FileClose ( $hFile )

This work very fast Edited May 4, 2012 by scon