Re: CreateFile and ReadFile

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#11201

From: ray
Date: Thu, 19 Feb 2004 18:09

30 lines
1917 bytes

but i can use C# to do it
//===============================
FileStream fs = new
FileStream("\\\\.\\PhysicalDrive0",System.IO.FileMode.Open );
   for(int i = 0;i < 100 ;i++)
   {
    Byte[] b = new Byte[1];
    int byteCount = 0;
    byteCount = fs.Read(b,0, 1);
}

CBuilder has such function or not?

"Andrue Cope" <no.spam@spammy.com> ???
news:ih67f05a4bzf.1w8m6acs1eu0e.dlg@40tude.net ???...
> On Fri, 20 Feb 2004 00:42:58 +0800, ray wrote:
>
> > Hi,
> > i can use the following code to read a drive, but it just allows me to
read
> > 512*n bytes (sector size) every time.
> > how can i read 1 byte every time?
>
> You can't. Block devices are called block devices because they can only be
> read block by block. A block for most hard drives will be 512 sectors.
> Standard practice is to read the entire block then extract the bytes that
> you really need.
> -- 
> Andrue Cope
> [Bicester UK]

Technical Details

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Subject: Re: CreateFile and ReadFile
Date: Fri, 20 Feb 2004 02:09:41 +0800
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