Subj : Re: Opening a file that is being created with a VB App.
To   : borland.public.cpp.borlandcpp
From : Sebastian Ledesma
Date : Mon Jun 07 2004 12:18 pm

Thanks to everyone for the answer, and yes, Ed's solution works, I used it
in another function to parse the file and works. But in the main code I
preferred to
use CreateFile since it allow better control and make my code optimized.

Saludos
Sebastian

"Bob Gonder" <notbg@notmindspring.invalid> escribió en el mensaje
news:nbs3c0hbl03n4f7rklqubsbef9tetp5r5t@4ax.com...
> >Sebastian Ledesma wrote:
> >> Hello:
> >>
> >> I need to open a file that is being created by a Visual Basic App
> >> (something like this: Open sFile2 For Binary As FileGrab2 ), i tried
several
> >> parameters with CreateFile without success (   hf=CreateFile(filename,
> >> FILE_READ_DATA, FILE_SHARE_WRITE, lpSecurityAttributes,
> >>         OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL );  ), any hints
will be
> >> appreciatted.
>
> Biggest hint is to read (and understand) the fine manual.
> CreateFile( filename, GENERIC_READ,
>    FILE_SHARE_READ|FILE_SHARE_WRITE, /*Allow others full use */
>    NULL, /* Almost always NULL unless you have special needs*/
> >>         OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL );
>
> Should also OR one of the FILE_FLAG_*  features so Windows can
> optimise the reads. In particular, either FILE_FLAG_SEQUENTIAL_SCAN or
> FILE_FLAG_RANDOM_ACCESS. Read the manual to figure out which is best
> for your file.
>
> FILE_ATTRIBUTE_NORMAL|FILE_FLAG_RANDOM_ACCESS
>

.