Hi,

Writing a small application which requires the application to be
informed when the content / filename / location of a particular file
changes. Is there a Win32 class available which does this ?

Thanks in advance,
vivekian

On Apr 7, 3:48*pm, vivekian <vivekase...@gmail.com> wrote:
> Hi,
>
> Writing a small application which requires the application to be
> informed when the *content / filename / location of a particular file
> changes. Is there a Win32 class available which does this ?
>
> Thanks in advance,
> vivekian


Hi,

You can use the following API to retrieve information that
describes the changes within the specified directory:

ReadDirectoryChangesW()

http://msdn2.microsoft.com/en-us/lib...65(VS.85).aspx

Kellie.

"Kellie Fitton" <KELLIEFITTON@yahoo.com> wrote in message
news:60ab34b1-ef43-4c37-b1bb-9579e052bbe3@a5g2000prg.googlegroups.com...
On Apr 7, 3:48 pm, vivekian <vivekase...@gmail.com> wrote:
> Hi,
>
> Writing a small application which requires the application to be
> informed when the content / filename / location of a particular file
> changes. Is there a Win32 class available which does this ?
>
> Thanks in advance,
> vivekian


Take a look at the FindFirstChangeNotification API. In the MSDN library,
the path is Win32 and COM Development -> System Services -> File Services ->
File Systems ->Directory Management -> Using Directory Management ->
Obtaining Directory Change Notifications. If you are coding in dotNet, take
a look at the System.IO.FileSystemWatcher class which is a wrapper for the
FindFirstChangeNotification API functions.

Mike.

Hello!
You wrote on Mon, 7 Apr 2008 15:48:19 -0700 (PDT):

v> Writing a small application which requires the application to be
v> informed when the content / filename / location of a particular file
v> changes. Is there a Win32 class available which does this ?

You can try FindFirstChangeNotification API as mentioned, but it seems that
it won't be enough for your task as it won't give you information that your
file has been moved or renamed.
You can check CallbackFilter ( http://www.eldos.com/cbflt/ ) that would let
you track file system events in real-time and give complete control over the
events.

With best regards,
Eugene Mayevski
http://mayevski.blogspot.com/

On Apr 8, 9:52*am, "Eugene Mayevski" <mayev...@eldos.com> wrote:
> Hello!
> You wrote *on Mon, 7 Apr 2008 15:48:19 -0700 (PDT):
>
> *v> Writing a small application which requires the application to be
> *v> informed when the *content / filename / location of a particular file
> *v> changes. Is there aWin32class available which does this ?
>
> You can try FindFirstChangeNotification API as mentioned, but it seems that
> it won't be enough for your task as it won't give you information that your
> file has been moved or renamed.
> You can check CallbackFilter (http://www.eldos.com/cbflt/) that would let
> you track file system events in real-time and give complete control over the
> events.
>
> With best regards,
> Eugene Mayevskihttp://mayevski.blogspot.com/

Thanks a bunch for all the pointers !!

On 8 avr, 16:52, "Eugene Mayevski" <mayev...@eldos.com> wrote:

> You can try FindFirstChangeNotification API as mentioned, but it seems that
> it won't be enough for your task as it won't give you information that your
> file has been moved or renamed.
> You can check CallbackFilter (http://www.eldos.com/cbflt/) that would let
> you track file system events in real-time and give complete control over the
> events.

SHChangeNotifyRegister() does this...

Hello!
You wrote on Tue, 8 Apr 2008 08:10:24 -0700 (PDT):

CA> SHChangeNotifyRegister() does this...

"This function is available through Microsoft Windows XP Service Pack 2
(SP2) and Windows Server 2003"

Also, this gives only notification and not control.

With best regards,
Eugene Mayevski
http://mayevski.blogspot.com/

On 8 avr, 17:35, "Eugene Mayevski" <mayev...@eldos.com> wrote:
> Hello!
> You wrote *on Tue, 8 Apr 2008 08:10:24 -0700 (PDT):
>
> *CA> SHChangeNotifyRegister() does this...
>
> "This function is available through Microsoft Windows XP Service Pack 2
> (SP2) and Windows Server 2003"

It's available since NT4 (dynamic call), but was not documented
before...

On Apr 7, 7:45 pm, "Michael D. Ober" <obermd.@.alum.mit.edu.nospam.>
wrote:
> "Kellie Fitton" <KELLIEFIT...@yahoo.com> wrote in message
>
> news:60ab34b1-ef43-4c37-b1bb-9579e052bbe3@a5g2000prg.googlegroups.com...
> On Apr 7, 3:48 pm, vivekian <vivekase...@gmail.com> wrote:
>
> > Hi,
>
> > Writing a small application which requires the application to be
> > informed when the content / filename / location of a particular file
> > changes. Is there a Win32 class available which does this ?
>
> > Thanks in advance,
> > vivekian
>
> Take a look at the FindFirstChangeNotification API. In the MSDN library,
> the path is Win32 and COM Development -> System Services -> File Services ->
> File Systems ->Directory Management -> Using Directory Management ->
> Obtaining Directory Change Notifications. If you are coding in dotNet, take
> a look at the System.IO.FileSystemWatcher class which is a wrapper for the
> FindFirstChangeNotification API functions.
>
> Mike.

I imagine coding in dotNet would require the .NET platform to become a
prerequisite for the application ?

~vivekian

"vivekian" <vivekaseeja@gmail.com> wrote in message
news:f4e4bced-805c-4dc4-a00e-4e8e533b04a4@u36g2000prf.googlegroups.com...
> On Apr 7, 7:45 pm, "Michael D. Ober" <obermd.@.alum.mit.edu.nospam.>
> wrote:
>> "Kellie Fitton" <KELLIEFIT...@yahoo.com> wrote in message
>>
>> news:60ab34b1-ef43-4c37-b1bb-9579e052bbe3@a5g2000prg.googlegroups.com...
>> On Apr 7, 3:48 pm, vivekian <vivekase...@gmail.com> wrote:
>>
>> > Hi,
>>
>> > Writing a small application which requires the application to be
>> > informed when the content / filename / location of a particular file
>> > changes. Is there a Win32 class available which does this ?
>>
>> > Thanks in advance,
>> > vivekian
>>
>> Take a look at the FindFirstChangeNotification API. In the MSDN library,
>> the path is Win32 and COM Development -> System Services -> File
>> Services ->
>> File Systems ->Directory Management -> Using Directory Management ->
>> Obtaining Directory Change Notifications. If you are coding in dotNet,
>> take
>> a look at the System.IO.FileSystemWatcher class which is a wrapper for
>> the
>> FindFirstChangeNotification API functions.
>>
>> Mike.
>
> I imagine coding in dotNet would require the .NET platform to become a
> prerequisite for the application ?
>


True, which is why I listed both methods. The question of monitoring the
file system appears periodically in the dotnet programming groups as well.
Your post wasn't clear what your development environment was. Also, the
FindFirstChangeNotification supports renames, creates, closes, changes, and
deletes. The one drawback is that the file system must be on an NT4 or
Windows 95 or later system. Samba doesn't support this API.

Mike.

Mike.