Hi!

I want to create an event that is fiered when a file is accessed (Opened).

What i want to do is monitor a directory and subdirectory if files are
opened.

I have tried to use the FileSystemWatcher. But it didn't work as i expected.
I cant get it to fire an event when a file is accessed.

Any hints? Ideas, Links?

Regards
Martin

On Tue, 23 Jan 2007 12:39:45 +0100, "Martin Arvidsson, Visual Systems
AB" <(E-Mail Removed)> wrote:

>Hi!
>
>I want to create an event that is fiered when a file is accessed (Opened).
>
>What i want to do is monitor a directory and subdirectory if files are
>opened.
>
>I have tried to use the FileSystemWatcher. But it didn't work as i expected.
>I cant get it to fire an event when a file is accessed.
>
>Any hints? Ideas, Links?
>
>Regards
>Martin
>

It can be done (in Windows at least) - check out the tool FileMon from
www.sysinternals.com for an example. I suspect you will need interop
to the Windows API. Sorry I can't point you to which API call you will
need.



--
Philip Daniels

Hi,

Did you try NotifyFilters.LastAccess ?

If not good enough for you , then you will have to p/invoke some win api
(which should not be nice)


--
Ignacio Machin
machin AT laceupsolutions com


"Martin Arvidsson, Visual Systems AB" <(E-Mail Removed)> wrote in
message news:(E-Mail Removed)...
| Hi!
|
| I want to create an event that is fiered when a file is accessed (Opened).
|
| What i want to do is monitor a directory and subdirectory if files are
| opened.
|
| I have tried to use the FileSystemWatcher. But it didn't work as i
expected.
| I cant get it to fire an event when a file is accessed.
|
| Any hints? Ideas, Links?
|
| Regards
| Martin
|
|

Hi!

Yes, but no events are triggered when i open the file.

Do i do something wrong?

Regards
Martin

"Ignacio Machin ( .NET/ C# MVP )" <machin TA laceupsolutions.com> skrev i
meddelandet news:(E-Mail Removed)...
> Hi,
>
> Did you try NotifyFilters.LastAccess ?
>
> If not good enough for you , then you will have to p/invoke some win api
> (which should not be nice)
>
>
> --
> Ignacio Machin
> machin AT laceupsolutions com
>
>
> "Martin Arvidsson, Visual Systems AB" <(E-Mail Removed)> wrote in
> message news:(E-Mail Removed)...
> | Hi!
> |
> | I want to create an event that is fiered when a file is accessed
> (Opened).
> |
> | What i want to do is monitor a directory and subdirectory if files are
> | opened.
> |
> | I have tried to use the FileSystemWatcher. But it didn't work as i
> expected.
> | I cant get it to fire an event when a file is accessed.
> |
> | Any hints? Ideas, Links?
> |
> | Regards
> | Martin
> |
> |
>
>

"Martin Arvidsson, Visual Systems AB" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Hi!
>
> I want to create an event that is fiered when a file is accessed (Opened).
>
> What i want to do is monitor a directory and subdirectory if files are opened.
>
> I have tried to use the FileSystemWatcher. But it didn't work as i expected.
> I cant get it to fire an event when a file is accessed.
>
> Any hints? Ideas, Links?

This can't be done from user space, you'll have to write a FS filter driver, something which
is not possible using managed code.
Not sure why you need this though, mind to tell us?

Willy.

I am creating a simple RCS.

The thing is we have a 4G development software and it's a bit odd. The new
version simply
locks the development area when a user opens a workspace.

What i want to do is have a master on the server, each developer should have
a local copy.

When a user opens a file for editing on a local computer, it will check what
file is opened. Check against a list. If the file is opened, it will tell
the user that the file is currentlu beeing edited by another user. And a
little more functions which i dont have time to describe right now...

/Martin

"Willy Denoyette [MVP]" <(E-Mail Removed)> skrev i meddelandet
news:(E-Mail Removed)...
> "Martin Arvidsson, Visual Systems AB" <(E-Mail Removed)> wrote in
> message news:(E-Mail Removed)...
>> Hi!
>>
>> I want to create an event that is fiered when a file is accessed
>> (Opened).
>>
>> What i want to do is monitor a directory and subdirectory if files are
>> opened.
>>
>> I have tried to use the FileSystemWatcher. But it didn't work as i
>> expected.
>> I cant get it to fire an event when a file is accessed.
>>
>> Any hints? Ideas, Links?
>
> This can't be done from user space, you'll have to write a FS filter
> driver, something which is not possible using managed code.
> Not sure why you need this though, mind to tell us?
>
> Willy.
>

"Martin Arvidsson, Visual Systems AB" <(E-Mail Removed)> wrote in
message news:(E-Mail Removed)...
| Hi!
|
| Yes, but no events are triggered when i open the file.
|
| Do i do something wrong?

Post your code, not only you need to correctly set the NotifyEvents but also
you need to assign the correct event handler.

Are you activating the FileSystemWatcher?


--
Ignacio Machin
machin AT laceupsolutions com

Hi!

Yes the filewatcher is enabled...

I have assigned every event, Change, Create. etc

But it will not simply raise

If i add all the filters i can se when its changed, created etc. But any
events on when the file is opened is not done.

/Martin


"Ignacio Machin ( .NET/ C# MVP )" <machin TA laceupsolutions.com> skrev i
meddelandet news:(E-Mail Removed)...
>
> "Martin Arvidsson, Visual Systems AB" <(E-Mail Removed)> wrote in
> message news:(E-Mail Removed)...
> | Hi!
> |
> | Yes, but no events are triggered when i open the file.
> |
> | Do i do something wrong?
>
> Post your code, not only you need to correctly set the NotifyEvents but
> also
> you need to assign the correct event handler.
>
> Are you activating the FileSystemWatcher?
>
>
> --
> Ignacio Machin
> machin AT laceupsolutions com
>
>

Hi,



"Martin Arvidsson, Visual Systems AB" <(E-Mail Removed)> wrote in
message news:(E-Mail Removed)...
| Hi!
|
|
| I have assigned every event, Change, Create. etc
|
| But it will not simply raise
|
| If i add all the filters i can se when its changed, created etc. But any
| events on when the file is opened is not done.
|
| /Martin
|
|
| "Ignacio Machin ( .NET/ C# MVP )" <machin TA laceupsolutions.com> skrev i
| meddelandet news:(E-Mail Removed)...
| >
| > "Martin Arvidsson, Visual Systems AB" <(E-Mail Removed)> wrote
in
| > message news:(E-Mail Removed)...
| > | Hi!
| > |
| > | Yes, but no events are triggered when i open the file.
| > |
| > | Do i do something wrong?
| >
| > Post your code, not only you need to correctly set the NotifyEvents but
| > also
| > you need to assign the correct event handler.
| >
| > Are you activating the FileSystemWatcher?
| >
| >
| > --
| > Ignacio Machin
| > machin AT laceupsolutions com
| >
| >
|
|

Hi,

"Martin Arvidsson, Visual Systems AB" <(E-Mail Removed)> wrote in
message news:(E-Mail Removed)...
| Hi!
|
| Yes the filewatcher is enabled...
|
| I have assigned every event, Change, Create. etc
|
| But it will not simply raise
|
| If i add all the filters i can se when its changed, created etc. But any
| events on when the file is opened is not done.

Sorry, the other post went away before I finished writting it

So in that is the case you may have to deal with P/invoke.

Even so, I would advise you to first try to explorer WMI, maybe you have a
way of doing it using WMI


--
Ignacio Machin
machin AT laceupsolutions com