Cancel open drawing

[BBAS]

Is there a way to Cancel the open command ?
What i have is this

 
Private Sub ACADApp_BeginOpen(FileName As String)
If FileName = something Then
'code for cancel open
End If
End Sub

[Raggi_Thor]

I wasn't able to test your code.
Do you run it in VBA inside acad?

Maybe some SendKey and "Esc"?

[Raggi_Thor]

Just curious, why?
Maybe redefining the Open command is another possibility?

[BBAS]

sorry but i was out.
What i want is when someone tries to open a drawing at a specific path a message will ask the user if he wants the drawing to open in read-only or not state.
So i thought that i could do this with the "BeginOpen" event.
The code should do this.

1.Check the path of the drawing that is about to open
2.Ask if it should open read-only
3.Then open the drawing

About redefining the Open command i don't know how it can be done , maybe a little help.

[Raggi_Thor]

Think about setting the property for theses files or folders to "Read only" in Windows Explorer. Isn't that easier?

If you use Lisp to define a command like this:

(defun c:OPEN()
...
)

Then you can use the command UNDEFINE to make AutoCAD forget about the normal OPEN command..
Use REDEFINE to get back the normal command.

[BBAS]

After a long search i found that you can't stop the open command from the "beginopen" event.
The only thing you can do is redefine the open command.
Raggi_Thor thanks for your help.

[Raggi_Thor]

What about setting some folders or files (drawings) to read only for certain users? Isn't that what you really want?

[BBAS]

Yes but what i want is to protect drawings from those who will have full access. Very often someone opens a drawing for viewing or to plot something , make changes and when he closes the drawing instead of pressing "no" to the question about saving , he presses "yes" and the drawing get all mess up.

The only thing that i want now is to find a way to "browse" for a drawing through VBA. Can you help?

[Raggi_Thor]

First I want to be sure you understand what I am saying about setting file properties in the Windows explorer.
If you right click on a file or a folder and select Properties and then you can check the Read Only attribute. This can be set for all files in a folder and sub folders if you like.

When you open a drawing that is read only, it behave exactly the way you want. The save command does not work as normally.

[BBAS]

I understand. But making the files read-only for everyone means that if you want to make changes you would have to go to the files properties and uncheck the read-only option.
With network-users you can assign read-only privileges to certain users ,but what about others that have full access??? They can still modify a drawing by mistake. That is what i'm trying to prevent.