Open a file as read only

[venerable bede]

Using the following :
System.Diagnostics.Process.Start("YourFile.txt");

I can open a file with whatever application is suitable for that file type if supported but what I want to know is.

Can i open that file in read only mode ?
I would prefer not to make a reference to the various COM objects for office applications.

[RobDog888]

Where does Office come into this?

If you use System.IO class you can open a file for read/write operations using the ReadOnly file mode.

[penagate]

Open it yourself and lock it, then open it in the 3rd party application; or, if the application has a command-line switch to control read-only mode, start the application with that switch and pass the file name as an argument.

[venerable bede]

Cheers.
Is it possible to get a handle on the application closing ?
I don't think this is possible but it would be useful if I my application could be alerted when word,notepad or whatever closed so I could run some clean up code.

[penagate]

Yes:

Imports System.Diagnostics
' ...
Dim notepad As Process = Process.Start("notepad")
notepad.EnableRaisingEvents = True
AddHandler notepad.Exited, AddressOf notepad_Exited
' ...
Private Sub notepad_exited(sender As Object, e As EventArgs)
  MessageBox.Show("Notepad was closed")
End Sub

[venerable bede]

Thanks penegate.

You are a god among men

[penagate]

I like to think so, but it's nice to hear it from someone else.