How to retrieve a handle to the Process from ShellExecute()?

[Fei Yuan]

Starting an external process needs to pass it a ProcessStartInfo() object.
ProcessStartInfo has a property "UseShellExecute" that can open/print a
file. However, I'm having a hard time getting the handle to the application
after calling Process.Start(). Basically, I need the handle to monitor the
application launched.

Anybody knows where I can retrieve this handle or process ID? I also looked
into Windows API's "shell32.dll" "Execute()" function, it however returns a
handle that's only good to check if any error occurred, not the actual
Process handle.

Any help or hint will be appreciated!

Regards,
- Fei -

 

[Paul E Collins]

I'm having a hard time getting the handle to the
application after calling Process.Start().

Is this what you want?

Process p = new Process( ... );
IntPtr h = p.Handle;

P.

 

[Fei Yuan]

No, accessing that field will throw an exception "No associated process".
The key is that the process is not started directly, but through the Shell,
with Shell commands.

 

[cody]

Why do you need to set the UseShellExecute flag?