Process StandardOutput buffer size

[Bulldog]

I'm not sure what you mean by secondary task, but what happens if you send a blank line after starting the process?

p.StandardInput.WriteLine(String.Empty)

Since you mentioned killing the command window and then receiving the output, it sounds as though the 3rd party app may be waiting for some type of user input.

Just a thought.

Edit: If it is looking for input, something else to try would be to try sending an EOF character (Chrw(26)).

I checked the source of the 3rd party app and its writing using printf statements (C++), so nothing special.

Writing to StandardInput certainly improves things, the redirected output appears in the window. But... I still get it in chunks a few minutes apart. I tried both versions of the code shown in this thread an dthey behave the same.

Counting the characters of one chunk, it's always 4195 which sounds suspiciously close to 4096. I guess that takes me full circle back to some kind of buffer size; it would seem the redirected output is only despatched when that buffer is full.