On Thu, 2 Mar 2006, Matthias Fischmann wrote: ...
The problem is that gnuplot terminates right away after it tries to read from stdin (I can see the shadow of a window appear and vanish immediately). I tried setFdOption, with no effect. Is this because the handles passed to runProcess are closed in the parent process, and therefore the pipe is teared down and useless?
I don't think so: If I run 'find /' instead of gnuplot, the process happily starts and I can hGetLine from stdout.
That doesn't necessarily disprove your hypothesis, since "find" doesn't read input. You might try "tr" instead, for example. I don't see anything about what you were doing that would be obviously different from runProcessInteractive, but as long as you're making a pipe for error output, you may as well read it and see if gnuplot has left any clue to its problem there. Donn Cave, donn@drizzle.com