Re: [Haskell] Win32 process spawning, POpen and Hugs, revisited

On Wed, Mar 17, 2004 at 10:47:59AM +0000, Graham Klyne wrote:

So this (alone) is not enough. I did also try using "a" and "ab", but no joy there, either. This starts to point to some interaction between the I/O library and Windows anonymous pipe. My C code (which works as expected) uses the _write function (equiv. Unix "write") directly on the returned file descriptor.

Can you try fdopen+fwrite in your C code?