Continously Read/Write Data with Pipes Win32

Question

Hello,

I am trying to write a GUI program for a command line program in Win32 using WinAPI (so please no MFC). In my current attempt, I am creating an input pipe and an output pipe to read/write data. However, my problem comes in when I attempt to continuously read from a program or to simply write after a single read due to the way I have to "CloseHandle();"'s. Is there any good way around this that anyone can recommend? I need to keep the sub-process open the entire time I am reading from/writing to it. Is there perhaps a better way over using CreatePipe(); and CreateProcess(); to do this?

Regards,
Dennis M.

Answer 1

You need to use Asynchronous I/O.

Answer 2

I'm not sure I completely understand your problem.

I assume you've seen this MSDN article (http://msdn.microsoft.com/en-us/library/ms682499(VS.85).aspx) and have code similar to it?

I found it easier to use overlapped I/O and I/O completion ports to handle the pipes, so I wrote a wrapper to create the pipes correctly (http://www.lenholgate.com/archives/000762.html).