popen2

Pierre Hanser hanser at club-internet.fr
Sat Oct 29 16:35:15 CEST 2005


Grant Edwards a écrit :
> On 2005-10-29, Piet van Oostrum <piet at cs.uu.nl> wrote:
> 
>>>>>>>"g.franzkowiak" <g.franzkowiak at onlinehome.de> (gf) wrote:
>>
>>>gf> If starts a process with popen2.popen3('myprogram') and myprogram.exe is
>>>gf>  running before, I've a connection to the second process, not to the first.
>>>gf> I can find the process by name before I start a process with popen2...,
>>>gf> but how bcan I connect t this process with a pipe ?
>>
>>You have to use a named pipe.
> 
> 
> That would require that the application know about the named
> pipe and open it.  I don't think there is any way to swap a
> pipe in for stdin/stdout once a process is running.
> 
in C: freopen



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