Pipe handling

This is a discussion on Pipe handling within the C++ Programming forums, part of the General Programming Boards category; Hi, I am running an application through a pipe. This applcation starts to record sound from the soundcard until I ...

  1. #1
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    Pipe handling

    Hi,

    I am running an application through a pipe. This applcation starts to record sound from the soundcard until I hit Enter.

    To start the application I am using the following line:
    Code:
    _cmd_pipe = _popen(recordWaveCmd.c_str(),"r")
    then I use
    Code:
    fputc('\n',_cmd_pipe);
    to send a "\n" to stop recording.

    However, when I use the command
    Code:
    _pclose(_cmd_pipe);
    my main application stops until i hit the Escape key, and that's a problem.

    Is there anyway to solve this problem?

    Best regards,

    Alex.

  2. #2
    and the hat of wrongness Salem's Avatar
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    Why are you trying to write to something that's opened read-only?
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.
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  3. #3
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    Accualy that is not the problem, already tried with "w". The application pauses when the _pclose function is called. I have to hit a key to continue the execution of the main application.

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