Reading from the screen

This is a discussion on Reading from the screen within the C++ Programming forums, part of the General Programming Boards category; How would you read in text that is displayed in the current window? Example: You evoke the command "Dir C:\" ...

  1. #1
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    Jan 2002
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    Question Reading from the screen

    How would you read in text that is displayed in the current window?
    Example:
    You evoke the command "Dir C:\" using system in stdlib.h.
    How would you read in all the stuff, that the OS spits back at you?

    If the answer is really obvious, its because I'm really new at this.
    Thanks,
    Guiderone

  2. #2
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    Join Date
    Dec 2001
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    194
    Code:
    system( "dir C:\\ > output.txt" );
    Now you can open the file "output.txt" which will contain all the info displayed on the screen from the call to dir

    In Dos/Win console mode you can redirect input or output using > and <

    program < input.txt > output.txt

    That would run program and instead of using the keyboard for cin, it would use input.txt for cin. and instead of displaying to the screen, it would print to the file output.txt

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