get text from screen

How do I "read" some text on console?
example:

Code:

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system("program.exe");

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then the program.exe i called from my code, puts some output string on the screen and I'd like to get that output message.
I could call the program from my code this way:

Code:

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system("program.exe > output.txt");

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then I could open the file and read the contents. But I'd like to know if there is a more convenient way to do that.

Thats compile dependant (at least the more convient ways are)

You might see if you have pipes available, in the form of popen() or _popen().

Try this too.

Using a pipe may be more convenient:

Code:

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system("program.exe | myprog.exe");

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This will send stdout of program.exe to stdin of myprog.exe

Or there's the not as convenient Win32 API method.

gg

Sorry. I didnt reported I want a portable code. None of windows APIs plz.
Thanks!

The system() function call is POSIX and a POSIX compliant shell will support pipelines ("command1 | command2") - if you're looking for convenience and portability.

gg

Oh I see... posix
Thank you guys for the help!