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I have a Win32 application written in C that can have its console output via printf() redirected to a log file.
It would be nice if I could have my app. detect if it had been started with or without a redirect '>'.
Any ideas?
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The > symbol is known as the output redirection operator. The output of a process can be redirected to a file by typing the command followed by the output redirection operator and file name.
Output redirection is used to put output of one command into a file or into another command.
This is known as redirecting output. Redirection is done using either the ">" (greater-than symbol), or using the "|" (pipe) operator which sends the standard output of one command to another command as standard input.
Input/Output (I/O) redirection in Linux refers to the ability of the Linux operating system that allows us to change the standard input ( stdin ) and standard output ( stdout ) when executing a command on the terminal. By default, the standard input device is your keyboard and the standard output device is your screen.
Method from Microsoft: WriteConsole fails if it is used with a standard handle that is redirected to a file. If an application processes multilingual output that can be redirected, determine whether the output handle is a console handle (one method is to call the GetConsoleMode function and check whether it succeeds).
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