#include #include #define IsConsoleHandle(h) (((long) (h) & 3) == 3) int main (int argc, char **argv) { printf ("isatty (stdin): %d\n", isatty (fileno (stdin))); printf ("IsConsoleHandle (stdin): %d\n", IsConsoleHandle (_get_osfhandle (fileno (stdin)))); printf ("isatty (stdout): %d\n", isatty (fileno (stdout))); printf ("IsConsoleHandle (stdout): %d\n", IsConsoleHandle (_get_osfhandle (fileno (stdout)))); return 0; }