#include <io.h> int setmode(int file, int mode);
This function sets the mode of the given file to mode, which
is either O_TEXT or O_BINARY. It will also set the file
into either cooked or raw mode accordingly, and set any FILE*
objects that use this file into text or binary mode.
When called to put file that refers to the console into binary
mode, setmode will disable the generation of SIGINT when
you press Ctrl-C (Ctrl-Break will still cause
SIGINT), because many programs that use binary reads from the
console will also want to get the `^C' characters. You can use the
__djgpp_set_ctrl_c library function (see section __djgpp_set_ctrl_c)
if you want Ctrl-C to generate interrupts while console is read in
binary mode.
Note that, for buffered streams (FILE*), you must call
fflush (see section fflush) before setmode, or call
setmode before writing anything to the file, for proper
operation.
When successful, the function will return the previous mode of the given file. In case of failure, -1 is returned and errno is set.
not ANSI, not POSIX
setmode(0, O_BINARY);
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