#include <sys/exceptn.h> int __djgpp_set_ctrl_c(int enable);
This function sets and resets the bit which controls whether signals
SIGINT and SIGQUIT (see section signal) will be raised when
you press the INTR or QUIT keys. By default these generate signals
which, if uncaught by a signal handler, will abort your program.
However, when you call the setmode library function to switch the
console reads to binary mode, or open the console in binary mode for
reading, this generation of signals is turned off, because some
programs want to get the `^C' and `^\' characters as any other
character and handle them by themselves.
__djgpp_set_ctrl_c lets you explicitly determine the effect of
INTR and QUIT keys. When called with non-zero value of
enable, it arranges for SIGINT and SIGQUIT signals
to be generated when the appropriate key is pressed; if you call it with
a zero in enable, these keys are treated as normal characters.
For getting similar effects via the POSIX termios functions, see
section tcsetattr.
Note that the effect of Ctrl-BREAK key is unaffected by this
function; use the _go32_want_ctrl_break library function to
control it.
Also note that in DJGPP, the effect of the interrupt signal will only be
seen when the program is in protected mode (See section signal,
for more details). Thus, if you press Ctrl-C while your
program calls DOS (e.g., when reading from the console), the
SIGINT signal handler will only be called after that call
returns.
The previous state of SIGINT and SIGQUIT generation: 0 if
it was disabled, 1 if it was enabled.
not ANSI, not POSIX
setmode(fileno(stdin), O_BINARY);
if (isatty(fileno(stdin)));
__djgpp_set_ctrl_c(1);
Go to the first, previous, next, last section, table of contents.