Windows console application - signal for closing event

Question

In windows console application, one can catch pressing ctrl+c by using:

#include 
#incl         


        

Answer 1

The correct one is SIGBREAK, you can try it with:

#include <stdio.h>
#include <signal.h>

void SigInt_Handler(int n_signal)
{
    printf("interrupted\n");
    exit(1);
}

void SigBreak_Handler(int n_signal)
{
    printf("closed\n");
    exit(2);
}

int main(int n_arg_num, const char **p_arg_list)
{
    signal(SIGINT, &SigInt_Handler);
    signal(SIGBREAK, &SigBreak_Handler);
    getchar(); // wait for user intervention
    return 0;
}

Upon closing the console window, the program will print "closed" and will return 2.