How can I catch a ctrl-c event

Question

How do I catch a Ctrl C event in C

User · Answer

Yeah  this is a platform dependent question   If you are writing a console program on POSIX  use the signal API   include  lt signal h gt     In a WIN32 GUI application you should handle the WM KEYDOWN message

User · Answer

For a Windows console app  you want to use SetConsoleCtrlHandler to handle CTRL C and CTRL BREAK   See here for an example

User · Answer

You have to catch the SIGINT signal  we are talking POSIX right    See  Gab Royer  s answer for sigaction   Example    include  lt signal h gt   include  lt stdlib h gt   include  lt stdio h gt   void my handler sig t s              printf  Caught signal  d n  s              exit 1        int main int argc char   argv       signal  SIGINT my handler       while 1      return 0

User · Answer

signal isn t the most reliable way as it differs in implementations  I would recommend using sigaction  Tom s code would now look like this     include  lt signal h gt   include  lt stdlib h gt   include  lt stdio h gt   include  lt unistd h gt   void my handler int s              printf  Caught signal  d n  s              exit 1        int main int argc char   argv        struct sigaction sigIntHandler      sigIntHandler sa handler   my handler     sigemptyset  amp sigIntHandler sa mask      sigIntHandler sa flags   0      sigaction SIGINT   amp sigIntHandler  NULL       pause        return 0

[c++] How can I catch a ctrl-c event?

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