What exactly is the effect of Ctrl-C on C++ Win32 console applications?

Question

1. Is it possible to handle this event in some way?
2. What happens in terms of stack unwinding and deallocation of static/global objects?

Answer 1

You can test whether stack unwinding occurs, with some simple code:

#include 
#include 
using namespace std;

struct A {
    ~A() { cerr << "unwound" << endl; }
};

int main() {
    A a;
    while(1) {
        Sleep(1000);
    }
}

Whether it occurs not should be implementation dependant, depending on how the runtime handles the Ctrl-C. In my experience, it does not take place.