Thread: timer in c++?

Another little program/game I'm working on in c++ is, how many times can you press the 'Enter' key in 20 seconds. I've made it output a higher number every time you press enter, but I haven't made the timer. How do you do that?
Here's the code I have allready.

Code:

#include <iostream>
#include <ctime>
using namespace std;

int main()
{
int press = 0;

for(press = 0; press < 1000; press++)
{
cin.get();
cout << press << endl;
}
return 0;
}

How do I get the timer in this code?


Greatfaith.