Check Window

#include <iostream>
#include <Windows.h> // This is needed for some reason, I think to get HWND.

using namespace std;

int main()
{
    int x;
    HWND test_window = FindWindowA(NULL, "Kalkylatorn"); /*Return NULL if the window wasn't found and return
    1 if the window was found*/

    if(test_window)
    {
        cout << "The calculator is open." << endl;
        cin >> x;
    }
    else
    {
        cout << "The calculator is not open." << endl;
        cin >> x;
    }
}