Get titles from open windows

Question

I have a C++ program that arrives in a certain part that I need to check if a window is open, if it runs a part of the code.

How could I take the windows open and do this check?

I found a link that could help in this question, the answer from below helped me yes, but for people in the future I will leave this link -> List Open Windows On Windows It’s C# But There Are Native Functions Of WinAPI So It Is Good.

Answer 1

I think this solves what you want:

#include <iostream>
#include <windows.h>
using namespace std;

BOOL CALLBACK EnumWindowsProc(HWND hwnd, LPARAM lParam);

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR pCmdLine, int iCmdShow) {
    EnumWindows(EnumWindowsProc, NULL);
    return 0;
}

BOOL CALLBACK EnumWindowsProc(HWND hwnd, LPARAM lParam) {
    char class_name[80];
    char title[80];
    GetClassName(hwnd,class_name, sizeof(class_name));
    GetWindowText(hwnd,title,sizeof(title));
    cout <<"Window title: "<<title<<endl;
    cout <<"Class name: "<<class_name<<endl<<endl;    
    return TRUE;
}

I put in the Github for future reference.

If you don’t do exactly what you want the way is this to adapt.

Documentation.

According to the comments I found this other solution in the OS that filters the windows that are active. It is in C and is more complex but seems to solve at least part of the problem.