EnumDisplayMonitors.cc

#include <iostream>
#include <string>
#include <Windows.h>

BOOL CALLBACK monitor_enum_proc(HMONITOR hMonitor, HDC hdcMonitor, LPRECT lprcMonitor, LPARAM cbData) {
    MONITORINFOEX mi;

    mi.cbSize = sizeof(mi);
    GetMonitorInfo(hMonitor, &mi);

    std::wstring szDevice(mi.szDevice);

    std::cout << mi.rcMonitor.left << ", " << mi.rcMonitor.top << ": ";
    std::wcout << szDevice << std::endl;

    return true;
}

int main() {
    EnumDisplayMonitors(NULL, NULL, monitor_enum_proc, NULL);
    return 0;
}