installer-prompt/src/main.cpp

#include "installerprompt.h"
#include <QApplication>
#include <QScreen>

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QList<InstallerPrompt*> ws;

    // Iterate through all available screens
    for (QScreen *screen : QApplication::screens()) {
        InstallerPrompt *w = new InstallerPrompt();
        w->setGeometry(screen->geometry());
        w->show();
        ws.append(w);
    }

    for (InstallerPrompt *w : ws) {
        for (InstallerPrompt *otherWindow : ws) {
            if (w != otherWindow) {
                // Connect signals and slots for synchronization
                // Example: connect(ws.last(), &InstallerPrompt::someSignal, otherWindow, &InstallerPrompt::someSlot);
            }
        }
    }

    return app.exec();
}